Senior React Developer

🏢 Summary: B2B contract role for a Senior React Developer in the banking sector, focused on building and delivering scalable, platform-level frontend solutions including NPM libraries and Design System components. The position involves creating high-quality React applications, maintaining automated tests, and supporting frontend teams with technical expertise. Hybrid work model with regular collaboration across product and platform teams. 🗂️ Requirements: Very good knowledge of React, Very good knowledge of JavaScript, Very good knowledge of TypeScript, Strong knowledge of NPM, Strong knowledge of CSS, Experience building and maintaining scalable frontend applications, Experience creating and maintaining NPM packages, Strong experience with unit and e2e testing, Proficiency with Git (rebase, cherry-pick, revert, squash), Understanding of WCAG and accessibility principles, Experience with Jira, Experience with Confluence, Experience with Bitbucket, English level B2 or higher 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, TestingLibrary, Cypress, Git, WCAG, Jira, Confluence, Bitbucket 🏢 Description: Dla klienta z branży bankowości poszukujemy osoby na stanowisko Senior React Developera. ZADANIA Dostarczanie generycznych i platformowych rozwiązań dla zespołów frontendowych (biblioteki NPM, komponenty Design Systemu, generyczne funkcjonalności). Tworzenie innowacyjnych rozwiązań technicznych dla środowiska front-end. Pisanie i utrzymanie testów jednostkowych oraz e2e. Dbanie o spójność oraz wysoką jakość dostarczanych rozwiązań. Naprawa błędów oraz refaktoryzacja istniejącego kodu. Współpraca z zespołami platformowymi, projektantami oraz zespołami produktowymi. Wsparcie merytoryczne zespołów w obszarze front-endu. WYMAGANIA Bardzo dobra znajomość React, JavaScript, TypeScript, NPM oraz CSS. Doświadczenie w budowie i utrzymaniu skalowalnych aplikacji front-endowych oraz paczek NPM. Bardzo dobra znajomość testów jednostkowych i e2e (Jest, Testing Library, Cypress). Biegła obsługa systemu kontroli wersji Git (rebase, cherry-pick, revert, squash). Dobre rozumienie zasad dostępności (WCAG, a11y). Doświadczenie w pracy z Jira, Confluence oraz Bitbucket. Język angielski: minimum poziom B2 (komunikacja pisemna i ustna). Preferowane wykształcenie wyższe na kierunku informatycznym. MILE WIDZIANE Doświadczenie w pracy z design systemami (używanie i współtworzenie). Doświadczenie w architekturze microfrontendów. Doświadczenie w pracy z hybrydowymi aplikacjami mobilnymi (WebView, React Native, Capacitor). Doświadczenie w pracy z agentami AI lub narzędziami opartymi o AI. CO OFERUJEMY NA TYM PROJEKCIE? Współpracę w oparciu o umowę B2B i stawkę do 130 zł/h . Pracę hybrydową z Warszawy (1-2 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. Aleksandra Mazur Junior IT Delivery Consultant aleksandra.mazur@speedapp.pl +48 728 360 029

🏢 Summary: Senior React Developer role in the banking sector focused on delivering scalable, high-quality front-end and platform solutions. The position involves building and maintaining reusable components, ensuring accessibility compliance, and implementing comprehensive unit and e2e testing. The developer will also support other teams with front-end best practices and technical expertise. 🗂️ Requirements: Minimum 5 years of professional experience, Experience in banking or financial sector, Very good knowledge of React, Very good knowledge of JavaScript, Very good knowledge of TypeScript, Very good knowledge of CSS, Experience in building scalable front-end applications, Experience in creating and maintaining NPM packages, Strong knowledge of unit testing, Strong knowledge of e2e testing, Ability to write and refactor tests using Jest, Testing Library, Cypress, Proficiency with Git, Knowledge of Accessibility (a11y) principles, Ability to build interfaces compliant with WCAG, Experience with Jira, Experience with Confluence, Experience with Bitbucket 📃 Skills: React, JavaScript, TypeScript, CSS, NPM, Jest, TestingLibrary, Cypress, Git, WCAG, Accessibility, Jira, Confluence, Bitbucket 🏢 Description: umowa: B2B stawka: 185 zł/h + VAT tryb: hybryda, 1 dzień w tygodniu (środa) z biura w Warszawie branża: bankowość Poszukujemy Senior React Developera, który posiada bardzo dobrą znajomość technologii webowych oraz umiejętność współpracy w zespole. Wymagana jest biegłość w React, JavaScript, TypeScript oraz CSS, a także znajomość testów jednostkowych i dobrych praktyk w zakresie dostępności. Idealny kandydat to osoba, która potrafi dostarczać wysokiej jakości rozwiązania techniczne oraz wspierać inne zespoły. Główne obowiązki Dostarczanie generycznych i platformowych rozwiązań dla zespołów front-endowych. Pisanie i utrzymanie testów jednostkowych oraz e2e. Dbanie o spójność i wysoką jakość dostarczanych rozwiązań. Naprawa błędów. Współpraca z innymi zespołami platformowymi i projektantami. Wsparcie merytoryczne zespołów w ramach szeroko rozumianego front-endu. Tworzenie i utrzymywanie dokumentacji. Kluczowe wymagania Minimum 5 lat doświadczenia zawodowego. Doświadczenie w sektorze bankowym/finansowym. Bardzo dobra znajomość React, JavaScript, TypeScript, NPM oraz CSS. Doświadczenie w tworzeniu i utrzymywaniu skalowalnych aplikacji front-endowych oraz paczek NPM. Bardzo dobra znajomość testów jednostkowych oraz e2e. Umiejętność samodzielnego pisania, utrzymywania i refaktoryzacji testów (np. Jest, Testing Library, Cypress). Biegła obsługa systemu kontroli wersji Git. Dobre rozumienie zasad dostępności (Accessibility / a11y). Umiejętność tworzenia interfejsów zgodnych z WCAG. Doświadczenie z pracą z Jira, Confluence, Bitbucket. Umiejętności mile widziane Doświadczenie w pracy z design systemami, zarówno w ich używaniu, jak i współtworzeniu we współpracy z zespołem projektowym. Doświadczenie w architekturze microfrontendów. Znajomość wyzwań związanych z podziałem aplikacji i integracją. Doświadczenie w pracy z hybrydowymi aplikacjami mobilnymi (np. WebView, React Native). Doświadczenie w pracy z agentami AI lub narzędziami opartymi o AI.

🏢 Summary: Senior React Developer role focused on building and maintaining modern, scalable web applications in a large international banking environment. The position involves designing rich, responsive user interfaces, ensuring high code quality, and supporting production releases within Agile teams. It is a long-term B2B contract with hybrid work from Kraków. 🗂️ Requirements: Proven experience delivering web applications, Strong experience building rich frontend/UI layers, Excellent knowledge of React.js, Excellent knowledge of JavaScript and TypeScript, Strong knowledge of HTML5 and CSS3, Experience with CSS preprocessors, Experience with frontend testing frameworks, Ability to create pixel-perfect UI from specifications, Experience designing responsive interfaces, Understanding of accessibility and cross-browser compatibility, Knowledge of JSON and XML data handling 📃 Skills: React, JavaScript, TypeScript, HTML5, CSS3, SASS, Less, Jest, ReactTestingLibrary, JSON, XML, Git, Node.js, Express 🏢 Description: 🌍Work mode: hybrid from Kraków - 6x per month in the office. ⏰Start: ASAP/30 days. 📝Contract: B2B. ⚙️Recruitment process: ·       I stage: 1h live coding React . ·       II stage: test online. ⏳Duration: >12 months contracts. 📕Project language: English. 💼Industry: Banking. 💻Workload: Full time. About the role We are looking for a Senior React Developer to join the Business Services Digital team . The team delivers IT solutions and support for Business Services within a large-scale, international banking environment. This is a great opportunity for an experienced frontend engineer who enjoys building high-quality digital products, working in Agile teams, and contributing to modern, scalable web applications in a complex enterprise setting. Your responsibilities Design, develop, test, and implement modern web-based applications Build rich, responsive, and pixel-perfect user interfaces using React Maintain a delivery-oriented approach across application development and supporting software/data infrastructure Manage software releases and support existing systems in production Ensure code quality, maintainability, and full test coverage Contribute to and promote frontend best practices and engineering standards Mentor other team members through knowledge sharing and technical guidance Deliver solutions on time and within budget Follow internal development methodologies, security standards, and documentation requirements Drive productivity and quality improvement initiatives Coordinate releases through to Production Required experience Proven track record in delivering web applications Strong experience building rich frontend/UI layers Excellent knowledge of React.js Excellent knowledge of JavaScript and TypeScript Strong knowledge of HTML5 , CSS3 , and CSS preprocessors such as SASS or Less Experience with frontend testing frameworks such as Jest and React Testing Library Experience creating pixel-perfect UI based on detailed specifications Experience designing responsive interfaces for desktop and mobile applications Good understanding of accessibility and cross-browser compatibility Good knowledge of data marshalling/de-marshalling using JSON and XML Nice to have Experience working with Git Familiarity with IntelliJ and VS Code Good understanding of responsive web techniques Knowledge of Node.js / Express Experience designing digital products in the onboarding or banking domain What makes this opportunity interesting Work on impactful digital solutions in a global banking environment Join a mature engineering team focused on quality, delivery, and best practices Contribute to modern frontend development using React and TypeScript Competitive B2B rate

🏢 Summary: Senior React Front-End Developer role focused on building and maintaining scalable platform-wide React libraries and design system components for a major financial institution. The position involves developing reusable front-end solutions, ensuring quality through testing, and supporting product teams with platform integration. It emphasizes performance, accessibility, and high engineering standards within a hybrid work model. 🗂️ Requirements: 5+ years of experience in front-end development with React, Strong expertise in JavaScript and TypeScript, Experience building and maintaining scalable front-end applications and NPM packages, Experience with unit and end-to-end testing, Proficient use of Git including advanced branch and commit management, Knowledge of accessibility standards and WCAG, Experience with Jira, Confluence, and Bitbucket, Good command of Polish and communicative English, Legal right to work in the European Union 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, Testing, Cypress, Git, WCAG, Jira, Confluence, Bitbucket, ReactNative, Capacitor, WebView 🏢 Description: Empower innovation at scale — shape the future of front-end technology! Warszawa-based opportunity with hybrid work model As a Senior React Front-End Developer – Platform Integration and Design Systems , you will be working for our client, a leading financial institution, delivering robust and scalable front-end solutions. Join a team committed to building advanced platform components that empower seamless user experiences and drive digital transformation. Your main responsibilities: Develop and maintain platform-wide React libraries and components aligned with the Bank’s Design System. Implement and optimize generic functionalities and innovative technical solutions for front-end teams. Write and sustain comprehensive unit and end-to-end tests to ensure high-quality deliverables. Ensure consistency, performance, and accessibility standards are upheld across all solutions. Collaborate with cross-functional platform teams and UI/UX designers to refine components and share best practices. Provide technical guidance and support to product teams utilizing the platform solutions. Maintain clear and detailed documentation for developed components and functionalities. You're ideal for this role if you have: Over 5 years of professional experience in front-end development with React. Strong expertise in JavaScript, TypeScript, NPM, and CSS. Proven experience in building and maintaining scalable front-end applications and NPM packages. Strong knowledge of unit and end-to-end testing (e.g., Jest, Testing Library, Cypress). Proficient use of the Git version control system, including managing branches and commits (rebase, cherry-pick, revert, squash, changing commit order and descriptions). Good understanding of accessibility principles (a11y), WCAG standards, and building accessible interfaces. Experience working with Jira, Confluence, and Bitbucket. It is a strong plus if you have: Experience working with design systems or contributing to their development. Knowledge of microfrontend architecture and integration challenges. Experience with hybrid mobile applications such as React Native, Capacitor, or WebView. Familiarity with AI tools or agents in software development projects. Language required for the role: Good command of Polish and Communicative English. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Front-End Developer role focused on building and maintaining scalable, platform-wide React libraries and components for a financial services environment. The position involves delivering high-quality, accessible, and performance-optimized front-end solutions aligned with a design system. You will collaborate with cross-functional teams to enhance shared components and support product teams with robust platform solutions. 🗂️ Requirements: 5+ years React frontend development experience, Strong JavaScript and TypeScript expertise, Experience building scalable frontend applications, Experience creating and maintaining NPM packages, Proficiency in unit and E2E testing, Advanced Git version control skills, Knowledge of WCAG accessibility standards, Experience with Jira Confluence Bitbucket, Good Polish and communicative English, Legal right to work in the EU 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, TestingLibrary, Cypress, Git, WCAG, Jira, Confluence, Bitbucket, Microfrontend, ReactNative, Capacitor, WebView 🏢 Description: Unleash innovation at scale — shape the future of front-end technology! Warszawa-based opportunity with hybrid work model (2 days from the office) As a Senior React Front-End Developer – Financial Services , you will be working for our client, a leading financial institution, delivering robust and scalable front-end solutions. Join a team committed to building advanced platform components that empower seamless user experiences and drive digital transformation. Your main responsibilities: Develop and maintain platform-wide React libraries and components aligned with the Bank’s Design System. Implement and optimize generic functionalities and innovative technical solutions for front-end teams. Write and sustain comprehensive unit and end-to-end tests to ensure high-quality deliverables. Ensure consistency, performance, and accessibility standards are upheld across all solutions. Collaborate with cross-functional platform teams and UI/UX designers to refine components and share best practices. Provide technical guidance and support to product teams utilizing the platform solutions. Maintain clear and detailed documentation for developed components and functionalities. You're ideal for this role if you have: Over 5 years of professional experience in front-end development with React. Strong expertise in JavaScript, TypeScript, NPM, and CSS. Proven experience in building and maintaining scalable front-end applications and NPM packages. Excellent command of writing and maintaining unit and E2E tests (e.g., Jest, Testing Library, Cypress). Proficiency in Git version control, including branch management and advanced operations (rebase, cherry-pick, revert, squash). Good understanding of Web Accessibility (WCAG standards) and inclusive design principles. Experience working with Jira, Confluence, and Bitbucket. It is a strong plus if you have: Experience working with design systems or contributing to their development. Knowledge of microfrontend architecture and integration challenges. Experience with hybrid mobile applications such as React Native, Capacitor, or WebView. Familiarity with AI tools or agents in software development projects. Language required for the role: Good command of Polish and Communicative English. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data. We offer you: ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions. Enhance your skills and develop your expertise in various industries. Work on the most strategic projects available in the market. Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years. Participate in Social Events, training, and work in an international environment. Access to attractive Medical Package. Access to Multisport Program. Access to Pluralsight. Flexible hours & remote work. You can report violations in accordance with ITDS’s Whistleblower Procedure available here . Ref. number 8871

🏢 Summary: Senior React Developer role focused on building and maintaining modern, scalable web applications in a large international banking environment. The position involves developing high-quality, responsive frontend solutions, ensuring code quality, and supporting production systems within an Agile team. Long-term B2B contract with hybrid work model in Kraków. 🗂️ Requirements: Proven experience delivering web applications, Strong experience building rich frontend/UI layers, Excellent knowledge of React.js, Excellent knowledge of JavaScript, Excellent knowledge of TypeScript, Strong knowledge of HTML5, Strong knowledge of CSS3, Experience with CSS preprocessors (SASS or Less), Experience with Jest, Experience with React Testing Library, Experience creating pixel-perfect UI from detailed specifications, Experience designing responsive interfaces for desktop and mobile, Understanding of accessibility standards, Understanding of cross-browser compatibility, Knowledge of JSON, Knowledge of XML 📃 Skills: React, JavaScript, TypeScript, HTML5, CSS3, SASS, Less, Jest, ReactTestingLibrary, JSON, XML 🏢 Description: Location: Kraków, Poland Work model: Hybrid, 6 days per month in the Kraków office Recruitment process: Test + 1-hour live coding interview in React Contract : B2B, long-term About the role We are looking for a Senior React Developer to join the Business Services Digital team . The team delivers IT solutions and support for Business Services within a large-scale, international banking environment. This is a great opportunity for an experienced frontend engineer who enjoys building high-quality digital products, working in Agile teams, and contributing to modern, scalable web applications in a complex enterprise setting. Your responsibilities Design, develop, test, and implement modern web-based applications Build rich, responsive, and pixel-perfect user interfaces using React Maintain a delivery-oriented approach across application development and supporting software/data infrastructure Manage software releases and support existing systems in production Ensure code quality, maintainability, and full test coverage Contribute to and promote frontend best practices and engineering standards Mentor other team members through knowledge sharing and technical guidance Deliver solutions on time and within budget Follow internal development methodologies, security standards, and documentation requirements Drive productivity and quality improvement initiatives Coordinate releases through to Production Required experience Proven track record in delivering web applications Strong experience building rich frontend/UI layers Excellent knowledge of React.js Excellent knowledge of JavaScript and TypeScript Strong knowledge of HTML5 , CSS3 , and CSS preprocessors such as SASS or Less Experience with frontend testing frameworks such as Jest and React Testing Library Experience creating pixel-perfect UI based on detailed specifications Experience designing responsive interfaces for desktop and mobile applications Good understanding of accessibility and cross-browser compatibility Good knowledge of data marshalling/de-marshalling using JSON and XML Nice to have Experience working with Git Familiarity with IntelliJ and VS Code Good understanding of responsive web techniques Knowledge of Node.js / Express Experience designing digital products in the onboarding or banking domain What makes this opportunity interesting Work on impactful digital solutions in a global banking environment Join a mature engineering team focused on quality, delivery, and best practices Contribute to modern frontend development using React and TypeScript Competitive B2B rate

🏢 Summary: Senior Full-Stack Engineer role focused on designing and evolving scalable SaaS systems using Node.js and React in a 100% remote B2B model. The position involves architectural decision-making, production system ownership, performance optimization, and mentoring within a distributed team. The offer targets experienced engineers capable of leading technical initiatives and ensuring system reliability at scale. 🗂️ Requirements: Minimum 10 years of professional software development experience, Proven experience with SaaS-based systems, Strong knowledge of scalable systems and software architecture, Hands-on experience with Node.js, Hands-on experience with React, Experience designing or evolving system architectures, Experience working with production systems and real users, Experience with monitoring, debugging, and performance optimization, Ability to own major system components and lead technical decisions, Excellent English proficiency 📃 Skills: Node.js, React, JavaScript, SaaS, AWS, GCP, Azure, CI/CD, DevOps, Architecture, Monitoring, Debugging, Performance, Scalability 🏢 Description: For a client, we are looking for a Senior Full-Stack Engineer (NodeJS + React)! Salary: 24 000-27 000 net+VAT B2B 100% remote RESPONSIBILITIES Architecture, production, and reliability experience: Proven experience designing systems from scratch or significantly evolving existing architectures Experience working on production systems with real users Strong understanding of architectural trade-offs (performance, scalability, cost, and maintainability) Experience with monitoring, debugging, and performance optimization in production environments Familiarity with handling production issues and incidents Ownership and leadership: Experience owning major system components or leading technical decisions Ability to work independently with minimal supervision Experience mentoring junior or mid-level developers and collaborating within a team REQUIREMENTS At least 10 years of professional software development experience Proven experience working with SaaS-based systems Strong understanding of scalable systems and software architecture Hands-on experience with Node.js and React Excellent English proficiency and strong communication skills NICE TO HAVE Experience with cloud platforms such as AWS, GCP, or Azure Familiarity with CI/CD pipelines and modern DevOps practices Experience working in distributed or remote teams Product mindset — ability to understand business requirements and translate them into technical solution WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 24 000-27 000 PLN/hour 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). 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. Iga Olszewska-Magnowska Senior IT Delivery Consultant iga.olszewska@speedapp.pl

🏢 Summary: Seeking a Senior Full-Stack Engineer (NodeJS + React) to design, evolve, and maintain scalable SaaS systems in a fully remote B2B engagement. The role focuses on architecture, production reliability, and technical ownership of key system components. You will work on real-user production systems, ensuring performance, scalability, and maintainability. 🗂️ Requirements: Minimum 10 years of professional software development experience, Proven experience with SaaS-based systems, Strong knowledge of scalable systems and software architecture, Hands-on experience with Node.js, Hands-on experience with React, Experience designing or evolving system architectures, Experience working with production systems, Experience with monitoring, debugging, and performance optimization, Fluent English proficiency 📃 Skills: Node.js, React, JavaScript, SaaS, Architecture, Scalability, Monitoring, Debugging, CI/CD, AWS, GCP, Azure 🏢 Description: For a client, we are looking for a Senior Full-Stack Engineer (NodeJS + React)! Salary: 24 000-27 000 net+VAT B2B 100% remote RESPONSIBILITIES Architecture, production, and reliability experience: Proven experience designing systems from scratch or significantly evolving existing architectures Experience working on production systems with real users Strong understanding of architectural trade-offs (performance, scalability, cost, and maintainability) Experience with monitoring, debugging, and performance optimization in production environments Familiarity with handling production issues and incidents Ownership and leadership: Experience owning major system components or leading technical decisions Ability to work independently with minimal supervision Experience mentoring junior or mid-level developers and collaborating within a team REQUIREMENTS At least 10 years of professional software development experience Proven experience working with SaaS-based systems Strong understanding of scalable systems and software architecture Hands-on experience with Node.js and React Excellent English proficiency and strong communication skills NICE TO HAVE Experience with cloud platforms such as AWS, GCP, or Azure Familiarity with CI/CD pipelines and modern DevOps practices Experience working in distributed or remote teams Product mindset — ability to understand business requirements and translate them into technical solution WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 24 000-27 000 PLN/hour 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). 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. Iga Olszewska-Magnowska Senior IT Delivery Consultant iga.olszewska@speedapp.pl

🏢 Summary: Senior Full-stack Developer role focused on building and enhancing scalable digital banking solutions using React.js and Java. The position involves end-to-end development, automated testing, deployment, and ensuring quality, security, and reliability of applications in a hybrid work model. You will contribute to engineering practices, observability, and continuous improvement within a fast-paced environment. 🗂️ Requirements: Strong knowledge of React.js, Ability to write custom hooks, Experience building responsive reusable components, Strong knowledge of JavaScript, Strong knowledge of CSS, Strong knowledge of HTML, Proven experience with Java, Proven experience with Spring, Experience with GitLab CI/CD, Experience with Jest, Experience with React Testing Library, Experience with Playwright 📃 Skills: React, Java, JavaScript, CSS, HTML, Spring, GitLab, CI/CD, Jest, Playwright 🏢 Description: We are seeking a talented Senior Full-stack Developer with expertise in React.js and Java to join our dynamic team on an exciting project in the banking sector. If you are passionate about building robust, scalable applications and eager to contribute to a fast-paced, innovative environment, this opportunity may be an excellent fit for you. Please note that hybrid work, with 3 days from the Client office in Wroclaw, is possible. Responsibilities Help design, develop, and improve the digital product Apply a broad range of software engineering practices, from analyzing user needs and developing new features to automated testing and deployment Ensure the quality, security, reliability, and compliance of our solutions by applying our digital principles and implementing both functional and non-functional requirements Build observability into our solutions, monitor production health, help to resolve incidents, and remediate the root cause of risks and issues Share knowledge and expertise with colleagues and contribute regularly to our engineering culture and internal communities Requirements Thorough understanding of React.js and with an ability to write custom hooks and responsive reusable components In-depth knowledge of JavaScript, CSS, HTML, and front-end languages Proven experience in Java and Spring Knowledge of GitLab CI/CD Knowledge of testing frameworks, including Jest and React Testing Library, Playwright Nice to have Knowledge of Microsoft Azure, Terraform Working experience in Agile methodologies (Scrum, Kanban) and knowledge of associated tools like JIRA or GitLab boards We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Full-stack Developer role focused on building and enhancing a digital banking product using React.js and Java. The position involves end-to-end development, quality assurance, observability, and production support in a hybrid work model. Ideal for engineers experienced in scalable applications, CI/CD, testing frameworks, and AI-driven solutions. 🗂️ Requirements: Strong knowledge of React.js with ability to write custom hooks and reusable responsive components, In-depth knowledge of JavaScript, CSS, HTML, Proven experience with Java and Spring, Experience with GitLab CI/CD, Experience with testing frameworks (Jest, React Testing Library, Playwright), Proven AI experience 📃 Skills: React, Java, JavaScript, Spring, HTML, CSS, GitLab, CI/CD, Jest, Playwright, Azure, Terraform, AI 🏢 Description: We are seeking a talented Senior Full-stack Developer with expertise in React.js and Java to join our dynamic team on an exciting project in the banking sector. If you are passionate about building robust, scalable applications and eager to contribute to a fast-paced, innovative environment, this opportunity may be an excellent fit for you. Please note that hybrid work, with 3 days from the Client office in Wroclaw, is possible. Responsibilities Help design, develop, and improve the digital product Apply a broad range of software engineering practices, from analyzing user needs and developing new features to automated testing and deployment Ensure the quality, security, reliability, and compliance of our solutions by applying our digital principles and implementing both functional and non-functional requirements Build observability into our solutions, monitor production health, help to resolve incidents, and remediate the root cause of risks and issues Share knowledge and expertise with colleagues and contribute regularly to our engineering culture and internal communities Requirements Thorough understanding of React.js and with an ability to write custom hooks and responsive reusable components In-depth knowledge of JavaScript, CSS, HTML, and front-end languages Proven experience in Java and Spring Knowledge of GitLab CI/CD Knowledge of testing frameworks, including Jest and React Testing Library, Playwright Proven AI experience Nice to have Knowledge of Microsoft Azure, Terraform Working experience in Agile methodologies (Scrum, Kanban) and knowledge of associated tools like JIRA or GitLab boards We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.