React Developer (f/m/x)

🏢 Summary: Role focused on designing and developing scalable microservices for a modern fintech expense management platform integrating payments, cards, and invoicing into partner systems. The position involves leading technical initiatives, optimizing system performance, and ensuring high reliability in a cloud-based distributed environment. You will also mentor engineers and drive technical improvements across the platform. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong expertise in Kotlin, Experience with distributed systems, Experience with microservices architecture, Experience with cloud environments (AWS, Kubernetes), Proficiency with PostgreSQL or other relational databases, Experience with JUnit and Testcontainers, Experience with observability tools such as Grafana, Very good English (minimum B2), Fluent Polish, Residence in Poland 📃 Skills: Kotlin, AWS, Kubernetes, PostgreSQL, JUnit, Testcontainers, Grafana, Microservices, DistributedSystems, Cloud 🏢 Description: Join a team working on a modern fintech platform that supports company expense management. The project focuses on developing a finance solution that enables seamless integration of financial tools (including payment cards, expense management, and invoice handling) directly into partner systems such as banks, accounting platforms, and HR solutions. The product being developed allows companies to simplify financial processes, automate settlements, and gain full real-time control over their spending. Your tasks Leading initiatives to design, build, and maintain scalable microservices primarily using Kotlin Collaborating with cross-functional teams to develop innovative solutions across Platform, Services, SMB, and other domains Analyzing system performance and implementing optimizations to ensure high reliability and scalability Participating in code reviews, post-mortems, and providing mentorship to other engineers Proactively improving the architecture and quality of solutions, and leading the team through technical challenges and migrations Requirements Minimum 5 years of professional experience in software development Expertise in server-side languages, especially Kotlin, and experience with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes) Proficiency with relational databases like PostgreSQL, testing frameworks (e.g., JUnit, Testcontainers), and observability tools like Grafana Strong problem-solving skills and a collaborative mindset to mentor and upskill your teammates Very good knowledge of English - min. B2 level Residing in Poland required Nice-to-have requirements Previous work in the fintech industry or with financial products Knowledge of topics related to payments, cards, or accounting Experience working in a scale-up environment Proficiency in one of the following front-end technologies: React or TypeScript 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 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: Mid-level Frontend Developer role in a greenfield fintech project building a large-scale banking platform from scratch. You will design and develop web and mobile user interfaces using React, shaping frontend architecture and standards within a cross-functional international team. The position offers real impact on core frontend services and architectural decisions from day one. 🗂️ Requirements: Commercial experience in frontend development (mid-level), Hands-on experience with React, Experience building web applications, Understanding of modern frontend architecture, Ability to integrate frontend with REST APIs, Fluent English (spoken and written), Availability to work from office 3 days per week 📃 Skills: React, JavaScript, TypeScript, REST, GCP, Flutter, CI/CD, HTML, CSS 🏢 Description: Salary: 500-800 pln/md B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (3 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space. As a Frontend Developer, you will be part of a cross-functional squad responsible for designing and developing the user-facing layer of this greenfield product . You will work within a mixed frontend-backend squad, collaborating closely with your Tech Lead, Senior Developer, Business Analyst, and QA Engineer. This is a rare opportunity to define the frontend architecture, UI patterns, and user experience of a financial platform from scratch - covering both web and mobile channels. Responsibilities you'll have Design, develop, and maintain frontend applications across web and mobile channels Build responsive, performant, and accessible user interfaces using React Collaborate within a cross-functional squad (Tech Lead, Senior Developer, BA, QA, Backend Developers) Translate business requirements and UI/UX designs into clean, maintainable frontend code Integrate frontend applications with backend APIs and services Participate in code reviews, technical discussions, and architectural decisions Write clean, testable, and well-documented code following best practices Contribute to establishing frontend standards, component libraries, and development patterns Communicate progress, blockers, and technical decisions in English Expected competences and knowledge Solid commercial experience in frontend development (mid-level) Hands-on experience with React (web applications) Fluent English (spoken and written) Availability to work from the office 3 days per week (Warsaw, Kraków, Tricity, or Rzeszów) Understanding of modern frontend architecture and best practices Nice to have: Familiarity with Google Cloud Platform (GCP) Familiarity with Flutter Experience in financial services or banking domain Experience in greenfield projects Knowledge of state management patterns, design systems, and component-driven architecture Technologies you'll work with React REST APIs GCP (optional) Modern frontend tooling and libraries CI/CD pipelines Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers. It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Backend engineering role focused on building and maintaining Kotlin-based microservices for a modern fintech expense management platform. The position involves developing scalable financial integrations with banks, accounting, and HR systems while ensuring high reliability and performance. You will contribute to architecture improvements, code quality, and system observability in a cloud environment. 🗂️ Requirements: Minimum 3 years of software development experience, Commercial experience with Kotlin, Experience building backend systems, Experience with microservices architecture, Basic experience with AWS or Kubernetes, Experience with PostgreSQL, Experience with testing and observability tools, Good command of English, Residence in Poland 📃 Skills: Kotlin, Microservices, Backend, AWS, Kubernetes, PostgreSQL, JUnit, Grafana, Cloud 🏢 Description: Join a team working on a modern fintech platform that supports company expense management. The project focuses on developing a finance solution that enables seamless integration of financial tools (including payment cards, expense management, and invoice handling) directly into partner systems such as banks, accounting platforms, and HR solutions. The product allows companies to simplify financial processes, automate settlements, and gain full real-time control over their spending. Your tasks Designing, building, and maintaining microservices using Kotlin Collaborating with cross-functional teams to deliver solutions across Platform, Services, SMB, and other domains Supporting system performance monitoring and contributing to improvements in reliability and scalability Participating in code reviews and maintaining high code quality standards Contributing to the continuous improvement of code quality and system architecture Troubleshooting and resolving technical issues Requirements Minimum 3 years of professional experience in software development Hands-on experience with Kotlin in commercial projects Experience building backend systems and working with microservices architecture Basic experience with cloud environments (e.g., AWS, Kubernetes) Experience with relational databases (e.g., PostgreSQL) as well as testing and observability tools (e.g., JUnit, Grafana) Good command of English Residing in Poland required 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 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: Short-term B2B contract for a Fullstack Developer (Node.js + TypeScript) to build and maintain backend services for a regulated digital capital market platform in the fintech domain. The role focuses on developing scalable APIs, integrating KYC/AML providers, and implementing authentication, authorization, and investor management features. The project emphasizes code quality, security, and collaboration with cross-functional teams. 🗂️ Requirements: 3+ years commercial experience with Node.js, Strong knowledge of TypeScript, Experience building REST APIs, Experience with NestJS or similar framework, Experience with Prisma ORM or similar ORM, Understanding of authentication and authorization, Experience with relational databases, Experience writing automated tests, Knowledge of clean code principles, English for daily communication 📃 Skills: Node.js, TypeScript, NestJS, Prisma, REST, SQL, Jest, Supertest, Authentication, Authorization 🏢 Description: Description We are a technology company that started its journey in 2008. Our main headquarters is located in the picturesque city of Poznań, nestled by the beautiful Malta lake. For more than 17 years, we have been assisting companies in developing and implementing innovative fintech solutions. Leveraging our expertise in areas such as blockchain, online payments, and more, our clients can invent and develop cutting-edge solutions and services that keep them at the forefront of innovation. FULLSTACK DEVELOPER B2B: 80-100 PLN / hour START - 1 JULY TERM - 6 WEEKS LOCATION: POLAND (REMOTE) *We offer a hybrid work model, allowing you to balance office presence with remote work. However, it's important to note that the role emphasizes a stronger presence in the office to foster teamwork and effective communication. Requirements Key Duties and Services: A Roadmap to Your Professional Success Your Mission : We are looking for a Fullstack Developer (Node. js + TypeScript) to join a fintech project focused on building a regulated digital capital market platform. The system supports investor onboarding, KYC/AML verification, investor classification, access control, audit logging, and digital wallet infrastructure. You will work closely with senior engineers and architects to build scalable backend services and integrations with fintech and blockchain-related providers. Scope of services: Developing and maintaining backend services using Node. js + TypeScript Building and extending REST APIs for onboarding, authentication, and user management Integrating external KYC/AML and identity verification providers Implementing business logic for investor classification and access control Creating and maintaining database models using Prisma ORM Writing unit and integration tests (Jest, Supertest) Participating in code reviews and technical discussions Collaborating with frontend, mobile, QA, and product teams Supporting code quality, security, and system reliability Here’s the set we are required: 3+ years of commercial experience with Node. js backend development Strong knowledge of TypeScript Experience building REST APIs and backend systems Experience with NestJS or similar frameworks Experience with Prisma ORM or similar Understanding of authentication & authorization concepts Familiarity with relational databases Experience writing automated tests (Jest, Supertest or similar) Strong understanding of clean code principles and best practices Good communication skills and English for daily cooperation Nice to have: Experience with class-validator / DTO-based validation Familiarity with GraphQL (Apollo) Experience in fintech / banking / regulated environments Knowledge of KYC/AML processes Exposure to blockchain, wallets, or digital assets Career Advancement at Your Fingertips: Explore Opportunities with Us By joining us you will get: Work on a modern fintech platform with real regulatory requirements Collaboration with experienced senior engineers and architects Opportunity to work with KYC/AML, identity systems, and fintech integrations Influence on system design and backend architecture decision A strong engineering culture focused on quality, security, and scalability Navigating the Hiring Process: What does the recruitment process for that position look like? HR Screening with Talent Acquisition Specialist (30 min) Technical Interview (60 min) Interview with Delivery Manager (30 min) Job Offer

🏢 Summary: Lead Frontend Developer role in a large-scale global e-commerce project focused on expanding platform capabilities such as returns management, notifications, and dedicated customer and merchant portals. The position combines frontend architecture leadership with hands-on React and TypeScript development, ensuring high performance, quality, and security. You will work in an agile environment, collaborating across teams and supporting production systems. 🗂️ Requirements: 5+ years of frontend development experience, Expertise in React, Strong knowledge of TypeScript, Strong understanding of modern JavaScript frameworks, Experience with responsive design, Knowledge of web accessibility standards, Experience with CI/CD pipelines, Experience with frontend testing tools, Ability to lead frontend architecture and development, Legal work permit in Poland 📃 Skills: React, TypeScript, JavaScript, CI/CD, Scrum, Accessibility, HTML, CSS, Testing 🏢 Description: Project info You will be joining a major project focused on the evolution of a global e-commerce ecosystem. The scope is dynamic and involves expanding a large-scale platform with new capabilities. As the project moves past its initial kickoff, the team is focusing on delivering high-value features for both merchants and end-customers. Key areas of focus include: Feature Development: Building Returns Management, Notifications, White Label capabilities, and developing dedicated Customer and Merchant portals. Agile Governance: Active participation in Program Increment (PI) planning, release tracking, backlog grooming, and the configuration/management of Scrum boards. Quality & Security: Ensuring system robustness through Security, Vulnerability, and Penetration testing, as well as Performance and Stress testing. Support & Maintenance: Providing development support for the application on production, covering bug fixes and developing enhancements, along with end-user documentation and training. Lead frontend architecture and development Ensure UI/UX consistency and performance Collaborate with backend and design teams Drive adoption of modern frontend technologies Maintain code quality and testing standards Participate in on-call duties, additionally paid 5+ years of frontend development experience Expertise in React, TypeScript, and modern JS frameworks Strong understanding of responsive design and accessibility Experience with CI/CD and frontend testing tools Must possess a legal work permit in Poland General benefits - depends on the form of employment Hybrid work model combining office & remote work Attractively located office with collaboration spaces Onsite parking space for employees Referral program with financial bonus Life Insurance Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment Access to internal Learning Platform with multiple trainings oriented for professional growth Lifestyle benefits: Access to MyBenefit platform (Multisport included) Team Building activities Charity initiatives Working environment promoting diversity and inclusion Health benefits: Private medical care - Platinum Package

🏢 Summary: Fullstack Engineer role focused on building and scaling a data and analytics platform for investment decision-making, leveraging machine learning and strategic data. The position involves end-to-end development of production-grade applications, API integration, and ensuring platform scalability and performance in a hybrid work model. 🗂️ Requirements: 4+ years of experience with TypeScript and Node.js in production environments, Strong knowledge of HTML and CSS, Experience with SQL and PostgreSQL databases, Ability to design and integrate REST and GraphQL APIs, Experience with automated testing, pair programming, and peer review practices 📃 Skills: TypeScript, Node.js, HTML, CSS, SQL, PostgreSQL, GraphQL, REST, GCP, DevOps 🏢 Description: About the Project: Our client is a Swedish fintech company expanding in Poland. This project focuses on developing a data and analytics platform designed to revolutionize investment decision-making by leveraging machine learning and strategic data. As a Fullstack Engineer, you will design, develop, and maintain scalable solutions, collaborating with cross-functional teams to ensure the delivery of high-quality features. Work Mode : Hybrid – 2/3 days in the Warsaw office Job Responsibilities: Collaborate with cross-functional teams to ensure the delivery of high-quality features. Contribute to all stages of the development lifecycle. Design, develop, and maintain scalable solutions that support investment operations. Leverage machine learning and strategic data to deliver exceptional insights. Work closely with passionate professionals who believe in collaboration, innovation, and making a meaningful impact. Ensure the platform's scalability and performance through continuous improvement and optimization. Expectations: Must have: 4+ years of experience developing production-grade applications using TypeScript and Node.js Strong understanding of HTML, CSS, and design principles Knowledge of database management with SQL and PostgreSQL Experience with software craftsmanship practices, including automated testing, pair programming, and peer review Ability to write and integrate APIs in various formats such as GraphQL and Rest Nice to have: Experience with Google Cloud Platform (GCP) and DevOps practices. Familiarity with cloud-native development and scalable system architectures. We offer: Ongoing support from a dedicated agent who is caring about your project continuity, contact with clients, necessary formalities, work comfort, and development. Career Development Program – advice on career planning based on the latest trends and market needs in IT, including consultations with career agents and mentors. Access to 7N Learning & Development – a development and educational platform offering webinars, a library of articles and industry reports, and frequent invitations to both one-time and recurring events focused on technical, business, and lifestyle topics. Spectacular events, both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g. family picnics), Professional growth Professional growth beyond your current project. You can actively engage in knowledge sharing through the 7N Services offering, designed for 7N clients. Connections and access to the expertise of top IT professionals in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad.

🏢 Summary: Frontend Developer role focused on building modern, high-performance web applications from scratch using React and TypeScript within an agile, international financial services initiative. The position involves contributing to architecture, participating in sprint planning, performing code reviews, and mentoring junior developers. Work is delivered in a remote/hybrid model within a multidisciplinary agile team. 🗂️ Requirements: University degree in Computer Science or related field, Minimum 4 years of frontend development experience, Strong experience with React and TypeScript, Experience with React Router, GraphQL and Apollo Client, Experience with LESS, JavaScript, HTML and CSS, Experience working with Scrum, Kanban or SAFe, Experience with Webpack and npm, Fluency in Polish, Very good English communication skills, Availability for remote/hybrid work with monthly office visits 📃 Skills: React, TypeScript, ReactRouter, GraphQL, Apollo, LESS, JavaScript, HTML, CSS, Webpack, npm, Scrum, Kanban, SAFe 🏢 Description: Responsibilities As part of a new international business initiative, you will contribute to building from scratch a technology-oriented company focused on innovating the IT delivery model for a major player in the European Financial Services industry. You will join a multidisciplinary, agile team of experts and develop modern, high-performance web applications using React and TypeScript . Working closely with your agile team, you will help define sprint goals, provide estimates, propose solutions for complex challenges and contribute to architectural decisions. You will guide and support junior engineers, helping them grow, ensuring quality contributions and fostering a collaborative team culture. Code reviews will be part of your daily routine, and you will actively help colleagues by sharing best practices, offering constructive feedback and contributing to continuous improvement. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Successfully completed university degree in computer science or a comparable field of study. At least 4 years of experience in frontend development , with a strong focus on React and TypeScript . Excellent knowledge of React , React Router , GraphQL , Apollo Client , LESS , AntDesign , JavaScript , HTML and CSS. Hands-on experience with agile methodologies such as Scrum, Kanban or SAFe. Experience with Webpack and npm for build and package management. Fluency in Polish and very good communication in English Availability to work in a remote/hybrid mode . Remote workers, we invite to the office once every month . About Nexi Digital Nexi is Europe's PayTech company operating in high-growth, attractive European markets and technologically advanced countries. Listed on Borsa Italiana's MTA, Nexi has the scale, geographic reach and abilities to drive the transition to a cashless Europe. With its portfolio of innovative products, e-commerce expertise and industry-specific solutions, Nexi provides flexible support for the digital economy and the entire payment ecosystem globally, across a broad range of different payment channels and methods. Nexi’s technological platform and the best-in-class professional skills in the sector lets the company operate at its best in three market segments: Merchant Services & Solutions, Cards & Digital Payments and Digital Banking & Corporate Solutions. Nexi constantly invests in technology and innovation, focusing on two fundamental principles: meeting, together with its partner banks, customer needs and creating new business opportunities for them. Nexi is committed to supporting people and businesses of all sizes, transforming the way people pay and businesses accept payments. It offers companies the most innovative and reliable solutions to better serve their customers and expand. By simplifying payments and enabling people and businesses to build closer relationships and grow together, Nexi promotes progress to benefit everyone.

🏢 Summary: Senior React Developer role focused on building a modular, component-based UI platform for a core financial engine within a fully remote model. The position involves developing new features, integrations, and contributing to architectural decisions in an agile, fast-paced environment. The role requires strong ownership and collaboration within a small frontend team. 🗂️ Requirements: 5+ years of professional frontend development experience, Strong experience with React, Strong understanding of REST APIs, Strong knowledge of CSS, Experience with component-based UI design, Ability to manage complex tasks independently, Communicative Polish and English, Legal right to work in the European Union 📃 Skills: React, JavaScript, REST, CSS, Kubernetes, Grafana, Prometheus, Jira, Confluence 🏢 Description: Unleash the Power of Innovation - Build Next-Generation Financial Platforms! 100% remote work model As a Senior React Developer , you will be working for our client, a leading player in the financial industry, dedicated to creating cutting-edge, flexible, and scalable digital solutions. Join a team responsible for developing a core financial engine platform, delivering impactful UI components, and shaping the future of financial technology within an agile environment. Your main responsibilities: Develop and enhance a modular, component-based UI platform from scratch using React Collaborate closely with a small, autonomous frontend team to ensure seamless integration with the core financial engine Take ownership of tasks in a fast-paced environment, managing your workload proactively without direct oversight Implement new features and integrations, possibly connecting with other frontend systems, ensuring high performance and usability Contribute to the platform’s architecture and design decisions, ensuring adaptability and scalability You're ideal for this role if you have: 5+ years of professional experience in frontend development, particularly with React Strong understanding of REST APIs, CSS, and component-based UI design Experience working in autonomous teams, managing complex development tasks from start to finish Familiarity with Kubernetes, Grafana, Prometheus, Jira, and Confluence is a plus A proactive attitude with excellent problem-solving skills Language Required for the role: Communicative Polish and English levels Eligibility to work on this 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.