Tech Lead React Native

🏢 Summary: Hands-on Technical Lead role focused on architecting and scaling a mobile ecosystem for a high-growth enterprise delivery platform. The position involves leading a mobile team, owning technical strategy, and building performant React Native applications with deep native iOS and Android integrations. The role emphasizes offline-first systems, real-time GPS tracking, and high-concurrency mobile architectures. 🗂️ Requirements: 8+ years of software engineering experience, Production-level mobile development experience, 2+ years in technical leadership or team lead role, Experience driving architecture and mentoring engineers, Expert knowledge of React Native, Expert knowledge of TypeScript, Deep understanding of native iOS internals, Deep understanding of native Android internals, Fluent English, Fluent Polish (B2+ minimum) 📃 Skills: ReactNative, TypeScript, iOS, Android, GPS, Geofencing 🏢 Description: Technical Lead (Mobile) The Opportunity: We are looking for a hands-on Technical Lead to own, architect, and scale the mobile ecosystem powering a high-growth US enterprise delivery platform. You will build and mentor a small, agile mobile team from day one in a newly established Kraków R&D hub. This is a greenfield product-minded role —not an order-taker position. You will have full ownership of technical architecture, strategy, and engineering standards. The Core Challenges Real-World Engineering: Architecting robust, battery-optimized systems that survive unstable field connectivity ( offline-first data synchronization ). High-Concurrency Tracking: Implementing high-performance real-time GPS/location tracking and geofencing workflows for millions of operational end-users. Hybrid Architecture: Scaling a core React Native platform while tightly integrating native iOS/Android subsystems where performance is critical. Your Profile 8+ years in software engineering with deep, production-level mobile development experience. 2+ years in a technical leadership/team lead capacity, driving architecture and mentoring junior/senior engineers. Expert-level proficiency in React Native , TypeScript , and deep understanding of native iOS/Android internals. Fluent in English and Polish (B2+ minimum for collaboration across EU/US time zones). The Company A fast-growing, highly decorated US SaaS platform managing a network of over 12 million drivers. Consistently ranked on Forbes’ America's Best Startup Employers . They combine the technical agility of an early-stage startup with the financial backing and stability of an established enterprise market leader.

🏢 Summary: The role involves building and scaling a high-performance React Native mobile application integrated with an existing web customer portal. The developer will own the mobile architecture, ensuring scalable navigation, state management, networking, and seamless backend API integration for iOS and Android. The position includes end-to-end feature delivery, performance optimization, and establishing mobile development best practices. 🗂️ Requirements: 5–8+ years of Frontend or Mobile development experience, 3+ years of production experience with React Native on iOS and Android, Strong proficiency in JavaScript, Strong proficiency in TypeScript, Experience with native module integration, Experience with deep-level debugging, Knowledge of mobile performance profiling, Ability to build accessible and responsive mobile UIs, Experience with unit, integration, and e2e testing, Experience with CI/CD workflows, Experience with React Navigation, Experience with state management using React Query, SWR, Redux, or Context 📃 Skills: ReactNative, JavaScript, TypeScript, iOS, Android, ReactNavigation, ReactQuery, SWR, Redux, Context, Jest, RTL, CI/CD, APIs 🏢 Description: The objective is to build and scale a React Native mobile application that serves as a high-performance companion to an existing web customer portal. You will own the core mobile experience, architecting scalable solutions for navigation, state management, and networking while ensuring seamless integration with existing backend APIs. This role is ideal for a developer who can deliver end-to-end features and establish mobile best practices within a collaborative team environment. Details Location: Remote, with a preference for candidates based in Wrocław (for quarterly on-site client meetings). Primary Project Language: Polish. Target Platforms: iOS and Android. Responsibilities End-to-End Development: Building mobile features that maintain parity and cohesion with the web customer portal. Architecture: Designing scalable code structures, focusing on efficient navigation, state management, and robust networking. Performance & Reliability: Ensuring high stability, fast UI responsiveness, and implementing offline-tolerant UX where necessary. Technical Leadership: Establishing mobile development standards, mentoring other engineers, and improving release cadence. Collaboration: Working closely with product, design, and backend teams to ensure a unified user experience. Requirements General Seniority: 5–8+ years in Frontend or Mobile development. React Native Mastery: 3+ years of experience shipping and maintaining production React Native apps (iOS + Android). Core Skills: Strong proficiency in JavaScript/TypeScript . Native Modules: Experience with native module integration and deep-level debugging. Optimization: Solid knowledge of mobile performance profiling and building accessible, responsive UIs. Testing & DevOps: Comfort with unit/integration/e2e testing (Jest, RTL) and CI/CD workflows. Navigation: React Navigation. Data & State: React Query / SWR or Redux / Context. Nice to Have Familiarity with both Expo and bare React Native workflows. Experience with push notifications, deep linking, and mobile analytics. Prior experience with B2B, customer self-service, or account management applications.

🏢 Summary: The role involves developing a React Native mobile application for smart energy management, integrating IoT devices and analytics features. You will build high-performance UI components, enable secure communication with HVAC hardware, and implement data visualization modules while collaborating on Azure-based REST APIs. 🗂️ Requirements: 5+ years of commercial experience with React Native, Experience building mobile UI components and application architecture, Knowledge of secure communication between mobile apps and IoT/hardware systems, Experience with REST API integration and JSON data handling, Ability to optimize mobile app performance and troubleshoot bottlenecks, Fluency in English, Residing in Poland 📃 Skills: React, ReactNative, JavaScript, TypeScript, REST, JSON, Azure, IoT, HVAC 🏢 Description: We are looking for a React Native Developer to join a project for a global energy‑tech leader. You will help build a mobile application that supports smart energy management in homes and commercial spaces. The role connects mobile development, IoT, and modern analytics features Your tasks Develop high‑performance, reusable UI components for mobile apps using React Native Implement secure and low‑latency communication between mobile devices and HVAC hardware Build data visualization modules for energy usage, savings, and indoor air quality insights Collaborate with backend developers to define and consume RESTful APIs hosted on Azure Diagnose and resolve performance issues in complex, data‑heavy scenarios Requirements At least 5 years of experience working with React Native in commercial projects Strong skills in building mobile UI components and app architecture Good understanding of secure communication between mobile apps and hardware/IoT systems Ability to work with API integrations and JSON data handling Experience optimizing app performance and troubleshooting bottlenecks Fluency in English Residing in Poland required

🏢 Summary: Hands-on Technical Lead role focused on architecting, scaling, and optimizing React Native mobile applications supporting real-time logistics workflows. The position combines technical leadership with active development, ensuring performance, reliability, and seamless integration with backend systems in production environments. It involves setting engineering standards, improving CI/CD processes, and mentoring mobile engineers. 🗂️ Requirements: 8+ years professional software engineering experience, Significant hands-on mobile development experience, 2+ years in technical leadership or team lead role, Strong experience building and scaling React Native applications in production, Solid understanding of iOS and Android platforms, Proficiency in React Native and TypeScript, Experience designing and consuming RESTful APIs, Experience with real-time service integrations, Ability to ensure application performance, quality, and stability, Polish B2+ and English B2+ 📃 Skills: React, ReactNative, TypeScript, iOS, Android, REST, APIs, CI/CD, Git, Mobile, JavaScript 🏢 Description: Overview Technical Lead, Mobile Engineering is a hands-on technical leadership role responsible for shaping and scaling OneRail’s mobile application ecosystem that powers real-time last mile orchestration, driver workflows, and enterprise delivery visibility. This role exists to ensure our mobile solutions are reliable, performant, and resilient in real-world logistics environments where connectivity may fluctuate and operational precision is critical. Responsibilities Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations. Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows. Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users. Ensure application performance, responsiveness, quality, and stability in production environments. Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines. Conduct and contribute to regular code reviews to maintain high engineering standards. Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend. Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency. Balance feature development with technical debt reduction and long-term platform sustainability. Improve developer experience through tooling enhancements, workflow automation, and release process optimization. Mentor and develop mobile engineers, supporting skill growth and career progression. Support hiring, onboarding, and retention of top mobile engineering talent. Qualifications 8+ years of professional software engineering experience, including significant hands-on mobile development. 2+ years of experience in technical leadership or team lead capacity. Strong experience building and scaling React Native applications in production environments. Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks. Proficiency in React Native, TypeScript Experience designing and consuming RESTful APIs and real-time service integrations. Strong problem-solving skills with the ability to balance business priorities and technical excellence. Excellent communication and collaboration skills (Polish B2+ & English B2+) Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week). Salary level: 28 000 – 32 000 PLN/ month

🏢 Summary: Hands-on Technical Lead role focused on architecting and scaling React Native mobile applications supporting real-time logistics workflows. The position combines technical leadership with active mobile development, ensuring high performance, reliability, and seamless integration with backend systems. It involves setting engineering standards, optimizing CI/CD processes, and mentoring mobile engineers in a production environment. 🗂️ Requirements: 8+ years of professional software engineering experience, 2+ years of technical leadership experience, Strong experience with React Native in production, Experience with native iOS and Android integrations, Proficiency in TypeScript, Experience designing and consuming RESTful APIs, Experience with real-time service integrations, Ability to ensure code quality, testing, and CI/CD standards, Polish B2+, English B2+ 📃 Skills: React, ReactNative, TypeScript, iOS, Android, REST, CI/CD, Git, APIs 🏢 Description: Overview Technical Lead, Mobile Engineering is a hands-on technical leadership role responsible for shaping and scaling OneRail’s mobile application ecosystem that powers real-time last mile orchestration, driver workflows, and enterprise delivery visibility. This role exists to ensure our mobile solutions are reliable, performant, and resilient in real-world logistics environments where connectivity may fluctuate and operational precision is critical. Responsibilities Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations. Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows. Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users. Ensure application performance, responsiveness, quality, and stability in production environments. Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines. Conduct and contribute to regular code reviews to maintain high engineering standards. Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend. Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency. Balance feature development with technical debt reduction and long-term platform sustainability. Improve developer experience through tooling enhancements, workflow automation, and release process optimization. Mentor and develop mobile engineers, supporting skill growth and career progression. Support hiring, onboarding, and retention of top mobile engineering talent. Qualifications 8+ years of professional software engineering experience, including significant hands-on mobile development. 2+ years of experience in technical leadership or team lead capacity. Strong experience building and scaling React Native applications in production environments. Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks. Proficiency in React Native, TypeScript Experience designing and consuming RESTful APIs and real-time service integrations. Strong problem-solving skills with the ability to balance business priorities and technical excellence. Excellent communication and collaboration skills (Polish B2+ & English B2+) Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week). Salary level: 28 000 – 32 000 PLN/ month

🏢 Summary: Hands-on Technical Lead role responsible for architecting and scaling React Native mobile applications that support real-time logistics workflows and enterprise delivery visibility. The position combines technical leadership with active mobile development, focusing on performance, reliability, and resilient solutions in production environments. It includes ownership of mobile architecture, engineering standards, and CI/CD practices. 🗂️ Requirements: 8+ years of professional software engineering experience, 2+ years of technical leadership experience, Strong experience with React Native in production, Experience with native iOS and Android integration, Proficiency in TypeScript, Experience designing and consuming RESTful APIs, Experience with real-time service integrations, Ability to establish and enforce CI/CD practices, English B2+, Polish B2+ 📃 Skills: ReactNative, TypeScript, iOS, Android, REST, CI/CD, JavaScript, APIs 🏢 Description: Overview Technical Lead, Mobile Engineering is a hands-on technical leadership role responsible for shaping and scaling OneRail’s mobile application ecosystem that powers real-time last mile orchestration, driver workflows, and enterprise delivery visibility. This role exists to ensure our mobile solutions are reliable, performant, and resilient in real-world logistics environments where connectivity may fluctuate and operational precision is critical. Responsibilities Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations. Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows. Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users. Ensure application performance, responsiveness, quality, and stability in production environments. Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines. Conduct and contribute to regular code reviews to maintain high engineering standards. Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend. Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency. Balance feature development with technical debt reduction and long-term platform sustainability. Improve developer experience through tooling enhancements, workflow automation, and release process optimization. Mentor and develop mobile engineers, supporting skill growth and career progression. Support hiring, onboarding, and retention of top mobile engineering talent. Qualifications 8+ years of professional software engineering experience, including significant hands-on mobile development. 2+ years of experience in technical leadership or team lead capacity. Strong experience building and scaling React Native applications in production environments. Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks. Proficiency in React Native, TypeScript Experience designing and consuming RESTful APIs and real-time service integrations. Strong problem-solving skills with the ability to balance business priorities and technical excellence. Excellent communication and collaboration skills (Polish B2+ & English B2+) Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week). Salary level: 28 000 – 32 000 PLN/ month

🏢 Summary: The role involves developing and maintaining high-quality React Native mobile applications for iOS and Android, supporting major gaming brands. The position focuses on delivering performant, user-friendly apps and contributing to new product launches and market expansions. It requires strong mobile expertise and collaboration within an international team. 🗂️ Requirements: Minimum 5 years of mobile development experience for Android and iOS, Strong experience with React Native, Proficiency in TypeScript, Strong understanding of core JavaScript concepts, Experience with cloud integrations, Experience working with REST APIs, Experience with GraphQL, Experience with Firebase, Experience with Datadog, Experience with version control systems 📃 Skills: React, ReactNative, TypeScript, JavaScript, REST, GraphQL, Firebase, Datadog, Git, Cloud 🏢 Description: ABOUT THE ROLE Join our team of skilled developers working on mobile applications for top LeoVegas brands like BetMGM, BetUK, and Expekt. With offices across Europe in Sweden, Poland, Spain, and the UK, we create high-performance and innovative solutions for both iOS and Android platforms. We’re looking for a React Native Developer with a mobile-first mindset and an understanding of native development to help drive our projects forward. We are expanding our React Native team in Poland and are searching for talented engineers who are passionate about mobile development and eager to build innovative gaming experiences. YOU WILL BE RESPONSIBLE FOR: Develop and maintain high-quality React native applications for both iOS and Android platforms Ensure a smooth, engaging, and intuitive user experience Work on apps for LeoVegas brands such as BetMGM, BetUK, and Expekt Improve and enhance applications with a strong product focus Contribute to launching new brands and expanding into new markets OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS At least 5 years of experience working as a mobile developer for Android and iOS Strong experience with React Native Proficiency in TypeScript Good understanding of core JavaScript principles and concepts Experience with cloud integrations Experience with Rest API, Datadog, GraphQL, Firebase and version control NICE TO HAVES Experience with Kotlin, Objective-C or Swift Experience writing Unit Tests Hands-on experience optimizing mobile performance Experience with CI/CD integrations WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the iGaming industry. We’re a team of over 1800 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 16 offices worldwide. What we offer: you can work in a hybrid model , we would like you to show up in our Warsaw office three times a week , the rest of the days of the week are up to you, we work in European office hours, ​​ 800 PLN monthly for benefits (we have a platform with sport cards and different options for private healthcare), welcome package, no dress code, international teams, 💻 Equipment: MacBook Pro 16"/14'' + smartphone (iPhone 15 or Samsung Galaxy S24 - it’s your choice). Our office: located in the centre of Warsaw (Królewska 16) bike parking 🚲 chillout zones (we have a billiard table too! 🎱) free snacks 🥜 company breakfast every Monday 🥪 Our recruitment process: 45-minute phone/Zoom call with our recruiter 90-minutes technical interview max. 40 min online personality and logic test (not live) 1-hour cultural fit interview **As our company working language is English, we’d like to see your CV in English please** More about us: Careers site: www.leovegasgroup.com/careers LinkedIn: https://www.linkedin.com/company/leovegasgroup/ Instagram: www.instagram.com/lifeatleo/

🏢 Summary: The offer is for a React Native Developer to build and maintain high-performance mobile applications for iOS and Android within leading gaming brands. The role focuses on delivering scalable, user-centric solutions, enhancing existing apps, and supporting new market launches. It requires strong cross-platform mobile expertise and collaboration in an agile environment. 🗂️ Requirements: Minimum 5 years experience in mobile development for Android and iOS, Strong commercial experience with React Native, Proficiency in TypeScript, Strong knowledge of core JavaScript principles, Experience with cloud integrations, Experience working with REST APIs, Experience with GraphQL, Experience with Firebase, Experience with Datadog, Experience with version control systems 📃 Skills: ReactNative, TypeScript, JavaScript, REST, GraphQL, Firebase, Datadog, Git, Android, iOS, Cloud 🏢 Description: ABOUT THE ROLE Join our team of skilled developers working on mobile applications for top LeoVegas brands like BetMGM, BetUK, and Expekt. With offices across Europe in Sweden, Poland, Spain, and the UK, we create high-performance and innovative solutions for both iOS and Android platforms. We’re looking for a React Native Developer with a mobile-first mindset and an understanding of native development to help drive our projects forward. We are expanding our React Native team in Poland and are searching for talented engineers who are passionate about mobile development and eager to build innovative gaming experiences. YOU WILL BE RESPONSIBLE FOR: Develop and maintain high-quality React native applications for both iOS and Android platforms Ensure a smooth, engaging, and intuitive user experience Work on apps for LeoVegas brands such as BetMGM, BetUK, and Expekt Improve and enhance applications with a strong product focus Contribute to launching new brands and expanding into new markets OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS At least 5 years of experience working as a mobile developer for Android and iOS Strong experience with React Native Proficiency in TypeScript Good understanding of core JavaScript principles and concepts Experience with cloud integrations Experience with Rest API, Datadog, GraphQL, Firebase and version control NICE TO HAVES Experience with Kotlin, Objective-C or Swift Experience writing Unit Tests Hands-on experience optimizing mobile performance Experience with CI/CD integrations WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the iGaming industry. We’re a team of over 1800 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 16 offices worldwide. What we offer: you can work in a hybrid model , we would like you to show up in our Warsaw office three times a week , the rest of the days of the week are up to you, we work in European office hours, ​​ 800 PLN monthly for benefits (we have a platform with sport cards and different options for private healthcare), welcome package, no dress code, international teams, 💻 Equipment: MacBook Pro 16"/14'' + smartphone (iPhone 15 or Samsung Galaxy S24 - it’s your choice). Our office: located in the centre of Warsaw (Królewska 16) bike parking 🚲 chillout zones (we have a billiard table too! 🎱) free snacks 🥜 company breakfast every Monday 🥪 Our recruitment process: 45-minute phone/Zoom call with our recruiter 90-minutes technical interview max. 40 min online personality and logic test (not live) 1-hour cultural fit interview **As our company working language is English, we’d like to see your CV in English please** More about us: Careers site: www.leovegasgroup.com/careers LinkedIn: https://www.linkedin.com/company/leovegasgroup/ Instagram: www.instagram.com/lifeatleo/

🏢 Summary: Senior React Native Developer role focused on delivering end-to-end mobile applications using React Native and Expo, with responsibility for architecture, API integration, and technical leadership. The position involves driving technical decisions, ensuring code quality, and collaborating with clients and teams to build scalable enterprise mobile solutions. 🗂️ Requirements: Advanced English proficiency, Proven experience developing mobile applications with React Native, Practical experience with Expo, Experience integrating REST or GraphQL APIs, Experience in technical leadership or mentoring, Experience with debugging and monitoring tools, Understanding of scalability and code quality principles, Ability to translate business requirements into technical solutions 📃 Skills: React, ReactNative, Expo, REST, GraphQL, CI/CD, Monitoring, Logging, APIs, Mobile 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: We’re seeking a seasoned Senior React Native Developer with strong experience in React Native and Expo, who is ready to step into a technical leadership role on mobile projects. In this position, you’ll be responsible for delivering end-to-end mobile applications, shaping architectural decisions, integrating with existing APIs, and supporting the team in building high-quality solutions. 📈 Your Responsibilities : Build and mantain mobile applications using React Native and Expo Integrate mobile frontends with existing APIs and backend services Partner with internal teams and clients to ensure solutions align with business objectives Drive technical planning, analysis, and execution across development work Support the team through code reviews and knowledge sharing, raising engineering quality Collaborate on delivering scalable, maintainable, and observable enterprise solutions Serve as the primary contact for technical topics within the project 🔑 Key Requirements: Advanced English in speaking and writing (you will be working in an international team) Solid track record of developing mobile apps with React Native Practical experience working with Expo Strong background in integrating with REST and/or GraphQL APIs Experience guiding others or contributing in a mentoring / technical leadership capacity Familiarity with debugging and monitoring tools Good understanding of scalability, maintainability, and overall code quality Ability to work with clients and translate business requirements into technical solutions ➕ Nice to have: Background in building or contributing to enterprise-scale applications Familiarity with setting up or working with mobile CI/CD processes Experience using observability solutions, including logging and monitoring tools 📜 Our Promise (what you can expect from us): 17-22k PLN monthly on B2B contract 100% remote work (but we have offices in Krakow and Warsaw and we’re happy to meet there from time to time 😉) 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌 Recruitment process: 30 minute screening call online with our recruiter 1h technical call with our developer 30 minute conversation with the team leader on client side 30 minute English language check Final 1h technical call Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Lead a mobile engineering team to build and maintain scalable iOS and Android applications, owning the full mobile development lifecycle from development to operations. The role focuses on mobile architecture, engineering quality, API integration, and collaboration with cross-functional teams in a hybrid work environment. 🗂️ Requirements: Experience as a Tech Lead in Agile mobile teams, Strong hands-on experience with Swift and/or Kotlin, Knowledge of MVVM and Clean Architecture, Experience with CI/CD, testing, and monitoring, Understanding of API integration and backend basics, DevOps awareness, Strong problem-solving and decision-making skills, Fluent English, Availability to work from the Warsaw office 3 days per week 📃 Skills: Swift, Kotlin, MVVM, CI/CD, Testing, Monitoring, APIs, DevOps, Flutter, React, Java, Node.js, Android, iOS 🏢 Description: Your responsibilities: Lead, mentor, and grow a team of iOS and/or Android engineers, fostering a collaborative and high-performance culture Own the end-to-end mobile lifecycle (build, test, deploy, run – You build it, you run it) Develop scalable, high-quality mobile applications with a strong focus on performance and user experience Ensure code quality through pair programming, reviews, and defined engineering standards Align mobile solutions closely with backend systems, APIs, and enterprise architecture Drive the evolution of the mobile architecture, tooling, and overall application landscape Identify and reduce technical debt and operational risks Collaborate closely with Product, Design, SRE, and Security to deliver sustainable and reliable solutions Your Profile: Proven experience as a Tech Lead in Agile mobile teams Strong hands-on background in iOS (Swift) and/or Android (Kotlin) Solid understanding of modern architecture patterns (e.g. MVVM, Clean Architecture) Experience with CI/CD, testing, and monitoring in mobile environments Full-stack mindset (API integration, backend basics, DevOps awareness) Strong problem-solving skills, ownership, and decision-making capabilities Experience with or interest in cloud technologies Clear communication skills and strong self-initiative Fluent in English Nice to have -Experience with cross-platform frameworks (Flutter, React Native) -Backend knowledge (e.g. Java, Node.js) -Experience with cloud & DevOps You are comfortable coming to our Warsaw office 3 days a week. How about? Employment contract? Of course. With us you do not have to worry about stable employment. Benefits? We have them! Among other: corporate incentive program, sport card, private medical care. Lunch card? With the cooperation extended and permanent contract, you will receive additional funds to use for meal purchases. Working in a hybrid model? Of course! ! You work with us 2 days a week from home. Work wherever you want? In PAYBACK you have the opportunity. Working 100% remotely, also from European countries for 15 days a year. ‎Flexible working hours? Sounds great! We start working between 7 to 10. Trainings? Of course. We provide training to develop hard and soft skills. Convenient location? Sure! We invite you to our new office at Rondo Daszyńskiego, but we are currently also working remotely. Dress code? We definitely say no. There are no rigid dress code rules in our company, sneakers are more than welcome. Friendly atmosphere at work? Yes! In PAYBACK, people are the most important asset‎. Something is missing? Open communication is our priority, so dare to ask!‎