Senior React Native Engineer

🏢 Summary: Senior DevOps Engineer role focused on evolving and securing a GCP-based infrastructure, improving reliability and performance, and automating CI/CD and operational processes in a high-scale environment. The position involves managing global Kubernetes clusters, enhancing observability, and implementing Infrastructure as Code. It offers strong ownership and impact within a rapidly growing, cloud-native platform. 🗂️ Requirements: Solid DevOps experience in a production environment, Strong knowledge of Linux and command-line tools, Ability to write and debug code in Python and Ruby, Excellent knowledge of Docker and Kubernetes, Experience with public cloud providers (GCP preferred, AWS or Azure), Extensive experience with CI/CD tools, Experience with Infrastructure as Code using Terraform, Experience with observability and monitoring tools, Understanding of encryption principles and related protocols, Fluent English communication skills 📃 Skills: GCP, AWS, Azure, Linux, Python, Ruby, Docker, Kubernetes, Terraform, GitLab, CloudBuild, ArgoCD, Prometheus, Grafana, SSL, OpenSSH, CI/CD 🏢 Description: Senior DevOps Software Engineer (all genders) at Distribusion Technologies Distribusion is the world’s leading ground transportation marketplace and gives travellers seamless access to ground transportation online, from search to ticket purchase. We have built a cutting-edge B2B technology platform that connects bus, rail, and ferry operators in 70+ countries with the biggest online retailers, including Google Maps and Booking.com . We are shaping the future of travel and building the largest global network of transport providers and retailers. Having grown 10x in the past year, we are one of the fastest-growing startups in travel. Backed by four leading VCs (TQ Ventures, Creandum, Northzone, and Lightrock), and now, following our recent $80 m Series C, we are ready to push beyond. The role: We are searching for a talented Senior DevOps Engineer to join our Infrastructure team at Distribusion. Your main contribution will be to work on different projects aimed at improving our infrastructure’s security, reliability and overall performance by setting up new processes, creating automations and implementing new tools. Why join Distribusion now? This is actually a great time to join Distribusion and here’s why! Powered by the recent $80m Series C funding in September 2024, we've moved beyond the early startup phase where the foundations are still being laid, but at the same time, we're not yet a fully mature company where your role might be limited to making minor improvements to already established systems. Rather, Distribusion is perfectly positioned in the sweet spot – we've achieved a level of scale that presents great challenges, yet there's still ample room for making significant enhancements as an individual contributor or as a leader. Your impact and contributions will truly be valuable and meaningful! What you will do: • Work in GCP-based CD environment, evolve our infrastructure, automate/support/troubleshoot CI/CD processes, and write/fix Terraform code. • Run the Kubernetes clusters in different regions across the globe. • Ensure the organisation has observability tools, and promote observability best practices. • Engage in incident handling, software performance analysis and system tuning. • Work on automations in order to reduce operational and manual workload. • Collaborate with development teams to perform Root Cause Analysis for Post Mortems. Workplace: Fully remote or in Berlin HQ. You have: • Solid DevOps experience, ideally within a scaling start-up. • Good knowledge of Linux, including basic management tools/utilities (curl, wget, etc). • Ability to understand/write/debug code in Python, Ruby. • Excellent knowledge of Docker and Kubernetes. • Experience with public cloud services providers – GCP (preferred), AWS or Azure. • Extensive experience with CI/CD tools (GCP Cloud Build, GitLab CI, Argo CD). • Experience in observability and reliability, ideally with Prometheus and Grafana. • Experience in infrastructure as Code, preferably with Terraform. • Knowledge of basic principles of encryption and related tools/protocols/etc (SSL, OpenSSH, certificates, etc). • Fluent English communication skills. What you can expect: • You will join a fast-paced travel tech company and take on a rapidly growing industry. • You will take on ownership and responsibility from day one and have a direct impact on the success of the company. • We value agility! We’re constantly updating our tech stack and offer the best possible tools to ensure all of our in-house engineers, partners, and carriers benefit from cutting-edge, efficient solutions. • You will work with global companies - our product attracts the biggest names in travel technology, such as Booking.com , Google Maps, and national carriers like Amtrak, Deutsche Bahn, Renfe, and SNCF. • You will join an international team of talented and driven people with a clear mission. Expect your colleagues to inspire, support and challenge you every day! • We offer flexible and remote working conditions, relocation opportunities, and career growth in a small and developing company. Our impact on the society and our contribution to reducing the harm of global warming We are making ground transportation more online accessible and more convenient to use for millions of travelers. Transportation accounts for nearly 20% of global CO2 emissions, and each trip booked via Distribusion’s platform that substitutes a more polluted and congested mode of transport such as taxi, private car, or plane, directly contributes to reducing global carbon emissions. At Distribusion, we believe that diverse and inclusive teams are key to shaping the future of travel and having a positive impact on millions of travelers worldwide. Therefore, we do not discriminate on the basis of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability or gender identity. Do you want to work on a product that is used by millions of people daily with a high load, availability and scalability and most advanced technology? Come join us!

🏢 Summary: Senior Ruby Software Engineer role focused on building and scaling a high-load API platform for global ticket booking and carrier integrations. The position involves developing and maintaining Ruby-based microservices, designing robust REST APIs, and contributing to architectural decisions in a distributed system environment. Engineers work on booking orchestration, invoicing, and ticketing within a cloud-native infrastructure. 🗂️ Requirements: 5+ years of software engineering experience, Extensive experience integrating external APIs, Experience with microservices or service-oriented architecture, Strong knowledge of Kubernetes, Experience with public cloud platforms (GCP preferred), Understanding of relational and non-relational databases, Hands-on experience designing REST APIs, Fluent English (written and spoken) 📃 Skills: Ruby, Rails, Grape, REST, API, Microservices, Kubernetes, GCP, SQL, NoSQL 🏢 Description: Senior Ruby Software Engineer (f/m/x) at Distribusion Technologies Please note we are also looking for Python, Elixir and Frontend (React JS/TS) engineers so if this is more relevant you can also apply. We are the world’s leading ground transportation B2B marketplace and give passengers seamless access to ground transportation online, from search to ticket purchase ( here you can already imagine the complexity and interesting challenges tied to this ). We have built a cutting-edge B2B technology platform that connects bus, rail and ferry operators in 70+ countries with the biggest online retailers including Google Maps and Booking.com . We are shaping the future of travel and building the largest global network of transport providers and retailers. We are one of the fastest growing startups in travel, backed by two leading VCs (TQ Ventures & Lightrock), and now, following our recent $80m Series C funding, we are ready to push beyond. Why join Distribusion now? This is actually a great time to join Distribusion and here’s why! Powered by the recent $80m Series C funding in September 2024, we've moved beyond the early startup phase where the foundations are still being laid, but at the same time, we're not yet a fully mature company where your role might be limited to making minor improvements to already established systems. Rather, Distribusion is perfectly positioned in the sweet spot – we've achieved a level of scale that presents great challenges, yet there's still ample room for making significant enhancements as an individual contributor or as a leader. Your impact and contributions will truly be valuable and meaningful! The role & team We are searching for a Senior Ruby Software Engineer , to join our Engineering team. The role implies contribution to the product & technical domains of excellence in the main API product that allows big retailers to seamlessly purchase tickets from bus & rail carriers around the globe. Our team enables the functionality of a booking system, including booking orchestration, invoicing, ticketing, and more. The tech stack consists of multiple services. For smaller business domains, we use dedicated microservices in Ruby and Grape, and for the bigger ones, we have services in Ruby on Rails. What you will do: ·        Deliver high-quality Ruby code for new carrier & retailer integrations. ·        Manage and orchestrate a large number of microservices. ·        Maintain existing Ruby code. ·        Improve test coverage and quality of deliverables. ·        Contribute to system architectural decisions within the team. ·        Contribute to the development of internal tools and libraries. ·        Mentoring and guiding junior team members. Workplace: You can work fully remote or from the vibrant office in Berlin. You have: ·        5-10+ years of software engineering experience. (Please note we have technical challenges for engineers with 10+ years of experience operating at Staff/Principal level and you are also welcome to apply if you are in this category.) ·        Extensive experience integrating external APIs. ·        Experience working with microservices and/or service-oriented architecture. ·        Good understanding of Kubernetes from a software engineering perspective. ·        Experience working with public cloud providers (GCP is preferred). ·        Good understanding of relational and non-relational database principles. ·        Hands-on experience in designing robust REST APIs. ·        You show ownership and responsibility for your problem space. ·        You are fluent in English, both verbal and written. What you can expect: ·        You will join a fast-paced travel tech company and take on a rapidly growing industry. ·        You will take on ownership and responsibility from day one and have a direct impact on the success of the company. ·        We value agility! We’re constantly updating our tech stack and offer the best possible tools to ensure all of our in-house engineers, partners, and carriers benefit from cutting-edge, efficient solutions. ·        You will work with global companies - our product attracts the biggest names in travel technology, such as Booking.com , Google Maps, and national carriers like Amtrak, Deutsche Bahn, Renfe, and SNCF. ·        You will join an international team of talented and driven people with a clear mission. Expect your colleagues to inspire, support and challenge you every day! ·        We offer flexible and remote working conditions, relocation opportunities, and career growth in a small and developing company. Our impact on the society and our contribution to reducing the harm of global warming We are making ground transportation more online accessible and more convenient to use for millions of travelers. Transportation accounts for nearly 20% of global CO2 emissions, and each trip booked via Distribusion’s platform that substitutes a more polluted and congested mode of transport such as taxi, private car, or plane, directly contributes to reducing global carbon emissions. At Distribusion, we believe that diverse and inclusive teams are key to shaping the future of travel and having a positive impact on millions of travelers worldwide. Therefore, we do not discriminate on the basis of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability or gender identity. Do you want to work on a product that is used by millions of people daily with a high load, availability and scalability and most advanced technology? Come join us!

🏢 Summary: Senior Python Software Engineer role focused on building and scaling high-load systems within a B2B travel technology platform. The position involves implementing high-impact, data-intensive solutions, improving automation, and ensuring high system uptime while collaborating with Product on new features. The role offers ownership in a fast-scaling, high-availability environment. 🗂️ Requirements: Strong experience with Python, Experience with FastAPI or aiohttp, Knowledge of asynchronous programming, Understanding of parallel computing, Experience with SQL databases, indexes, and locks, Ability to design systems for high-load environments, Fluency in English 📃 Skills: Python, FastAPI, aiohttp, SQL, Docker, Kubernetes, C, C++, AsyncIO 🏢 Description: Senior Python Software Engineer (f/m/x) at Distribusion Technologies We are the world’s leading ground transportation B2B marketplace and give passengers seamless access to ground transportation online, from search to ticket purchase (here you can already imagine the complexity and interesting challenges tied to this). We have built a cutting-edge B2B technology platform that connects bus, rail and ferry operators in 70+ countries with the biggest online retailers including Google Maps and Booking.com . We are shaping the future of travel and building the largest global network of transport providers and retailers. We are one of the fastest growing startups in travel, backed by two leading VCs (TQ Ventures & Lightrock), and now, following our recent $80m Series C funding, we are ready to push beyond. The role: We are searching for a Senior Python Software Engineer, to join our Portal team. We are looking for a creative engineer that is eager to solve complex technical challenges in a high load environment, someone who can thrive with ambiguous problems rather than repetitive tasks. Why join Distribusion now? This is actually a great time to join Distribusion and here’s why! Powered by the recent $80m Series C funding in September 2024, we've moved beyond the early startup phase where the foundations are still being laid, but at the same time, we're not yet a fully mature company where your role might be limited to making minor improvements to already established systems. Rather, Distribusion is perfectly positioned in the sweet spot – we've achieved a level of scale that presents great challenges, yet there's still ample room for making significant enhancements as an individual contributor or as a leader. Your impact and contributions will truly be valuable and meaningful! What you will do: The objectives of the role are to: • (1) Successfully implement high-impact systems that can handle high volumes of data, • (2) Reduce manual workload for teams by 30% within the first year through automation, • (3) Maintain a high system uptime. • (4) Collaborate with Product in order to build new features. Workplace: Fully remote or Berlin HQ. You have: • Python experience (other languages such as C and C++ are a plus) • Frameworks: preferably FastAPI, aiohttp • Knowledge of asynchronous functions (or any experience with parallel computing) • Docker and Kubernetes (nice to have) • General understanding of SQL databases, indexes and locks • You are fluent in English, both verbal and written. What you can expect: • You will join a fast-paced travel tech company and take on a rapidly growing industry. • You will take on ownership and responsibility from day one and have a direct impact on the success of the company. • We value agility! We’re constantly updating our tech stack and offer the best possible tools to ensure all of our in-house engineers, partners, and carriers benefit from cutting-edge, efficient solutions. • You will work with global companies - our product attracts the biggest names in travel technology, such as Booking.com , Google Maps, and national carriers like Amtrak, Deutsche Bahn, Renfe, and SNCF. • You will join an international team of talented and driven people with a clear mission. Expect your colleagues to inspire, support and challenge you every day! Our impact on the society and our contribution to reducing the harm of global warming We are making ground transportation more online accessible and more convenient to use for millions of travelers. Transportation accounts for nearly 20% of global CO2 emissions, and each trip booked via Distribusion’s platform that substitutes a more polluted and congested mode of transport such as taxi, private car, or plane, directly contributes to reducing global carbon emissions. At Distribusion, we believe that diverse and inclusive teams are key to shaping the future of travel and having a positive impact on millions of travelers worldwide. Therefore, we do not discriminate on the basis of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability or gender identity. Do you want to work on a product that is used by millions of people daily with a high load, availability and scalability and most advanced technology? Come join us!

🏢 Summary: Senior Ruby Software Engineer role focused on scaling and maintaining carrier integrations within a high-load, distributed B2B travel platform. The position involves building and improving microservices, leading architectural initiatives, and enhancing system reliability and observability. Engineers contribute to API integrations, CI/CD processes, and cloud-native infrastructure in a remote-first environment. 🗂️ Requirements: 7+ years of software engineering experience, 5+ years of professional Ruby experience, Recent hands-on experience with Ruby projects, Experience with microservices or service-oriented architecture, Deep understanding of distributed systems, Experience integrating external APIs, Experience designing REST APIs, Experience creating and maintaining CI/CD pipelines, Strong knowledge of Kubernetes, Experience with public cloud platforms (GCP preferred), Strong understanding of relational and non-relational databases, Experience with observability and monitoring practices, Experience with test-driven development, Fluent English (written and spoken) 📃 Skills: Ruby, Python, JavaScript, TypeScript, Golang, Java, C, C++, C#, Kubernetes, Docker, CircleCI, GCP, PostgreSQL, Redis, Elastic, Grafana, Prometheus, Varnish, HAproxy, Nginx, TDD, REST, Microservices, CI/CD, Jira 🏢 Description: Senior Ruby Software Engineer (f/m/x) at Distribusion Technologies We are the world’s leading ground transportation marketplace and give travelers seamless access to ground transportation online, from search to ticket purchase. We have built a cutting-edge B2B technology platform that connects bus, rail and ferry operators in 70+ countries with the biggest online retailers including Google Maps and Booking.com. We are shaping the future of travel and building the largest global network of transport providers and retailers. Having grown 10x in the past year, we are one of the fastest growing startups in travel. Backed by three leading VCs (Creandum, Northzone and Lightrock), and now, following our recent €30m Series B funding, we are ready to push beyond. The role: We are looking for Senior Ruby Software Engineers to help us with our scaling effort of integrating new carriers onto the platform and improve existing integrations. What you will do: Deliver high quality Ruby code for new carrier integrations. Manage and orchestrate a large number of microservices. Understand, plan and execute maintenance of existing integrations. Lead and actively participate in efforts on systems architecture initiatives. Improve test coverage and quality of deliverables. Improve and create internal tools and libraries. Mentoring and guiding other team members. Actively participate in scaling the engineering team. Workplace: Remote/Berlin We are a remote first international company with team members spread around the world. We are looking to hire the best talent around the Globe, so wherever you are, feel free to reach out. If, however, you prefer working onsite/hybrid our heart is in Berlin, one of the biggest and most vibrant tech hubs in Europe, and we are happy to assist with relocation. You have: 7+ years of software engineering experience 5+ years of professional experience working with Ruby Experience working with Ruby projects in the recent past Proficient with at least one of the following: Python, JavaScript/TypeScript, Golang, Java, C/C++, C# Hands on experience with planning and improving observability and monitoring processes Experience with Grafana/Prometheus is a plus Experience in conducting technical recruitment interviews (nice to have) Test-driven development Extensive experience integrating external APIs Deep understanding of distributed systems principles Experience working with microservices and/or service oriented architecture Experience creating and maintaining CI/CD pipelines Deep understanding of Kubernetes from a software engineering perspective Experience working with public cloud providers (GCP is preferred) In-depth understanding of relational and non-relational databases principles Hands-on experience in designing robust REST APIs Experience with leading technical initiatives You are fluent in English, both verbal and written A view into our Tech stack: a.               Languages: Ruby b.               Cloud platforms: GCP c.               Database: PostgreSQL, Redis, Elastic d.               Testing: TDD e.               CI/CD: kubernetes, docker, circleci f.                Messaging and caching: Varnish, HAproxy, Nginx g.               Project management: Jira What you can expect: ·       You will join a fast-paced travel tech company and take on a rapidly growing industry. ·       You will take on ownership and responsibility from day one and have a direct impact on the success of the company. ·       We value agility! We’re constantly updating our tech stack and offer the best possible tools to ensure all of our in-house engineers, partners, and carriers benefit from cutting-edge, efficient solutions. ·       You will work with global companies - our product attracts the biggest names in travel technology, such as Booking.com, Google Maps, and national carriers like Amtrak, Deutsche Bahn, Renfe, and SNCF. ·       You will join an international team of talented and driven people with a clear mission. Expect your colleagues to inspire, support and challenge you every day! ·       We offer flexible and remote working conditions, relocation opportunities, and career growth in a small and developing company. Our impact on the society and our contribution to reducing the harm of global warming We are making ground transportation more online accessible and more convenient to use for millions of travelers. Transportation accounts for nearly 20% of global CO2 emissions, and each trip booked via Distribusion’s platform that substitutes a more polluted and congested mode of transport such as taxi, private car, or plane, directly contributes to reducing global carbon emissions. At Distribusion, we believe that diverse and inclusive teams are key to shaping the future of travel and having a positive impact on millions of travelers worldwide. Therefore, we do not discriminate on the basis of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability or gender identity. Do you want to work on a product that is used by millions of people daily with a high load, availability and scalability and most advanced technology? Come join us!

🏢 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: B2B contract for a Senior React Native Developer to build and maintain a white-label, multi-tenant mobile ordering platform for iOS and Android. The role focuses on developing scalable, production-grade applications with advanced mobile features and clean architecture. Initial 4-month engagement with possible extension, starting in June. 🗂️ Requirements: Minimum 3 years commercial experience with React Native and shipped production apps, Strong TypeScript skills including strict mode, generics, utility types, Deep knowledge of React Navigation and complex navigation patterns, Experience with React Native Reanimated (v2+) and gesture-based interactions, Solid knowledge of iOS and Android build systems (Gradle, Xcode, signing, schemes/flavours), Experience debugging native crashes and JS bundle issues, Proficiency with TanStack Query (or React Query), Experience with Zustand or similar state management, Ability to design and maintain typed API clients and data-fetching layer, Experience with modular or feature-based architecture, English level B2 or higher, Experience working in Agile/Scrum environments 📃 Skills: ReactNative, TypeScript, ReactNavigation, Reanimated, Zustand, TanStackQuery, iOS, Android, Gradle, Xcode, JavaScript, Scrum 🏢 Description: We are looking for an experienced Senior React Developer to join the team working on a white-label mobile ordering platform for restaurants. The product is built as a shared, multi-tenant solution, where each client receives their own fully branded mobile application powered by a common codebase. Who we are: We are Inspeerity (part of DevelopX group), engineering consultancy providing software development and consultancy. Our primary expertise is systems architecture and full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. TL;DR • Who : Senior React Native Developer • Contract Type : B2B • Salary range: Up to 150 PLN/h + VAT • Start date : from ~9th June • Term of the agreement : ~ 4 months with possibility of prolongation What you’ll be doing: Developing and maintaining production-grade mobile applications in React Native for iOS and Android platforms. Designing and implementing scalable, maintainable, and modular application architecture within a multi-tenant / white-label environment. Building advanced mobile features using TypeScript, React Navigation, Reanimated, and gesture-based interactions. Managing application state, server communication, caching, and API integrations using TanStack Query, Zustand, and typed API clients. Ensuring high code quality through clean architecture, reusable components, strong naming conventions, and maintainable code practices. Participating in agile development processes, including sprint planning, reviews, demos, and close collaboration with international stakeholders. Presenting delivered features during sprint reviews and proactively suggesting product and technical improvements. Supporting the QA process during regression testing and contributing to overall product stability and performance. You will be the best fit if you have: At least 3 years of commercial React Native experience with shipped production apps. Strong TypeScript skills - strict mode, generics, utility types. Deep understanding of React Navigation and complex navigation patterns. Experience with React Native Reanimated (v2+) and gesture-based interactions. Solid knowledge of iOS and Android build systems (schemes/flavours, signing, Gradle, Xcode). Experience debugging native crashes, JS bundle issues. Proficiency with TanStack Query (or React Query). Experience with Zustand or comparable lightweight state management. Ability to design and maintain a clean data-fetching layer with typed API clients. Experience working in a feature-based or modular architecture. Comfortable presenting your own work to stakeholders every two weeks. Proactive mindset: expected to raise observations, propose improvements, and drive initiatives - not just execute tickets. Strong problem-solving and debugging skills. English level B2 or higher. Hands-on experience working in Agile / Scrum environments. What we offer: Hybrid and flexible cooperation model based on a B2B contract. Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you! Great working conditions and best equipment. Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it.

🏢 Summary: Senior React Native Developer role focused on building and evolving a large-scale, multi-module mobile platform used by millions of users across Europe and North America. The position involves driving architectural decisions, developing complex mobile applications in React Native and TypeScript, and mentoring engineers while ensuring high performance and scalability. You will collaborate cross-functionally and contribute to CI/CD, native integrations, and continuous technical improvements. 🗂️ Requirements: 5+ years commercial software development experience, 4+ years experience with React Native, Experience building and maintaining large-scale mobile applications, Strong knowledge of TypeScript and modern JavaScript, Experience with React Hooks, Understanding of modular and multi-module architecture, Experience with MobX, Experience with React Query (TanStack Query), Knowledge of native mobile development concepts for iOS and Android, Experience integrating REST APIs, Experience with GraphQL, Experience with form management solutions, English proficiency at B2 level or higher, Polish proficiency at B2 level or higher, Residence in Poland 📃 Skills: React, ReactNative, TypeScript, JavaScript, MobX, ReactQuery, TanStackQuery, iOS, Android, REST, GraphQL, CI/CD, Firebase 🏢 Description: Join one of Europe's largest mobile platforms, delivering digital services used by millions of users across multiple countries in Europe and North America. Built on a multi-module architecture, the platform enables rapid product development, high code reusability, and continuous expansion into new business areas. As a Senior React Native Developer, you will play a key role in shaping the architecture of a big mobile ecosystem, driving technical decisions, mentoring other engineers, and delivering high-quality solutions at scale. Your tasks Design, develop, and maintain complex mobile applications using React Native and TypeScript Drive architectural decisions and contribute to the evolution of our multi-module platform Lead technical discussions and participate in solution design Review code, mentor team members, and promote engineering best practices Collaborate closely with Product Owners, UX Designers, Backend Engineers, QA Engineers, and Architects Improve application performance, reliability, scalability, and maintainability Contribute to CI/CD processes and development tooling Support the integration of native mobile capabilities and third-party services Identify technical debt and proactively drive improvements across the codebase Requirements At least 5 years of commercial software development experience, including at least 4 years with React Native Proven track record of building and maintaining large-scale mobile applications Strong expertise in TypeScript, modern JavaScript, and React Hooks Solid understanding of modular and multi-module application architecture Hands-on experience with MobX and React Query (TanStack Query) Knowledge of native mobile development concepts and creating native modules for iOS and Android Practical experience with REST APIs, GraphQL, and form management solutions English and Polish proficiency at the B2 level or higher Residing in Poland required Nice-to-have requirements Payment integrations and mobile wallet solutions Geolocation and location-based services Firebase services and analytics Mobile security best practices Observability and monitoring tools Background in large-scale international products Agile delivery experience (Scrum/Kanban) What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Senior React Native Developer role focused on building and evolving a global mobile platform with digital services and loyalty programs used by millions of users. The position involves architectural decision-making, development of complex multi-module applications, native integrations, and mentoring within the team. The offer includes long-term cooperation, access to modern technologies, and a hybrid work model in Warsaw. 🗂️ Requirements: Minimum 5 years of commercial software development experience, At least 4 years of hands-on experience with React Native, Expert knowledge of TypeScript, Strong experience with modern JavaScript, Practical experience with MobX, Knowledge of React Query or TanStack Query, Experience with React Hooks, Experience building and maintaining native modules for iOS and Android, Experience working with REST API and GraphQL, Experience with CI/CD processes, English proficiency at minimum C1 level, Availability to work in hybrid mode (2 days per week in Warsaw office) 📃 Skills: React, ReactNative, TypeScript, JavaScript, MobX, ReactQuery, TanStackQuery, REST, GraphQL, CI/CD, iOS, Android 🏢 Description: Wspólnie z naszym Partnerem z sektora paliwowo-detalicznego poszukujemy doświadczonej osoby na stanowisko Senior React Native Developer . Projekt to globalna platforma mobilna z usługami cyfrowymi i programami lojalnościowymi, z której korzystają miliony użytkowników. Jej wielomodułowa architektura pozwala na ponowne wykorzystanie kodu i szybkie wdrażanie nowych funkcji. 💡 TWOJA ROLA Projektowanie, rozwój i utrzymanie złożonych aplikacji mobilnych w oparciu o React Native oraz TypeScript . Prowadzenie przeglądów kodu, mentoring zespołu oraz promowanie dobrych praktyk inżynierskich. Podejmowanie decyzji architektonicznych i rozwój wielomodułowej platformy mobilnej. Doskonalenie wydajności, niezawodności, skalowalności i utrzymywalności aplikacji. Prowadzenie dyskusji technicznych oraz współtworzenie projektów rozwiązań. Identyfikacja długu technologicznego i inicjowanie usprawnień w bazie kodu. Integracja natywnych funkcji mobilnych oraz usług zewnętrznych. 🔍 CZEGO OCZEKUJEMY OD CIEBIE? Co najmniej 5-letnie komercyjne doświadczenie w wytwarzaniu oprogramowania, w tym minimum 4 lata praktyki z React Native . Ekspercka znajomość TypeScript i nowoczesnego JavaScript oraz rozległe doświadczenie z MobX . Dobra znajomość React Query/TanStack Query , strategii synchronizacji danych oraz React Hooks Doświadczenie w tworzeniu i utrzymaniu modułów natywnych dla iOS oraz Android . Praca w trybie hybrydowym , dwa dni w tygodniu w biurze w Warszawie. Doświadczenie z REST API , GraphQL oraz procesami CI/CD . Znajomość języka angielskiego na poziomie co najmniej C1 . ✨ OFERUJEMY 🤖 Nowoczesny proces rekrutacji z AI Rekruterem (AIR) - podczas aplikacji możesz odbyć rozmowę z wirtualnym rekruterem 24/7, bez czekania na telefon. Dostajesz natychmiastowy feedback, a finalną decyzję zawsze podejmuje Rekruter Connectis. Uczestnictwo w spotkaniach integracyjnych oraz meetupach technologicznych, umożliwiających dzielenie się wiedzą i doświadczeniem. Wsparcie dedykowanej osoby kontaktowej z Connectis, dostępnej w celu pomocy w sprawach związanych z projektem. Rozwój kariery i długofalową współpracę w firmie o ugruntowanej pozycji na rynku. Dostęp do najnowszych technologii i narzędzi pracy. 5000 PLN za polecenie znajomego do projektów. Szybki i zdalny proces. Dziękujemy za wszystkie zgłoszenia. Informujemy, że skontaktujemy się wyłącznie z wybranymi osobami. 12933/MP

🏢 Summary: Senior React Native Engineer role focused on building and scaling high-performance mobile applications using a modern tech stack. The position involves developing new features, contributing to architectural decisions, and ensuring code quality through testing and best practices. The role requires close collaboration with cross-functional teams to deliver reliable, production-ready apps. 🗂️ Requirements: 5+ years of software development experience, Strong expertise in React Native, Proficiency in JavaScript and TypeScript, Experience building production-ready mobile applications, Understanding of mobile UI/UX optimization, Experience with performance tuning, Familiarity with HTML and CSS/SASS, Basic knowledge of React, Experience with backend integration, Experience with SQL databases, Experience with API integration, Ability to write unit tests, Strong debugging and troubleshooting skills, Fluent English (B2/C1 minimum) 📃 Skills: ReactNative, JavaScript, TypeScript, HTML, CSS, SASS, React, SQL, APIs, UnitTesting, Debugging, Mobile, UI, UX, Performance, Backend 🏢 Description: Senior React Native Engineer We’re looking for an experienced Senior React Native Engineer to join our team and contribute to a new project built with a modern tech stack. If you’re motivated by creating meaningful solutions and enjoy working on impactful products, we’d love to hear from you! What you’ll do: Build and maintain mobile applications using React Native, ensuring clean, scalable, and well-documented code Develop new features and enhance existing ones for high-performance and reliable apps Participate in architectural discussions and technical decision-making Write and maintain unit tests to guarantee code quality and stability Collaborate closely with product managers, designers, and stakeholders to deliver impactful solutions Review peers’ code, provide feedback, and encourage engineering best practices What you bring: 5+ years of professional experience in software development, with strong expertise in React Native Solid knowledge of JavaScript/TypeScript and proven experience building production-ready apps Understanding of mobile UI/UX optimization and performance tuning Familiarity with HTML, CSS/SASS , and cross-platform design principles Basic knowledge of React , and backend stack Experience with SQL databases and API integration Strong debugging, problem-solving, and troubleshooting skills Excellent collaboration skills and ability to work in an international team Fluent English (B2/C1 level minimum) Benefits: multisport medical care insurance remote work

🏢 Summary: Senior React Native Developer role focused on evolving and optimizing a mobile mobility application, improving user journeys and conversion rates. The position involves end-to-end feature ownership, performance optimization, and expansion of the app using the Expo ecosystem. It requires close collaboration with cross-functional teams and contribution to technical decisions and mobile roadmap direction. 🗂️ Requirements: 8–10+ years of software development experience, 5+ years of experience with React Native, Strong proficiency in JavaScript, Strong proficiency in TypeScript, Hands-on experience with Expo, Experience with state management libraries (Zustand, Redux, or MobX), Understanding of GraphQL APIs, Understanding of REST APIs, Experience building complex, scalable mobile applications, Experience working in cross-functional product teams 📃 Skills: React, ReactNative, JavaScript, TypeScript, Expo, Zustand, Redux, MobX, GraphQL, REST, APIs 🏢 Description: Role Overview We are looking for a Senior React Native Developer to a team focused on evolving the mobile experience of a mobility application. You will play a key role in optimizing user journeys, improving conversion rates, and enhancing existing features while contributing to the expansion into new markets. Key Responsibilities Design, build, and maintain high-performance, scalable, and reusable React Native applications. Optimize application performance, quality, and responsiveness. Own the end-to-end development of features within the conversion domain. Continuously discover, evaluate, and implement new technologies (with strong emphasis on Expo ecosystem). Collaborate closely with cross-functional teams (1 BE developer, 1 designer, FE team). Break down business goals into iterative, deliverable development steps. Communicate progress, blockers, and technical decisions effectively. Contribute to technical decision-making and mobile roadmap direction. Must Have Requirements 8–10+ years of software development experience. 5+ years building complex React Native applications. Strong proficiency in JavaScript / TypeScript. Hands-on experience with Expo (critical requirement). Strong expertise in state management (preferably Zustand, but Redux/MobX also acceptable). Solid understanding of GraphQL and REST APIs. Experience working in cross-functional product teams. Strong communication skills and proactive, ownership-driven mindset. Nice to Have Experience with automated testing frameworks. Familiarity with offline storage solutions. Experience optimizing conversion funnels or user journeys in mobile apps. Other Details: This position allows for remote work from Romania and is suited for individuals ready to take on new challenges in a dynamic environment.