Senior Fullstack Developer with React and Node.js, Digital Experience Platform

We are considering candidates located only in Poland.Project overviewYou will contribute to a platform focused on delivering a seamless and scalable digital experience for users across multiple business journeys. The project involves the design of modern interfaces and the development of reliable backend services that support high quality user flows. The environment encourages continuous improvement and modern engineering practices.Position overviewIn this role, you will be responsible for designing and implementing fullstack solutions that support a modern digital experience platform. You will work across React and Node.js, take ownership of key architectural decisions, and ensure high quality delivery across the frontend and backend. This position involves close collaboration with product and design contributors, active participation in system design discussions, and guidance for mid level and junior specialists. The environment encourages technical initiative, continuous improvement, and scalable engineering practices.Technology stackReact, TypeScript, Redux, Zustand, RTK, MobX, Next.js, Vite, Webpack, CSS in JS, Tailwind, SCSS, Jest, React Testing Library, Cypress, Node.js, Express, NestJS, Fastify, REST API, GraphQL, JWT, OAuth, sessions, WebSockets, PostgreSQL, MySQL, MongoDB, Redis, Prisma, TypeORM, Sequelize, Docker, GitHub Actions, GitLab CI, AWS, GCP, Azure, Render, Vercel, Railway, DataDog, SentryResponsibilitiesDesign and implement scalable fullstack solutions using React and Node.js.Lead frontend architecture including state management, performance, and reusable patterns.Design backend APIs and services for REST or GraphQL.Work with SQL and NoSQL databases to support application functionality.Participate in architectural discussions and contribute to code reviews.Optimize system performance and scalability across the stack.Implement secure authentication and authorization approaches.Work with CI CD processes and cloud based deployments.Mentor mid level and junior specialists.Collaborate with product and design contributors to support user centered delivery.RequirementsExperience implementing fullstack applications using React and Node.js.Experience designing REST APIs and familiarity with GraphQL.Experience with TypeScript and modern frontend tooling.Experience with SQL or NoSQL databases including PostgreSQL, MySQL, MongoDB, or Redis.Experience working with Docker and CI CD workflows.Experience with cloud environments such as AWS, GCP, or Azure.Experience participating in Agile or Scrum teams.Experience applying architectural practices including Clean Architecture, SOLID, and design patterns.Fluency in English for collaboration and documentation.Nice to haveExperience with Next.js for server side rendering and hybrid applications.Experience with WebSockets.Experience with Prisma, TypeORM, or Sequelize.Experience with monitoring approaches including DataDog or Sentry.Experience applying TDD or BDD.What We Offer:Vacation days: Up to 26 business days per year.10 illness/special days off per year (fully paid, no medical papers needed) for all contract typesHealth and life insurance (Luxmed)MyBenefit platform with Multisport optionInternal psychological support serviceEnglish language classes from the first working dayAccess to external learning platforms: O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal trainingFlexible workplace: work from the office, from home, or choose a hybrid optionTech Skills Mentoring ProgramOpportunities to develop as a public speaker, mentor, or technical interviewerFully paid idle (bench) when not involved in a projectCertification reimbursement (AWS, GCP, Microsoft, etc.)