Senior Software Engineer (Architect/Principal) - React Native

🏢 Summary: Development role focused on integrating React Native into an existing native mobile application (iOS and Android). The position involves designing and implementing hybrid architecture, enabling efficient communication between native layers and React Native components. You will drive architectural decisions to ensure performance, scalability, and stability of the mobile system. 🗂️ Requirements: Very good knowledge of React Native, Experience in native iOS development (Swift or Objective-C) and/or Android (Kotlin or Java), Experience integrating React Native with native mobile applications, Knowledge of mobile application architecture, Experience with native-to-React Native communication (bridge, native modules), Knowledge of state management and data flow, Experience with CI/CD pipelines for mobile applications, Experience working with cross-platform mobile teams 📃 Skills: React, ReactNative, Swift, Objective-C, Kotlin, Java, iOS, Android, CI/CD, Bridge, NativeModules, Architecture 🏢 Description: 🚀 O projekcie Dołączysz do projektu rozwoju istniejącej aplikacji mobilnej, w którym kluczowym celem jest integracja technologii React Native z natywną platformą (iOS i Android). Będziesz projektować i wdrażać rozwiązania łączące natywny kod i komponenty React Native, dbając o jakość, skalowalność oraz stabilność aplikacji. 🎯 Twoja rola Projektowanie architektury integracji React Native z aplikacją natywną Identyfikacja punktów integracji między warstwą native i React Native Implementacja i optymalizacja komunikacji między warstwami (native ↔ React Native) Współpraca z zespołami iOS i Android przy wdrażaniu rozwiązań Zapewnienie wysokiej wydajności i stabilności aplikacji Tworzenie standardów i dobrych praktyk dla hybrydowej architektury mobile Udział w decyzjach technologicznych i architektonicznych 🛠️ Wymagania (must-have) Bardzo dobra znajomość React Native Doświadczenie w rozwoju aplikacji natywnych iOS (Swift/Objective-C) oraz/lub Android (Kotlin/Java) Doświadczenie w integracji React Native z aplikacją natywną (hybrydowe aplikacje) Znajomość architektury aplikacji mobilnych Doświadczenie z komunikacją między warstwami (bridge, native modules) Znajomość zarządzania stanem i przepływem danych Doświadczenie w systemach build (CI/CD) dla aplikacji mobilnych Umiejętność współpracy z zespołami cross-platform (iOS, Android, backend) ⭐ Mile widziane Doświadczenie w projektowaniu architektury (np. modularization, micro-frontends mobile) Znajomość narzędzi CI/CD dla aplikacji mobilnych Doświadczenie z optymalizacją wydajności w React Native Praca przy dużych, skalowalnych aplikacjach mobilnych Doświadczenie konsultingowe lub rola Tech Lead / Architekt 🤝 Oczekiwane kompetencje miękkie Umiejętność współpracy z różnymi zespołami (iOS, Android, backend) Komunikacja techniczna i tłumaczenie rozwiązań architektonicznych Proaktywność i inicjatywa Myślenie systemowe i analityczne 💡 Co oferujemy Realny wpływ na architekturę produktu Praca przy złożonym systemie mobilnym (React Native + natywne technologie) Współpraca z doświadczonym zespołem Praca w trybie hybrydowym (2 dni w tygodniu w biurze w Warszawie) Forma współpracy: B2B Stawka: 130-150 PLN/h netto

🏢 Summary: Senior React Native Engineer role focused on building and maintaining cross-platform mobile app features for a global QSR brand across iOS and Android. The position involves developing in TypeScript, integrating backend APIs and payment systems, implementing automated testing, and contributing to React Native architecture improvements within an Agile environment. The engineer will collaborate cross-functionally and support CI/CD, releases, and performance optimization. 🗂️ Requirements: 4+ years of professional software engineering experience, Commercial experience with React Native and TypeScript, Strong understanding of React Native architecture and Redux, Experience with REST APIs and token-based authentication, Familiarity with iOS and Android native builds (Swift/Objective-C, Kotlin/Java), Experience with unit, component, and end-to-end mobile testing, Experience releasing apps to App Store or Google Play, Upper-intermediate English level 📃 Skills: ReactNative, TypeScript, Redux, REST, Swift, Objective-C, Kotlin, Java, CI/CD, BrowserStack, GitHubActions, Expo, Fastlane, Adyen, ApplePay, GooglePay, LaunchDarkly, Sentry, AdobeExperiencePlatform, QuantumMetric, i18n, OneTrust, SSL 🏢 Description: ID72470 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role We are looking for a Senior React Native Engineer to build and maintain consumer mobile app features for a global QSR brand, spanning ordering, menu, cart, checkout, payments, and loyalty across iOS and Android. You will write clean TypeScript, integrate backend ordering and authentication APIs, maintain automated tests including end-to-end flows on real devices via BrowserStack, and contribute to the ongoing migration to React Native New Architecture. The role follows collaborative Agile practices with peer code review on every pull request. What you will do Build and maintain app features across the full stack of the mobile experience — ordering, menu, cart, checkout, payments, loyalty, and store locator; Write clean, well-tested TypeScript following established coding standards, with automated checks (linting, formatting, architectural boundary rules) running on every commit; Connect the app to backend services and third-party tools: ordering API, authentication, payment processors, fraud detection, feature flags, and analytics; Work with product managers, designers, and backend engineers to turn requirements into working software — joining sprint planning and reviews, implementing against Figma designs, aligning on API contracts; Review code from teammates and incorporate review feedback on pull requests; all PRs go through CI checks and peer review before merging; Debug and fix issues on both iOS and Android using crash reporting tools, native logs, and device/simulator builds; Write and maintain tests — unit, component, performance, and end-to-end flows tested on real devices via BrowserStack; Help keep build and release pipelines healthy: automated builds, beta testing distributions, and production releases to the App Store and Google Play; Document work — code comments, architecture decision records, and notes in the project management system; Participate in Agile ceremonies: standups, sprint planning, refinement, and retrospectives; Stay current with the React Native ecosystem and contribute to team-wide improvements, including the ongoing migration to the React Native New Architecture. Must haves 4+ years of professional software engineering experience; Strong commercial experience building cross-platform mobile apps with React Native and TypeScript ; Solid understanding of React Native architecture : state management (Redux), navigation, performance optimization, and local storage; Experience calling REST APIs and working with token-based authentication flows; Familiarity with the native side of React Native — iOS (Swift/Objective-C) and Android (Kotlin/Java) builds, native modules — or genuine enthusiasm to learn; Practical experience with mobile testing : unit tests, component tests, and end-to-end flows; Experience shipping apps to the App Store and/or Google Play ; Clear communicator who works well in a collaborative, cross-functional team; Upper-intermediate English level. Nice to haves Payment integrations (Adyen, Apple Pay, Google Pay); Feature flag systems (e.g., LaunchDarkly); Mobile analytics or error tracking (Sentry, Adobe Experience Platform, Quantum Metric); CI/CD for mobile: GitHub Actions, Expo EAS, Fastlane, BrowserStack; Internationalization (i18n) and multi-language app support; Privacy and consent frameworks (e.g., OneTrust); SSL/certificate pinning for mobile API security. The benefits of joining us Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Senior React Native Engineer role focused on building and shipping cross-platform mobile applications using React Native and Expo, alongside developing web apps in ReactJS and APIs in Node.js. The position involves full ownership of the feature lifecycle, from architecture and implementation to CI/CD and production monitoring, using TypeScript and AI-assisted development tools. Work is delivered in an Agile, product-centric environment with emphasis on quality, performance, and collaboration. 🗂️ Requirements: 4+ years of professional software engineering experience, Experience developing production software, Experience in Agile or team-based development environments, Proficiency in JavaScript, Proficiency in Node.js, Proficiency in ReactJS, Proficiency in React Native, Experience with REST APIs and service-based architectures, Experience with databases and data persistence concepts, Ability to follow established architecture and development standards, Strong problem-solving and troubleshooting skills, Ability to collaborate effectively within an engineering team, Good communication skills, Bachelor’s degree in Computer Science, Engineering, or related field or equivalent practical experience, Upper-intermediate English level 📃 Skills: JavaScript, TypeScript, Node.js, ReactJS, React, ReactNative, Expo, REST, APIs, Databases, CI/CD, Claude, GitHubCopilot, Agile, Codility 🏢 Description: ID73490 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role We are looking for a Senior React Native Engineer to build and ship cross-platform mobile apps using React Native and Expo while developing web applications in ReactJS and APIs in Node.js for a franchisee engineering team. You will own the engineering lifecycle for your features — architecture, implementation, testing, CI/CD, and production monitoring — writing clean TypeScript and actively using AI tools including Claude and GitHub Copilot as a development accelerator. The role follows Agile practices in a collaborative, product-centric engineering environment. What you will do Build and ship cross-platform mobile apps using React Native and Expo (iOS and Android); Develop web applications in ReactJS, sharing business rule libraries with mobile apps; Design, develop, and maintain APIs in NodeJS to support these applications; Use Claude or Github Copilot as a development accelerator, generating code scaffolding, writing and reviewing tests, creating documentation and prototyping solutions; Own the engineering lifecycle for your features: architecture, implementation, testing, CI/CD, and production monitoring; Write clean, well-tested TypeScript code; maintain high standards through code review and documentation; Optimize application performance for speed, responsiveness, memory, and offline capability; Debug, troubleshoot, and resolve software defects and production issues; Participate in Agile or product-centric delivery practices including sprint planning and retrospectives; Learn and apply new technologies, tools, and patterns to improve system quality and team effectiveness. Must haves Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience; 4+ years of professional software engineering experience focused on backend and cloud infrastructure; Strong experience with JavaScript , Node.js , and TypeScript ; Strong understanding of RESTful APIs , Microservices architecture, and event-driven systems; Experience working with databases, including PostgreSQL , and data persistence concepts; Hands-on experience with Microsoft Azure and Amazon Web Services (AWS) ; Deep experience with Infrastructure as Code using Terraform and CI/CD using Azure DevOps ; Experience with legacy platform migrations, ETL processes, and data hygiene; Experience developing secure, high-quality, and maintainable code following industry security best practices; Familiarity with Dynatrace and CloudWatch ; Upper-intermediate English level. The benefits of joining us Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Hands-on Technical Lead role focused on architecting and scaling production React Native mobile applications used in real-time logistics operations. You will lead mobile development, ensure high performance and reliability in low-connectivity environments, and mentor a small engineering team. The position combines technical leadership with active coding and close collaboration with Product and Design. 🗂️ Requirements: 8+ years of software engineering experience, Strong mobile development background, 2+ years in Technical Lead or Team Lead role, Expertise in React Native, Proficiency in TypeScript, Understanding of native iOS integrations, Understanding of native Android integrations, Experience with RESTful APIs, Experience with real-time data integrations, Polish language proficiency (B2+), English language proficiency (B2+) 📃 Skills: React, ReactNative, TypeScript, iOS, Android, REST, APIs, CI/CD 🏢 Description: Ever wondered what powers the tech behind massive, real-time delivery networks? Our client is a fast-growing, US-based LogTech pioneer reshaping last-mile delivery. Their platform combines SaaS solutions with real-world logistics networks to optimize supply chain efficiency for global enterprise customers. Now, they are expanding their engineering presence in Kraków . About the Role This is a hands-on technical leadership role. You will own the architecture and development of React Native mobile apps used by drivers and operations teams. Since these apps are used on the move, your main goal will be to keep them fast, reliable, and stable—even with poor network connectivity. What you will do Design and scale the architecture of production React Native applications. Write clean code and deliver new features alongside the team. Mentor and guide a small team of mobile engineers. Set high standards for code quality, testing, security, and CI/CD pipelines. Work closely with Product and Design teams to build user-friendly mobile features. Requirements 8+ years of software engineering experience, with a heavy focus on mobile development. 2+ years of experience in a Technical Lead or Team Lead role. Strong expertise in React Native and TypeScript . Good understanding of native iOS and Android integrations. Experience working with RESTful APIs and real-time data integrations. Strong communication skills with Polish (B2+) and English (B2+) . If you are a hands-on leader ready to build reliable, real-world mobile tech, we want to hear from you. Send us your CV and let’s talk! 📞

🏢 Summary: 4-month freelance contract for a Senior React Native Developer to build and maintain a cross-platform mobile application for iOS and Android based on an existing web platform. The role focuses on implementing new features, integrating APIs, optimizing performance, and contributing to architecture and code quality. The application supports monitoring and operational control of autonomous cleaning robots in large commercial facilities. 🗂️ Requirements: Availability from July 1st, 4+ years of commercial software development experience, Strong knowledge of React Native, Strong knowledge of TypeScript, Experience with REST API integrations, Understanding of App Store release processes, Understanding of Google Play release processes, Experience working in Agile teams, Proficiency with Git 📃 Skills: React, ReactNative, TypeScript, REST, Git, iOS, Android, Swift, Kotlin, CI/CD, Agile 🏢 Description: We are looking for an experienced Senior React Native Developer responsible for building and maintaining modern mobile applications for both iOS and Android platforms. The person in this role will collaborate closely with the project team on application architecture, implementation of new features, and performance optimization. This is a 6-month freelance contract (with a possibility of extension, though not guaranteed). Requirements: Availability starting July 1st 4+ years of commercial software development experience strong knowledge of React Native and TypeScript experience with REST API integrations understanding of App Store and Google Play release processes experience working in Agile teams good knowledge of Git Nice to have: experience with native iOS (Swift) or Android (Kotlin) development familiarity with CI/CD pipelines for mobile applications experienced in using AI tools in day-to-day workflow Responsibilities: Develop and maintain a cross-platform mobile application using React Native for iOS and Android. Implement new features based on the existing web application and business requirements. Collaborate with backend, web, QA, and product teams to ensure seamless integration and consistent user experience. Integrate REST APIs and real-time communication mechanisms. Optimize application performance, stability, and scalability. Participate in architecture discussions, code reviews, and technical decision-making. Troubleshoot, debug, and resolve application issues. Contribute to improving development standards, CI/CD processes, and overall code quality Project description: Development of a mobile application based on an existing web platform used for managing autonomous cleaning robots operating in shopping malls, airports, and other large commercial facilities. The application will support robot monitoring, task management, real-time status tracking, and operational control for end users.

🏢 Summary: Frontend-focused role developing and maintaining scalable React applications with TypeScript, integrated with Node.js backend services and data pipelines. The position involves building production-grade, data-driven solutions, contributing to architecture decisions, and optimizing complex UI workflows. It offers work on a high-impact product within a modern TypeScript and React ecosystem. 🗂️ Requirements: Strong proficiency in React, Strong proficiency in TypeScript, Experience building large-scale production applications, Experience with Node.js and API integrations, Experience with data-driven applications, Understanding of modern frontend architecture, Knowledge of testing practices, Ability to work in cross-functional teams 📃 Skills: React, TypeScript, Node.js, APIs, Microservices, Snowflake, Testing, Architecture, Data, Pipelines 🏢 Description: ✅ Your responsibilities: Develop and maintain scalable React applications with TypeScript across the full frontend stack Collaborate closely with backend engineers, data teams, and product managers to deliver high-quality solutions Ensure type safety, code quality, and maintainability throughout the application Participate in design and architecture discussions, proposing improvements to frontend patterns and integrations Troubleshoot and optimize complex UI and data-intensive workflows Support knowledge sharing and mentor junior developers when needed 🧠 Our requirements: Strong proficiency in React and TypeScript , with experience building large-scale, production-grade applications Familiarity with Node.js backend development and integration with APIs or microservices Experience working with data-driven applications , ideally with Snowflake, data lakes, or pipelines Solid understanding of modern frontend architecture, testing, and best practices Ability to communicate effectively in a cross-functional, high-stakes environment Proactive, self-motivated, and capable of delivering high-quality solutions under tight timelines 🌟 What we offer: Opportunity to work on a premium, high-profile product with global business impact Exposure to a modern TypeScript/React ecosystem, integrated with backend Node.js services and advanced data pipelines Collaborative environment with experienced engineers and product leaders Career growth and technical mentorship in a cross-functional team Competitive employment package and benefits.

🏢 Summary: Development of a cross-platform mobile application in React Native for iOS and Android integrated with IoT devices and cloud backends. The role focuses on building, integrating, and optimizing a scalable mobile app with device control, data synchronization, and secure communication. It includes testing, CI/CD automation, and performance optimization in a multi-brand, multi-language environment. 🗂️ Requirements: Minimum 4 years of experience in React Native, Minimum 5 years of experience in frontend development, Strong knowledge of cross-platform mobile development for iOS and Android, Experience integrating mobile apps with IoT devices, Experience with cloud backend integration and microservices, Experience with push notifications and data synchronization, Knowledge of mobile testing and test automation, Experience with CI/CD pipelines, Knowledge of mobile app security and data encryption, Experience with performance optimization of mobile applications, English level B2 minimum, Availability to work from office in Katowice once per week 📃 Skills: React, ReactNative, JavaScript, TypeScript, HTML, CSS, Redux, MobX, ReactNavigation, GraphQL, IoT, Microservices, CI/CD, Bitrise, GitHubActions, Fastlane, Testing, Automation, Encryption, Authentication 🏢 Description: Development of a cross-platform mobile application (iOS + Android) in React Native for end-users, integrating with the company's IoT devices. Our expectations Minimum 4 years of experience in React Native and 5+ years in general frontend development (JavaScript/TypeScript, HTML, CSS). Strong proficiency in React Native, including best practices for cross-platform mobile application development (iOS + Android). Experience in integrating mobile applications with IoT devices, including: Reading device parameters (temperature, operating modes, energy consumption, historical data). Controlling devices via the app (schedules, power on/off, operating mode settings). Data synchronization with cloud backends and handling push notifications. Ability to work with backends, microservices, and IoT platforms, including the implementation of business logic and network communication. Experience with multi-brand and multi-language applications, scalable across different markets. Knowledge of mobile and integration testing, test automation, and CI/CD (e.g., Bitrise, GitHub Actions, Fastlane). Familiarity with mobile application monitoring and debugging tools. Ability to ensure application and communication security (user authentication, data encryption, securing communication channels between the app, device, and cloud). Application performance optimization: startup time, bundle size, responsiveness, offline mode support, and connectivity issue handling. English min. B2 level Ready to work from the office in Katowice 1x/week (the team meets on Wednesday) Welcome Skills Proficiency in TypeScript, Redux / MobX, React Navigation, and GraphQL. Experience working with applications requiring high scalability and integration with cloud platforms. Knowledge of UX/UI principles specifically for mobile applications. Experience in migrating existing applications to React Native or modernizing the technology stack. Knowledge of security standards for mobile and IoT applications.

🏢 Summary: Contract role focused on leading end-to-end development of complex frontend features using TypeScript and React for large-scale enterprise applications. The position emphasizes scalable architecture, advanced state management, performance optimization, security, and integration with backend services. Involves contributing to Node.js services, CI/CD pipelines, testing strategies, and ensuring high-quality, accessible, and secure UI delivery. 🗂️ Requirements: Strong experience with TypeScript and React, Experience delivering complex frontend features end-to-end, Experience designing scalable frontend architectures, Expertise in state management libraries (Redux, Zustand, React Query), Experience integrating with APIs and BFF layers, Proficiency with Node.js, Experience with performance optimization techniques, Knowledge of WCAG and semantic HTML, Experience with secure coding practices and authentication flows, Experience with CI/CD pipelines and automated testing, Strong debugging and production issue resolution skills, Experience working in Agile environments 📃 Skills: TypeScript, React, Redux, Zustand, ReactQuery, Node.js, HTML, CSS, WCAG, CI/CD, REST, API, BFF, Testing, Jest, Cypress, Security, OAuth, PCI, Cloud, CDN 🏢 Description: Job description: * Own end-to-end delivery of complex frontend features using TypeScript and React, from design through production. * Design scalable, maintainable architectures for large enterprise applications (modularization, code splitting, performance). * Lead state management strategy (e.g., Redux, Zustand, React Query), ensuring predictable data flow and performance. * Build and integrate with APIs and BFF layers; contribute to Node.js services where needed. * Translate product and design requirements into high-quality, accessible UI (WCAG-compliant, semantic HTML, responsive CSS). * Drive performance optimization (rendering, bundle size, network usage, caching). * Establish and enforce coding standards, patterns, and best practices across the codebase. * Conduct code reviews, mentor engineers, and raise the overall engineering bar. * Apply strong, proactive debugging practices to identify, isolate, and resolve issues early across environments. * Diagnose and resolve complex production issues using structured debugging, logging, and observability tools. * Embed security best practices into development (secure coding, input validation, auth flows, data protection), and ensure compliance—especially for payment-related flows. * Collaborate with backend, SRE, security, and product teams to ensure reliable, secure, and scalable solutions. * Contribute to CI/CD pipelines, testing strategies (unit, integration, e2e), and release processes. * Participate actively in Agile ceremonies; break down work, estimate, and deliver iteratively. Nice to Have / Preferred Experience * Experience in payments domain (checkout flows, PCI considerations, transaction handling). * Full-stack exposure with Node.js, API design, and BFF patterns. * Familiarity with cloud platforms and edge/CDN strategies. * Experience with design systems and component libraries at scale. Period from: 2026-05-25 Period to: 2026-12-31

🏢 Summary: The role focuses on integrating React Native solutions into an existing native iOS/Android mobile platform, designing architecture and implementing hybrid modules within a mature codebase. The position involves bridging React Native and native layers, optimizing performance, and contributing to scalable, maintainable mobile architecture. 🗂️ Requirements: Strong commercial experience with React Native, Experience in native mobile development (iOS and/or Android), Understanding of mobile application architecture, Experience integrating React Native with native applications, Ability to implement cross-layer communication and bridging, Experience with navigation and state management, Familiarity with CI/CD processes and build tools, Focus on code quality and performance optimization 📃 Skills: React, ReactNative, JavaScript, TypeScript, iOS, Android, Swift, Kotlin, Objective-C, Java, CI/CD, Git, Xcode, Gradle 🏢 Description: We are looking for an experienced React Native Developer to support the integration of React Native solutions into an existing native mobile platform (iOS/Android). Responsibilities: Designing and implementing an architectural approach to combine React Native components with the native application Analyzing the current mobile architecture and identifying optimal integration points Implementing and developing React Native modules within the existing native codebase Ensuring scalability, performance, and maintainability of the solution Handling communication between native and React Native layers (data flow, bridging) Contributing to and optimizing build/deployment processes Maintaining high code quality and alignment with platform standards Close collaboration with iOS and Android teams to ensure smooth integration of new features Requirements: Strong knowledge of React Native with proven commercial experience Experience in native mobile development (iOS and/or Android) Solid understanding of mobile application architecture Experience integrating hybrid solutions with native applications Ability to work with navigation, state management, and cross-layer communication Familiarity with CI/CD processes and build tools Strong focus on code quality, performance, and readability Good teamwork and communication skills Nice to have: Experience working with large, existing mobile systems Knowledge of mobile performance optimization best practices Experience working in Agile environments We offer: Opportunity to work on a modern mobile platform Collaboration with an experienced development team Real impact on architecture and product direction Flexible working conditions

🏢 Summary: The offer is for a Mobile Developer responsible for building high-performing, scalable enterprise mobile applications using React Native for iOS and Android. The role covers full software development lifecycle within an Agile team, focusing on low-latency, mission-critical systems. It involves architecture, development, release management, and performance optimization of mobile applications. 🗂️ Requirements: Minimum 3 years of mobile app development experience, Commercial experience with Android and iOS development, Experience deploying apps to Google Play and App Store, Strong knowledge of React Native and its core principles, Proficiency in JavaScript and TypeScript, Experience with full mobile development lifecycle, Knowledge of ES6, ES10 and JSX, Experience with state management and routing in React Native, Experience optimizing mobile app performance and memory management, Degree in Computer Science, Engineering or related field 📃 Skills: ReactNative, JavaScript, TypeScript, Android, iOS, ES6, ES10, JSX, Jest, JUnit, Microservices, Docker, Kubernetes, Azure, SQL, NoSQL, Agile 🏢 Description: Connecting clients to markets – and talent to opportunity With 4,300 employees and over 400,000 retail and institutional clients from more than 80 offices spread across five continents, we’re a Fortune-100, Nasdaq-listed provider, connecting clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors. At StoneX, we offer you the opportunity to be part of an institutional-grade financial services network that connects companies, organizations, and investors to the global markets ecosystem. As a team member, you'll benefit from our unique blend of digital platforms, comprehensive clearing and execution services, personalized high-touch support, and deep industry expertise. Elevate your career with us and make a significant impact in the world of global finance. Corporate: Engage in a deep variety of business-critical activities that keep our company running efficiently. From strategic marketing and financial management to human resources and operational oversight, you’ll have the opportunity to optimize processes and implement game-changing policies. Responsibilities Position Purpose: We are looking for a Mobile Developer with experience in building high-performing, scalable, enterprise-grade applications. The role will focus on developing complex mobile applications build on React Native running across IOS and Android devices. You will be part of a talented engineer team that works on low-latency mission-critical applications. Roles and responsibilities include application architecture and development across full software development lifecycle from concept and design to testing, collaborating with like-minded engineers. Primary Duties will include: Primary focus on mobile development Contribute to all phases of the development lifecycle working within Agile methodology Prepare and produce releases of software components Support continuous improvement by investigating technologies and presenting for architectural review Mentor and supports engineers with technical direction and best practices Qualifications To land this role you will need: Minimum 3 years’ experience in mobile app development Experience in development of Android/iOS applications and have deployed on Google Play/App Store Strong knowledge with architecture and implementation of Android or iOS applications, experience with full mobile development life cycle Thorough understanding of React Native and its core principles Strong knowledge with JavaScript & TypeScript, virtual DOM, asynchronous programming Understanding & experience in ES6, ES10, JSX Experience working with popular libraries for networking, asynchronous, image loading, etc. In-depth knowledge with React Native framework, patterns for code reuse, state management libraries, routing architecture Experience optimizing app performance, manage memory, and reduce load times What makes you stand out: Experience with TDD/BDD, testing framework (Jest/React-testing-library/JUnit) Some experience developing distributed systems using Microservice architecture (event-based) Some experience with containerisation (Docker, Kubernetes) Some experience with cloud platforms (Azure) Knowledge of Relational Databases SQL and No-SQL databases Previous experience working with global teams Education: BS/MS degree in Computer Science, Engineering or a related subject Working Environment: Hybrid (4 days per week in office)