Location: London
Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped QRT’s collaborative mindset which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors.
Join our global HR team in London as a Global Mobility and Immigration Coordinator. You will coordinate immigration, international assignments and relocations, working closely with HR colleagues and external providers to support our international workforce and deliver a seamless employee experience.
Your Future Role at QRT:
Coordinate UK and international immigration processes, including visa applications, renewals and expiry tracking.
Support secondments, transfers and relocations, including extensions and repatriations.
Liaise with immigration, tax and relocation providers to ensure timely service delivery.
Coordinate immigration, tax and relocation briefings for employees and candidates.
Maintain accurate employee records in Workday and mobility trackers, monitoring key milestones and deadlines.
Produce regular reports on case progress, assignments and mobility metrics.
Support compliance reviews and internal audits through accurate documentation and audit trails.
Respond to employee and HR queries, sharing guidance on mobility processes and policies.
Support the implementation of mobility policies, processes and programme improvements.
Your Present Skillset:
2+ years of experience in global mobility, immigration or HR operations, ideally within an international organisation.
Understanding of immigration regulations, compliance requirements and international assignment processes.
Strong organisational skills and attention to detail, with the ability to maintain accurate records and meet deadlines.
Clear communication skills.
Confidence using Excel, HR systems such as Workday and reporting tools; familiarity with ticketing systems and automation would be beneficial.
An analytical, service-focused approach to solving problems and improving processes, with discretion when handling sensitive information.
QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.
London; Liaise with immigration, tax and relocation providers to ensure timely service delivery; Coordinate immigration, tax and relocation briefings for employees and candidates
Location: London
Workplace: OnSite
Company Description
We’re http://checkout.comCheckout.com http://Checkout.com. You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day.
We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers.
Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale.
If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact.
With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started.
About the Role
Checkout.com http://Checkout.com is on a mission to transform the shopping experience for millions of consumers. As a senior individual contributor in mobile, you’ll help design and build the products we put in the hands of our end users.
Working hand-in-hand with our engineering team and product leaders, you’ll be crafting high-performance, user-friendly experiences, which operate at scale. Your role will extend beyond writing code - you’ll define architecture, lead technical discovery, and help us build the foundations that underpin our consumer offering.
What you’ll be doing
- Architecting and building the mobile experiences that are used directly by millions of consumers around the world.
- Owning feature development end-to-end, from discovery through to development, and monitoring through to maintenance.
- Working closely with backend teams to ensure the underlying systems we build are aligned to support our mobile product evolution.
- Championing best practices across the technical domain (testing, monitoring, release strategy, etc) to strengthen our foundations as we build our products.
- Mentoring peers, reviewing code, and contributing to the long-term technical vision for mobile development at Checkout.com http://Checkout.com.
Should have
- Solid background in mobile technologies (e.g. working with at least one of: native iOS, native Android, React Native)
- Proven track record building scalable and highly performant consumer experiences across the mobile domain
- Experience building and maintaining mobile apps or SDKs used by a large, active, user base.
- Passionate about developer experience - clear APIs, great docs, and reliability at scale.
- Excellent communication skills and experience collaborating with product, design, and backend peers.
Nice to have
- Previous experience in payments, fintech, or other security-sensitive domains.
- Exposure to PCI compliance, tokenization, or secure data handling.
Additional Information
Bring all of you to work
We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one.
Here, you’ll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity, and where your growth is in your hands.
We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a difference, you’ll be right at home here.
It’s important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable.
Life at Checkout.com http://Checkout.com
We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection.
Curious about what it’s like to be part of our team? Visit our Careers Page https://www.checkout.com/careers to learn more about our culture, open roles, and what drives us.
For a closer look at daily life at Checkout.com http://Checkout.com, follow us on LinkedIn https://www.linkedin.com/company/checkout/life/ and Instagram https://www.instagram.com/checkout_com/
Location: Canada (Remote)
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving teams (and their agents) unified visibility so they can see, understand, and act on all their disparate data, wherever it lives, and move at the speed of their ambitions. Customers, including Anthropic, Bloomberg, NVIDIA, Microsoft, and Salesforce, rely on Grafana Labs. We are a 100% remote company with team members across 40+ countries, backed by leading investors including Lightspeed Venture Partners, Sequoia Capital, GIC, Coatue, J.P. Morgan, CapitalG, and Lead Edge Capital. Learn more at
grafana.com
and follow us on
LinkedIn
and
X
.
We’re scaling fast and staying true to what makes us different: an open-source legacy, a global collaborative culture, and a passion for meaningful work. Our team thrives in an innovation-driven environment where transparency, autonomy, and trust fuel everything we do.
You may not meet every requirement, and that’s okay. If this role excites you, we’d love you to raise your hand for what could be a truly career-defining opportunity.
This is a full-time remote opportunity. We are considering candidates based in the US and Canada only, within the Eastern or Central time zones.
The Opportunity:
We are building Mobile Session Replay: a way for teams to see what users actually experienced in their iOS, Android, Flutter and React Native apps, inside Grafana Cloud.
Session Replay
connects frontend signals to session-level evidence, so engineers can investigate production issues faster and with more confidence. Web replay is already available publicly. Mobile replay extends the same story to native apps as part of our Digital Experience Monitoring (DEM) strategy.
We are starting with Android. A working prototype already exists, and you will help turn it into a product customers can trust. The plan is to push ahead from there: iOS next, then our Flutter, React Native and OpenTelemetry mobile SDKs, so customers get a consistent replay experience across platforms.
As a company we are remote-first and global, we embrace people of different experiences and backgrounds to build diverse teams where every person brings a new perspective to the software. We are looking for Staff Mobile Engineers who are passionate about working with data and providing seamless experiences for our customers to join our growing team!
What you'll be doing
As a Staff Mobile Engineer you will be the technical lead for mobile capture and replay, working across the device, the ingest path and the player. Specifically, you will:
Own the on-device replay library end to end,
starting with Android and extending to iOS.
Make privacy a default,
designing masking and consent controls so sensitive data never leaves the device.
Keep the overhead low and measure it on real devices,
protecting startup time, UI responsiveness, battery, memory, network use and disk, and profiling the impact of capture and masking while the app is actively being used. Give customers controls to trade fidelity against cost.
Build the integration layer
so customers do not copy demo glue code: adapters that tie replay to the active RUM session, sampling decisions and screen or navigation changes.
Work across the stack with Frontend and Mobile Observability teams
on the capture, upload and storage pipeline, session inactivity handling, the timeline player and the mobile sessions and replay experience in Frontend Observability. Evaluate the format and API tradeoffs rather than assuming the current prototype approach is final.
Define quality and compatibility:
automated tests, CI, device and OS coverage, and backwards-compatible upgrade paths for an SDK that customers cannot easily update.
Engage directly with customers:
join calls, gather structured feedback, and help teams instrument and adopt Mobile Session Replay
Mentor engineers
and help grow technical leadership in the team
We invest heavily in developer productivity. You can use modern AI coding assistants as part of your daily workflow (your choice of tools, within security guidelines), backed by a company-funded usage budget so you can iterate quickly without unnecessary friction. We encourage pragmatic AI-assisted development: faster prototyping, test generation, refactors, documentation, and incident follow-ups—always with strong code review and quality standards. You'll also have access to the latest frontier models from OpenAI, Anthropic, and Google.
Technologies you'll work with
Kotlin (primary, Android-first) and Swift (iOS)
Android media and graphics APIs (MediaCodec / H.264 encoding, view and window capture, Jetpack Compose and View-based UIs)
Faro (Flutter and React Native SDKs) and OpenTelemetry Android and iOS SDKs
Go (collector and ingest services) and TypeScript / React (player and Frontend Observability UI), as you partner across the stack
OLAP Database / Object storage (S3)
Kafka/Warpstream
Grafana ecosystem (Mimir, Loki, Tempo, etc.)
What makes you a great fit
You are comfortable working in a remote-first, globally distributed company. Communication is key, and you write and speak clearly in English
You are collaborative, friendly, kind and respectful. We operate by consensus: you can contribute, disagree constructively, and commit to the team's decision
You have deep native mobile engineering experience on Android (Kotlin/Java) or iOS (Swift/Obj-C). We are building Android first, so Android depth is a priority for the first hire. We are hiring across both platforms, and we do not expect you to be an expert in both, but you are willing to learn and contribute across platforms over time.
You have built or maintained mobile SDKs or platform libraries used by external developers, and you care about developer experience, API design and safe upgrade paths
You have worked on performance-sensitive code (startup time, memory, battery, network efficiency, background execution limits) and make pragmatic tradeoffs
You are comfortable with media and rendering pipelines on mobile: capturing screen content, working with frames or bitmaps, and encoding or handling video
You are comfortable owning a product from 0 to 1 in ambiguous problem spaces. You can break large problems into increments and work autonomously
You take a user-centered approach, and you build understanding of customers' context and goals so you build the right thing
You are thoughtful about privacy and security on user devices, including handling of sensitive data
You use AI tools as a natural part of your engineering workflow, for exploration, code review or reasoning through design tradeoffs, and you are thoughtful about where they help and where they don't
Bonus points for
Prior work on mobile session replay, screen recording, or sampling for mobile telemetry
Experience with video encoding (H.264, MediaCodec, AVFoundation) or on-device masking and redaction
Familiarity with rrweb or web session replay concepts
Experience with OpenTelemetry, crash reporting libraries or other observability open source
Experience with cross-platform frameworks (React Native, Flutter) or building native bindings and bridges
Experience with observability or debugging tools (Grafana, Datadog, New Relic, Sentry, etc.)
Familiarity with mobile privacy, consent and platform policy requirements
Experience with Go or TypeScript, since the work crosses into our ingest and player
In Canada, the OTE (On-Target Earnings)/Base compensation range for this role is $192,891 - $231,469 CAD. Actual compensation may vary based on level, experience, and skillset as assessed throughout the interview process. All of our roles include Restricted Stock Units (RSUs), giving every team member ownership in Grafana Labs' success. We believe in shared outcomes—RSUs help us stay aligned and invested as we scale globally.
*Compensation ranges are country specific. If you are applying for this role from a different location than listed above, your recruiter will discuss your specific market’s defined pay range & benefits at the beginning of the process.
Why You’ll Thrive at Grafana Labs:
100% Remote, Global Culture -
As a remote-only company, we bring together talent from around the world, united by a culture of collaboration and shared purpose.
Scaling Organization
– Tackle meaningful work in a high-growth, ever-evolving environment.
Transparent Communication
– Expect open decision-making and regular company-wide updates.
Innovation-Driven
– Autonomy and support to ship great work and try new things.
Open Source Roots
– Built on community-driven values that shape how we work.
Empowered Teams
– High trust, low ego culture that values outcomes over optics.
Career Growth Pathways
– Defined opportunities to grow and develop your career.
Approachable Leadership
– Transparent execs who are involved, visible, and human.
Passionate People
– Join a team of smart, supportive folks who care deeply about what they do.
In-Person onboarding
- We want you to thrive from day 1 with your fellow new ‘Grafanistas’ to learn all about what we do and how we do it.
Balance is Key
- We operate a global annual leave policy of 30 days per annum. 3 days of your annual leave entitlement are reserved for Grafana Shutdown Days to allow the team to really disconnect.
*We will comply with local legislation where applicable.
Equal Opportunity Employer:
Grafana Labs is an equal opportunities employer. We welcome applications from everyone regardless of race, colour, nationality, origin, caste, sex, gender reassignment identity or expression, sexual orientation, age, religion or belief, disability, veteran status, genetic information, pregnancy, maternity, marital, family or carer status, or any other characteristic which is protected by local law. We believe that equality and diversity build a strong organisation, and we work hard to ensure that is the foundation of our organisation as we grow.
Grafana Labs may utilize AI tools in its recruitment process to assist in matching information provided in CVs to job postings. The recruitment team will continue to review inbound CVs manually to identify alignment with current openings.
#LI-Remote
For information about how your personal data is used once you’ve applied to a job, check out our
privacy policy
.
Location: United States (Remote)
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving teams (and their agents) unified visibility so they can see, understand, and act on all their disparate data, wherever it lives, and move at the speed of their ambitions. Customers, including Anthropic, Bloomberg, NVIDIA, Microsoft, and Salesforce, rely on Grafana Labs. We are a 100% remote company with team members across 40+ countries, backed by leading investors including Lightspeed Venture Partners, Sequoia Capital, GIC, Coatue, J.P. Morgan, CapitalG, and Lead Edge Capital. Learn more at
grafana.com
and follow us on
LinkedIn
and
X
.
We’re scaling fast and staying true to what makes us different: an open-source legacy, a global collaborative culture, and a passion for meaningful work. Our team thrives in an innovation-driven environment where transparency, autonomy, and trust fuel everything we do.
You may not meet every requirement, and that’s okay. If this role excites you, we’d love you to raise your hand for what could be a truly career-defining opportunity.
This is a full-time remote opportunity. We are considering candidates based in the US and Canada only, within the Eastern or Central time zones.
The Opportunity:
We are building Mobile Session Replay: a way for teams to see what users actually experienced in their iOS, Android, Flutter and React Native apps, inside Grafana Cloud.
Session Replay
connects frontend signals to session-level evidence, so engineers can investigate production issues faster and with more confidence. Web replay is already available publicly. Mobile replay extends the same story to native apps as part of our Digital Experience Monitoring (DEM) strategy.
We are starting with Android. A working prototype already exists, and you will help turn it into a product customers can trust. The plan is to push ahead from there: iOS next, then our Flutter, React Native and OpenTelemetry mobile SDKs, so customers get a consistent replay experience across platforms.
As a company we are remote-first and global, we embrace people of different experiences and backgrounds to build diverse teams where every person brings a new perspective to the software. We are looking for Staff Mobile Engineers who are passionate about working with data and providing seamless experiences for our customers to join our growing team!
What you'll be doing
As a Staff Mobile Engineer you will be the technical lead for mobile capture and replay, working across the device, the ingest path and the player. Specifically, you will:
Own the on-device replay library end to end,
starting with Android and extending to iOS.
Make privacy a default,
designing masking and consent controls so sensitive data never leaves the device.
Keep the overhead low and measure it on real devices,
protecting startup time, UI responsiveness, battery, memory, network use and disk, and profiling the impact of capture and masking while the app is actively being used. Give customers controls to trade fidelity against cost.
Build the integration layer
so customers do not copy demo glue code: adapters that tie replay to the active RUM session, sampling decisions and screen or navigation changes.
Work across the stack with Frontend and Mobile Observability teams
on the capture, upload and storage pipeline, session inactivity handling, the timeline player and the mobile sessions and replay experience in Frontend Observability. Evaluate the format and API tradeoffs rather than assuming the current prototype approach is final.
Define quality and compatibility:
automated tests, CI, device and OS coverage, and backwards-compatible upgrade paths for an SDK that customers cannot easily update.
Engage directly with customers:
join calls, gather structured feedback, and help teams instrument and adopt Mobile Session Replay
Mentor engineers
and help grow technical leadership in the team
We invest heavily in developer productivity. You can use modern AI coding assistants as part of your daily workflow (your choice of tools, within security guidelines), backed by a company-funded usage budget so you can iterate quickly without unnecessary friction. We encourage pragmatic AI-assisted development: faster prototyping, test generation, refactors, documentation, and incident follow-ups—always with strong code review and quality standards. You'll also have access to the latest frontier models from OpenAI, Anthropic, and Google.
Technologies you'll work with
Kotlin (primary, Android-first) and Swift (iOS)
Android media and graphics APIs (MediaCodec / H.264 encoding, view and window capture, Jetpack Compose and View-based UIs)
Faro (Flutter and React Native SDKs) and OpenTelemetry Android and iOS SDKs
Go (collector and ingest services) and TypeScript / React (player and Frontend Observability UI), as you partner across the stack
OLAP Database / Object storage (S3)
Kafka/Warpstream
Grafana ecosystem (Mimir, Loki, Tempo, etc.)
What makes you a great fit
You are comfortable working in a remote-first, globally distributed company. Communication is key, and you write and speak clearly in English
You are collaborative, friendly, kind and respectful. We operate by consensus: you can contribute, disagree constructively, and commit to the team's decision
You have deep native mobile engineering experience on Android (Kotlin/Java) or iOS (Swift/Obj-C). We are building Android first, so Android depth is a priority for the first hire. We are hiring across both platforms, and we do not expect you to be an expert in both, but you are willing to learn and contribute across platforms over time.
You have built or maintained mobile SDKs or platform libraries used by external developers, and you care about developer experience, API design and safe upgrade paths
You have worked on performance-sensitive code (startup time, memory, battery, network efficiency, background execution limits) and make pragmatic tradeoffs
You are comfortable with media and rendering pipelines on mobile: capturing screen content, working with frames or bitmaps, and encoding or handling video
You are comfortable owning a product from 0 to 1 in ambiguous problem spaces. You can break large problems into increments and work autonomously
You take a user-centered approach, and you build understanding of customers' context and goals so you build the right thing
You are thoughtful about privacy and security on user devices, including handling of sensitive data
You use AI tools as a natural part of your engineering workflow, for exploration, code review or reasoning through design tradeoffs, and you are thoughtful about where they help and where they don't
Bonus points for
Prior work on mobile session replay, screen recording, or sampling for mobile telemetry
Experience with video encoding (H.264, MediaCodec, AVFoundation) or on-device masking and redaction
Familiarity with rrweb or web session replay concepts
Experience with OpenTelemetry, crash reporting libraries or other observability open source
Experience with cross-platform frameworks (React Native, Flutter) or building native bindings and bridges
Experience with observability or debugging tools (Grafana, Datadog, New Relic, Sentry, etc.)
Familiarity with mobile privacy, consent and platform policy requirements
Experience with Go or TypeScript, since the work crosses into our ingest and player
In US, the OTE (On-Target Earnings)/Base compensation range for this role is $189,374 - $227,249 USD. Actual compensation may vary based on level, experience, and skillset as assessed throughout the interview process. All of our roles include Restricted Stock Units (RSUs), giving every team member ownership in Grafana Labs' success. We believe in shared outcomes—RSUs help us stay aligned and invested as we scale globally.
*Compensation ranges are country specific. If you are applying for this role from a different location than listed above, your recruiter will discuss your specific market’s defined pay range & benefits at the beginning of the process.
Why You’ll Thrive at Grafana Labs:
100% Remote, Global Culture -
As a remote-only company, we bring together talent from around the world, united by a culture of collaboration and shared purpose.
Scaling Organization
– Tackle meaningful work in a high-growth, ever-evolving environment.
Transparent Communication
– Expect open decision-making and regular company-wide updates.
Innovation-Driven
– Autonomy and support to ship great work and try new things.
Open Source Roots
– Built on community-driven values that shape how we work.
Empowered Teams
– High trust, low ego culture that values outcomes over optics.
Career Growth Pathways
– Defined opportunities to grow and develop your career.
Approachable Leadership
– Transparent execs who are involved, visible, and human.
Passionate People
– Join a team of smart, supportive folks who care deeply about what they do.
In-Person onboarding
- We want you to thrive from day 1 with your fellow new ‘Grafanistas’ to learn all about what we do and how we do it.
Balance is Key
- We operate a global annual leave policy of 30 days per annum. 3 days of your annual leave entitlement are reserved for Grafana Shutdown Days to allow the team to really disconnect.
*We will comply with local legislation where applicable.
Equal Opportunity Employer:
Grafana Labs is an equal opportunities employer. We welcome applications from everyone regardless of race, colour, nationality, origin, caste, sex, gender reassignment identity or expression, sexual orientation, age, religion or belief, disability, veteran status, genetic information, pregnancy, maternity, marital, family or carer status, or any other characteristic which is protected by local law. We believe that equality and diversity build a strong organisation, and we work hard to ensure that is the foundation of our organisation as we grow.
Grafana Labs may utilize AI tools in its recruitment process to assist in matching information provided in CVs to job postings. The recruitment team will continue to review inbound CVs manually to identify alignment with current openings.
#LI-Remote
For information about how your personal data is used once you’ve applied to a job, check out our
privacy policy
.
Location: Hong Kong SAR; Kuala Lumpur, Malaysia
About Us
Established in 2018, Bybit is one of the world’s leading cryptocurrency exchanges and digital financial platforms, serving over 80 million users across more than 200 countries and regions. Powered by world-class technology and a user-first mindset, Bybit delivers a seamless ecosystem across trading, payments, wealth management, custody, institutional services, and Web3 — connecting users to the future of digital finance.
Our core values define how we build. We listen, care and improve to create products and experiences that put users first. Backed by a global team of ambitious builders, problem-solvers, and innovators, we foster a high-performance and fast-moving environment where talent is empowered to drive real impact at the global scale. Supported by 24/7 multilingual customer service and a strong commitment to innovation, we are shaping the future of finance through technology, collaboration, and bold execution.
Today, Bybit is recognized as one of the most trusted and transparent platforms in the digital asset industry, continuing to expand its global presence while building the infrastructure for the next generation of financial services.
Project Overview：
Maintain the mobile app for iOS and Android in Flutter
Follow Figma designs to build beautiful interfaces through Flutter
Work with our design and backend teams to implement new features
Stay up to date with best practices in mobile performance, security, and UX
Write documentation and support internal knowledge sharing
Must Haves
Major in Computer Science or related fields.
Solid foundation in computer science and a good understanding of microcomputer principles.
Strong sense of responsibility for software products, with good communication skills and excellent teamwork capabilities.
Proficient in at least one programming language, such as (but not limited to): Java, Kotlin, Objective-C, Swift, C, C++, or Python.
Passion for building the high-performance apps
Nice to Haves
Strong experience with Flutter and Native mobile development
Solid understanding of TypeScript and modern React patterns
Side projects or open-source contributions
Why Join Us
At Bybit, we are committed to fostering a supportive and enriching work environment.
Our benefits include:
- Study Growth Fund: We support your professional development and continuous learning.
- Internal Events: Participate in regular team-building activities, workshops, and events designed to promote collaboration and innovation.
- Global Collaboration: Be part of a diverse, international team, working alongside colleagues from around the world.
- Career Advancement: Access opportunities for growth and advancement within a rapidly expanding global company.
- Internal Mobility: Grow with us- Your long-term development is important to us. We offer internal job opportunities to help build your career path.
Location: Hong Kong SAR; Kuala Lumpur, Malaysia
About Us
Established in 2018, Bybit is one of the world’s leading cryptocurrency exchanges and digital financial platforms, serving over 80 million users across more than 200 countries and regions. Powered by world-class technology and a user-first mindset, Bybit delivers a seamless ecosystem across trading, payments, wealth management, custody, institutional services, and Web3 — connecting users to the future of digital finance.
Our core values define how we build. We listen, care and improve to create products and experiences that put users first. Backed by a global team of ambitious builders, problem-solvers, and innovators, we foster a high-performance and fast-moving environment where talent is empowered to drive real impact at the global scale. Supported by 24/7 multilingual customer service and a strong commitment to innovation, we are shaping the future of finance through technology, collaboration, and bold execution.
Today, Bybit is recognized as one of the most trusted and transparent platforms in the digital asset industry, continuing to expand its global presence while building the infrastructure for the next generation of financial services.
Must Haves
Major in Computer Science or related fields.
Solid foundation in computer science and a good understanding of microcomputer principles.
Strong sense of responsibility for software products, with good communication skills and excellent teamwork capabilities.
Proficient in at least one programming language, such as (but not limited to): Java, Kotlin, Objective-C, Swift, C, C++, or Python.
Passion for building the high-performance apps
Nice to Haves
Strong experience with Flutter and Native mobile development
Solid understanding of TypeScript and modern React patterns
Side projects or open-source contributions
Why Join Us
At Bybit, we are committed to fostering a supportive and enriching work environment.
Our benefits include:
- Study Growth Fund: We support your professional development and continuous learning.
- Internal Events: Participate in regular team-building activities, workshops, and events designed to promote collaboration and innovation.
- Global Collaboration: Be part of a diverse, international team, working alongside colleagues from around the world.
- Career Advancement: Access opportunities for growth and advancement within a rapidly expanding global company.
- Internal Mobility: Grow with us- Your long-term development is important to us. We offer internal job opportunities to help build your career path.
Задачи:
— Реализовывать и развивать мобильный SDK, проводя рефакторинг существующей архитектуры на Kotlin Multiplatform;
— Развивать сетевой и data layer, включая управление запросами, retry-стратегии, throttling, обработку ошибок, кэширование, локальное хранение и синхронизацию данных;
— Разрабатывать асинхронные пайплайны с контролем конкурентности и latency, реализовывать фоновые операции и управление состоянием данных;
— Реализовывать realtime-взаимодействие и persistent connections, включая механизмы восстановления соединения, интеграцию нативной и веб-части через WebView и взаимодействие с backend;
— Обеспечивать корректную интеграцию и работу SDK в сторонних приложениях, заниматься тестированием, диагностикой, мониторингом и оптимизацией производительности и потребления ресурсов.
Требования:
— Практический опыт разработки на Kotlin Multiplatform на системном уровне, не UI;
— Опыт разработки SDK, библиотек, framework или сложных переиспользуемых мобильных компонентов;
— Знание интеграции мобильных библиотек или SDK в сторонние приложения;
— Регулярная практика проектирования и реализации архитектуры мобильных приложений или платформенных решений;
— Опыт работы с асинхронностью и конкурентностью (Kotlin Coroutines / Flow);
— Опыт проектирования сетевого взаимодействия на уровне production, применение модели OSI при разработке сервисов;
— Понимание построения data-heavy систем на клиентской стороне: кэширование, синхронизация, консистентность данных;
— Навыки самостоятельной реализации технических решений, тестирования и отладки;
— Опыт системного debugging и поиска первопричин проблем.
Будет плюсом:
— Опыт разработки и поддержки приложений с DAU > 1000;
— Знание Swift и Swift Concurrency;
— Опыт интеграции WebView и взаимодействия нативной и веб-части;
— Опыт работы с realtime-коммуникациями, streaming и persistent connections;
— Знакомство с SQLDelight, OkHttp и аналогичными инструментами;
— Понимание работы поисковых систем, ранжирования или e-commerce систем.
Условия:
— Удалённая работа или гибридный формат;
— Предпочтительная локация: Москва, Екатеринбург, Нижний Новгород (для периодических личных встреч);
— Оформление сотрудничества через ИП;
— Оплата 2000–2500 рублей в час;
— Максимальный месячный бюджет 420 000 рублей.
Дополнительно:
— Вы будете единственным мобильным инженером компании, отвечать за мобильный SDK;
— Архитектура SDK 2.0 уже спроектирована, предстоит реализовать её, довести SDK до production и обеспечивать дальнейшее развитие и качество;
— Тесное взаимодействие с backend-инженером, включая совместные code review;
— Работа над SDK от анализа и проработки решений до реализации, тестирования, выпуска и поддержки.
Технологический стек компании включает Kotlin, Swift, Kotlin Multiplatform, SQLDelight, OkHttp, Flutter, Python.
Компания YoloPrice — embeddable e-commerce платформа, интегрируемая в сторонние мобильные приложения, обеспечивающая ключевую логику: поиск, данные, синхронизацию и работу приложения в online.
Реализовывать и развивать SDK, проводя рефакторинг существующей архитектуры Kotlin Multiplatform; Развивать сетевой и data layer: управление запросами, retry-стратегии, throttling, обработку ошибок, кэширование, локальное хранение и синхронизацию данных;
- Реализовывать и развивать SDK на Kotlin Multiplatform. - Разрабатывать networking и data layers: управление запросами, retry, throttling, обработку ошибок, caching, local storage и синхронизацию данных.
Location: Hamburg
Workplace: Hybrid
TECH DIRECTOR - MOBILE (F/M/D)
JOB DESCRIPTION
adjoe https://adjoe.io/ is a leading mobile ad platform developing cutting-edge advertising and monetization solutions to meet the diverse needs of app publishers. Being part of the applike group https://applike-group.com/ ecosystem plus the significant financial backing from Bertelsmann empowers us to do this. At adjoe, we are proud of our advanced tech stack https://adjoe.io/techstack/ and dynamic and innovative workforce.
MEET YOUR TEAM: REWARDED SOLUTIONS - MOBILE INTEGRATIONS
The Mobile Integrations Team is part of our Rewarded Solutions Department which develops the technology behind adjoe's innovative rewarded engagement products that serve over 57 million daily mobile users.
Mobile Integrations is responsible for the native Android and iOS SDKs written in Java/Kotlin, Swift, and Unity that handle much of the complex engagement flows. On top of the SDKs are widely customizable web applications built with React TypeScript; and a highly performant Golang backend hosted on AWS that processes millions of events hourly. Our system matches each game with its ideal users, delivering rewards optimized for satisfaction through data processed via Kafka, Spark, S3, Trino, and MySQL.
For team members, this means having state-of-the-art resources to build engaging rewarded ad experiences that seamlessly integrate into the world’s top apps while delivering exceptional results for advertisers and monetizers in this industry-leading technology.
WHAT YOU WILL DO:
- Lead & Scale: Take ownership of the Mobile Integrations team from day one, setting the benchmark for engineering excellence across our mobile SDKs before scaling your scope to lead up to 3 cross-functional mobile engineering teams, guiding line managers and tech leads along the way.
- Architect & Innovate: Drive the holistic mobile architecture, technological direction, and platform scalability, ensuring our SDKs remain robust, performant, and future-proof across millions of daily active devices.
- Partner Strategically: Collaborate closely with the VP of Engineering, Product leadership, and executive stakeholders to translate high-level business goals into a concrete, high-impact mobile platform roadmap.
- Foster Engineering Culture: Champion engineering best practices, sustainable code reviews, and architectural alignment across teams while collaborating with tech leads company-wide to push technical standards forward.
- Build & Mentor: Play a defining role in recruitment and organizational growth; mentoring senior engineers and managers, fostering a high-performance culture, and helping every engineer reach their full potential.
WHO YOU ARE:
- An experienced engineering leader with 8+ years of professional experience in software development and technical management.
- Extensive experience as a Team Lead, Engineering Manager or Tech Director, ideally with a track record or strong readiness for managing large mobile engineering teams.
- Deep background in mobile ecosystems (iOS/Android, SDK development) with high architectural standards across scaling systems.
- Proven track record of mentoring tech leads and senior engineers, driving engineering strategy, and organizational scale.
- Someone who enjoys translating business requirements into pragmatic technical solutions and can also efficiently communicate technical solutions to business stakeholders.
- Able to balance developer experience, security, and performance when designing interfaces and systems.
- A strong communicator who can adapt their level of detail when talking to engineers, product, and business stakeholders.
- Fluent in English.
What’s in It for You?
At adjoe, you’re not here to just close JIRA tickets, you’re helping build the infrastructure behind one of the most impactful platforms in adtech. The systems you work on will reach hundreds of millions of users and power billions of decisions every day.
- Go Big. Own projects with impact on over 770M users and push adtech boundaries.
- Move Fast. Ship solutions multiple times a day, learn from results, and keep momentum.
- Be Direct. Solve problems openly and collaborate across teams.
- Thrive Together. Grow with a diverse, global team of people from over 40 different countries that learn from each other.
- Have Fun. Celebrate wins, enjoy daily victories, and bring your energy.
We welcome applications from people who will contribute to the diversity of our company.
We welcome applications from people who will contribute to the diversity of our company.
Location: Poland
Why Join Exadel
We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.
From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.
About the Client
An international transportation technology company focused on building scalable digital solutions for modern rail operations. The organization develops internal platforms and automation tools that improve operational efficiency, support business growth, and streamline complex processes in a fast-paced environment.
Tech Stack
Kotlin, Native Android Development, Jetpack Compose, Coroutines, MVVM, Clean Architecture, Kotlin Multiplatform (KMP), GraphQL, REST APIs, Firebase Remote Config, Crashlytics, Dagger/Hilt, Espresso, Robolectric, JUnit, GitLab CI/CD, Fastlane
What You’ll Do
Design, develop, and maintain high-quality native Android applications
Contribute to the architectural foundations of a major transformation of client-facing mobile applications
Design and implement scalable, maintainable, and testable mobile solutions
Drive technical improvements and contribute to architecture decisions
Collaborate closely with iOS, Backend, and cross-functional teams
Explore and contribute to Kotlin Multiplatform initiatives
Optimize application performance, scalability, and user experience
Ensure high engineering quality through testing and code reviews
Mentor and support other engineers within the team
Contribute to technical documentation and development best practices
What You Bring
Strong senior-level expertise in native Android development and Kotlin
Experience with modern Android development, including Jetpack Compose and Coroutines
Strong understanding of clean, scalable, and testable mobile architecture principles
Experience contributing to mobile architecture design and improvements; previous involvement in architectural decisions or initiatives is a strong plus
Experience with unit, integration, and UI testing
Openness and willingness to work with Kotlin Multiplatform (KMP)
Interest in backend technologies and understanding how mobile applications interact with backend service
Strong communication and collaboration skills
Experience working in Agile environments
Nice to have
Hands-on experience with Kotlin Multiplatform (KMP)
Previous involvement in mobile architecture design or transformation projects
Experience with GraphQL or REST API integrations
Knowledge of Firebase tools and mobile analytics
Understanding of UI/UX principles and mobile accessibility
English Level
Upper-intermediate
Legal & Hiring Information
Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more.
Reasonable accommodations are available to enable individuals with disabilities to perform essential functions.
Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs.
Compensation details are shared with candidates at the early stage of the recruitment process.
The offer is not binding until a signed contract is in place.
Your Benefits at Exadel
Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.
International projects
In-office, hybrid, or remote flexibility
Medical healthcare
Recognition program
Ongoing learning & reimbursement
Well-being program
Team events & local benefits
Sports compensation
Referral bonuses
Top-tier equipment provision
Exadel Culture
We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.
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