Senior Web Developer

🏢 Summary: Experienced Web Tech Lead role focused on leading the technical direction of a modern web platform, driving architecture decisions, mentoring developers, and improving engineering practices. The position involves working with AI-assisted development tools, optimizing platform performance and scalability, and overseeing deployment, testing, and operational workflows in a hybrid Warsaw-based setup. 🗂️ Requirements: 7+ years of professional web development experience, Expertise in Nest.js, Expertise in Node.js, Expertise in React, Expertise in Next.js, Experience with system design and architectural decisions, Experience with deployment and infrastructure responsibilities, Experience mentoring developers, Experience improving code quality standards, Experience with AI-assisted development tools, Fluent English 📃 Skills: Nest.js, Node.js, React, Next.js, AI, JavaScript, Architecture, Testing, Infrastructure, Deployment 🏢 Description: Web Tech Lead Location: Warsaw, Poland (Hybrid – 3 days in the office, 2 days remote) About Consid Consid is an award-winning IT and consulting company founded in Sweden, with a strong presence across Scandinavia and Europe. We partner with leading organizations to build modern, scalable digital solutions while combining strong engineering culture with long-term collaboration and business impact. About the role We're looking for an experienced Web Tech Lead to join our client's engineering team and lead the technical direction of a modern web platform. In this role, you'll define the architectural direction, mentor developers, and ensure the platform remains technically leading-edge. You'll play a key role in shaping how the platform performs, scales, and evolves while leveraging AI-powered development tools to improve engineering efficiency. Your responsibilities Drive AI-powered workflows by utilizing AI-assisted development tools and autonomous workflows to accelerate iteration, reduce manual effort, and improve team productivity. Own the platform architecture, including database design, deployment pipelines, performance optimization, and incident response. Lead code reviews, improve code quality, reduce technical debt, and establish engineering best practices. Create and maintain technical documentation, support developer onboarding, facilitate knowledge transfer, and promote knowledge sharing across the team. Define testing strategies, enhance automated testing infrastructure, and support bug triage. Mentor developers and help raise engineering standards across the team. Requirements 7+ years of professional web development experience. Deep expertise in Nest.js (Node.js), React, and Next.js . Proven track record of owning architectural decisions and system design. Experience with deployment, infrastructure, and operational responsibilities. Experience mentoring junior developers and improving code quality standards. Strong record of using AI-assisted development tools to improve development speed and quality. Fluent English. Recruitment Process 1.  Screening Call (30 min): A short introductory conversation with our recruitment team to discuss your background, motivation, and role expectations. 2. Cultural Fit Interview: A meeting focused on collaboration style, communication approach, and how you operate in an international environment. 3.  Technical Interview: A deeper technical discussion covering data architecture, analytics engineering, and HR data topics, including a hands-on deep dive relevant to day-to-day responsibilities. 4.  Final Interview (45 min): A concluding conversation focused on behavioural aspects, leadership and ownership mindset, and managerial alignment.

🏢 Summary: Senior .NET Backend Developer role focused on building and maintaining complex, data-driven aftersales and spare parts systems in the automotive sector. The position involves designing scalable backend services, handling structured product and PDM data, and supporting automation and AI-assisted development practices. It requires strong expertise in .NET, complex data models, and test automation in an enterprise environment. 🗂️ Requirements: Strong experience with .NET backend development, Strong understanding of data structures and complex data relationships, Experience with test automation, Experience working with PDM (Product Data Management) data, Ability to work with complex business logic and aftersales data models, Strong problem-solving and analytical skills, Fluent English 📃 Skills: .NET, C#, PDM, SQL, API, REST, Automation, AI 🏢 Description: Senior .NET Backend Developer 📍 Wrocław, Poland 🏢 100% Onsite About Consid Consid is an award-winning IT company founded in Sweden, with a strong presence across Norway, Denmark, Germany, Finland, and Poland. We combine Scandinavian work culture with technical excellence, delivering modern, scalable digital solutions for international clients. At Consid, we believe in collaboration, ownership, and continuous growth. We build strong teams that create meaningful products and make sure our people grow along the way. About the Role We are looking for a Senior .NET Backend Developer to join a team working on complex aftersales and spare parts systems within the automotive sector. The role focuses on developing and maintaining backend solutions responsible for processing and connecting large volumes of product and aftersales data, including article numbers, spare parts information, and related product structures. The environment is highly data-driven and requires strong analytical thinking, understanding of complex system dependencies, and the ability to work with structured product data. The team is actively adopting AI-assisted development practices and automation, with a growing focus on reviewing and validating AI-generated solutions. Your Responsibilities Develop and maintain backend solutions supporting spare parts and aftersales systems. Work with complex product structures, article numbers, and PDM-related data. Design and implement scalable backend services. Ensure high code quality through automated testing and validation. Collaborate with business and technical stakeholders. Support modernization and automation initiatives across the development lifecycle. Requirements Strong experience with .NET backend development. Strong understanding of data structures and complex data relationships. Experience with test automation. Experience working with PDM (Product Data Management) data. Ability to work with complex business logic and aftersales data models. Strong problem-solving and analytical skills. Fluent English. Nice to Have Experience in automotive, manufacturing, or industrial environments. Experience working with spare parts systems or product catalogues. Familiarity with AI-assisted development tools and practices. Experience in enterprise-scale environments. Recruitment Process Application Review – We review your CV and contact selected candidates. Interview with our Recruitment Team (English). Technical Interview – Technical deep dive with the customer. Final Decision and Offer.

🏢 Summary: Fullstack Developer role focused on building and maintaining modern web platforms and CMS solutions using Nest.js, React, and Next.js in a hybrid Warsaw-based environment. The position involves developing new features, improving code quality, writing tests, and collaborating with cross-functional teams on scalable web solutions. Candidates will work with modern development workflows, deployment pipelines, and AI-assisted development tools. 🗂️ Requirements: 3+ years of professional web development experience, Strong knowledge of Nest.js, Strong knowledge of Node.js, Strong knowledge of React, Strong knowledge of Next.js, Experience writing clean, maintainable, and testable code, Experience with code reviews and collaborative development, Experience with version control systems, Experience with deployment pipelines, Familiarity with AI-assisted development tools, Professional proficiency in English 📃 Skills: Nest.js, Node.js, React, Next.js, JavaScript, TypeScript, Git, CI/CD, HTML, CSS 🏢 Description: Fullstack Developer Location: Warsaw, Poland (Hybrid – 3 days in the office, 2 days remote) About Consid At Consid, we believe that great technology starts with great people. As one of the fastest-growing IT consulting companies in the Nordics, we help organizations accelerate their digital transformation by delivering innovative, high-quality software solutions. Our teams work on exciting international projects, combining technical excellence with collaboration, curiosity, and continuous learning. About the role We're looking for a Developer for one of our clients to help build new features and improve code quality across a modern web platform and content management systems. In this role, you'll work within established coding patterns, contribute to feature development, participate in code reviews, and continuously grow your technical expertise through mentorship from the Tech Lead and Senior Developers. You'll play an important role in supporting the client's global brand and marketing initiatives by delivering reliable, scalable, and high-quality web solutions. Your responsibilities Build new functionality from specification through to production within established coding standards and development practices. Develop and maintain backend services using Nest.js (Node.js) and frontend applications using React and Next.js . Investigate, troubleshoot, and resolve bugs while maintaining the existing codebase. Participate in peer code reviews, learn from feedback, and contribute to improving code quality. Write unit and integration tests while following established QA and testing practices. Work with version control systems and deployment pipelines throughout the development lifecycle. Utilize AI-assisted development tools and workflows to accelerate learning, improve productivity, and enhance software quality. Collaborate closely with the Tech Lead, Senior Developers, and cross-functional teams to deliver high-quality solutions. Requirements 3+ years of professional web development experience. Strong foundation in Nest.js (Node.js) for backend development and React / Next.js for frontend development. Experience writing clean, maintainable, and testable code. Experience working within code review disciplines and collaborative development environments. Comfortable working with version control systems and deployment pipelines. Familiarity with AI-assisted development and openness to using AI tools to accelerate development and improve productivity. Strong problem-solving and communication skills. Professional proficiency in English. Recruitment Process 1.  Screening Call (30 min): A short introductory conversation with our recruitment team to discuss your background, motivation, and role expectations. 2. Cultural Fit Interview: A meeting focused on collaboration style, communication approach, and how you operate in an international environment. 3.  Technical Interview: A deeper technical discussion covering data architecture, analytics engineering, and HR data topics, including a hands-on deep dive relevant to day-to-day responsibilities. 4.  Final Interview (45 min): A concluding conversation focused on behavioural aspects, leadership and ownership mindset, and managerial alignment.

🏢 Summary: Hybrid Backend Developer role focused on designing and maintaining scalable backend services using C# and .NET within a complex microservices and integration environment. The position involves architectural discussions, system design, CI/CD processes, and ownership of backend services across the full product lifecycle. You will collaborate cross-functionally and contribute to high-quality, well-tested, and maintainable solutions. 🗂️ Requirements: 7+ years of backend development experience, Strong expertise in C#, Strong expertise in .NET, Experience in system design and architecture, Experience with distributed systems, Experience with system integrations, Strong understanding of CI/CD practices, Experience with unit testing, Experience with Git and pull request workflows, Experience working in Agile environments, Very good spoken and written English, Ability to work independently and take ownership 📃 Skills: C#, .NET, CI/CD, Git, Agile, Microservices, SQL, AWS, Docker, Kubernetes, Linux, Java, Spring, Jenkins, GitHub, Jira, Confluence 🏢 Description: Backend Developer (.NET / C#) 📍 Hybrid – Gdańsk (3 days remote / 2 days office) About Consid Consid is an award-winning IT company founded in Sweden, with a strong presence across Norway, Denmark, Germany, Finland, and Poland. We combine Scandinavian work culture with technical excellence, delivering modern, scalable digital solutions for international clients. At Consid, we believe in collaboration, ownership, and continuous growth. We build strong teams that create meaningful products — and we make sure our people grow along the way. About the Role We are looking for an experienced Backend Developer (.NET / C#) to join a cross-functional product team working with complex digital services and large-scale system integrations. This role goes far beyond coding — you will play a key role in analyzing new features, shaping technical solutions, and taking ownership of backend services across the product lifecycle. The backend team is deeply involved in architectural discussions, refinement sessions, operational support, and collaboration across multiple systems and teams. We are looking for someone proactive, communicative, and technically strong, who enjoys solving complex challenges and contributing to product development from both technical and business perspectives. Your Responsibilities Design, develop, and maintain scalable backend solutions using C# and .NET. Analyze new features and help define technical solutions together with frontend developers and other stakeholders. Take ownership of backend services, including maintenance, operational stability, and incident handling. Collaborate closely with multiple teams and systems in a complex microservices-based environment. Participate actively in refinement sessions, architecture discussions, and technical decision-making. Support and mentor junior developers when needed. Contribute to CI/CD processes, testing strategies, and continuous improvement initiatives. Work proactively, ask questions, and contribute with solution-oriented ideas. Ensure high-quality, maintainable, and well-tested code. Be a communicative and supportive team player with a strong sense of ownership. Must-Have Skills 7+ years of experience in backend development. Strong expertise in C# and .NET. Experience with system design and architecture. Experience working with distributed systems and integrations. Strong understanding of CI/CD practices. Experience with unit testing. Experience with Git and pull request workflows. Experience working in Agile environments. Very good spoken and written English. Ability to work independently and take ownership of technical areas. Nice to Have Experience with Java and Spring Boot. Experience with Docker and Kubernetes. Experience with Linux environments. SQL knowledge. Experience with AWS. Familiarity with GitHub, Jenkins, Jira, and Confluence. Experience working with CMS platforms. Experience using AI-assisted development tools or AI agents. Experience leading smaller teams or acting as a technical role model. Personal Qualities Proactive and solution-oriented. Strong communicator who is not afraid to ask questions. Empathetic and patient. Curious and eager to learn. Quick learner with strong analytical skills. Good listener and collaborative team player. Comfortable working across teams and contributing beyond pure development tasks. Interested in taking ownership and influencing technical direction. Recruitment Process Application Review – We review your CV and contact selected candidates. Interview with our Recruitment Team (English). Technical Interview – Technical deep dive with the customer. Final Decision and Offer.

🏢 Summary: Senior React Developer role focused on building and optimizing modern, scalable web applications using cutting-edge front-end technologies in a hybrid work model. The position involves collaborating with cross-functional teams, implementing micro front-end architectures, and ensuring high-quality code through modern testing practices. It offers the opportunity to drive innovation and continuously enhance technical expertise. 🗂️ Requirements: 5+ years of experience in front-end web development, Strong expertise in React, Strong expertise in TypeScript, Experience with testing frameworks (Jest, Cypress, or Playwright), Experience building responsive, scalable web applications, Familiarity with micro front-end architecture, Knowledge of reactive programming (RxJS), Experience with modern build tools, Experience working in Agile SDLC environments, Legal right to work in the European Union 📃 Skills: React, Angular, TypeScript, JavaScript, Jest, Cypress, Playwright, RxJS, Webpack, Vite, Vitest, SSR, CSS-in-JS, HTML, CSS 🏢 Description: Unleash the Future of Web Applications — Drive Innovation with Cutting-Edge Front-End Technologies! Warsaw-based opportunity with hybrid work model As a Senior Front-End Developer , you will be working for our client, a leader in web application innovation within the technology industry. You’ll contribute to building and executing challenging projects across a variety of initiatives, collaborating closely with stakeholders, UX designers, and development teams to transform requirements into high-impact deliverables. This role offers a unique chance to learn new technologies and continually elevate your skills while shaping the future of digital experiences. Your main responsibilities: Develop and maintain modern, dynamic web applications using React, Angular, and TypeScript. Collaborate with cross-functional teams to translate user requirements into clean, scalable code. Implement best practices in testing using Jest, Cypress, or Playwright to ensure quality and performance. Integrate micro front-end architectures and reactive programming techniques such as RxJS. Optimize applications for maximum speed, scalability, and responsiveness. Contribute to code reviews, documentation, and continuous improvement processes. Leverage modern build tools like Webpack and Vite to streamline development workflows. Stay updated on industry trends and introduce innovative solutions to technical challenges. You're ideal for this role if you have: 5+ years of hands-on experience in front-end web development. Strong expertise in React, Angular, TypeScript, and testing frameworks like Jest, Cypress, or Playwright. Proven ability to deliver rich, responsive web applications with clean code. Familiarity with micro front-end architectures and reactive programming, particularly RxJS. Experience working in agile SDLC environments, including research, design, and engineering phases. Excellent communication skills and ability to manage multiple projects simultaneously. Self-motivated, innovative mindset with strong organizational skills. It is a strong plus if you have: (optional) Bachelor's degree in Computer Science or related field. Experience with SSR, CSS-in-JS, Vite, Vitest, and Webpack. Knowledge of micro front-end development and advanced build pipelines. Language Required for the role: Fluent Polish and 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: Full-time, 100% remote Senior Frontend Developer role focused on building and scaling complex, responsive web applications powered by AI-driven platforms. The position involves architecting high-quality front-end solutions, integrating with back-end services, and ensuring performance, scalability, and cross-browser compatibility. The role also includes driving best practices, code quality, and modern front-end standards within the team. 🗂️ Requirements: Strong knowledge of HTML5, CSS3, JavaScript (ES6), Strong understanding of DOM, Experience with React.js, Experience with Material UI, Experience with Responsive Design and cross-browser compatibility, Familiarity with SASS or LESS, Understanding of BEM methodology, Knowledge of CSS-in-JS, Knowledge of browser storage (cookies, localStorage, sessionStorage), Proficiency with npm or yarn, Experience with Jest or equivalent testing frameworks, Understanding of SEO best practices, Familiarity with TypeScript, Knowledge of SSR and service workers, Experience with Webpack, Vite, or Rollup, Understanding of browser extensions integration 📃 Skills: HTML5, CSS3, JavaScript, ES6, DOM, React, MaterialUI, SASS, LESS, BEM, CSS-in-JS, cookies, localStorage, sessionStorage, npm, yarn, Jest, TypeScript, SSR, Webpack, Vite, Rollup, SEO, ServiceWorkers 🏢 Description: Senior Frontend Developer (100% remote) 💰 Salary: 20,000-23,000 PLN/month 🌎 100% Remote 🕦 Full-time position ☑️ B2B or Contract of Employment We are looking for a Senior Frontend Developer for a partner client that helps businesses use artificial intelligence to run more efficiently and grow faster. The company builds and provides digital platforms and consulting services that enable organizations to manage operations, analyze data, and improve performance. Their solutions combine AI, automation, and deep business expertise to help clients simplify workflows, gain insights, and deliver greater value. Requirements: HTML5 , CSS3 , JavaScript (ES6) Strong understanding of the Document Object Model (DOM) Skilled in Responsive Design and cross-browser compatibility Experience with React.js and Material UI Familiarity with CSS preprocessors such as SASS or LESS Understanding of BEM methodology and CSS-in-JS approaches Knowledge of browser storage mechanisms (cookies, localStorage, sessionStorage) Proficient in using package managers (npm/yarn) Experience in unit testing using Jest or equivalent frameworks Understanding of SEO best practices Familiarity with TypeScript for type-safe, large-scale applications Knowledge of server-side rendering (SSR) and service workers Experience with code bundling and modern module bundlers (e.g., Webpack, Vite, Rollup) Understanding of browser extensions and their integration with web applications Responsibilities: Develop and maintain  complex, responsive user interfaces for large-scale web applications. Architect and integrate front-end components with back-end APIs and services , ensuring security, scalability, and performance. Drive the implementation of pixel-perfect UI/UX designs across browsers and devices. Provide technical mentorship to junior developers and guide the team in adopting modern best practices. Conduct code reviews , enforce standards, and maintain a clean, modular codebase. Evaluate and recommend new frameworks, tools, and libraries to enhance productivity. Manage project timelines, estimate development efforts, and collaborate effectively with cross-functional teams. Maintain comprehensive front-end documentation , design patterns, and style guides. Stay updated with industry trends , emerging technologies, and front-end innovations to continuously improve team capabilities. Participate in architectural discussions , ensuring long-term scalability and maintainability of the front-end ecosystem. Get to know DevsData We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com

🏢 Summary: Senior Front-end Developer role focused on designing and implementing complex user interfaces and single-page applications using modern frontend technologies. The position involves architecting scalable frontend solutions, optimizing performance, and integrating APIs in collaboration with backend and product teams. Hybrid work model with B2B contract in the banking sector. 🗂️ Requirements: Proficiency in HTML, Proficiency in CSS, Proficiency in JavaScript, Proficiency in TypeScript, Experience with Web Components, Experience with Lit, Strong knowledge of Node.js, Experience with npm, Familiarity with Vitest, Experience building single-page applications, Experience integrating REST APIs, Ability to optimize frontend performance 📃 Skills: HTML, CSS, JavaScript, TypeScript, WebComponents, Lit, Nodejs, npm, Vitest 🏢 Description: Industry: Banking Work model: Hybrid in Warsaw, Łódź or Tricity - 3 days a week in the office Rate: up to 150 PLN/h (B2B contract) Introduction & Summary We are seeking a highly skilled Senior Front-end Developer proficient in modern frontend technologies to design and implement complex user interfaces. The ideal candidate should possess extensive experience with HTML, CSS, JavaScript, and TypeScript , alongside capabilities in Web Components. Exceptional collaboration skills are essential as the role involves working closely with various teams to enhance product offerings. Main Responsibilities Architect and implement interactive user interfaces and single-page applications. Establish best practices for application architecture and component reusability. Audit and enhance frontend performance and load times. Collaborate with backend engineers and product teams to integrate APIs. Ensure optimal user experiences across multiple devices. Key Requirements Proficiency in HTML, CSS, JavaScript, TypeScript . Experience with Web Components / Lit . Strong background in Node.js / npm . Familiarity with Vitest . Nice to Have Knowledge of CICD . Experience with Kafka . Familiarity with NinjaFork . Understanding of MQ .

🏢 Summary: Senior Frontend Developer role for a greenfield international project focused on enterprise-grade frontend applications using React and TypeScript. The position involves building advanced UI solutions, integrating APIs, and supporting explainable, auditable workflows in a hybrid B2B setup. Teams work cross-functionally following API-first and event-driven development principles. 🗂️ Requirements: Senior-level frontend development experience, Strong knowledge of React, Strong knowledge of TypeScript, Experience building complex enterprise-grade applications, Hands-on API integration experience, Familiarity with contract-first or API-first development, Experience creating reusable components, Experience working with design systems, Understanding of accessibility standards, Knowledge of responsive design, Knowledge of performance optimisation, Knowledge of usability principles, Experience with frontend testing, Ability to work in cross-functional teams, Strong quality and validation mindset, Fluent Polish, Fluent English 📃 Skills: React, TypeScript, API, HTML, CSS, JavaScript, Testing, Accessibility, Responsive, Performance, DesignSystems 🏢 Description: Cooperation Details Start date: As soon as possible, within 3–4 weeks Contract duration: 12 months initially, with possible extensions Contract type: B2B Working model: Hybrid, with 2 days per week from the Warsaw office and the remaining days remotely Equipment: Laptop provided by the client Travel: Up to one possible business trip per year to the Netherlands or France (paid by the Client) Languages: fluent Polish and English are a must We are looking for a Senior Frontend Developer to join a new initiative delivered for an international client operating in the information services sector. Both projects are greenfield initiatives developed from scratch. Each team will consist of approximately five people, including a Tech Lead, Backend Developer, Frontend Developer, and QA Engineer. Responsibilities Developing frontend applications using React and TypeScript. Building advanced enterprise-grade user interfaces, including dashboards, forms, filters, cards, and drill-down views. Integrating frontend applications with APIs using a contract-first approach. Designing and developing reusable components and solutions based on a design system. Ensuring accessibility, responsiveness, performance, usability, and overall application quality. Implementing explainability-focused UI patterns, including evidence, rationale, confidence levels, and source traceability. Building human review workflows that support approval, rejection, and manual override of system recommendations. Collaborating closely with the Tech Lead, Backend Developers, QA Engineers, and other team members. Contributing to component, UI integration, and regression testing. Working according to spec-driven development, API-first, and event-driven delivery principles. Ensuring auditability, traceability, and explainability by design. Supporting thin vertical slice and steel-thread delivery to validate end-to-end functionality early in the development process. Requirements Senior-level experience in frontend software development. Strong practical knowledge of React and TypeScript. Experience in building complex enterprise-grade applications and user interfaces. Hands-on experience with API integration. Familiarity with contract-first or API-first development. Experience in creating reusable components and working with design systems. Good understanding of accessibility, responsive design, performance optimisation, and usability. Experience with frontend components, integration, and regression testing. Ability to work effectively in a cross-functional product team. Strong quality and validation mindset from the beginning of the development lifecycle. Fluency in Polish and English. Experience in projects involving AI, agentic workflows, human-in-the-loop governance, explainability, or decision-support systems will be considered an advantage.

🏢 Summary: Senior Full Stack Developer role focused on architecting and delivering high-performance web applications using React and Node.js. The position involves leading system design, building scalable front-end and back-end solutions, and overseeing cloud-based deployments and DevOps processes. The role includes technical ownership of microservices, APIs, databases, and application performance in a hybrid Warsaw-based setup. 🗂️ Requirements: 7+ years full stack development experience, 2+ years in senior or technical lead role, Expert-level React.js with Hooks and Redux, Advanced JavaScript ES6+ proficiency, Strong Node.js and Express.js experience, Experience designing REST or GraphQL APIs, Experience with OAuth, JWT, sessions, RBAC, Database design and optimization with PostgreSQL, MySQL, or MongoDB, Hands-on Docker experience, Experience with AWS, Azure, or GCP, CI/CD pipeline management experience, Proficiency with Git workflows, Bachelor’s or Master’s in Computer Science or related field 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, GraphQL, REST, OAuth, JWT, RBAC, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, AWS, Azure, GCP, Git, CI/CD, Webpack, Babel, Vite 🏢 Description: 🧩 About the Company Our client is a rapidly growing US-based technology firm with global operations. With a strong commitment to innovation and quality engineering, the company is building a new engineering hub in Warsaw. This is your opportunity to join a high-performing team and play a pivotal role in developing next-generation digital solutions for the private capital markets. 📍 Location & Setup Start remotely and transition to a hybrid model based in Warsaw (3 days/week in the office in the coming months). 🧠 The Role: Senior Full Stack Developer (React & Node.js) We’re looking for an expert-level Senior Full Stack Developer with at least 7 years of professional experience in designing, architecting, and delivering high-performance web applications. You will take ownership of complex technical challenges across both the front-end and back-end, drive architectural decisions, and provide technical leadership and mentorship within the software development lifecycle. 🔧 Key Responsibilities Technical Leadership: Architect and develop scalable, responsive UIs with React.js, Redux, and modern JavaScript (ES6+). System Design: Design, build, and scale advanced server-side applications, microservices architecture, and RESTful/GraphQL APIs with Node.js and Express. Data Architecture: Lead database design, optimization, and integration strategies (PostgreSQL, MySQL, or MongoDB). Quality Assurance: Define testing strategies, write robust unit/integration tests, and establish efficient debugging protocols for the team. DevOps & Deployment: Oversee and optimize CI/CD pipelines, containerization using Docker, and cloud deployments. Agile Mentorship: Lead agile collaboration with product managers, designers, and engineers, while mentoring mid-level and junior developers. Performance: Proactively monitor system performance, identify bottlenecks, and maintain high-availability production-grade applications. Standards: Establish and maintain comprehensive technical documentation and coding standards. 📌 What We’re Looking For Front-End: Expert-level experience with React.js, Hooks, Redux, and complex component-based architecture. Deep mastery of HTML5, CSS3, and ES6+. Advanced configuration and optimization experience with build tools like Webpack, Babel, or Vite. Back-End: Senior-level proficiency in Node.js & Express.js for enterprise applications. Extensive API design and architecture experience (GraphQL highly preferred, alongside REST). Deep understanding and implementation experience with advanced security and authentication protocols: OAuth, JWT, sessions, and RBAC. Databases & DevOps: Proven experience in scaling and optimizing relational and non-relational databases (PostgreSQL, MySQL, or MongoDB). Solid hands-on experience with Docker; Kubernetes experience is highly advantageous. Demonstrated experience designing and deploying applications on cloud platforms (AWS, Azure, or GCP). Advanced proficiency with Git workflows and driving Agile/Scrum methodologies. 🎓 Qualifications Bachelor’s or Master’s in Computer Science or a related field. 7+ years of hands-on experience in full stack development. 2+ years of experience in a senior or technical lead capacity. Proven track record of architecting, deploying, and maintaining high-traffic production applications. 💡 Soft Skills Strategic, analytical thinker and highly effective problem-solver. Strong technical leadership, team collaboration, and cross-functional communication skills. Self-motivated with excellent time management and the ability to drive projects autonomously. Passion for continuous learning, adopting new technologies, and sharing knowledge with the team. 🎁 What’s Offered Competitive salary up to $6,200 USD/month. Hybrid remote role with 3 days form office in the heart of Warsaw Generous Paid Time Off (PTO). Comprehensive full benefits package. The unique chance to shape the technical foundation of a new engineering hub and lead high-impact projects. A supportive, innovation-driven work environment that values technical excellence.

🏢 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.