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Location: Pecos, United States GoMining is one of the largest Bitcoin mining ecosystems in the world, serving millions of users globally. We run our own industrial-scale mining infrastructure across the United States — a fleet of more than 80,000 machines — and we keep expanding. We're looking for an experienced ASIC Repair Engineer who can diagnose and repair Bitcoin mining equipment at the component level, keeping that fleet running at maximum uptime. Relocation support available! We welcome candidates from across the U.S. and provide a relocation package for those moving closer to one of our data center locations. Responsibilities Diagnose and repair ASIC miners, including Bitmain and MicroBT equipment Troubleshoot and repair hashboards, control boards and power circuits at component level Diagnose chip failures, voltage irregularities and board-level defects Perform SMD and BGA soldering and component replacement Configure, test and commission repaired equipment Keep repair records, inventory updates and technical documentation Work with site technicians and site management to keep fleet uptime high Support preventive maintenance and hardware optimization Requirements 3+ years repairing Bitcoin mining equipment at component level Hands-on experience with Bitmain miners (S19 XP , S21, T21 or similar) Hands-on experience with WhatsMiner equipment (M30++, M50 series or similar) Strong understanding of ASIC miner architecture and diagnostics Practical SMD and BGA soldering skills Ability to read schematics and technical documentation Solid knowledge of electronics, circuit design and power systems Experience at a mining farm, service center or high-density data center is a strong plus Benefits Professional growth: support for courses, conferences. Paid leave: up to 20 vacation days, 15 sick days, plus holidays. Recognition programs: structured performance reviews and team awards. 401k benefits. $108,000–$240,000 per year A strong fixed base plus performance pay tied to the work you complete Our engineers average around $180,000 a year that's the middle of the team, not the top of it. With a fleet this size, the bench is always full Relocation package available

Location: Fountain Inn, United States GoMining is one of the largest Bitcoin mining ecosystems in the world, serving millions of users globally. We run our own industrial-scale mining infrastructure across the United States — a fleet of more than 80,000 machines — and we keep expanding. We're hiring a PSU Repair Engineer to diagnose and repair the power supplies that keep that fleet running. Relocation support available! We welcome candidates from across the U.S. and provide a relocation package for those moving closer to one of our data center locations. Responsibilities Diagnose and repair power supply units used in Bitmain and MicroBT mining equipment boards Perform component-level diagnostics on power supply circuits and electronic Troubleshoot IC failures, voltage irregularities, short circuits and PCB-level faults Perform SMD and BGA soldering, rework and component replacement Repair and restore power circuits, control boards and other electronic assemblies Configure, test and commission repaired equipment Keep accurate repair records, inventory information and technical documentation Work with technicians, engineers and site management to maximize fleet uptime Support preventive maintenance and equipment optimization Requirements 3+ years of hands-on component-level repair of Bitcoin mining equipment Strong experience with Bitmain power supplies, including APW11, APW12 and APW17 Hands-on experience with MicroBT WhatsMiner equipment and power supplies Strong understanding of PSU architecture, operating principles and diagnostic methods Strong SMD and BGA soldering and rework skills Ability to read schematics, board diagrams and datasheets Solid knowledge of electronics, circuit design, power electronics and electrical systems Previous experience at a mining facility , ASIC repair center or high-density data center is a significant advantage Benefits Professional growth: support for courses, conferences. Paid leave: up to 20 vacation days, 15 sick days, plus holidays. Recognition programs: structured performance reviews and team awards. 401k benefits. $108,000–$240,000 per year A strong fixed base plus performance pay tied to the work you complete Our engineers average around $180,000 a year that's the middle of the team, not the top of it. With a fleet this size, the bench is always full Relocation package available

Location: Williston, United States GoMining is one of the largest Bitcoin mining ecosystems in the world, serving millions of users globally. We run our own industrial-scale mining infrastructure across the United States — a fleet of more than 80,000 machines — and we keep expanding. We're hiring a PSU Repair Engineer to diagnose and repair the power supplies that keep that fleet running. Relocation support available! We welcome candidates from across the U.S. and provide a relocation package for those moving closer to one of our data center locations. Responsibilities Diagnose and repair power supply units used in Bitmain and MicroBT mining equipment boards Perform component-level diagnostics on power supply circuits and electronic Troubleshoot IC failures, voltage irregularities, short circuits and PCB-level faults Perform SMD and BGA soldering, rework and component replacement Repair and restore power circuits, control boards and other electronic assemblies Configure, test and commission repaired equipment Keep accurate repair records, inventory information and technical documentation Work with technicians, engineers and site management to maximize fleet uptime Support preventive maintenance and equipment optimization Requirements 3+ years of hands-on component-level repair of Bitcoin mining equipment Strong experience with Bitmain power supplies, including APW11, APW12 and APW17 Hands-on experience with MicroBT WhatsMiner equipment and power supplies Strong understanding of PSU architecture, operating principles and diagnostic methods Strong SMD and BGA soldering and rework skills Ability to read schematics, board diagrams and datasheets Solid knowledge of electronics, circuit design, power electronics and electrical systems Previous experience at a mining facility , ASIC repair center or high-density data center is a significant advantage Benefits Professional growth: support for courses, conferences. Paid leave: up to 20 vacation days, 15 sick days, plus holidays. Recognition programs: structured performance reviews and team awards. 401k benefits. $108,000–$240,000 per year A strong fixed base plus performance pay tied to the work you complete Our engineers average around $180,000 a year that's the middle of the team, not the top of it. With a fleet this size, the bench is always full Relocation package available

Location: Menlo Park Workplace: Hybrid Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. We have become a market leader in Bitcoin security and Layer-2 technologies. Our products are designed to make financial systems more efficient, secure, and robust. We are seeking a Technical Solutions Consultant (Pre-Sales), a customer-facing technical expert responsible for helping financial institutions evaluate, design, and adopt Blockstream's enterprise software solutions. Operating within the Consulting Services organization, the Solutions Engineer partners closely with Enterprise Sales, Product Management, Engineering, and Delivery teams to support the customer journey from technical discovery and solution architecture through product demonstrations, Proof of Concepts (PoCs), and technical validation. This is not a traditional pre-sales role. You will spend significant time working directly with customers, often onsite, understanding their business, technical, and regulatory requirements, designing enterprise-grade solutions, and acting as a trusted technical advisor throughout the sales cycle. You will help financial institutions understand how Blockstream's products solve complex business challenges while ensuring proposed solutions are scalable, practical, and aligned with customer needs. What You'll Be Doing (Responsibilities): Customer Engagement & Technical Sales - Partner with Enterprise Sales to support strategic opportunities across financial institutions. - Lead technical discovery workshops to understand customers' business, operational, regulatory, and technical requirements. - Build trusted relationships with customer stakeholders, including CIOs, CTOs, Enterprise Architects, Operations, and Engineering teams. - Deliver compelling product demonstrations, technical presentations, and solution walkthroughs. - Support Proof of Concepts (PoCs), solution validation activities, and technical evaluations. - Serve as the primary technical advisor throughout the sales process. Solution Design & Architecture - Design end-to-end solution architectures leveraging Blockstream's enterprise software products. - Translate customer requirements into scalable technical solutions and implementation approaches. - Define solution assumptions, integration approaches, deployment models, and technical dependencies. - Collaborate with customers to identify implementation risks and recommend best practices. Commercial & Deal Support - Lead or contribute to responses for RFPs, RFIs, technical questionnaires, and security assessments. - Support commercial discussions by providing technical expertise and solution positioning. - Help package Blockstream products into repeatable enterprise offerings, demonstrations, and implementation approaches. - Clearly communicate the value proposition and differentiators of Blockstream's products. Cross-Functional Collaboration - Partner with Product Management, Engineering, Security, Delivery, and Consulting teams. - Feed customer and market feedback back to Product Management. - Help improve demos, technical collateral, reference architectures, and solution playbooks. - Contribute to repeatable implementation methodologies and sales enablement materials. What We Look for In You (Required Qualifications): - 5-8 years of experience in Solutions Engineering, Sales Engineering, Solution Architecture, Technical Consulting, or Enterprise Software Pre-Sales. - Experience supporting enterprise software sales within banking, financial services, fintech, or technology infrastructure environments. - Strong understanding of enterprise software architecture, APIs, integration patterns, cloud technologies, and modern software deployment models. - Experience designing end-to-end enterprise solutions for complex customer environments. - Strong presentation, communication, and storytelling skills, with the ability to explain complex technical concepts to both business and technical audiences. - Experience delivering customer workshops, technical demonstrations, and executive presentations. - Experience supporting RFPs, RFIs, technical proposals, and solution validation. - Ability to work collaboratively across Enterprise Sales, Product, Engineering, Consulting, and Delivery teams. - Self-starter with proven ability to manage multiple customer engagements while delivering a high-quality customer experience. - Willingness to travel regularly to customer locations. Languages: - Excellent English skills required Location: - Menlo Park (Hybrid) Nice To Haves (Preferred Qualifications): - Experience working with financial institutions, including private banking, wealth management, custody, payments, treasury, or capital markets. - Background in blockchain, Bitcoin, digital assets, tokenization, or fintech. - Knowledge of core banking platforms, financial market infrastructure, or enterprise integration technologies. - Familiarity with Layer-2 technologies and digital asset infrastructure. - Experience in enterprise software organizations serving regulated industries. - Track record of feeding customer and market feedback into product strategy.

Location: New York Workplace: Remote Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. We have become a market leader in Bitcoin security and Layer-2 technologies. Our products are designed to make financial systems more efficient, secure, and robust. We are seeking a Technical Solutions Consultant (Pre-Sales), a customer-facing technical expert responsible for helping financial institutions evaluate, design, and adopt Blockstream's enterprise software solutions. Operating within the Consulting Services organization, the Solutions Engineer partners closely with Enterprise Sales, Product Management, Engineering, and Delivery teams to support the customer journey from technical discovery and solution architecture through product demonstrations, Proof of Concepts (PoCs), and technical validation. This is not a traditional pre-sales role. You will spend significant time working directly with customers, often onsite, understanding their business, technical, and regulatory requirements, designing enterprise-grade solutions, and acting as a trusted technical advisor throughout the sales cycle. You will help financial institutions understand how Blockstream's products solve complex business challenges while ensuring proposed solutions are scalable, practical, and aligned with customer needs. What You'll Be Doing (Responsibilities): Customer Engagement & Technical Sales - Partner with Enterprise Sales to support strategic opportunities across financial institutions. - Lead technical discovery workshops to understand customers' business, operational, regulatory, and technical requirements. - Build trusted relationships with customer stakeholders, including CIOs, CTOs, Enterprise Architects, Operations, and Engineering teams. - Deliver compelling product demonstrations, technical presentations, and solution walkthroughs. - Support Proof of Concepts (PoCs), solution validation activities, and technical evaluations. - Serve as the primary technical advisor throughout the sales process. Solution Design & Architecture - Design end-to-end solution architectures leveraging Blockstream's enterprise software products. - Translate customer requirements into scalable technical solutions and implementation approaches. - Define solution assumptions, integration approaches, deployment models, and technical dependencies. - Collaborate with customers to identify implementation risks and recommend best practices. Commercial & Deal Support - Lead or contribute to responses for RFPs, RFIs, technical questionnaires, and security assessments. - Support commercial discussions by providing technical expertise and solution positioning. - Help package Blockstream products into repeatable enterprise offerings, demonstrations, and implementation approaches. - Clearly communicate the value proposition and differentiators of Blockstream's products. Cross-Functional Collaboration - Partner with Product Management, Engineering, Security, Delivery, and Consulting teams. - Feed customer and market feedback back to Product Management. - Help improve demos, technical collateral, reference architectures, and solution playbooks. - Contribute to repeatable implementation methodologies and sales enablement materials. What We Look for In You (Required Qualifications): - 5-8 years of experience in Solutions Engineering, Sales Engineering, Solution Architecture, Technical Consulting, or Enterprise Software Pre-Sales. - Experience supporting enterprise software sales within banking, financial services, fintech, or technology infrastructure environments. - Strong understanding of enterprise software architecture, APIs, integration patterns, cloud technologies, and modern software deployment models. - Experience designing end-to-end enterprise solutions for complex customer environments. - Strong presentation, communication, and storytelling skills, with the ability to explain complex technical concepts to both business and technical audiences. - Experience delivering customer workshops, technical demonstrations, and executive presentations. - Experience supporting RFPs, RFIs, technical proposals, and solution validation. - Ability to work collaboratively across Enterprise Sales, Product, Engineering, Consulting, and Delivery teams. - Self-starter with proven ability to manage multiple customer engagements while delivering a high-quality customer experience. - Willingness to travel regularly to customer locations. Languages: - Excellent English skills required. Location: - New York (Remote) Nice To Haves (Preferred Qualifications): - Experience working with financial institutions, including private banking, wealth management, custody, payments, treasury, or capital markets. - Background in blockchain, Bitcoin, digital assets, tokenization, or fintech. - Knowledge of core banking platforms, financial market infrastructure, or enterprise integration technologies. - Familiarity with Layer-2 technologies and digital asset infrastructure. - Experience in enterprise software organizations serving regulated industries. - Track record of feeding customer and market feedback into product strategy.

Location: Lugano, Switzerland Workplace: remote Join Tether and Shape the Future of Digital Finance At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction. Innovate with Tether Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT , relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services. But that’s just the beginning: Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities. Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET , our flagship app that redefines secure and private data sharing. Tether Education : Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity. Tether Evolution : At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways. Why Join Us? Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry. If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you. Are you ready to be part of the future? About the job As a Senior Frontend Engineer, you’re not just building interfaces—you’re translating AI intelligence into meaningful human experiences. Your work directly impacts how users perceive, trust, and rely on QV.AC , making you essential to the company’s success in the competitive local AI assistant market Responsibilities Deliver new features and bug fixes with a focus on reliability, performance, and user satisfaction Maintain high codebase quality through consistent coding standards, code reviews, and automated testing Design and develop responsive, high-performance UI and application state ensuring seamless user experiences across platforms Proven experience with React/Preact and modern JavaScript/TypeScript in production-scale applications. Strong competency in state management (Redux, Redux Toolkit, Zustand, or similar). Ability to write modular, maintainable, and well tested code. Solid skillset in testing & debugging complex frontend applications. Deep interest or experience with P2P technologies or distributed systems. Comfort working in a remote, globally distributed team; good communication skills. Preferred Qualifications Experience with desktop application development (Electron, Tauri, or similar runtimes). Familiarity with video/audio APIs (WebRTC, media streams) and real-time communication. Demonstrated ability to optimize UI performance: rendering, memory management. Experience building cross platform applications (macOS, Windows, Linux, etc). Bonus: Past contributions to OSS projects, especially in P2P or decentralized tech. Important information for candidates Recruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles: Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/ Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website. Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms. Double-check email addresses. All communication from us will come from emails ending in @ tether.to or @ tether.io We will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately. When in doubt, feel free to reach out through our official website.

В роли старшего инженера-программиста в команде Blockchain Networks компании Coinbase предстоит разрабатывать и внедрять инфраструктуру блокчейн-сетей, которая упрощает взаимодействие с блокчейнами через надежные API платформы. Задачи включают руководство крупными проектами, такими как интеграция новых цепочек, реархитектура систем и миграция данных с целью повышения производительности, надежности и снижения затрат. Необходимо определять и поддерживать API, соглашения об уровне обслуживания (SLO) и средства наблюдения за системами, а также участвовать в дежурствах. Взаимодействие с продуктовыми и платформенными командами для установления контрактов данных и выпуска SDK и платформенных примитивов, способствующих широкому использованию внутри Coinbase, также входит в обязанности. Требуется глубокое понимание нескольких ведущих блокчейн-протоколов, таких как Bitcoin и Ethereum, и применение этих знаний для упрощения операций между цепочками. Кандидат должен иметь более 5 лет опыта разработки программного обеспечения с подтвержденным управлением производственными сервисами в сервис-ориентированной архитектуре, опыт проектирования, масштабирования и поддержки распределенных систем с высокой пропускной способностью и низкой задержкой. Практические навыки работы как минимум с двумя из следующих технологий: Golang, Kafka, Redis, MongoDB или аналогичными инфраструктурными инструментами. Наличие прямого опыта работы с блокчейн-протоколами или криптоинфраструктурой, включая интеграцию с Ethereum, Bitcoin или подобными сетями L1/L2. Способность разбирать сложные системы, включая монолиты и устаревшие архитектуры, на четко ограниченные микросервисы с ясными API-контрактами также необходима.

Задачи: — Проектировать и реализовывать критичные компоненты: policy engine, signing orchestration, key lifecycle, recovery flows, approvals, audit trails, multi-tenant wallet/account сервисы — Строить высоконагруженные multi-tenant SaaS-системы (изоляция тенантов, rate limiting, backpressure и т.д.) — Работать с distributed systems, reliability patterns, security-by-design — Активно использовать AI-инструменты (Claude Code, Cursor, Codex) как core-компетенцию Требования: — Сильные CS fundamentals (concurrency, distributed systems, consistency и т.д.) — 7+ лет backend на Go — Реальный опыт работы с современными AI coding tools + умение критически проверять AI-код — Опыт построения высоконагруженных multi-tenant SaaS — Опыт работы в криптоиндустрии (криптобиржи, блокчейн-проекты, Web3) Будет большим плюсом: — Опыт в custody/wallets/MPC/HSM/Ledger — Blockchain (EVM + Bitcoin обязательно, остальное в плюс) — Регулируемая среда (SOC 2, ISO 27001 и т.д.) — Kubernetes, SRE-практики Условия: — AI-first культуру с бюджетом на инструменты — Сильную команду (криптографы, security, SRE, Product) — Оплата в EUR / USD / криптовалюта — Полностью удалённый формат работы

Задачи: — Развертывание и поддержка full nodes (Ethereum, Bitcoin, Tron) — Настройка и сопровождение RPC, архивных и валидаторных нод — Обеспечение высокой доступности (HA), отказоустойчивости и масштабируемости инфраструктуры — Мониторинг состояния нод (Prometheus, Grafana) — Оптимизация производительности (disk I/O, RAM, CPU, network latency) — Управление обновлениями клиентов и форками сетей — Настройка резервного копирования и восстановления данных — Автоматизация процессов — Работа с облачной инфраструктурой (Hetzner, OVH, AWS, GCP и аналоги) — Обеспечение безопасности (firewalls, access control, DDoS protection) — Поддержка внутренних команд (backend, data, product) через RPC/API endpoints Требования: — Опыт DevOps/SRE от 3-х лет — Практический опыт работы с blockchain nodes — Глубокое понимание Linux (Ubuntu/Debian), networking и системного администрирования — Опыт работы с Docker, Kubernetes — Уверенное владение инструментами мониторинга и логирования — Опыт автоматизации (Bash, Python или Go) — Понимание принципов консенсуса (PoW, PoS, validators) — Опыт работы с high-load системами Будет плюсом: — Опыт запуска валидаторов и участия в staking — Работа с MEV, indexers, archive nodes — Знание специфики L2 решений (Arbitrum, Optimism, zkSync) — Опыт работы с Web3 API (Infura, Alchemy аналоги) — Понимание безопасности ключей и HSM решений Технологический стек: OS: Linux (Ubuntu) Containers: Docker, Kubernetes Infra: Terraform, Ansible Monitoring: Prometheus, Grafana Cloud: AWS / GCP / Hetzner Blockchain clients: Geth, Erigon, Nethermind, Bitcoin Core, Solana Validator

Location: Lugano Workplace: OnSite Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry. First announced at the Bitcoin 2025 conference in Las Vegas in May, Blockstream Enterprise https://blockstream.com/enterprise/ is a Bitcoin-focused software suite enabling banks, prime brokers and corporations to safely and securely custody Bitcoin and manage tokenization and treasury operations. We are seeking a Senior Product Manager to join our Enterprise product team in EMEA, to lead the ongoing development and adoption of our Enterprise solution in the EMEA region. What You’ll Be Doing (Responsibilities): 70% – Technical Product Management - Translate vision into actionable roadmap, own the product narrative and communicate effectively to all levels of the organization - Engage with engineering in technical conversations, understanding implications of technical decisions, and align Engineering work to product goals - Lead project execution, anticipating and resolving roadblocks, coordinating the work of teammates, and clearly communicating goals and status with the organization - Identify product opportunities, translating them into clear milestones and artefacts that align with Business Objectives 30% – Discovery & Research - Support Continuous Discovery habits, engage in market and customer research, follow regulatory/market news, identify trends - Conduct customer discovery workshops, document findings, translate insights into signals and identify gaps in the product roadmap - Drive product requirements, drive product documentation and own the workstream, collaborating with Engineering, Design, Business and Marketing teams - Gather qualitative and quantitative data to be able to support or challenge product assumptions/feature requests What We Look For In You (Required Qualifications): - 7+ years of experience as a Product Manager in a regulated environment with a proven track record of delivering impact - Understanding of blockchain-based technology, crypto custody best practices, and the tokenization lifecycle - Exceptional communication skills and aptitude for conveying complex technical concepts - Comfort with the pace, scrappiness and dynamic environment within a growing startup. - Workplace Lugano or Geneva, Switzerland - Excellent written and verbal English communication skills Nice To Haves (Preferred Qualifications): - Prior work experience on Bitcoin-related products - Experience with other enterprise-focused crypto products and their application / adoption among businesses from the TradFi sector - Deep understanding of traditional financial systems, services & products - A holistic understanding of the major interoperable cash generating units within global money center banks: Commercial banking, investment banking, prime brokerage and asset management - Prior knowledge of Liquid and its role in the Bitcoin ecosystem - Languages: Russian and/or Ukrainian 🔒 Stay Safe from Job Scams All official Blockstream communication will come from an @blockstream.com email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact us at hr@blockstream.com. Learn more about avoiding job scams here https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first.

Location: Zurich Workplace: OnSite Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry. First announced at the Bitcoin 2025 conference in Las Vegas in May, Blockstream Enterprise https://blockstream.com/enterprise/ is a Bitcoin-focused software suite enabling banks, prime brokers and corporations to safely and securely custody Bitcoin and manage tokenization and treasury operations. We are seeking a Senior Product Manager to join our Enterprise product team in EMEA, to lead the ongoing development and adoption of our Enterprise solution in the EMEA region. What You’ll Be Doing (Responsibilities): 70% – Technical Product Management - Translate vision into actionable roadmap, own the product narrative and communicate effectively to all levels of the organization - Engage with engineering in technical conversations, understanding implications of technical decisions, and align Engineering work to product goals - Lead project execution, anticipating and resolving roadblocks, coordinating the work of teammates, and clearly communicating goals and status with the organization - Identify product opportunities, translating them into clear milestones and artefacts that align with Business Objectives 30% – Discovery & Research - Support Continuous Discovery habits, engage in market and customer research, follow regulatory/market news, identify trends - Conduct customer discovery workshops, document findings, translate insights into signals and identify gaps in the product roadmap - Drive product requirements, drive product documentation and own the workstream, collaborating with Engineering, Design, Business and Marketing teams - Gather qualitative and quantitative data to be able to support or challenge product assumptions/feature requests What We Look For In You (Required Qualifications): - 7+ years of experience as a Product Manager in a regulated environment with a proven track record of delivering impact - Understanding of blockchain-based technology, crypto custody best practices, and the tokenization lifecycle - Exceptional communication skills and aptitude for conveying complex technical concepts - Comfort with the pace, scrappiness and dynamic environment within a growing startup. - Currently residing in the Zurich, Switzerland - Excellent written and verbal English communication skills Nice To Haves (Preferred Qualifications): - Prior work experience on Bitcoin-related products - Experience with other enterprise-focused crypto products and their application / adoption among businesses from the TradFi sector - Deep understanding of traditional financial systems, services & products - A holistic understanding of the major interoperable cash generating units within global money center banks: Commercial banking, investment banking, prime brokerage and asset management - Prior knowledge of Liquid and its role in the Bitcoin ecosystem - Languages: English, Russian and/or Ukrainian 🔒 Stay Safe from Job Scams All official Blockstream communication will come from an @blockstream.com email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact us at hr@blockstream.com. Learn more about avoiding job scams here https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first.

Ищем сильного Full-Stack разработчика с хорошим пониманием backend/frontend-разработки, баз данных, сетевого взаимодействия и архитектуры высоконагруженных систем. Основной стек Backend: Node.js, Express, Sequelize Frontend: React, Vite, Tailwind CSS, Zustand, Axios Databases: MySQL, PostgreSQL Real-time: WebSocket, Socket.IO, Centrifugo Базы данных — Уверенная работа с MySQL / PostgreSQL — Транзакции, блокировки (locks), конкурентный доступ — Построение и оптимизация сложных SQL-запросов — Понимание race conditions и проблем конкурентности Infrastructure / DevOps — Docker — Настройка Nginx — Redis, RabbitMQ и очереди задач — Easticsearch + Kibana — Prometheus + Grafana — Понимание CDN — Понимание принципов защиты от DDoS на уровнях L3/L7 — Понимание работы proxy / reverse proxy Frontend — React — Vite — Понимание нативной конфигурации Webpack — Tailwind CSS — Zustand — Axios — Базовое знание PixiJS — Базовое понимание SEO API / Integrations — Умение разбираться и работать с недокументированными API — OAuth и основные принципы авторизации — Telegram Bot API — Опыт/понимание работы с TDLib AI-инструменты — Уверенная работа с Claude и ChatGPT — Использование AI-инструментов в ежедневной разработке: анализ и написание кода, рефакторинг, отладка и поиск решений — Умение грамотно ставить технические задачи нейросетям и проверять результат Security — Понимание SQL Injection и способов защиты — Проверка подмены типов и некорректных входных данных — Race conditions — Базовое понимание криптографии: RSA, SHA и хеширование — Понимание обфускации — Понимание browser/device fingerprinting Architecture — Умение проектировать архитектуру высоконагруженных систем — Понимание масштабирования, отказоустойчивости и конкурентной обработки данных — Понимание взаимодействия между сервисами, очередями, БД, кешем и real-time компонентами Будет плюсом — Базовое понимание теории вероятностей — Понимание принципов работы blockchain и основных сетей: Bitcoin, TON, Ethereum/ERC, TRON — Опыт работы с нестандартными API и интеграциями

Задачи: — Разработка full-stack приложений с использованием Node.js и React — Работа с backend и frontend, базами данных, сетевым взаимодействием и архитектурой высоконагруженных систем Требования: — Уверенное владение backend: Node.js, Express, Sequelize — Опыт работы с frontend: React, Vite, Tailwind CSS, Zustand, Axios — Уверенная работа с базами данных MySQL и PostgreSQL, включая транзакции, блокировки, конкурентный доступ, оптимизацию сложных SQL-запросов — Понимание race conditions и проблем конкурентности — Навыки работы с инфраструктурой и DevOps: Docker, настройка Nginx, Redis, RabbitMQ, очереди задач, Elasticsearch + Kibana, Prometheus + Grafana — Понимание CDN, защиты от DDoS на уровнях L3/L7, работы proxy и reverse proxy — Знание API и интеграций: работа с недокументированными API, OAuth, Telegram Bot API, TDLib — Опыт использования AI-инструментов Claude и ChatGPT для анализа, написания кода, рефакторинга, отладки и постановки технических задач — Понимание вопросов безопасности: SQL Injection, проверка типов и входных данных, race conditions, базовое понимание криптографии (RSA, SHA), обфускация, browser/device fingerprinting — Умение проектировать архитектуру высоконагруженных систем, понимание масштабирования, отказоустойчивости, взаимодействия сервисов, очередей, БД, кеша и real-time компонентов Будет плюсом: — Базовое понимание теории вероятностей — Знание принципов работы blockchain и основных сетей: Bitcoin, TON, Ethereum/ERC, TRON — Опыт работы с нестандартными API и интеграциями

Задачи: — backend и frontend разработка с использованием Node.js, Express, Sequelize, React, Vite, Tailwind CSS, Zustand, Axios — работа с базами данных MySQL и PostgreSQL, включая транзакции, блокировки, конкурентный доступ, оптимизацию сложных SQL-запросов — работа с real-time технологиями WebSocket, Socket.IO, Centrifugo — настройка и использование инфраструктурных инструментов: Docker, Nginx, Redis, RabbitMQ, Elasticsearch, Kibana, Prometheus, Grafana — обеспечение безопасности приложений, защита от SQL Injection, проверка типов данных, понимание криптографии и методов обфускации — проектирование архитектуры высоконагруженных систем, масштабирование, отказоустойчивость, взаимодействие между сервисами, очередями, БД, кешем и real-time компонентами Требования: — уверенное владение MySQL и PostgreSQL, понимание race conditions и проблем конкурентности — опыт работы с OAuth, Telegram Bot API, TDLib — умение работать с недокументированными API — базовые знания PixiJS, SEO — понимание принципов защиты от DDoS на уровнях L3/L7, работы proxy и reverse proxy — опыт использования AI-инструментов Claude и ChatGPT для анализа, написания кода, рефакторинга и отладки — базовое понимание криптографии (RSA, SHA), browser/device fingerprinting Будет плюсом: — базовое понимание теории вероятностей — понимание принципов работы blockchain и основных сетей: Bitcoin, TON, Ethereum/ERC, TRON — опыт работы с нестандартными API и интеграциями

Задачи: — Разработка full-stack приложений с использованием Node.js и React Требования: — Хорошее понимание backend и frontend разработки — Опыт работы с базами данных MySQL и PostgreSQL, включая транзакции, блокировки, конкурентный доступ — Навыки построения и оптимизации сложных SQL-запросов — Понимание race conditions и проблем конкурентности — Опыт работы с Docker, настройкой Nginx, Redis, RabbitMQ, Elasticsearch, Kibana, Prometheus, Grafana — Понимание CDN, принципов защиты от DDoS на уровнях L3/L7, работы proxy и reverse proxy — Знание React, Vite, Tailwind CSS, Zustand, Axios, базовые знания PixiJS и SEO — Умение работать с недокументированными API, OAuth, Telegram Bot API, TDLib — Уверенная работа с AI-инструментами Claude и ChatGPT для анализа, написания кода, рефакторинга, отладки — Понимание SQL Injection и способов защиты, проверка подмены типов и некорректных входных данных — Базовое понимание криптографии (RSA, SHA), обфускации, browser/device fingerprinting — Умение проектировать архитектуру высоконагруженных систем, понимание масштабирования, отказоустойчивости, взаимодействия сервисов, очередей, БД, кеша и real-time компонентов Будет плюсом: — Базовое понимание теории вероятностей — Понимание принципов работы blockchain и основных сетей: Bitcoin, TON, Ethereum/ERC, TRON — Опыт работы с нестандартными API и интеграциями

Ищем сильного Full-Stack разработчика с хорошим пониманием backend/frontend-разработки, баз данных, сетевого взаимодействия и архитектуры высоконагруженных систем. Основной стек Backend: Node.js, Express, Sequelize Frontend: React, Vite, Tailwind CSS, Zustand, Axios Databases: MySQL, PostgreSQL Real-time: WebSocket, Socket.IO, Centrifugo Базы данных Уверенная работа с MySQL / PostgreSQL Транзакции, блокировки (locks), конкурентный доступ Построение и оптимизация сложных SQL-запросов Понимание race conditions и проблем конкурентности Infrastructure / DevOps Docker Настройка Nginx Redis, RabbitMQ и очереди задач Elasticsearch + Kibana Prometheus + Grafana Понимание CDN Понимание принципов защиты от DDoS на уровнях L3/L7 Понимание работы proxy / reverse proxy Frontend React Vite Понимание нативной конфигурации Webpack Tailwind CSS Zustand Axios Базовое знание PixiJS Базовое понимание SEO API / Integrations Умение разбираться и работать с недокументированными API OAuth и основные принципы авторизации Telegram Bot API Опыт/понимание работы с TDLib AI-инструменты Уверенная работа с Claude и ChatGPT Использование AI-инструментов в ежедневной разработке: анализ и написание кода, рефакторинг, отладка и поиск решений Умение грамотно ставить технические задачи нейросетям и проверять результат Security Понимание SQL Injection и способов защиты Проверка подмены типов и некорректных входных данных Race conditions Базовое понимание криптографии: RSA, SHA и хеширование Понимание обфускации Понимание browser/device fingerprinting Architecture Умение проектировать архитектуру высоконагруженных систем Понимание масштабирования, отказоустойчивости и конкурентной обработки данных Понимание взаимодействия между сервисами, очередями, БД, кешем и real-time компонентами Будет плюсом Базовое понимание теории вероятностей Понимание принципов работы blockchain и основных сетей: Bitcoin, TON, Ethereum/ERC, TRON Опыт работы с нестандартными API и интеграциями

Задачи: — full-stack разработка с использованием Node.js и React Требования: — уверенное владение backend: Node.js, Express, Sequelize — уверенное владение frontend: React, Vite, Tailwind CSS, Zustand, Axios — опыт работы с базами данных MySQL и PostgreSQL, включая транзакции, блокировки, конкурентный доступ, оптимизацию сложных SQL-запросов — понимание race conditions и проблем конкурентности — опыт работы с real-time технологиями: WebSocket, Socket.IO, Centrifugo — навыки работы с инфраструктурой и DevOps: Docker, настройка Nginx, Redis, RabbitMQ, очереди задач, Elasticsearch, Kibana, Prometheus, Grafana — понимание CDN, принципов защиты от DDoS на уровнях L3/L7, работы proxy и reverse proxy — умение работать с API и интеграциями, включая недокументированные API, OAuth, Telegram Bot API, TDLib — опыт использования AI-инструментов Claude и ChatGPT для анализа, написания кода, рефакторинга, отладки и поиска решений — понимание вопросов безопасности: SQL Injection, проверка типов и входных данных, race conditions, базовое понимание криптографии (RSA, SHA, хеширование), обфускация, browser/device fingerprinting — умение проектировать архитектуру высоконагруженных систем с учетом масштабирования, отказоустойчивости, конкурентной обработки данных, взаимодействия сервисов, очередей, БД, кеша и real-time компонентов Будет плюсом: — базовое понимание теории вероятностей — понимание принципов работы blockchain и основных сетей: Bitcoin, TON, Ethereum/ERC, TRON — опыт работы с нестандартными API и интеграциями

Location: Batumi, Georgia; Berlin, Germany; Munich, Germany; Lisbon, Portugal; Warsaw, Poland; Barcelona, Spain The Vault is an MPC-based crypto custody platform for institutional and retail clients, running threshold signing across HSM and Ledger hardware. We're scaling toward Series A, launching our productized platform in 2026, and publishing original cryptographic research alongside the product. We're hiring a Staff Engineer to design and ship the custody platform's hardest backend code. This is a hands-on IC role with real technical leadership — no people management — where you drive non-trivial initiatives through code, RFCs, and mentorship. You'll shape architecture in your area of ownership; platform-wide decisions sit with technical leadership. We're AI-forward (Claude Code, Cursor, Codex), and we need engineers who can read AI-generated code critically and catch what it misses — not just prompt it. You'll naturally gravitate toward either the security-critical core (MPC, threshold signing, HSM/Ledger integration, key lifecycle) or the faster-moving periphery (chain adapters, integrations, APIs/SDKs). What you'll do Design, write, and ship critical platform components: policy engine, signing orchestration, key lifecycle workflows, recovery flows, approvals, audit trails, multi-tenant wallet and account services. Lead non-trivial cross-cutting initiatives in your area — through written RFCs, design reviews, and code, not through hierarchy. Build high-load, multi-tenant SaaS systems: tenant isolation, quotas, rate limits, backpressure, concurrency control, predictable latency under spikes. Distributed systems & reliability: idempotency, retries, outbox/inbox, event-driven workflows, sagas and state machines, replay, graceful degradation. Security-by-design: least privilege, secret handling, mTLS/JWT, tamper-evident logs, audit-ready data models — designed for SOC 2, ISO 27001, and DORA scope from day one. Performance & data: profiling, load testing, benchmarking, contention analysis, GC tuning; strong relational modelling (Postgres or equivalent), migrations, indexing, clear consistency boundaries. AI-assisted development as a core competency: ship production code with Claude Code, Cursor, and Codex; build the prompt and agent patterns that work for your area; contribute to the company's AI engineering practices; know when to use AI heavily (periphery, integrations, tests, docs) and when not to (cryptographic core, signing paths) where blind generation is unsafe. Set patterns and shared libraries for the services your area touches; raise the bar through code review and example. Own features end-to-end: design notes / RFCs, code, tests, observability, rollout, on-call. No "throw it over the wall" handoffs. Mentor senior engineers: your reviews and your written designs are the strongest signal to the rest of the team. Requirements Must-have experience Strong CS fundamentals — our primary screening criterion. You can reason from first principles about concurrency, distributed systems, consistency models, networking, and OS behaviour. You know not just what locks and channels do, but why and when. You understand what's happening under the hood, not only at the API level. Ownership mindset. You've owned non-trivial production systems end-to-end — design, ship, measure, improve, on-call. You don't wait to be told what to do, and you don't ship code you don't understand. 10+ years backend engineering, including 3+ years operating at Staff level (or equivalent senior IC scope). Strong production experience in a modern systems language — Go, Rust, Java, C++, or comparable. Hands-on Go experience, or genuine readiness to ramp on Go in the first month. Track record of Staff-level technical leadership through code, RFCs, and influence — without formal authority over teams. You can point to RFCs you wrote that the team adopted, initiatives you drove without being the manager, patterns you set that outlasted you. Proven track record building high-load, multi-tenant SaaS in production (HA, incident response, SLOs). Hands-on with modern backend stacks: gRPC/HTTP, queues/streams, caching, relational databases, Kafka/NATS or equivalent. Strong testing discipline: unit/integration/contract tests, testability-first design, deterministic CI. Strong observability habits: structured logging, metrics, tracing, end-to-end production debugging. REQUIRED: production-grade use of modern AI coding tools (Claude Code, Cursor, Codex, or comparable). You can point at what you've built with them. You read AI-generated code as a hostile reviewer, not a grateful recipient — you have instincts for what AI tends to get wrong, and you don't ship code you couldn't have written yourself. Nice to have Exposure to custody, wallets, or signing systems (MPC, HSM, TEE, key management, approvals). Hardware wallet integration (Ledger). Multiple blockchain ecosystems (EVM and Bitcoin minimum; Cosmos, Solana, others a plus). Built custom agents, MCP integrations, or in-repo AI workflows that compounded a team's productivity. Designed and run evals for AI-generated code (correctness, security, style). Kubernetes and service mesh in production; SRE practices. Regulated-environment experience (fintech, security audits, compliance-driven engineering). Threat modelling and security review participation. Familiarity with SOC 2, ISO 27001, and DORA — enough to design for them. What this role is NOT A people management role. A pure architecture / whiteboard role. You write production code in this codebase every week, and platform-wide architectural ownership sits elsewhere. A research-only cryptography role. You collaborate with our Cryptography Researcher; your focus is platform engineering, not protocol design. Pure feature ticket execution. If you wait to be told what to do, this won't work. Benefits A Staff IC role with real technical leadership — no people management, no sprint mechanics gauntlet, no architecture-by-committee. An AI-forward engineering culture with budget and autonomy for the tooling, models, and agents you need. Direct peers in cryptography research, security architecture, product, and delivery — you're not the only senior voice in the room. Fully remote, any time zone with reasonable overlap with EU/CIS hours. Competitive comp at the Staff engineer band; equity participation; full benefits. A product approaching Series A with paying institutional customers and a published cryptographic research line