Frontend Developer with React (f/m/x)

🏢 Summary: Talent pool opportunity for Frontend Developers at junior through senior levels, with future recruitment processes matched to candidates’ skills and available roles. The role involves building responsive Angular and React applications, maintaining code quality, and integrating frontend solutions with backend services. 🗂️ Requirements: Polish proficiency, Based in Poland, Angular experience, React experience, Modern frontend architecture knowledge, Frontend best-practices knowledge, English proficiency (B2 minimum) 📃 Skills: Angular, React, Testing 🏢 Description: This posting is part of a Talent Pool for the Frontend Developer role. Submitted applications will be used to enable a quick response to future business needs. We will contact selected candidates only when a relevant recruitment process is initiated Responsibilities: Develop and maintain frontend applications using Angular and React . Implement responsive and performant user interfaces based on project requirements. Ensure code quality through testing, code reviews, and adherence to frontend best practices. Collaborate with cross-functional teams to integrate frontend solutions with backend services. Requirements: We welcome candidates across different experience levels – from Junior to Senior. Your responsibilities and seniority will be matched to your skills, experience, and available opportunities. Polish language proficiency (mandatory) Based in Poland (remote work from Poland or on-site in Poland) Hands-on experience with Angular and React Good understanding of modern frontend architecture and best practices English proficiency at minimum B2 level (upper-intermediate) Nice to have: Experience working with AWS (Amazon Web Services) German language skills Benefits: Flexible forms of employment and working hours (CoE or B2B) An interesting, challenging job in the dynamically developing Capital Group company; Work on innovative projects using modern technologies; Direct impact on shaping the image of the Capital Group’s companies on the market; Possibility to develop competences in a wide range; Attractive salary; Stability of employment and a friendly work atmosphere; Cool benefits, among others integration meetings, internal company competitions, fruit Tuesdays, sweet Thursdays and much more;

🏢 Summary: Senior Frontend Engineer role building enterprise AI interfaces and production Next.js applications with complex state, real-time functionality, and scalable frontend architecture. The position is fully on-site in Warsaw city centre, five days per week, with responsibility for UI quality, performance, accessibility, and enterprise-grade features. 🗂️ Requirements: Work on-site in Warsaw city centre 5 days per week, 5+ years of frontend development experience, 3+ years of React and TypeScript experience, Production Next.js experience, App Router and Server Components expertise, SSR, SSG and CSR knowledge, Complex state-management experience, Real-time and multi-tenant application experience, AI or LLM interface experience, Frontend performance and Core Web Vitals expertise, Accessibility, localization and frontend security knowledge, Experience handling sensitive data, Experience using AI coding assistants 📃 Skills: React, TypeScript, Next.js, SSR, SSG, CSR, LLM, AI, CoreWebVitals, Accessibility, Localization, Security, Claude, Codex, Copilot 🏢 Description: Please note: This role requires working from our office in Warsaw city centre 5 days a week . This is a fully on-site position , and remote or hybrid work is not available . About us We believe that businesses are moving toward AI-powered work, and we are building a platform for this future. Many AI agents cannot handle complex business tasks. We created a platform that organizes company policies, workflows, and business knowledge into one AI data model. This helps AI agents make accurate decisions and deliver reliable results at scale. We already work with well-known enterprise customers such as Glovo, Nespresso, and HelloFresh. Our platform supports thousands of users and processes real production data. Customers trust us with important business knowledge because we provide a secure and reliable solution with SOC2, HIPAA-ready security practices, and strong integrations. Job description We are looking for a Senior Frontend Engineer who enjoys building high-quality user interfaces for enterprise AI products. In this role, you will design and build important frontend features, solve complex UI problems, and improve the user experience over time. You will take ownership of frontend architecture and help build production Next.js applications with complex state management, real-time AI features, and enterprise functionality. The position is based in Warsaw and requires working from the office. Responsibilities Design and build production Next.js applications that support complex state, high traffic, and real-time AI features. Create user interfaces for AI-powered tools, including streaming AI responses, semantic search, knowledge graphs, and AI agents. Build and improve our component library and design system to keep the user experience consistent, accessible, and reusable. Deliver enterprise features such as localization, accessibility, browser compatibility, and security. Monitor applications after release, improve performance, reduce bundle size, track Core Web Vitals, and help systems scale. Maintain high engineering standards through code reviews, testing, and mentoring other developers. Requirements More than 5 years of frontend development experience, including at least 3 years working with React and modern TypeScript. Strong experience building production applications with Next.js, including App Router, Server Components, and understanding SSR, SSG, and CSR. Experience managing complex application state, including real-time updates, optimistic UI, multi-tenant systems, and large amounts of data. Experience building AI or LLM-based interfaces such as chat applications, streaming responses, or semantic search. Strong knowledge of frontend performance and experience improving Core Web Vitals in large applications. Good understanding of accessibility, localization, security, and enterprise application standards. A security-focused approach and experience working with sensitive data. Strong product thinking and the ability to improve user experience without waiting for detailed designs. Experience using AI coding assistants as part of your daily development work. Good written and spoken communication skills and the ability to explain technical decisions clearly. Nice to have Experience with React Flow, Highcharts, or other data visualization libraries. Experience building vector search, RAG, generative AI, or semantic search interfaces. Basic knowledge of Node.js or Python to understand backend code and APIs. Experience contributing to design systems or open-source UI libraries. What we offer B2B contract and company stock options. MacBook Pro. Modern technology stack and the opportunity to contribute to open-source projects. An AI-focused development environment with tools such as Claude Code, OpenAI Codex, and GitHub Copilot. Our values Our leadership team has strong experience in AI, knowledge management, and enterprise SaaS. We have received more than $60 million in funding and have been recognized by Gartner as a Cool Vendor. Our work is guided by these values: Quality – We care about excellent work and high standards in everything we build. Momentum – We take initiative, share ideas, and keep moving forward. Accountability – We take responsibility for our work and give honest, respectful feedback. Hard work – We believe success comes from teamwork, dedication, and consistent effort. Learning agility – We stay curious, learn from mistakes, and continue improving. Adapt and thrive – We welcome change and see challenges as opportunities to grow. Win together – We work as one team, communicate openly, and support our shared goals.

🏢 Summary: Frontend role on a renewable energy platform focused on building modern React interfaces in a monorepo, with opportunities to contribute to backend work and technical decisions. The offer targets Junior+/Mid developers, including juniors with at least one year of commercial experience, in a hybrid cooperation model. 🗂️ Requirements: 1+ year of commercial frontend experience, React experience, Willingness to support backend tasks, PostgreSQL or MySQL knowledge, API experience, B2 English, Git proficiency, Git-flow proficiency 📃 Skills: React, PostgreSQL, MySQL, APIs, Git, Gitflow 🏢 Description: 🔥 Frontend Developer Wanted - Energize Our Renewable Energy Platform! 🔥 Hey, are you a Frontend enthusiast ready to code for a cause? We're on a mission to revolutionize renewable energy and need your expertise to accelerate our impact. Dive into a cooperation where your coding fuels sustainability and your decisions shape the future. We’re mainly looking for Junior+/ Mid-level developers , but we’re also open to Juniors with at least 1 year of commercial experience . Scope of service: Building Outstanding Interfaces : Use your React expertise to develop modern, intuitive, and user-friendly interfaces within our monorepo architecture. Quality-First Development : Write clean and maintainable code with a focus on unit testing to ensure scalability and reliability. Collaborating Across the Stack : While your focus will be frontend, you’ll also have the chance to contribute to backend development. Shaping the Future : Be involved in architectural decisions, tool selection, and best practices to ensure technical excellence. Teamwork that Matters : Work closely with the client and the team to deliver solutions that make a real impact on sustainability. Requirements: Frontend Experience : 2 years of experience in frontend development (React as your main tool). Openness to Backend : Willingness to occasionally work on backend tasks. Database Knowledge : Familiarity with PostgreSQL or MySQL. API Savvy : Solid experience working with APIs. Communication Skills : Strong collaboration abilities and at least a B2 level of English. Version Control : Proficiency with git and the git-flow process. Nice to have: Experience with Ruby on Rail or different backend technologies Familiarity with Postgresql  Cooperation mode : hybrid cooperation; on-site coordination possible/as needed.

🏢 Summary: Oferta dla doświadczonego Frontend Developera odpowiedzialnego za rozwój i utrzymanie nowoczesnych aplikacji oraz serwisów internetowych. Rola obejmuje tworzenie responsywnych interfejsów, integracje z backendem oraz dbanie o jakość, wydajność i doświadczenie użytkownika. Po okresie próbnym możliwa jest praca hybrydowa. 🗂️ Requirements: Minimum 2 lata doświadczenia komercyjnego, Bardzo dobra znajomość HTML, CSS i JavaScript, Doświadczenie z React lub Angular, Doświadczenie z TypeScript/JavaScript, Doświadczenie z Git, Doświadczenie z RESTful API i integracją usług backendowych, Znajomość zasad projektowania aplikacji webowych, Doświadczenie we współpracy z UX/UI przy responsywnych interfejsach, Umiejętność projektowania graficznego w Figma 📃 Skills: HTML, CSS, JavaScript, React, Angular, TypeScript, Git, REST, UX, UI, Figma 🏢 Description: 📍 Miejsce pracy: Okres próbny odbywa się w 100% stacjonarnie w naszym biurze (Łódź, Zgierska 249A).🏢 Po jego zakończeniu oferujemy pracę w modelu hybrydowym (elastycznie, do indywidualnego ustalenia) Do naszego zespołu poszukujemy doświadczonego Frontend Developera, który będzie odpowiedzialny za rozwój i utrzymanie nowoczesnych aplikacji oraz serwisów internetowych. Szukamy osoby, która nie tylko dobrze zna technologie frontendowe, ale również zwraca uwagę na jakość kodu, wydajność i doświadczenia użytkowników. Jeśli lubisz pracować nad realnymi projektami, cenisz samodzielność i chcesz mieć wpływ na rozwój produktów – zapraszamy do aplikowania. Wymagania: Bardzo dobra znajomość HTML, CSS i JavaScript Doświadczenie w pracy z React, Angular, Typescript/JavaScript, HTML, CSS Doświadczenie z Git Doświadczenie w pracy z RESTful API i integracji z usługami backendowymi Zrozumienie kluczowych zasad projektowania opartych na sieci web Doświadczenie w pracy z UX/UI przy tworzeniu responsywnych interfejsów użytkownika Umiejętność projektowania graficznego w Figmie Minimum 2 lata doświadczenia komercyjnego Mile widziana znajomość WEBAPI, HTTPS, NODEJS Oferujemy atrakcyjne wynagrodzenie adekwatne do doświadczenia, możliwość pracy w modelu hybrydowym po zakończeniu okresu próbnego, udział w ciekawych projektach realizowanych wewnętrznie, realny wpływ na rozwój produktów i wdrażane rozwiązania, pracę w zgranym zespole specjalistów i przyjazną atmosferę.