Frontend Developer (React Native / React)

🏢 Summary: 12-month B2B contract for experienced Backend Developers to build new features and products for a flagship Cashback/Loyalty application in a fast-paced Agile environment. The role focuses on highly scalable, high-load systems using a modern JavaScript stack, fully remote with required overlap with US teams (2pm–10pm CET). 🗂️ Requirements: 5+ years of experience with Node.js (backend), Strong experience with TypeScript, Strong experience with PostgreSQL, Experience with scalable, event-driven architectures, Availability to work 2pm–10pm CET 📃 Skills: Node.js, TypeScript, PostgreSQL, JavaScript, React, ReactNative, GCP, Redis, Docker, Kafka, GraphQL, Apollo, CI/CD 🏢 Description: Our client - a fast-growing US-based fintech - is looking to hire 2 strong Backend Developers to help on an initial 12-month B2B contract, to work remotely. You will be working in an Agile team, dedicated to working on new features and products related to the companies flagship Cashback / Loyalty application. This will be a dynamic and fast-paced enviromnet, working on highly scalable architectures and high load / high transaction databases in a modern JavaScript environment. You must be comfortable working from 2pm-10pm CET, in order to have full consistency with the US teams. Requirements: 5+ years of experience working with Node.JS (Backend) Strong experience with Typescript Strong experience with PostgreSQL Familiarity with scalable, event-driven architectures Some experience in fintech environment is nice to have, but not mandatory Experience with the following is not necessary , but are part of the wider tech stack and so any supplementary knowledge could be helpful: React Native, React.js, GCP, Redis, Docker, Apache Kafka, Apollo GraphQL, CI/CD tool

🏢 Summary: B2B contract role for a Front-end React Developer to build and enhance a business-critical application in a fully remote agile team. The position focuses on delivering modern, user-centric UI solutions using React and JavaScript, with strong involvement in DevOps and CI/CD processes. The developer will collaborate with stakeholders and technical teams to operationalize UI components for generative AI services. 🗂️ Requirements: 4+ years React experience, 4+ years JavaScript experience, Professional frontend development background, CI/CD knowledge, Linux proficiency, Jira experience, GitLab experience, OpenShift experience, Unit testing experience, System testing experience, DevOps competence, English proficiency 📃 Skills: React, JavaScript, CI/CD, Linux, Jira, GitLab, OpenShift, DevOps, Testing, Agile, AI 🏢 Description: Start Date: ASAP / Within 1 Month / Flexible Work Model: 100% remote Contract Type: B2B (160-180 PLN/h + VAT) As a Front‑end React Developer , you will join an agile development team delivering high‑quality enhancements to a strategic, business‑critical application. In this role, you will act as a reliable technical partner for business stakeholders, contributing to efficient and timely software delivery. You will focus on building modern, user‑centric UI solutions using React and JavaScript, while ensuring high standards of quality and usability. Responsibilities Develop high‑quality front‑end solutions using React and JavaScript within an agile project team, including unit and system testing. Collaborate directly with business stakeholders to clarify user stories, requirements, and support business testing activities. Contribute to CI/CD pipelines and deployment processes using DevOps practices and tools such as Jira, GitLab, and OpenShift. Work closely with senior engineers, DevOps/MLOps, and data scientists to operationalize the UI layer of generative AI services. Expectations min. 4 years of hands‑on experience with React and JavaScript in professional front‑end development projects. Solid DevOps competence, including CI/CD workflows, Linux environments, and hands‑on experience with Jira, GitLab, and OpenShift. Proven ability to perform unit and system testing and deliver high‑quality code with minimal supervision. Excellent English communication skills What We Offer: Medicover healthcare package Multisport card Access to an e-learning platform Group life insurance

🏢 Summary: B2B remote Frontend Developer role supporting large-scale insurance transformation projects, focused on building modern, scalable frontend solutions in international agile teams. The position involves translating complex business requirements into technical designs and delivering high-quality client-facing applications using modern web technologies. 🗂️ Requirements: Strong hands-on experience with React, Strong knowledge of TypeScript and JavaScript ES6, Proficiency in HTML5, CSS3, SCSS, Minimum 3–4 years experience in corporate IT in similar role, Practical knowledge of REST architectures, Experience with unit testing, Knowledge of SQL and at least one database engine, Experience working in Agile/Scrum environment, Experience in international project teams 📃 Skills: React, TypeScript, JavaScript, ES6, HTML5, CSS3, SCSS, REST, SQL, UnitTesting, Databases, Agile, Scrum 🏢 Description: Start Date: ASAP / Within 1 Month / Flexible Work Model: 100% remote Contract Type: B2B (130-150 PLN/h + VAT) We are looking for an experienced Frontend Developer to support large-scale Insurance transformation projects. The role focuses on designing and delivering modern, scalable frontend solutions aligned with complex business and technical requirements. You will collaborate with international, agile delivery teams on client-facing implementations across multiple streams. Expectations: Strong hands-on experience with React and modern frontend technologies (TypeScript, JavaScript ES6, HTML5, CSS3, SCSS). Minimum 3-4 years of professional experience in a corporate IT environment in a similar role. Practical knowledge of RESTful architectures, unit testing, SQL, and at least one database engine. Excellent communication skills in English, with experience working on international projects. Familiarity with agile / scrum methodology Responsibilities: Contribute as a Frontend Developer across multiple implementation streams within Insurance projects. Analyze business requirements and translate them into frontend designs and technical solutions. Develop, test, debug, and document frontend applications using modern technologies. Collaborate with agile team members to achieve project milestones and client objectives. What We Offer: Medicover healthcare package Multisport card Access to an e-learning platform Group life insurance

🏢 Summary: The offer is for an experienced Frontend Developer to build and optimize modern web applications using React.js and TypeScript in an Agile, international environment. The role focuses on developing new features, improving performance, resolving production issues, and delivering stable, scalable solutions. You will collaborate with cross-functional teams and contribute to continuous technical improvements. 🗂️ Requirements: Strong commercial experience in frontend development, Expert knowledge of React.js, Expert knowledge of TypeScript, Solid understanding of JavaScript fundamentals, Experience with E2E testing frameworks, Experience with CI/CD pipelines, Experience with version control systems, Proven debugging and performance optimization skills, Ability to work in distributed environment, Fluent English B2+/C1 📃 Skills: React, TypeScript, JavaScript, Cypress, Playwright, CI/CD, Git, HTML, CSS, Agile 🏢 Description: We are looking for an experienced Frontend Developer to join our international team. In this role, you will develop and optimize modern web applications, contribute to technical improvements, and help deliver stable, high-performance solutions in a collaborative Agile environment. Your responsibilities: Develop and maintain modern web applications using React.js and TypeScript Build new features and improve existing functionalities for the platform Optimize application performance and troubleshoot technical issues Debug and resolve production incidents to ensure platform stability Participate in technical discussions, code reviews, and continuous improvement initiatives Collaborate closely with cross-functional teams, including Product, Design, QA, and mobile development teams Work with our JavaScript/TypeScript-based UI framework designed for TV-box environments Ensure delivery of stable, scalable, and high-quality code following best engineering practices We are looking for you, if you have: Strong commercial experience in frontend development Expert-level knowledge of React.js Expert-level knowledge of TypeScript Solid understanding of JavaScript fundamentals Experience with E2E testing frameworks such as Cypress, Playwright, or similar Experience working with CI/CD pipelines and version control systems Proven experience in debugging, troubleshooting, and performance optimization Ability to work independently in a distributed environment Fluent English (minimum B2+/C1 level) Nice to have: Experience developing applications for Smart TV platforms Experience working on streaming, video, media, or entertainment-related products We offer: Participation in interesting and demanding projects. Flexible working hours. A great, non-corporate atmosphere. Possibility to work remote or hybrid (2 days per week from the office). Opportunities for development and promotion. Attractive package of benefits. We reserve the right to contact the selected candidates.

🏢 Summary: Frontend Developer role focused on building scalable, high-performance, and user-centric web applications for global travel platforms. The position involves developing new features, maintaining existing applications, and collaborating closely with designers and backend teams to deliver intuitive user experiences. You will contribute to frontend architecture, code quality, and continuous improvement in an Agile environment. 🗂️ Requirements: Minimum 3 years commercial experience as Frontend Developer, Strong knowledge of JavaScript, Professional experience with React, Professional experience with TypeScript, Experience with Vue.js, Experience with CMS platforms (non-WordPress), Experience with testing frameworks (unit, integration, end-to-end), Understanding of CI/CD processes, Ability to write clean, testable, maintainable code, Very good command of English 📃 Skills: JavaScript, TypeScript, React, Vue, CMS, ReactHookForm, Webpack, Babel, Vite, Rspack, CI/CD, Next.js, Node.js, AWS 🏢 Description: We are looking for a Frontend Developer to join our team and help build modern, scalable, and user-centric digital products that support our global travel platforms. In this role, you will work closely with designers, backend developers, Product Owners, and business stakeholders to deliver intuitive and high-performing user experiences used by customers around the world. You will have a direct impact on the quality, usability, and evolution of our products. Your responsibilities Develop new user-facing features and maintain existing applications Write clean, maintainable, and efficient code following best practices Ensure high performance, scalability, and responsiveness across web applications Validate and process user input before sending data to backend services Collaborate with designers, developers, and business stakeholders to translate requirements into technical solutions Bridge the gap between design and technical implementation Ensure consistency, usability, accessibility, and responsiveness across digital products Contribute to the continuous improvement of frontend architecture, standards, and development practices Participate in code reviews and knowledge-sharing initiatives Troubleshoot, debug, and resolve application issues Our requirements Minimum 3 years of commercial experience as a Frontend Developer Strong knowledge of JavaScript and modern frontend development practices Professional experience with React and TypeScript Experience working with Vue.js Experience with CMS platforms (other than WordPress) Familiarity with tools such as React Hook Form, Webpack, Babel, Vite, or Rspack Experience with testing frameworks and different testing approaches (unit, integration, end-to-end) Understanding of CI/CD processes and development workflows Ability to write clean, testable, and maintainable code Strong problem-solving skills and attention to detail Good communication skills and very good command of English Nice to have Experience with Next.js Knowledge of Node.js Knowledge of AWS services and cloud-based solutions How we work Clean Code principles Design patterns and software engineering best practices Code reviews and knowledge sharing Static code analysis Continuous Integration and Continuous Deployment (CI/CD) Agile and collaborative development environment What we offer Hybrid work model (1–2 days per week in our Katowice office) Opportunity to work on international, large-scale projects used by customers worldwide Attractive remuneration paid in EUR Flexible working hours Individual learning and development budget Partially or fully funded training and certifications English lessons Mentoring and support from experienced technical leaders Participation in conferences in Poland and abroad A culture focused on collaboration, knowledge sharing, and continuous improvement Space to innovate and bring your own ideas to life Support for IT community initiatives and professional networking Long-term cooperation in a stable, growing international organization

🏢 Summary: Frontend React Developer role focused on building and scaling modern web applications using React and Next.js in distributed, cloud-based environments. The position involves developing reusable components, integrating with APIs and cloud services, and ensuring high performance, security, and code quality through testing and best practices. The role requires strong experience in scalable architectures and collaboration within microservices-based systems. 🗂️ Requirements: 5+ years of commercial experience with React, Strong knowledge of JavaScript and TypeScript, Practical experience with React hooks, routing, and state management, Experience in distributed systems or microservices environments, Experience with cloud platforms (GCP preferred), Experience building scalable applications consuming REST APIs and JSON, Knowledge of data structures and algorithms, Proficiency in HTML and modern CSS approaches, Experience with automated testing (unit, integration, end-to-end), Ability to debug and optimize applications using browser developer tools, Experience building responsive web interfaces 📃 Skills: React, Next.js, JavaScript, TypeScript, HTML, CSS, Tailwind, SASS, CSSModules, REST, JSON, GCP, Microservices, UnitTesting, IntegrationTesting, E2E, BrowserTools, DataStructures, Algorithms 🏢 Description: We are looking for a Frontend React Developer for our client – a global technology consulting company focused on data, analytics, and cloud-based solutions, supporting international organizations in building scalable digital products. They operate in a distributed environment, combining strong engineering practices with a business-oriented mindset to deliver impactful solutions across multiple industries. Your responsibilities Build and enhance modern web applications using React and Next.js Create reusable components and contribute to scalable frontend architecture Work closely with cross-functional teams including backend engineers, data specialists, and product stakeholders Improve performance, security, and overall user experience of applications Connect frontend layers with APIs and cloud-based services Maintain high development standards through testing and clean coding practices. Requirements At least 5 years of hands-on experience with React in commercial projects Strong command of JavaScript and TypeScript Practical understanding of React fundamentals, including hooks, routing, and state management solutions Experience working in distributed systems or microservices environments Exposure to cloud platforms (GCP experience is an advantage) Background in developing scalable applications that consume REST APIs and work with JSON data Solid grasp of core programming concepts such as data structures and algorithms Good knowledge of HTML and modern CSS approaches (e.g. Tailwind, SASS, CSS Modules, or similar tools) Experience with automated testing (unit, integration, and end-to-end) Ability to debug and optimize applications using browser developer tools Experience in building responsive and user-friendly interfaces across devices Strong communication skills and experience working in collaborative, distributed teams Self-driven approach with a strong sense of ownership English proficiency at B2 + level or higher.

🏢 Summary: Senior Frontend Developer role focused on building, maintaining, and optimizing scalable web applications using modern frontend technologies. The position involves designing web architecture, integrating APIs, and supporting CI/CD processes to deliver high-performance user experiences. The role requires strong experience in React-based ecosystems and modern DevOps practices. 🗂️ Requirements: Minimum 5 years of experience in modern frontend technologies, Strong experience with ReactJS and NextJS, Proficiency in HTML, CSS, TypeScript, and JavaScript, Experience designing scalable web architecture, Solid knowledge of REST APIs, Experience with NodeJS and package managers, Experience with CI/CD pipelines and GitHub workflows, Proficient in Git version control, Experience creating technical documentation (e.g., Confluence), English proficiency at B2 level or higher 📃 Skills: ReactJS, NextJS, HTML, CSS, TypeScript, JavaScript, REST, NodeJS, CI/CD, GitHub, Git, Confluence, Azure, GraphQL, HeadlessCMS 🏢 Description: We are seeking a highly skilled and motivated Senior Frontend Developer to join our team. The ideal candidate will have a strong background in front-end coding, troubleshooting, and optimizing web applications. You will play a key role in developing and maintaining high-quality, scalable, and performant web solutions using modern technologies. This position requires a proactive individual with excellent problem-solving skills and a passion for delivering exceptional user experiences. Must-Have Qualifications to be successful for the role: Technical Skills: Develop and maintain web applications using ReactJS / NextJS . Implement responsive designs using HTML, CSS, Typescript, and JavaScript . Create and maintain technical documentation using tools like Confluence. Design and implement scalable web architecture and artifacts. Solid knowledge of REST APIs . Experience with NodeJS and package managers. Utilize DevOps skills, including CI/CD pipelines , GitHub workflows , and actions . Manage version control using GIT effectively. Soft Skills: Strong problem-solving and troubleshooting abilities. Excellent communication and collaboration skills to work effectively in a team environment. Attention to detail and a proactive approach to identifying and resolving issues. Ability to adapt to new technologies and learn quickly. Experience: Minimum 5 years of experience in modern Frontend technologies. English proficiency should be at least B2 level. Nice-to-Have Qualifications: Experience with Azure or other cloud platforms. Experience with GraphQL. Experience with Headless CMS (Content Management System) . Optimize web performance, focusing on Core Web Vitals. Other Details: Work model: 2 days per week in the office and 3 days at home. We offer a flexible work schedule that includes 12 additional Compensation Days besides regular holidays. Note that specific work hours may vary between winter and summer schedules, and the candidate will be required to submit their CV in English.

🏢 Summary: Fullstack Developer role in a long-term, fully remote project focused on building and maintaining a global digital product supporting retail and service operations. The position covers end-to-end product ownership, including development of micro frontends and microservices, cloud deployment, and production support. It offers hands-on work in a modern, scalable, event-driven architecture. 🗂️ Requirements: Strong backend development experience with Java or Kotlin, Solid frontend development experience with React or similar framework, Experience working in AWS cloud environments, Practical experience with microservices architecture, Experience with CI/CD pipelines, Ability to work in trunk-based development setup, Experience with event-driven systems such as Kafka, Familiarity with AI-assisted and agentic development workflows 📃 Skills: Java, Kotlin, React, AWS, Kubernetes, Kafka, GitLab, CI/CD, Microservices 🏢 Description: PROJECT DETAILS: Workload: Full-time Contract: B2B Start : ASAP Model: 100% remote Business Travels: Occasionally BYOD - bring your own device Security check is required as part of the process Initial 6-month contract , with a project planned for at least 3 years Join our project and help build a global digital product used by retailers and service advisors around the world. We are looking for an experienced Fullstack Developer to join the team with a product that supports resale operations and service processes by delivering accurate, optimised information to employees across the dealer network. This is a great opportunity for someone who enjoys working across the full application lifecycle, from development to production , and wants to have a real impact on a modern, business-critical solution. About the role You will be part of a team that owns the product end-to-end — from building new functionality to deploying and maintaining it in production. This is a hands-on engineering role where you will work closely with other developers, contribute to a shared codebase, and help ensure the product remains stable, scalable, and high-quality. You will play an active role in shaping and improving the system. What you will work on Developing and maintaining micro frontends and microservices Improving system performance, stability, and scalability Integrating the platform with internal and external services Continuously improving code quality and development practices Contributing throughout the full lifecycle of the application, including production deployment What we are looking for Strong experience in backend development using Java/Kotlin Solid understanding of frontend development with React or a similar framework Experience working in cloud environments , preferably AWS Practical experience with microservices architecture Experience with CI/CD pipelines and modern software development practices Ability to work in a trunk-based development setup Experience working with event-driven systems , such as Kafka Strong familiarity with AI-assisted and agentic workflows as part of everyday software development Tech stack Frontend: React, micro frontends Backend: Kotlin & Java, microservices Infrastructure: AWS, Kubernetes CI/CD: GitLab Pipelines Messaging: Kafka

🏢 Summary: Full-time Backend Developer role focused on building and maintaining scalable Node.js and TypeScript applications for US clients across various industries, including MVP-stage products. The position involves designing backend architecture, working with SQL/NoSQL databases, and collaborating in Scrum teams in a flexible, remote-first environment. The offer includes long-term cooperation and participation in diverse, technically challenging projects. 🗂️ Requirements: 2+ years commercial experience in Node.js, Experience with Node.js frameworks (Express.js, NestJS or similar), Strong proficiency in TypeScript, Experience with SQL databases, Experience with NoSQL databases, Knowledge of SOLID and KISS principles, Knowledge of design and architecture patterns, Experience with Docker, Experience with GitHub Actions, Basic experience with AWS services, Ability to use ORM or query builders (e.g. Prisma, Knex), English level B2, Polish level C1 📃 Skills: Node.js, TypeScript, JavaScript, Express, NestJS, Fastify, SQL, NoSQL, Prisma, Knex, Docker, AWS, GitHub, GitHubActions, React 🏢 Description: We are looking for skillful Backend Developers to join one of our teams working with US clients - referrals from the high-end American IT market. Our tech stack is built around React, Node.js and TypeScript. We are working with well-established companies and sometimes startups in their early stages (MVPs), which makes the job full of diversity and exciting challenges while crafting cutting-edge solutions. Enjoy the flexibility of working within the Polish time zone and collaborate with clients from diverse industries such as FinTech, SportsTech, MedTech, and many others. Required skills: 2+ years of commercial experience in Node.js, SQL and NoSQL DBs, knowledge of JS frameworks (e.g Express.js, NestJS), experience in TypeScript, SOLID and KISS, knowledge about design and architecture patterns, know how and why Docker and GitHub Actions works, basic usage of AWS services, English B2, Polish C1 Offer: B2B/UZL, paid days off, 100% remote (or hybrid/onsite - as you prefer), Polish time zone, flexible hours, full-time position, long-term contract, Scrum Teams Perks and Benefits: Budgets for self-development, integrations, healthcare & sport activities, Mentoring Program, Individual Career Path, Paid Time Off, Paid Health Break & more Tools you'll use: Apple MacBook Pro, Slack, GSuite, GitHub, Jira, Coda, FigJam Your future tasks and duties: Writing readable and easy-to-maintain JS/TS code with OOP flavor Writing documentation for delivered code Code review of other developers in the team Direct involvement with the design and modification of basic DB structures Propose improvements and share proactive ideas/solutions with the team to enhance the team's work processes Share insights with the team to diagnose issues and focus on solutions Actively participate in project discussions Listen to the client's needs and, after consulting the team, suggest solutions Support less experienced team members About you - Tech skills & Experience: 2+ years of commercial experience in Node.js Good experience with at least one Node.js backend framework (e.g. Express.js, NestJS, Fastify, etc) - you know most of its basic APIs/features, worked on at least 1-2 projects involving such technologies Strong proficiency in TypeScript. You have practical experience with static typing, advanced types, and configuring TS compilers, treating it as your primary language to build robust and type-safe backend applications Potentially worked with NoSQL databases and/or in-memory databases and utilized them as a data store Worked with SQL databases (integration-wise and as a basic design skill) with ORM or query builder tool (ie. Prisma, Knex) Knows the basics of building AI applications (RAG, Agents, etc.) Use AI effectively in their work About you - Soft Skills: English level B2 to cooperate with American clients Polish level C1 to communicate easily within the team Open-minded to new challenges (e.g. different frameworks) Understand the significance of MVP and prioritize the pursuit of excellence and high-quality outcomes, even amid tight project timelines. Communicate with the team to efficiently translate business complexities (user stories/tasks) into solutions (results/estimations) Staying on top with trends/news, sharing them, teaching others and aiming for the best quality solutions Strong problem-solving abilities to diagnose issues, suggest solutions, and make decisions based on project requirements Nice to have: Worked in Agile/Scrum on a daily basis consisting of people with similar skills and monitoring code quality on a daily basis Basic experience with AWS - used some services in specific cases Basic experience with Docker - know how to prepare and debug the environment and connect things up to work locally Worked in the very beginning of the product development/creation stage Understand the significance of MVP and aim to deliver top-notch results, even amid tight project timelines Recruitment process: CV Review Phone call with our Recruiter (15min) Soft-skills interview with our Recruiter (1h) Technical interview with our Specialists (2h) Decision and feedback 🥳 Meaningful projects, top-notch experts and value-driven workplace Sound good? Apply now!

🏢 Summary: Offer for a Mid+ Front-End Developer to build and enhance a global digital platform serving as a central hub for merchants, working 100% on-site in Warsaw under a B2B contract. The role focuses on developing scalable front-end solutions in an Agile Scrum environment, integrating with backend services, and ensuring high application quality through testing and code reviews. The position includes collaboration with cross-functional teams and contributing to continuous improvement of development standards. 🗂️ Requirements: 4-5+ years experience as Front-End Developer, Strong expertise in JavaScript, Strong expertise in TypeScript, Strong expertise in Angular, Strong knowledge of HTML5, Strong knowledge of SCSS, Experience with Git, Experience with GitLab, Experience integrating front-end with APIs, Experience writing unit tests, Experience writing end-to-end tests, Ability to debug complex issues 📃 Skills: JavaScript, TypeScript, Angular, HTML5, SCSS, Git, GitLab, APIs, UnitTesting, E2ETesting, Agile, Scrum 🏢 Description: Start Date: ASAP / Within 1 Month / Flexible Work Model: 100% on site, office in Warsaw Contract Type: 140-170 pln/h B2B We are looking for a Mid+ Front-End Developer to join an international team building a modern digital platform used by customers worldwide to manage and monitor their business through a single point of access. The platform serves as a central hub for delivering products and tools for merchants. You will be working in a collaborative Agile Scrum environment, contributing to high-quality, scalable solutions while continuously improving both the product and development standards. Responsibilities: Develop and enhance front-end features based on business and product requirements Collaborate closely with cross-functional team members including Backend Developers, QA, and Business Analysts Integrate UI components with APIs and ensure seamless communication with backend services Write and maintain unit and end-to-end tests to ensure application stability and quality Participate in code reviews and contribute to continuous improvement of development practices Expectations: At least 4-5 years of experience in a Front-End Developer or similar position Strong expertise in JavaScript/TypeScript, Angular, HTML5, and SCSS Good understanding of version control systems and code review tools such as Git and GitLab Strong analytical and problem-solving skills with the ability to debug complex issues What We Offer: Medicover healthcare package Multisport card Access to an e-learning platform Group life insurance