Location: Cyprus; Ukraine
Workplace: Remote
WHO ARE WE?
Welltech is a global wellness technology company with Ukrainian roots. Our mission is to build and scale wellness apps globally through state-of-the-art, tech-driven performance marketing.
We are one of the most established players in the wellness app space, and we are accelerating. Over 25.5 million people across the world use our apps — Muscle Booster, Yoga-Go, and WalkFit — to build healthier habits, move more, and feel better every day. Every subscription represents a real person making a real change in their life, and we take that seriously.
With 500+ people across hubs in Cyprus, Ukraine, Poland, Spain, and the UK, we combine the scale of a market leader and the drive of a team that's just getting started.
The Product Engineer Mindset
We don’t hire people to implement specs. We hire people who can spot the right problem to solve, talk directly to product, design, data, and users to sharpen it, and ship the thinnest version that proves the bet, then iterate. If this is you, you probably:
- Measure your work in outcomes, not output. A feature isn’t done when it merges; it’s done when the metric moves, or you’ve learned it won’t, and killed it.
- Go to the source. You don’t wait for a perfect PRD. You sit with PMs, designers, marketers, and data, and sometimes users directly, to understand what’s actually being asked.
- Own things end-to-end. From the first conversation about a problem through architecture, code, rollout, monitoring, and the follow-up experiment. You don’t hand work off at a boundary.
- Have a strong bias to ship. Prototypes, A/B tests, feature flags, kill switches. You’d rather get something in front of users this week than a perfect plan in two months.
- Treat AI as leverage, not a novelty. You use agentic workflows to compress the loop between idea and learning, for yourself and the team.
What You’ll Own
This is an ownership role, not a feature factory seat. You’ll be on the hook for outcomes across the stack, not just the code in your area:
- A cross-platform foundation, end to end. Mobile, web, BFF, and infrastructure layers, built and evolved with an AI-first, agentic development approach, and held to outcomes you helped define.
- Scalable foundations for health & fitness apps. React Native and modern web technologies, designed so product teams can ship and experiment faster without rederiving the basics each time.
- The discovery loop with stakeholders. Working directly with product, design, marketing, and data to translate business bets into running experiments, not just tickets in a backlog.
- AI-agentic workflows across the SDLC. You’ll continuously improve how the team uses AI to raise productivity, code quality, and delivery speed, and prove the impact.
- Shared platform capabilities. Internal tooling, CI/CD pipelines, and AI-assisted workflows that make every engineer at Welltech faster and the product better.
- Native mobile and media experiences. Video playback, streaming, and HLS, owned from native integration through user-perceived quality.
- Modular, reusable systems. Backend-driven UI, white-label capabilities, and the architectural choices that let one team’s work compound for the next.
- Reliable integrations. Between frontend clients, BFF services, and platform infrastructure, with you on the hook for the health of the seams.
- The engineering culture. Architecture discussions, code reviews or pairing when working on trunk based development workflows, documentation, and continuous improvement, leading by what you ship and how you ship it.
WHAT WE’RE LOOKING FOR
Key responsibilities:
- Build and evolve a cross-platform ecosystem covering mobile, web, BFF, and infrastructure layers using an AI-first, agentic development approach
- Design scalable foundations for health & fitness applications powered by React Native and modern web technologies
- Work directly with product, design, and marketing stakeholders to rapidly translate business needs into scalable technical solutions and experiments
- Develop and continuously improve AI-agentic workflows across the full development lifecycle to increase team productivity, code quality, and delivery speed
- Develop shared platform capabilities, internal tooling, CI/CD pipelines, and AI-assisted workflows that improve development speed and product quality
- Work on native mobile integrations and advanced media experiences, including video playback, streaming, and HLS-based solutions
- Contribute to modular architectures, reusable systems, backend-driven UI solutions, and white-label application capabilities
- Build reliable and scalable integrations between frontend clients, BFF services, and platform infrastructure
- Participate in architecture discussions, code reviews, documentation, and continuous improvement of engineering workflows
Required skills:
- Strong commercial experience with React Native and modern TypeScript-based application development
- Solid understanding of full-stack architecture including mobile, web, BFF, and cloud/infrastructure layers
- Experience building scalable cross-platform systems and shared application foundations
- Deep understanding of software architecture, modular systems, scalability, and performance optimization
- Experience working with CI/CD pipelines, automation tooling, and modern developer workflows
- Strong engineering mindset focused on maintainability, reliability, testability, and fast iteration
- Comfortable working in AI-assisted or agentic development environments and adopting new AI-driven workflows quickly
- Experience with backend-driven UI architectures
Nice to have:
- Experience building white-label mobile applications or multi-brand ecosystems
- Experience designing and implementing BFF (Backend for Frontend) services
- Hands-on backend development experience with TypeScript (Node.js)
- Experience building internal developer platforms, shared tooling, or scalable platform capabilities
- Familiarity with OWASP mobile security best practices
- Experience with engineering methodologies focused on rapid iteration and high developer productivity (Trunk Based Development, CI/CD mindset, TDD, BDD, XP, etc.)
- Strong experience with native mobile integrations and media/video playback technologies
- Hands-on experience with HLS streaming and native video player integrations on iOS and Android (AVPlayer, ExoPlayer, Chromecast, AirPlay)
Candidate journey: ⭕️ Recruiter call --> ⭕️ Meet a Hiring Manager--> ⭕️ Skills assessment-->Live coding
Check out some of our products
Muscle Booster — https://musclebooster.fitness/
Yoga-Go — https://yoga-go.io/
WalkFit - http://walkfit.pro
Компания Тензор приглашает Python-разработчика с обязательным знанием C++ и SQL для работы над решениями в области электронного документооборота и интеграций.
Требования:
— знание Python (3.11), обязательное знание C++ (C++20), SQL.
Обязанности:
— Разработка решений по разбору и обработке файлов электронной отчетности, интеграции Desktop-приложений и облачных сервисов в сфере ЭО/ЭДО;
— Поддержка и развитие высоконагруженных приложений документооборота;
— Разработка ядра бэкенд-платформы и сервисов на её основе;
— Расширение возможностей кроссплатформенного desktop-приложения (WebRTC/SIP, взаимодействие с уведомлениями, обработка задач и документов).
Стек:
C++20, Python 3.11, Node.js, PostgreSQL, SQLite, Redis, KeyDB, Clickhouse, Elastic Search, RabbitMQ, Kafka.
Условия и бонусы:
— стабильная зарплата + бонусы и премии,
— гибкий график,
— офис, удаленка или гибрид по выбору,
— ДМС со стоматологией,
— компенсация спорта,
— обучение за счёт компании,
— карьерный рост,
— корпоративные мероприятия.
Location: Remote - US
About the Job:
LaunchDarkly is seeking a skilled Full-Stack Engineer to join our Experimentation team! You’ll collaborate closely with a cross-functional team of backend, frontend, and full-stack engineers, along with product managers, data scientists, and designers, to help build an experimentation platform that balances power and accessibility. In this role, you’ll contribute to the design, development, and maintenance of scalable, performant services using Go and RESTful APIs, and user experiences built with React and TypeScript. You’ll have opportunities to take ownership of projects, grow your technical expertise, and help improve the quality and reliability of our systems. We’re focused on building a best-in-class experimentation platform that enables customers to run impactful, data-driven experiments with ease and confidence, and we’re actively growing the team to deliver on this vision.
We are committed to delivering a leading experimentation platform that empowers our customers to run tests and data-driven experiments seamlessly and at scale. We have a robust product roadmap, and we are actively expanding our teams to execute on it.
Responsibilities:
Contribute to the design, development, and maintenance of scalable and performant solutions for experimentation and data-driven products, with attention to usability and maintainability.
Collaborate with senior engineers on architectural decisions that impact system scalability and performance.
Lead limited scope features from definition to deployment
Help identify and troubleshoot performance issues and participate in efforts to optimize service reliability.
Work closely with product managers, engineers, data scientists, and designers to implement new features and iterate on existing functionality.
Participate in code reviews to support code quality and share constructive feedback with teammates.
Write clean, maintainable, and well-tested code that enhances the reusability and readability of team systems.
Contribute to the team’s efforts to improve observability, monitoring, and operational excellence.
Help investigate and resolve production issues, occasionally partnering with customer support or other teams as needed.
Collaborate across functions to align on priorities, surface blockers, and improve team workflows.
Learn from and support more senior engineers, and contribute to a culture of growth, inclusion, and continuous improvement.
Stay current with industry trends related to software development, experimentation, and backend technologies.
Demonstrate curiosity, creative thinking, and a proactive mindset in problem-solving.
Qualifications:
5+ years of hands-on experience building full stack web applications. Familiarity with Typescript, React, Node, and Go is preferred but not required.
Solid grasp of software engineering principles, design patterns, and coding best practices.
Exposure to building or maintaining scalable, production-grade systems.
Familiarity with observability practices and tools (e.g., logging, metrics, monitoring).
Experience working with cloud platforms (AWS, GCP, or Azure) is a plus.
Strong collaboration and communication skills with a team-oriented mindset.
Comfortable working in Agile development environments.
Experience with CI/CD practices and tools.
Passion for writing high-quality code and continuously improving engineering practices.
A self-motivated approach and willingness to take initiative.
Ability to thrive in a fast-paced, evolving environment.
Prior experience working with or contributing to distributed teams is a plus.
Pay:
Target pay ranges based on Geographic Zones* for Level 3:
Zone 1:
San Francisco/Bay Area or NYC Metropolitan Area, Boston, Seattle
- $171,200 - $235,400**
Zone 2:
Irvine, LA, Monterey, Santa Barbara, Santa Rosa, Austin, Portland, Philadelphia, Chicago -
$154,100 - $211,860**
Zone 3:
All other US locations -
$
145,500 - $200,090
**
LaunchDarkly operates from a place of high trust and transparency; we are happy to state the pay range for our open roles to best align with your needs. Exact compensation may vary based on skills, experience, and location.
*Within the United States, our geographic pay zones are defined by counties surrounding major metropolitan areas.
**Restricted Stock Units (RSUs), health, vision, and dental insurance, and mental health benefits in addition to salary.
About LaunchDarkly:
Modern software delivery was supposed to be the foundation for a thriving digital business but reality has proven otherwise. Slow, inefficient development cycles, costly outages, and fragmented customer experiences are preventing developers from building their best software. The LaunchDarkly platform helps developers innovate on new features faster while protecting them with a safety valve to instantly rewind when things go wrong. Developers can target product experiences to any customer segment and maximize the business impact of every feature. And by gradually rolling out new application components, they escape nightmare "big-bang" technology migrations.
The LaunchDarkly platform was built to guide engineers to the next frontier of DevOps by:
Improving the velocity and stability of software releases, without the fear of end customer outages
Delivering targeted experiences by easily personalizing features to customer cohorts
Maximizing the business impact of every feature through the ability to experiment and optimize
Coordinating the release and optimization of software to provide consistent experiences across mobile platforms and device types
Improving the effectiveness and productivity of engineering teams, by providing insights into engineering cadence and stability
At LaunchDarkly, we believe in the power of teams. We're building a team that is humble, open, collaborative, respectful and kind. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity, sexual orientation, age, marital status, veteran status, or disability status. LD invites any applicant to review our written Affirmative Action Plan. To do so, contact People Ops at
hr@launchdarkly.com
.
Do you need a disability accommodation?
Fill out this
accommodations request form
and someone from our People Operations team will contact you for assistance.
Your safety matters to us.
To protect yourself from potential scams, LaunchDarkly recruiters will only contact you from @
launchdarkly.com
email addresses or via LinkedIn from "Verified Recruiter" accounts. Be cautious of emails from other domains. Legitimate LaunchDarkly recruiters will never ask for money, fees, or banking information before making a job offer. LaunchDarkly will never make a job offer without conducting a formal interview process. Our interview process does not involve asking detailed questions by email. If you are ever unsure about a communication that you receive, don't click any links—visit
Careers | LaunchDarkly
directly for confirmed job openings and links to apply.
Please notify us of any fraudulent representation by sending an email to
careers@launchdarkly.com
.
Location: Anywhere in France, Belgium, Spain
HEALTH CAN’T WAIT.
Not for symptoms to get worse. Not for a six‑month appointment. Not for a system to catch up. But that’s exactly how healthcare works today. You wait, until you can’t.
Alan exists to end the wait.
Health is a universal right, and we believe this right can only become real when it’s coupled with prevention. We need to stop treating health as something we repair and start treating it as something we build, every day. It’s not solely a question of willpower. It’s the healthcare system itself that needs to work for everyone, in a sustainable way.
So we are building the new standard in prevention insurance. Alan is the first company that integrates insurance, prevention, and care into a single, acclaimed user experience.
We are on an incredible journey to build a global leading company, with a unique culture https://alan.com/en/careers. We already partner with 40K+ companies of all sizes, serving more than 1M+ members, and have reached €800M+ in ARR.
Prevention as the new norm. That's what we're building with our team of 1000+ people. If it speaks to you: we're hiring across France, Spain, Belgium, and Canada. And beyond.
⭐ BUILD THE AI-NATIVE COMPANY, FOR REAL
Alan has spent 10 years developing a distinctive way of working: radical transparency, written culture, distributed decision-making, no managers, no meetings by default. This wasn't just philosophy. It was a deliberate architectural choice, and it made Alan one of the most productive companies in European tech.
Now, agentic AI empowers us to make it much more personalized. The principles that made Alan productive become the foundation for a much more ambitious journey: a company where AI agents handle organizational complexity, surface the right context instantly, and let every person focus on the work that matters.
As a Software Engineer on this team, you will:
- Build the AI-powered internal platform that every Alaner uses daily to navigate the company, find context, and take action.
- Design and ship intelligent agents that automate real organizational workflows: onboarding, knowledge retrieval, performance alignment, decision support.
- Push LLMs into production for structured reasoning, agentic task execution, and deep integration with internal tools.
- Define the primitives and abstractions of AI-native work, the patterns that scale across every team and every country Alan operates in.
- Replace generic tools (HRIS, performance reviews, IAM) with opinionated, Alan-native software that compounds with our culture.
- Build and scale our Identity & Access Management (IAM), Privileged Access Management (PAM), and user lifecycle across 25+ systems.
- Collaborate with product, design, security and leadership to turn Alan's cultural principles into software that amplifies them.
WHY THIS ROLE IS SPECIAL
- Alan's written, transparent, async culture generates an extraordinary volume of structured organizational knowledge. Most companies can't feed AI agents with high-quality internal data. Alan already can.
- The team is building a full AI-native operational layer from scratch, not adding copilots to legacy tools.
- Every Alaner uses what you ship, every day. The feedback loop between building and impact is immediate.
- The work sits at the frontier of applied AI: agents, retrieval-augmented generation, structured outputs, tool use, human-in-the-loop design.
- The ambition goes beyond Alan. The patterns you build here could define how high-performance companies operate in the AI era.
🛠 YOUR PLAYGROUND
- Stack: Python/Flask, React, PostgreSQL, plus deep integration with LLM APIs and internal AI infrastructure.
- What you'll do: design and ship AI-native tools that power how Alan works. automated workflows, organizational navigation, agentic assistants.
- Impact: your work shapes the daily experience of every Alaner and builds the playbook for the AI-native company.
👥 WHO WE'RE LOOKING FOR
- Software engineers with +5 years of experience, ideally with backend or full-stack experience.
- Genuinely excited about AI and eager to explore what LLMs, agents, and retrieval systems can do inside a real product.
- Comfortable building in fast-moving territory where the right abstractions don't exist yet.
- Well-versed in OOP languages (Python, Java, C#) and modern web technologies.
- Fluent in English (French is a plus but not required).
- Curious, self-starting, humble, collaborative, and eager to grow.
🙌 PERKS & BENEFITS
- Fair rewards & equity packages.
- Flexible office & remote options.
- Top-tier equipment: MacBook Pro, monitor, noise-canceling headphones.
- Flexible vacation & hours.
- Comprehensive healthcare for you, children, and partners.
- Transport support and coaching for personal growth.
- Training budget for conferences, courses, books.
- Extended parental leave for all parents.
🔄 RECRUITMENT NOTE
🌟 We hire people, not roles. Don't worry if you don't check every box. High potential and curiosity matter most. We may even suggest another team if we see a better fit.
🔖 Learn more About Alan https://alan.com/about and on our Career pages https://alan.com/careers, Medium https://medium.com/alan, blog https://blog.alan.com/ and Glassdoor page https://www.glassdoor.com/Overview/Working-at-Alan-EI_IE2297653.htm.
#LI-DNP
Location: Paris
Workplace: Hybrid
HEALTH CAN’T WAIT.
Not for symptoms to get worse. Not for a six‑month appointment. Not for a system to catch up. But that’s exactly how healthcare works today. You wait, until you can’t.
Alan exists to end the wait.
Health is a universal right, and we believe this right can only become real when it’s coupled with prevention. We need to stop treating health as something we repair and start treating it as something we build, every day. It’s not solely a question of willpower. It’s the healthcare system itself that needs to work for everyone, in a sustainable way.
So we are building the new standard in prevention insurance. Alan is the first company that integrates insurance, prevention, and care into a single, acclaimed user experience.
We are on an incredible journey to build a global leading company, with a unique culture https://alan.com/en/careers. We already partner with 40K+ companies of all sizes, serving more than 1M+ members, and have reached €800M+ in ARR.
Prevention as the new norm. That's what we're building with our team of 1000+ people. If it speaks to you: we're hiring across France, Spain, Belgium, and Canada. And beyond.
⭐️ THE ENGINEERING TEAM ⭐️
In our engineering team, we build the infrastructure, interfaces, and applications to provide first-class service to our members, health professionals, and even ourselves!
Being an engineer at Alan means joining a team of talented, committed and passionate engineers, with a lot of product interaction.
We move fast, with a lot of ownership, and are proud to tackle big problems!
Our process is very simple: those who make product decisions are the same ones who build them.
Our stack is Python/Flask, React, React Native, PostgreSQL.
Want to know more? Read this article https://blog.alan.com/tech-et-produit/engineering-organisation-at-alan if you want to discover how life as an Engineer at Alan and this article https://medium.com/alan/engineering-career-path-at-alan-e5de5c2e740c on our Engineering career path.
⭐️ IS IT YOU WE’RE LOOKING FOR? ⭐️
Please note that for this internship, you need to be based in Paris, France, and currently enrolled in your last year of a Master's degree in a university.
You would be a great fit at Alan if most of this sounds like you:
- You are looking for your 6-month end-of-studies internship and want to start in H1 2027
- You have prior internship or side-projects coding experience, and have already deployed frontend and backend code to production for real users
- You are willing to work in Python/JavaScript (but you don't need to have experience with those 2 languages!)
- You are passionate about building products
- You are self-starting and humble
- You are collaborative, enthusiastic about teamwork and learning
- Fluent in English (no need to speak French!)
But above all, we are looking for high potential and curiosity: make sure to show us this when you apply! Everything else is a bonus.
If you want to learn how engineers can grow at Alan, take a look at our Engineering career path https://medium.com/alan/engineering-career-path-at-alan-e5de5c2e740c.
For this internship, we are hiring at the A2 level https://alan.com/en/careers/a/salary-equity of our salary grid.
🎯 IMPORTANT NOTE: WE HIRE PEOPLE, NOT ROLES.
If you're excited about this opportunity but don't check every box, we'd love to hear from you. Everyone, no matter how underrepresented, should feel free to apply, as it can only bring learnings or success.
If you identify yourself as a woman: Did you know that research shows women often apply only when meeting 100% of requirements?
Remember, this is just a guide, not a checklist. We'll be thrilled to receive your application!
🔖 Check out our About Alan and Career pages, as well as our Medium, blog and Glassdoor pages for more info.
YOU WANT TO KNOW MORE ABOUT ALAN?
- 🙌 Perks & Benefits https://alan.com/en/careers/a/salary-equity: Alaners are provided with a stimulating environment and perks ensuring they are happy, efficient and spend only high-quality time with co-workers.
- 🤘 A strong culture https://alan.com/en/about/a/leadership-principles: People joining Alan are often surprised and delighted by our innovative working method. We have a set of cultural values that guide our approach to work
#LI-DNP
Location: Montreal; Canada
Workplace: remote
ABOUT YOU
We are looking for a Full-Stack Engineer who is curious, detail-oriented, and collaborative to join our Engineering team. The best candidate will be someone who enjoys working in a fast-paced, team-oriented environment and is eager to contribute to end-to-end solutions, learn scalable architecture patterns, and help improve performance and reliability across both frontend and backend systems.
Proficiency in React and modern frontend development practices, along with backend experience in Go (or a similar language) is essential, along with exposure to microservices architecture and containerized environments using Docker and Kubernetes. The ability to contribute to features from concept to production, assist in troubleshooting system issues, and participate in performance optimization efforts will be key to your success in this role.
If you're passionate about building full-stack experiences that power impactful products and are excited to grow your skills within gaming, payment, and digital commerce ecosystems, we would love to hear from you!
ABOUT US
Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit xsolla.com.
Responsibilities
Contribute to the development and maintenance of full-stack applications that power core products and platforms.
Build responsive, performant user interfaces using React.
Develop and maintain backend services using Go and event-driven architectures.
Work with microservices in containerized environments using Docker and Kubernetes.
Participate in architecture discussions and contribute ideas that improve performance and maintainability.
Collaborate with engineers, product managers, designers, and QA to deliver features end-to-end.
Monitor and debug your code in production, contributing to application reliability and performance improvements.
Write automated tests and follow CI/CD best practices to ensure quality deployments.
Participate in code reviews, technical discussions, and knowledge sharing across teams.
Join on-call rotation to support production systems and assist in incident response.
Qualifications & Skills
2–4 years of full-stack development experience.
Proficiency in React and modern frontend development practices.
Backend experience in Go or a similar language.
Understanding of microservices architecture and event-based communication patterns.
Exposure to container orchestration and cloud infrastructure (e.g., Kubernetes, Docker).
Basic understanding of observability, monitoring, and performance optimization.
Ability to assist in troubleshooting production issues and analyzing system behavior.
Nice to Have
Experience with React Native for mobile development.
Interest or background in gaming, payments, or commerce systems.
Exposure to adtech or offer monetization platforms.
Familiarity with Kafka or equivalent streaming platforms.
Familiarity with Redis or other in-memory data stores.
Experience with cloud platforms (e.g., AWS, GCP, or Azure).
Exposure to ClickHouse, Postgres, or other analytical/OLAP/OLTP databases.
Any experience working on internal platforms or developer-facing tools.
Benefits:We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.
Equal Employment Opportunity Statement:
Xsolla is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other characteristic protected by law.
We consider qualified applicants with criminal histories in accordance with the Fair Chance Act.
Criminal History Consideration:
For the Lead Software Engineer (Mobile Native), we will conduct a background check that may include the following.
Criminal history check.
Employment verification.
Education verification.
Relevance to job Responsibilities:
The background check is relevant to this position because of the following role responsibilities:
Accessing confidential company data
Ensuring compliance with regulatory requirements
Handling sensitive financial information/ managing budgets /accessing funds
Rights Under the Fair Chance Act:
Applicants are encouraged to inquire about their rights under the Fair Chance Act. If you have questions regarding our hiring practices, please contact careers@xsolla.com
Location: United Kingdom
About The Role
At thinkcell, we are continuously improving how professionals create business presentations by introducing smarter automation and assistance features into our product. In this role, you will help turn new ideas and early AI-driven concepts into reliable features used by more than 1.3 million users worldwide.
You will build production-ready systems that connect modern backend services with intuitive user interfaces. In this role, you will work closely with both C++ engineers developing the core product and AI engineers exploring new automation capabilities, helping bring new functionality from concept into everyday product usage.
This role is ideal for engineers who enjoy building clean, scalable systems, care deeply about code quality, and are motivated by shipping impactful features in a highly collaborative engineering environment.
What you will do
Build and maintain production-ready backend and full-stack features using TypeScript
Integrate AI-powered functionality into the thinkcell product, such as text editing assistance and automated slide creation
Work closely with
C++ engineers and AI engineers
to translate ideas and prototypes into robust product features
Contribute to a strong engineering culture with rigorous code reviews and high standards for code quality
You will be great for this position if you have
A degree in computer science, mathematics, physics, or a similar technical field
Relevant experience as a backend or full-stack engineer
Strong experience with TypeScript and Node.js in production environments
Curiosity about AI technologies and interest in integrating them into real-world products
Experience with Python or C++ is a plus
What We Offer
Brilliant Team: Work with international colleagues with strong academic and professional experience
Work–life balance: Flexible working hours and an environment that respects your time and focus.
Stable Environment: Join a market leader with a reliable product.
Direct Exposure to C-level
Competitive salary & Relocation Support to Berlin
Our Values
As part of our team, you will embody and help shape the following principles that define us:
Forward Thinking
: We embrace change and challenge the status quo.
Ownership
: We take pride in our work and learn from our mistakes.
Customer First
: We prioritize delivering lasting value.
Unified Team
: We foster collaboration, respect, and integrity.
Strive for Excellence
: We set ambitious goals and pursue quality.
We believe in a human hiring process, every application is personally reviewed.
Why is thinkcell the right place for you?
We empower over 1.3 million users across 35,000 companies, including top consulting firms and major global enterprises. With offices in Berlin, Munich, Denver, Boston, London, Tokyo, and Dubai, we’re a diverse team of over 240 people, committed to innovation and excellence.
thinkcell is more than a job – it's a chance to be part of an innovative, inclusive team that values collaboration and growth. We encourage applicants from all backgrounds to apply. Together, we can shape the future of productivity software. We can’t wait to see what you’ll bring to the team!
О ПРОЕКТЕ
Мы ищем технического лидера в динамичный крипто/DeFi проект. Роль предполагает полное владение техническим направлением продукта: от проектирования архитектуры с нуля до управления процессами разработки backend и frontend составляющих.
ОСНОВНЫЕ ЗАДАЧИ
— Проектирование и развитие масштабируемой архитектуры продукта.
— Разработка высокопроизводительного backend на Go.
— Интеграция серверной части с frontend-слоем (TypeScript / Next.js).
— Работа с блокчейн-инфраструктурой и интеграция DeFi-протоколов.
— Техническое лидерство: принятие ключевых решений и менторинг команды.
ТРЕБОВАНИЯ К КАНДИДАТУ
— Глубокий production-опыт разработки на Go (Golang).
— Уверенное владение TypeScript и современным frontend-стеком (React / Next.js).
— Практический опыт реализации проектов в сфере Web3 / Crypto / DeFi.
— Опыт проектирования высоконагруженных и отказоустойчивых систем.
— Навыки управления командой разработки или опыт в роли Tech Lead.
УСЛОВИЯ РАБОТЫ
— Полностью удаленный формат работы без географических привязок.
— Минимум бюрократии и максимально гибкие внутренние процессы.
— Возможность прямого влияния на продукт и архитектурные решения.
— Конкурентная заработная плата с фиксацией в валюте.
Задачи:
— Разработка новых функций и продуктов на TypeScript.
— Участие в обсуждениях и принятии технических решений.
— Участие в планировании и оценке сроков.
— Написание unit-тестов с использованием TypeScript и Jest.
— Исправление багов, зарегистрированных в Jira.
— Хорошее понимание внутренних и сторонних инструментов.
— Проактивное улучшение внутренних процессов, инструментов и библиотек.
— Участие в процессе релизов и деплоя.
— Сотрудничество с младшими разработчиками и помощь в их развитии.
— Повышение собственного уровня и развитие навыков.
Требования:
— Более 6 лет опыта разработки, предпочтительно с TypeScript и Node.js.
— Продвинутые навыки фронтенд-разработки с использованием React или аналогичных технологий.
— Значительный опыт работы с Git и системами контроля версий.
— Глубокое понимание систем сборки JavaScript и пайплайнов разработки.
— Практический опыт работы с фреймворками тестирования, такими как Jest или Mocha.
— Хорошее понимание Redux и Immer или аналогичных библиотек неизменяемости.
— Хорошие знания SSH.
Преимущества:
— Опыт работы с C++.
— Понимание CI/CD пайплайнов.
— Хорошее знание Docker и Linux-систем.
— Опыт работы с WebSockets и долгоживущими приложениями.
— Знакомство с AWS.
— Интерес к автоматизации и разработке библиотек.
Условия:
— ДМС.
— Оплачиваемый ежегодный отпуск до 25 дней.
— Бесплатное членство в спортивном клубе.
— Возможность получения ВНЖ/ПМЖ в Болгарии.
Location: Canada; Serbia
Workplace: remote
ABOUT YOU
We are looking for a Senior Software Engineer (Full-Stack) who is architecturally strong, quality-driven, and highly collaborative to join our Engineering team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to lead full-stack architecture decisions, build scalable distributed systems, and drive shared platform strategies across backend, frontend, and cloud ecosystems.
Strong expertise in Go and React (JavaScript/TypeScript), along with deep knowledge of cloud-native architecture patterns and event-driven system design, is essential, along with experience in building and delivering commercial applications from concept to launch. The ability to design scalable service architectures, implement robust testing strategies (including integration and E2E), optimize performance across the full stack, and mentor other developers while collaborating across cross-functional teams will be key to your success in this role.
If you're passionate about building high-quality, resilient systems that scale and love designing seamless platform experiences powered by event-driven workflows, cloud infrastructure, and modern web interfaces that drive gaming, virtual currency, and digital commerce experiences, we would love to hear from you!
ABOUT US
Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.
For more information, visit xsolla.com.
Qualifications & Skills:
5+ years of professional software engineering experience, with a strong focus on full-stack development using Go and React (JavaScript/TypeScript)
Deep understanding of backend architecture patterns including microservices, event-driven architecture, and domain-driven design
Hands-on experience designing and building RESTful APIs and/or gRPC services in Go, with a focus on performance, reliability, and maintainability
Strong proficiency in React, including modern patterns such as hooks, context, and state management libraries (Redux, Zustand, or similar)
Proven experience with cloud platforms (AWS, GCP, or Azure), including containerization (Docker, Kubernetes) and infrastructure-as-code (Terraform, Pulumi, or similar)
Solid experience with message brokers and event streaming platforms such as Kafka, RabbitMQ, NATS, or similar technologies
Strong knowledge of relational and non-relational databases (PostgreSQL, MySQL, Redis, MongoDB, or DynamoDB)
Experience implementing CI/CD pipelines and automated testing strategies, including unit, integration, and end-to-end testing
Familiarity with observability and monitoring tools (Prometheus, Grafana, Datadog, or similar)
Strong understanding of distributed systems concepts such as eventual consistency, idempotency, fault tolerance, and retry strategies
Experience mentoring junior and mid-level engineers and contributing to architectural decision-making processes
Excellent communication and collaboration skills, with the ability to work effectively across cross-functional teams including product, design, and DevOps
A proactive, ownership-driven mindset with a passion for writing clean, well-documented, and testable code
Nice to Have:
Experience with serverless architectures (AWS Lambda, Cloud Functions)
Familiarity with GraphQL
Exposure to WebSocket or real-time communication protocols
Experience in gaming, virtual currency, digital commerce, or fintech domains
Contributions to open-source projects
Benefits:We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.
Equal Employment Opportunity Statement:
Xsolla is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other characteristic protected by law.
We consider qualified applicants with criminal histories in accordance with the Fair Chance Act.
Criminal History Consideration:
For the Tech Lead, we will conduct a background check that may include the following.
Criminal history check.
Employment verification.
Education verification.
Relevance to job Responsibilities:
The background check is relevant to this position because of the following role responsibilities:
Accessing confidential company data
Ensuring compliance with regulatory requirements
Handling sensitive financial information/ managing budgets /accessing funds
Rights Under the Fair Chance Act:
Applicants are encouraged to inquire about their rights under the Fair Chance Act. If you have questions regarding our hiring practices, please contact careers@xsolla.com
Задачи:
— Разработка и поддержка фронтенд-части проектов с использованием React, Next.js, TypeScript.
— Разработка бэкенд-части проектов с использованием TypeScript и различных фреймворков (Express, Fastify, Hono, Nitro и т.д.).
— Работа с базами данных (PostgreSQL) и ORM/query-builder (Drizzle, Knex).
— Взаимодействие с инфраструктурой (Git, Docker, базовый Linux).
— Участие в проектировании архитектуры и развитии продукта.
Требования:
— Frontend: TypeScript, Next.js + React, Tailwind CSS, Zod.
— Backend: TypeScript, опыт с любым бэкенд-фреймворком на JS/TS (Express, Fastify, Hono, Nitro и т.д.).
— SQL, PostgreSQL, умение работать с ORM/query-builder (Drizzle, Knex и подобные), Redis, S3/MinIO.
— Инфраструктура и прочее: Git, Docker, базовый Linux.
— Понимание realtime-архитектуры (WebSocket, SSE).
— В идеале — опыт с платёжными системами и AI-инструментарием (AI SDK, OpenRouter), понимание того, как работают LLM-модели, какие бывают параметры генерации и т.д.
Условия:
— Работа над любым из двух проектов (TrueSpace или SWOIS).
— Прямое взаимодействие с основателями (горизонтальная структура управления).
— Полностью удалённая работа с гибким графиком.
— Долгосрочное сотрудничество.
— Возможность реально влиять на архитектуру и продукт.
Задачи:
— Поддержка и развитие функционала образовательной платформы
— Разработка архитектуры проекта
— Интеграция с внешними сервисами
— Рефакторинг
Требования:
— Опыт коммерческой разработки от 7 лет с Node.js, React.js, TypeScript, PostgreSQL
— Опыт работы в роли ведущего, Lead разработчика
— Уверенный опыт работы с базами данных, оптимизация сложных запросов
— Уверенные навыки работы с инфраструктурой Docker, Kubernetes
— Усидчивость, умение предлагать решения, многозадачность
Условия:
— Оформление по ТК РФ
— Удалённый формат работы на территории РФ с полной занятостью
— Возможность быстрого профессионального развития
Задачи:
— Разрабатывать и развивать core-функционал healthcare платформы
— Интегрировать AI-решения в продуктовые workflow
— Работать с автоматизацией процессов (calls, scheduling, summaries)
— Взаимодействовать напрямую с командой клиента (США)
— Участвовать в архитектурных решениях и улучшении процессов
Требования:
— Senior уровень: самостоятельность, ответственность, умение доводить задачи до результата
— Коммерческий опыт с Python + React
— Опыт работы с AI/ML/LLM (интеграции, API, automation)
— Английский: B2 (разговорный, обязательно)
— Умение работать в распределенной команде
— Сильные коммуникативные навыки
— Будет плюсом: опыт в health tech, понимание страховых/медицинских процессов, опыт работы с чувствительными данными (HIPAA и аналоги)
Условия:
— Удалённая работа с командой клиента из США
— Возможность работать с интересным и полезным продуктом
— Участие в архитектурных решениях
— Работа в high-security среде
О ПРОЕКТЕ — 10ARX
10arx — это AI-нативный терминал для Polymarket, Kalshi и DEX. Мы строим систему on-chain исполнения, которая работает 24/7 с реальным капиталом. Мы на ранней стадии: маленькая команда, бешеный темп и полная свобода в инженерных решениях.
Задачи:
— Строительство системы on-chain execution (транзакции, wallet management, gas optimization).
— Плотная работа с API prediction-платформ и децентрализованных бирж.
— Создание пайплайнов для сбора и нормализации рыночных данных в реальном времени.
— Реализация торговых алгоритмов и инфраструктуры для их бэктестинга на исторических данных.
— Разработка backend на Go и создание интерфейсов управления на React/TypeScript.
— Построение системы алертинга для систем, где «молча сломаться» — недопустимо.
Требования:
— 4+ года коммерческого опыта на Go (основной язык).
— Реальный опыт с Solidity, EVM и библиотеками (ethers.js / go-ethereum).
— Опыт построения систем, работающих с деньгами, понимание рисков и цены ошибки.
— Уверенный React + TypeScript для самостоятельной сборки UI.
— Ежедневное использование Cursor / Copilot / Claude для ускорения разработки.
— Готовность поднимать сервисы с пустого репозитория без детального ТЗ.
Условия:
— Полная ответственность за направление Trading Infrastructure.
— Прямое взаимодействие с CTO и фаундером, результат за дни, а не недели.
— Работа на стыке AI, высоконагруженного Go и блокчейн-инфраструктуры.
Задачи:
— Внесение вклада в развитие и поддержку международных проектов (школа актерского мастерства, база данных актеров, сайт кастингов)
— Работа с существующим кодом и улучшение пользовательских интерфейсов
— Влияние на архитектуру и процессы разработки
— Полное ведение задач от начала до завершения, без работы с отдельными частями
— Обращать внимание на детали и полноту реализации фич
— Двигаться вперёд при неполной информации и разумно выбирать компромиссы
Требования к кандидату:
— Опыт коммерческой разработки 3–6 лет
— Уверенное владение Vue.js, TypeScript, Node.js
— Опыт работы с Nuxt.js, Tailwind (будет плюсом)
— Английский язык на разговорном уровне (B2 и выше)
— Знание французского языка (будет плюсом)
— Наличие проектов или кода на GitHub (будет плюсом)
— Готовность выполнить небольшое тестовое задание
— Способность работать в условиях меняющейся среды, принимать решения и доводить задачи до результата без постоянного сопровождения
— Высокие навыки самоорганизации и готовность сразу погрузиться в работу
Условия работы:
— Удалённая работа
— Полная занятость
— Работа в небольшой международной команде с прямым взаимодействием и минимумом бюрократии
— Стабильные выплаты заработной платы раз в месяц
Задачи:
— Поддержка и развитие функционала платформы
— Разработка архитектуры проекта
— Интеграция с внешними сервисами
— Рефакторинг
Требования:
— Опыт коммерческой разработки от 7 лет (Node.js + React.js, TypeScript, PostgreSQL)
— Опыт работы в роли ведущего, Lead разработчика
— Уверенный опыт работы с базами данных, опыт оптимизации сложных запросов
— Уверенные навыки работы с инфраструктурой Docker, k8s
— Усидчивость, умение предлагать решения, многозадачность
Условия:
— Оклад 300-400К на руки в зависимости от квалификации
— Оформление по ТК РФ
— Удаленный формат на территории РФ с полной занятостью
— Возможность быстрого профессионального развития
УдалённоseniorГеография найма не уточнена
УдалённоRemote - US
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