Senior React Native Engineer

🏢 Summary: The offer is for an experienced Mobile Engineer to develop and iterate on a React Native mobile application in close collaboration with product teams, contributing to impactful solutions in the legal services domain. The role involves building and maintaining production-ready mobile apps with a strong focus on code quality and technical design. It is a fully remote B2B opportunity with mentorship support. 🗂️ Requirements: BSc in Computer Science, Software Engineering or related field, Minimum 5 years of experience in JavaScript, Minimum 5 years of experience in React Native, Experience with GraphQL, Experience with automatic testing frameworks, Published mobile applications in App Store or Google Play 📃 Skills: JavaScript, React, ReactNative, GraphQL, Node, Testing, iOS, Android 🏢 Description: We are looking for an experienced Mobile Engineer who is passionate about technology, is capable of breaking down complex problems, and has a strong will to get things done. You will be part of the team working closely with product and various functions in the company to rapidly iterate on our product and find the best solutions. Join us as we disrupt the legal services industry, if you want to apply your coding and tech design skills to make a significant positive impact on people during their key life events. Requirements: BSc in Computer Science, Software Engineering or related field At least 5 years of experience in JavaScript, React Native – a must Experience with GraphQL Experience with Node- nice to have Experienced with automatic testing frameworks Developing apps that are currently in the App Store or Google Play Offer: Cooperation based on a B2B contract. 100% remote work. The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card).

🏢 Summary: Mobile Engineer role focused on building and maintaining a React Native application for field inspection and compliance management, featuring offline-first workflows, Bluetooth integrations, real-time synchronization, and secure data handling. The position involves full lifecycle mobile development, AI-assisted coding practices, and automated CI/CD in a collaborative, agile environment. The offer emphasizes performance, scalability, and high code quality for production-grade Android and iOS apps. 🗂️ Requirements: 3+ years experience with React Native for Android and iOS, Strong knowledge of JavaScript and TypeScript, Experience with Redux Saga and Redux Thunk, Experience with React Navigation, Experience with SQLite and encrypted storage, Experience integrating Firebase, Familiarity with Xcode and Gradle, Experience with CI/CD pipelines, Experience publishing apps to App Store and Google Play, Experience with Jest and React Native Testing Library, Use of AI coding tools (e.g. GitHub Copilot, Devin, Windsurf), Intermediate or higher English level 📃 Skills: ReactNative, JavaScript, TypeScript, ReduxSaga, ReduxThunk, ReactNavigation, SQLite, Firebase, Xcode, Gradle, GitHubActions, Fastlane, Jest, ReactNativeTestingLibrary, SonarQube, Appium, Bluetooth, NewRelic 🏢 Description: We are looking for a Mobile Engineer who is passionate about building reliable, user-focused applications used in real-world operational environments. You will work on a mobile platform for field inspection and compliance management in the food service and hospitality industry, contributing to features such as offline-first workflows, Bluetooth-connected sensor integrations, real-time data synchronization, and digital audit processes. This role offers the opportunity to work on meaningful technical decisions in a collaborative engineering environment focused on performance, usability, and scalability. The application includes capabilities such as encrypted local storage, cloud CRM synchronization, document signing, photo and file management, PDF generation, push notifications, and mobile monitoring tools for crash reporting and performance tracking. CI/CD processes are fully automated using GitHub Actions, including linting, testing, SonarQube analysis, and deployments to TestFlight and Google Play. You will join a cross-functional team consisting of an Engineering Manager, ADC, Tech Lead, Back-End Developers, Front-End Developer, and Mobile Developers, working together in an agile and collaborative setup. We follow a remote-first setup with no mandatory regular office visits for this position. From time to time, you may be invited to join in-person meetings in one of our offices (Warsaw, Lodz, Wroclaw, Gdansk, or Bialystok), for example for client visits or team reunions. Must have: 3+ years of experience in creating React Native mobile solutions for Android and iOS Strong communication and team player skills Solid knowledge of JavaScript, TypeScript, React Native, React Native components, Redux Saga, Redux Thunk , React navigation SQLite and Encrypted Storage Strong skills in creating flexible user interfaces and custom views Experience integrating Firebase Familiarity with native build tools: Xcode, Gradle Experience with CI/CD pipelines: GitHub Actions, Fastlane Experience publishing apps to the Apple App Store and Google Play Console Jest + React Native Testing Library for unit/integration Demonstrated AI-first mindset: regular, structured use of agentic AI tools such as GitHub Copilot, Devin, or Windsurf Written and spoken English at intermediate level or higher Nice to have: Experience with New Relic mobile monitoring and performance observability Knowledge of SonarQube Experience with Appium or other E2E mobile testing frameworks Experience with Bluetooth integrations or custom native modules Web development experience (React.js, Node.js) Proven use of AI for non-trivial tasks — feature scaffolding, refactoring, test generation, or workflow automation Your responsibilities Engineering and development of mobile using modern technology stack Applying an AI-first development approach using agentic coding tools in day-to-day work Taking part in full app development lifecycle and actively influencing all phases as well as UI/UX design considerations Close cooperation with our clients including daily standups/retros/refinements Ensuring code quality through unit testing, static analysis and peer code reviews Sharing knowledge and experience within the team and Mobile Division

🏢 Summary: B2B contract role for a Senior Full-Stack Engineer to build and own features end-to-end, from Java/Spring backend services and data models to React-based frontend interfaces. The position involves contributing to shared UI components and backend architecture, performing cross-stack code reviews, and working in a cloud-native environment. 🗂️ Requirements: Strong backend experience with Java 21, Proficiency in Spring and Spring Boot, Experience with Hibernate, Solid frontend experience with JavaScript and TypeScript, Strong knowledge of React and Redux Toolkit, Good understanding of relational databases, especially MariaDB, User-level or higher Linux skills, Confident use of Git workflows, Ability to write well-tested, maintainable code, Advanced technical English, Experience with Kubernetes and cloud-native platforms, Ability to effectively use AI coding assistants and LLM tools 📃 Skills: Java, Spring, SpringBoot, Hibernate, JavaScript, TypeScript, React, Redux, MariaDB, SQL, Linux, Git, Kubernetes, AI, LLM 🏢 Description: Join our client's team as a Senior Full-Stack Engineer! RESPONSIBILITIES Own features end-to-end — from API and data model on the backend to the UI on the frontend Build and maintain backend services in Java, and rich interfaces in React Contribute to our shared UI component library and backend architecture alike Take part in code reviews across the stack — backend, frontend, and the glue in between REQUIREMENTS Strong backend skills in Java 21 with Spring / Spring Boot and Hibernate Solid frontend experience with JavaScript, TypeScript, React, and Redux Toolkit Good grasp of relational databases, especially MariaDB Linux skills at user level or above, plus confident Git workflows You write well-tested, maintainable code on both sides of the stack Advanced technical English for design, review, and documentation\ Proven experience with cloud-native platforms such as Kubernetes Comfortable using AI tools (coding assistants, LLMs) as part of your daily workflow — and the judgment to know when to trust them and when to think for yourself NICE TO HAVE Experience building software for telecommunication systems Knowledge of protocols like IPv4/6, DNS, BGP, DHCP, SR, and ZTP Data visualization libraries — Cytoscape.js, react-chartjs-2, MapLibre, or similar Storybook, mono-repo tooling (Lerna), or Webpack experience Automation tools such as Ansible or Terraform Understanding of Linux and Kubernetes networking (routing, iptables, CNI) WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 160-180 PLN/hour Hybrid work from Kraków (1 times a week in the office) The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client Events and integration meetings, as well as participation in various initiatives, e.g., sports Access to the benefits offering (medical care, Multisport card) WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Karolina Kizowska Senior IT Delivery Consultant karolina.kizowska@speedapp.pl +48 608 487 448

🏢 Summary: B2B Software Engineer role focused on building and enhancing frontend applications with Angular and Flutter while supporting backend services in C#/.NET and SQL. The position involves developing RESTful APIs, ensuring application security and performance, and working in Agile sprints within a mostly remote setup. The role combines cross-platform development with backend integration and modern DevOps practices. 🗂️ Requirements: 3+ years of software development experience, Strong knowledge of Angular and Flutter, Strong knowledge of HTML, CSS, TypeScript, JavaScript, Experience with C#/.NET, Experience with SQL Server, Experience with NoSQL databases, Experience designing and implementing RESTful APIs, Experience with Git, Experience working in Agile methodologies, Ability to perform unit testing and debugging 📃 Skills: Angular, Flutter, HTML, CSS, TypeScript, JavaScript, C#, .NET, SQL, SQLServer, NoSQL, REST, Git, Agile, Azure, AWS, AzureFunctions, AzureDevOps, CI/CD, OAuth, JWT, IdentityServer, Ionic, Cordova 🏢 Description: Join a client’s company as a Software Engineer, working on frontend development with Angular and Flutter, supporting backend services with C#/.NET and SQL, and collaborating on user-friendly applications. RESPONSIBILITIES Develop, maintain, and enhance applications using Angular and Flutter Support backend development with C#/.NET and SQL Design and implement RESTful APIs and integrate them with frontend applications Ensure application security , performance , and scalability Perform unit testing , debugging, and participate in code reviews Collaborate in Agile sprints , contributing to planning, development, testing, and deployment Work closely with the Product team to translate requirements into technical solutions Stay up to date with emerging technologies and suggest process improvements REQUIREMENTS 3+ years of software development experience Strong knowledge of Angular , Flutter , HTML , CSS , TypeScript , and JavaScript frameworks Experience with C#/.NET and SQL Server (plus NoSQL) Familiarity with Git and Agile methodologies Strong problem-solving skills and attention to detail Excellent communication and teamwork skills A proactive mindset and eagerness to learn new technologies NICE TO HAVE Experience with Ionic or Cordova Knowledge of Azure or AWS cloud platforms Familiarity with Azure Functions, Azure DevOps, and CI/CD pipelines Experience with authentication frameworks (OAuth, JWT, IdentityServer) Interest in cross-platform development WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 90-100 PLN/hour / Cooperation based on a B2B contract. Hybrid work: (90% remote) from Kraków (1-2 times a month in the office). The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Ilona Wójcik Junior IT Delivery Consultant ilona.wojcik@speedapp.pl +48 882 842 363

🏢 Summary: The offer is for a .NET Developer to design and build high-scale, internet-facing solutions in the travel-tech domain, focusing on a new .NET 8 architecture powering hotel booking platforms used by millions of users. The role covers end-to-end development, deployment, and production support in large-scale environments. It emphasizes performance, scalability, and high engineering standards within a collaborative team. 🗂️ Requirements: 4–5+ years commercial experience with .NET Core and C#, Strong knowledge of OOP, design patterns, algorithms, data structures, Experience building and deploying end-to-end solutions for internet-scale systems, Good understanding of SQL Server and Redis, Experience with containers and Kubernetes, Ability to ensure performance, reliability, scalability in production environments, Fluent English (written and spoken), CS/Engineering degree or equivalent practical experience 📃 Skills: C#, .NET, .NETCore, .NET8, SQLServer, Redis, Kubernetes, Containers, OOP, DesignPatterns, Algorithms, DataStructures 🏢 Description: Join a global B2C travel-tech team and build high-scale solutions that power smarter, more personalized hotel booking experiences for millions of users. RESPONSIBILITIES Design and develop a new architecture in .NET 8 for high-scale products. Build and evolve platform infrastructure used by millions of travelers ежедневно. Deliver end-to-end solutions: design, implementation, deployment, and production support. Collaborate with the team in a culture of transparency, continuous improvement, and innovation. Ensure performance, reliability, and scalability in large-scale production environments. Maintain high engineering standards: clean code, testing, documentation, and best practices. REQUIREMENTS 4–5+ years of commercial experience with .NET Core / C# . Strong CS fundamentals: OOP , design patterns, algorithms, data structures. Hands-on experience building and deploying end-to-end solutions for internet-scale problems. Good understanding of SQL Server and Redis . Experience with containers and Kubernetes . Strong communication skills, initiative, and teamwork mindset. High level of English (written and spoken). Education: CS/Engineering degree or equivalent practical experience. NICE TO HAVE Experience with NoSQL (e.g., Elasticsearch ). Experience with CI/CD . Background in large-scale production environments. WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract. Hybrid work from Warsaw (2 times a week in the office). The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Adrianna Rudzka Junior IT Delivery Consultant adrianna.rudzka@speedapp.pl +48 884 271 647

🏢 Summary: Backend Developer role focused on building and maintaining scalable microservices-based web platforms for international projects. The position involves designing and developing high-performance REST APIs, implementing new features, optimizing application performance, and ensuring code quality through testing and reviews. The engineer will have real impact on system architecture and technical direction. 🗂️ Requirements: Minimum 5 years commercial experience with Node.js, Strong knowledge of Express.js, Strong knowledge of NestJS, Solid knowledge of TypeScript, Experience with SQL databases, Experience with ORM tools (e.g. TypeORM), Experience designing and implementing REST API, Knowledge of SOLID principles and design patterns, Experience with unit and E2E testing (e.g. Jest), Proficiency with Git, Experience with Docker and containerization, Experience with microservices architecture, English level B2 or higher 📃 Skills: Node.js, Express.js, NestJS, TypeScript, SQL, TypeORM, REST, SOLID, Jest, Git, Docker, Microservices, AWS, Azure, GCP, Prometheus, Grafana, ELK, CI/CD, GitLabCI, GitHubActions, Jenkins, GraphQL 🏢 Description: Dołącz do zespołu klienta z branży technologicznej i twórz nowoczesne, skalowalne rozwiązania backendowe wykorzystywane w projektach o międzynarodowym zasięgu. Będziesz mieć realny wpływ na architekturę systemów oraz kierunek ich dalszego rozwoju. ZADANIA Rozwój i utrzymanie backendu platformy webowej opartej o architekturę mikroserwisową, której celem jest zapewnienie wysokiej wydajności, stabilności i skalowalności. Praca nad usługami obsługującymi dużą liczbę użytkowników z różnych krajów. Projektowanie i rozwijanie REST API. Implementacja nowych funkcjonalności zgodnie z wymaganiami biznesowymi i technicznymi. Utrzymanie istniejącego kodu, debugowanie oraz rozwiązywanie problemów produkcyjnych. Monitorowanie wydajności aplikacji i optymalizacja jej działania. Tworzenie i utrzymywanie testów jednostkowych oraz end-to-end. Udział w code review i dbanie o wysoką jakość kodu. Tworzenie i aktualizacja dokumentacji technicznej. Aktywny udział w spotkaniach zespołowych (daily, planowanie, refinement). Wsparcie zespołu w estymacjach projektowych i działaniach biznesowych. Mentoring młodszych programistów i dzielenie się wiedzą. WYMAGANIA Minimum 5 lat komercyjnego doświadczenia w tworzeniu aplikacji backendowych z wykorzystaniem Node.js . Bardzo dobra znajomość frameworków Express.js oraz NestJS . Solidna znajomość TypeScript . Doświadczenie w pracy z bazami danych SQL oraz ORM (np. TypeORM ). Praktyczne doświadczenie w projektowaniu i implementacji REST API . Znajomość zasad SOLID i wzorców projektowych. Doświadczenie w pisaniu testów jednostkowych i E2E (np. Jest ). Dobra znajomość GIT jako systemu kontroli wersji. Doświadczenie w pracy z Dockerem i konteneryzacją aplikacji. Znajomość architektury mikroserwisowej i doświadczenie w projektach opartych o mikroserwisy. Umiejętność pracy zespołowej, komunikatywność i otwartość na feedback. Samodzielność, proaktywność oraz chęć rozwoju i podnoszenia kwalifikacji. Znajomość języka angielskiego na poziomie minimum B2 . Wykształcenie wyższe techniczne (informatyka lub pokrewne) będzie dodatkowym atutem. MILE WIDZIANE Doświadczenie w pracy z chmurą (AWS, Azure, GCP). Znajomość narzędzi do monitoringu i obserwowalności (np. Prometheus, Grafana, ELK). Doświadczenie z CI/CD (GitLab CI, GitHub Actions, Jenkins). Znajomość GraphQL. Doświadczenie w pracy w projektach o dużej skali i wysokiej dostępności (high availability). Doświadczenie w branżach takich jak fintech, e-commerce, healthcare lub SaaS. CO OFERUJEMY NA TYM PROJEKCIE? Współpracę w oparciu o umowę B2B. Pracę 100% zdalną. Wsparcie dedykowanego opiekuna. Po dołączeniu do speedapp, otrzymasz kontakt do dedykowanego opiekuna, który zadba, aby współpraca z nami oraz z klientem sprawiała Ci satysfakcję. Wydarzenia oraz spotkania integracyjne, a także udział w różnych inicjatywach np. sportowych. Dostęp do oferty benefitów (opieka medyczna, ubezpieczenie na życie, karta Multisport). JAK WYGLĄDA REKRUTACJA? Zgłoszenie: Zaaplikuj i prześlij swoje CV. Po weryfikacji aplikacji rekruter skontaktuje się telefonicznie z wybranymi kandydatami. Screening: Porozmawiaj z rekruterem speedapp o Twoim doświadczeniu. Kolejne etapy: Rekruter speedapp przedstawi Ci jak wygląda proces rekrutacji na dane stanowisko. Rekruter speedapp pozostanie z Tobą w kontakcie podczas całego procesu. O SPEEDAPP W speedapp wierzymy, że organizacja jest tak dobra jak tworzący ją ludzie. Jesteśmy zespołem ekspertów IT i innych specjalistów pracujących dla naszych klientów na całym świecie (m.in Izrael, Austria, USA). Wykraczamy daleko poza kategorię HR. Budujemy zespoły IT, a także pomagamy w ich zarządzaniu. 👉 10 lat doświadczenia 👉 +100 klientów na całym świecie +300 zatrudnień rocznie 💎 Jesteśmy laureatem prestiżowej nagrody Diamenty Forbes cztery lata z rzędu (2022, 2023, 2024, 2025), członkiem sieci Fast Growth Icons oraz FinTech Poland. MASZ PYTANIA? Skontaktuj się bezpośrednio z rekruterem odpowiedzialnym za ten proces. Adrianna RudzkaJunior IT Delivery Consultantadrianna.rudzka@speedapp.pl +48 884 271 647

🏢 Summary: B2B contract role for a Senior Frontend Developer to architect and build advanced single-page applications in the banking domain. The position focuses on frontend architecture, performance optimization, and integration with backend services using modern web technologies. Hybrid work model with collaboration across cross-functional teams. 🗂️ Requirements: Strong experience with HTML, Strong experience with CSS, Strong experience with JavaScript, Strong experience with TypeScript, Hands-on experience with Web Components, Hands-on experience with Lit, Good knowledge of Node.js, Knowledge of npm ecosystem, Experience with Vitest or similar testing frameworks, Experience integrating REST APIs, Experience integrating GraphQL APIs 📃 Skills: HTML, CSS, JavaScript, TypeScript, WebComponents, Lit, Node.js, npm, Vitest, REST, GraphQL 🏢 Description: We are looking for a Senior Frontend Developer for our client in the banking industry RESPONSIBILITIES Architect and implement advanced user interfaces and single-page applications using TypeScript and JavaScript Define and promote best practices for frontend architecture, state management and reusable components Optimize application performance, including load times and Core Web Vitals, ensuring smooth user experience across devices Collaborate closely with backend developers, UX/UI designers, and product managers Integrate frontend applications with REST and GraphQL APIs Ensure code quality through testing and participation in development lifecycle processes REQUIREMENTS Strong experience with HTML, CSS, JavaScript, and TypeScript Hands-on experience with Web Components / Lit Good knowledge of Node.js and npm ecosystem Experience with testing frameworks such as Vitest NICE TO HAVE Experience with CI/CD pipelines Familiarity with Kafka Knowledge of NinjaFork Experience working with messaging systems (MQ) WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 110-120 PLN/hour Hybrid work from Warsaw / Łódź / Gdynia / Gdańsk (3 times a week in the office) The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client Events and integration meetings, as well as participation in various initiatives, e.g., sports Access to the benefits offering (medical care, Multisport card) WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch.

🏢 Summary: B2B role to design and build high-scale infrastructure and platform solutions in .NET 8 for a global travel-tech product used by millions of users. The position focuses on developing a new architecture and delivering end-to-end solutions for internet-scale systems in a fast-paced environment. 🗂️ Requirements: 5+ years of commercial experience with .NET Core and C#, Strong foundation in computer science, Proficiency in object-oriented design, Knowledge of design patterns, Knowledge of algorithms and data structures, Experience designing end-to-end internet-scale solutions, Experience with large-scale production environments, Good understanding of SQL Server, Good understanding of Redis, Fluent English (written and verbal) 📃 Skills: .NET, C#, SQL, SQLServer, Redis, OOP, DesignPatterns, Algorithms, DataStructures 🏢 Description: Join the client's team in the travel-tech industry. RESPONSIBILITIES In this role, the infrastructure and platform used daily by millions of travelers worldwide will be designed and built. The focus is on full transparency, continuous improvement, innovation, and maximizing the use of technology. The team will be responsible for designing and developing a new architecture in .NET 8 to support high-scale products. REQUIREMENTS A solid foundation in computer science and strong competencies in object-orienteddesign, design patterns, algorithms, and data structures, with solid developmentexperience in .NET Core / C# - At least 5+ years experience. Thrive in a fast-paced environment, able to adapt and learn new technologies quickly. Hands-on experience designing, developing, and deploying end-to-end solutions for internet-scale problems. Good understanding of SQL Server and Redis. Experience with large-scale production environments. Excellent communication skills, initiative, and teamwork. High level of communication skills (written and verbal) in English NICE TO HAVE Experience in travel tech. Working with CI/CD is an advantage. Experience with containers and Kubernetes. Experience with NoSQL databases (like Elasticsearch) WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract. Hybrid work from Warsaw (2 times a week in the office). The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Aleksandra Mazur Senior IT Research Consultant aleksandra.mazur@speedapp.pl +48 728 360 029

🏢 Summary: B2B offer for a Mid/Senior Java Developer to design, develop and maintain a complex insurance system within an agile Scrum team. The role focuses on backend development, solution design, quality assurance and supporting deployments in a DevOps-oriented environment. Hybrid work model with participation in iterative releases and technical reviews. 🗂️ Requirements: Minimum 4 years of experience as Java/JEE Developer, Knowledge of GIT, Experience with Spring framework, Experience with Hibernate, Knowledge of relational databases, Strong SQL skills, Experience with Oracle or PostgreSQL, Experience with Gradle or Maven, Knowledge of OOP principles, Knowledge of multithreading 📃 Skills: Java, JEE, GIT, Spring, Hibernate, SQL, Oracle, PostgreSQL, Gradle, Maven, OOP, Multithreading, GOSU, Kafka, RabbitMQ, Docker, Kubernetes, Helm, JavaScript, TypeScript, RxJS, HTML5, TDD, BDD 🏢 Description: Dołącz do dynamicznego zespołu klienta z branży ubezpieczeniowej! ZADANIA Współtworzenie i programowanie w złożonym systemie ubezpieczeniowym Współudział w opracowaniu koncepcji rozwiązania dla inicjatyw biznesowych Utrzymywanie i aktualizacja repozytorium dokumentacji technicznej systemów informatycznych Zapewnienie właściwej jakości wytwarzanego oprogramowania i zgodności ze standardami Zapewnienie jakości wytwarzanych produktów, wsparcie testów akceptacyjnych oraz wdrożenia rozwiązania Udział w planowaniu kolejnych wydań oraz iteracji w ramach prac zespołu zwinnego Udział w/prowadzenie review oraz retrospective zespołu w ramach iteracji i wydania Projektowanie rozwiązań implementowanych w zespole zwinnym Implementację rozwiązań przyjętych do realizacji przez zespół Wsparcie w stabilizacji i utrzymaniu wdrożonych rozwiązań WYMAGANIA Znajomość GIT Min. 4-letnie doświadczenia na stanowisku programisty Java/JEE Otwartość na pracę w dojrzałym zespole scrumowym, eksperymentowanie z nowymi technologiami i pracę w duchu DevOps Znajomość frameworków Spring i Hibernate Znajomość relacyjnych baz danych i SQL ze szczególnym uwzględnieniem bazy Oracle/PostgreSQL Znajomość narzędzi do automatyzacji procesu budowania oprogramowania Gradle lub Maven Znajomość zasad OOP i zagadnień dotyczących programowania wielowątkowego MILE WIDZIANE Doświadczenie w programowaniu w języku GOSU lub otwartość na jego naukę Design patterns Znajomość podejść TDD, BDD Kafka/Rabbit MQ Znajomość Docker, K8S, helm JavaScript, TypeScript, RxJS, HTML5 CO OFERUJEMY NA TYM PROJEKCIE? Współpracę w oparciu o umowę B2B. Pracę hybrydową (1 raz w tygodniu w biura) w Warszawie. Wsparcie dedykowanego opiekuna. Po dołączeniu do speedapp, otrzymasz kontakt do dedykowanego opiekuna, który zadba, aby współpraca z nami oraz z klientem sprawiała Ci satysfakcję. Wydarzenia oraz spotkania integracyjne, a także udział w różnych inicjatywach np. sportowych. Dostęp do oferty benefitów (opieka medyczna, ubezpieczenie na życie, karta Multisport). JAK WYGLĄDA REKRUTACJA? Zgłoszenie : Zaaplikuj i prześlij swoje CV. Po weryfikacji aplikacji rekruter skontaktuje się telefonicznie z wybranymi kandydatami. Screening : Porozmawiaj z rekruterem speedapp o Twoim doświadczeniu . Kolejne etapy: Rekruter speedapp przedstawi Ci jak wygląda proces rekrutacji na dane stanowisko. Rekruter speedapp pozostanie z Tobą w kontakcie podczas całego procesu. O SPEEDAPP W speedapp wierzymy, że organizacja jest tak dobra jak tworzący ją ludzie. Jesteśmy zespołem ekspertów IT i innych specjalistów pracujących dla naszych klientów na całym świecie (m.in Izrael, Austria, USA). Wykraczamy daleko poza kategorię HR. Budujemy zespoły IT, a także pomagamy w ich zarządzaniu. 👉 10 lat doświadczenia 👉 +100 klientów na całym świecie +300 zatrudnień rocznie 💎 Jesteśmy laureatem prestiżowej nagrody Diamenty Forbes cztery lata z rzędu (2022, 2023, 2024, 2025), członkiem sieci Fast Growth Icons oraz FinTech Poland. MASZ PYTANIA? Skontaktuj się bezpośrednio z rekruterem odpowiedzialnym za ten proces. Ilona Wójcik Junior IT Delivery Consultant ilona.wojcik@speedapp.pl +48 882 842 363

🏢 Summary: Offer for a Senior Front-End Developer to develop and modernize a key internal web system in the financial-insurance sector. The role focuses on Angular-based architecture modernization, implementation of new features, performance optimization, and technical leadership within a small team. Responsibilities include technical decision-making, mentoring, code reviews, and ensuring system stability, security, and scalability. 🗂️ Requirements: Minimum 5 years commercial experience as Front-End Developer, Minimum 3 years experience building web or mobile applications, Minimum 2 years experience working in Agile/Scrum, Very good knowledge of Angular, Very good knowledge of TypeScript and JavaScript (ES6+), Knowledge of HTML5, CSS3, SCSS and CSS architectures, Knowledge of RxJS, Experience with Git, Node.js and npm, Knowledge of HTTP protocol and REST and WebSockets integration, Experience with unit testing (Jest or Vitest), Knowledge of Webpack or Vite, Experience with microfrontends (Module Federation, Web Components), Higher education degree in Computer Science or related field, English proficiency for working with technical documentation 📃 Skills: Angular, TypeScript, JavaScript, HTML5, CSS3, SCSS, RxJS, Git, Node.js, npm, HTTP, REST, WebSockets, Jest, Vitest, Webpack, Vite, ModuleFederation, WebComponents, AngularMaterial, Agile, Scrum 🏢 Description: Dołącz do zespołu klienta z branży finansowo-ubezpieczeniowej i rozwijaj kluczowy system webowy wspierający procesy biznesowe organizacji. ZADANIA Będziesz pracować nad rozwojem i utrzymaniem rozbudowanego systemu webowego, wykorzystywanego wewnętrznie do obsługi procesów operacyjnych i biznesowych. Projekt obejmuje modernizację architektury front-endowej, wdrażanie nowych funkcjonalności oraz poprawę wydajności i jakości kodu. Zespół: Kameralny zespół projektowy, w tym 2 developerów Front-End Ścisła współpraca z architektem systemu oraz zespołami backend i QA Głównym celem zespołu jest zapewnienie stabilności, bezpieczeństwa i skalowalności systemu oraz rozwój nowych funkcji Zakres odpowiedzialności: Techniczny mentoring i wsparcie dla developerów Front-End Podejmowanie decyzji technicznych oraz projektowanie rozwiązań Współpraca z architektem systemu w zakresie kierunków rozwoju technologicznego Projektowanie zmian z uwzględnieniem bezpieczeństwa danych, jakości architektury i ciągłości działania Implementacja nowych funkcjonalności zgodnie ze standardami i dobrymi praktykami Przeglądy kodu (code review) Identyfikacja i redukcja długu technologicznego, inicjowanie refaktoryzacji Wsparcie przy wdrożeniach oraz rozwiązywanie problemów technicznych Analiza błędów i optymalizacja wydajności systemu Estymacja pracochłonności zmian WYMAGANIA Doświadczenie i kompetencje techniczne: Minimum 5 lat doświadczenia komercyjnego jako Front-End Developer Minimum 3 lata doświadczenia w tworzeniu aplikacji webowych lub mobilnych Minimum 2 lata doświadczenia w pracy w metodykach zwinnych (Agile/Scrum) Bardzo dobra znajomość Angular (komponenty, moduły, serwisy, DI, routing, formularze, lazy loading, optymalizacja) Znajomość Angular Material lub innej biblioteki UI Bardzo dobra znajomość TypeScript oraz JavaScript (ES6+) Znajomość HTML5, CSS3, SCSS oraz architektur CSS Znajomość RxJS Doświadczenie z Git, Node.js, npm Znajomość protokołu HTTP oraz integracji REST i WebSockets Doświadczenie w testach jednostkowych (Jest lub Vitest) Znajomość narzędzi bundlujących (Webpack lub Vite) Doświadczenie z mikrofrontendami (Module Federation, Web Components) Dodatkowo: Znajomość dobrych praktyk programistycznych i procesu wytwarzania oprogramowania Znajomość wzorców projektowych i architektonicznych Umiejętność podejmowania decyzji technicznych i mentoringu zespołu Komunikatywność i umiejętność pracy zespołowej Znajomość języka angielskiego umożliwiająca pracę z dokumentacją techniczną Wykształcenie wyższe informatyczne lub pokrewne MILE WIDZIANE Znajomość standardów dostępności (WCAG) oraz RWD Wiedza z zakresu Web Performance Doświadczenie z CI/CD (np. Jenkins) Znajomość Service Workers i Web Push API Podstawowa znajomość Docker i Kubernetes CO OFERUJEMY NA TYM PROJEKCIE? Współpracę w oparciu o umowę B2B. Pracę hybrydową z Warszawy (1 razy w tygodniu w biura). Wsparcie dedykowanego opiekuna. Po dołączeniu do speedapp, otrzymasz kontakt do dedykowanego opiekuna, który zadba, aby współpraca z nami oraz z klientem sprawiała Ci satysfakcję. Wydarzenia oraz spotkania integracyjne, a także udział w różnych inicjatywach np. sportowych. Dostęp do oferty benefitów (opieka medyczna, ubezpieczenie na życie, karta Multisport). JAK WYGLĄDA REKRUTACJA? Zgłoszenie : Zaaplikuj i prześlij swoje CV. Po weryfikacji aplikacji rekruter skontaktuje się telefonicznie z wybranymi kandydatami. Screening : Porozmawiaj z rekruterem speedapp o Twoim doświadczeniu . Kolejne etapy: Rekruter speedapp przedstawi Ci jak wygląda proces rekrutacji na dane stanowisko. Rekruter speedapp pozostanie z Tobą w kontakcie podczas całego procesu. O SPEEDAPP W speedapp wierzymy, że organizacja jest tak dobra jak tworzący ją ludzie. Jesteśmy zespołem ekspertów IT i innych specjalistów pracujących dla naszych klientów na całym świecie (m.in Izrael, Austria, USA). Wykraczamy daleko poza kategorię HR. Budujemy zespoły IT, a także pomagamy w ich zarządzaniu. 👉 10 lat doświadczenia 👉 +100 klientów na całym świecie +300 zatrudnień rocznie 💎 Jesteśmy laureatem prestiżowej nagrody Diamenty Forbes cztery lata z rzędu (2022, 2023, 2024, 2025), członkiem sieci Fast Growth Icons oraz FinTech Poland. MASZ PYTANIA? Skontaktuj się bezpośrednio z rekruterem odpowiedzialnym za ten proces. Adrianna Rudzka Junior IT Delivery Consultant adrianna.rudzka@speedapp.pl +48 884 271 647