PROJECT INFORMATION:Client: start-up from Denmark, platforms handling administrative tasks for freelancersRemote work: 100%Project language: EnglishBusiness trips: some, 2-3 per quarter, possible onboarding in DenmarkProject length: 12-month contracts + prolongationsStart: ASAPAssignment type: B2BRemuneration: 110-135 PLN/h netto + VATSummary: This role involves joining a small, agile team of developers to enhance the platform, focusing on both client-side and server-side development to improve the user experience for freelancers.Main Responsibilities: As a Full Stack Developer, you will be responsible for creating and maintaining the systems that enable a seamless user experience: Collaborate with development teams and product managers to ideate software solutions Implement client-side and server-side architecture Build visually appealing and responsive front-end applications Develop and maintain well-functioning databases and applications Create and maintain APIs Test software to ensure responsiveness and efficiency Debug, troubleshoot, and upgrade software as needed Contribute to security and data protection best practices Support mobile responsive design across the platform Assist in writing technical documentation

Work with customer success and business teams to enhance software features

Key Requirements: Proven experience as a Full Stack Developer or in a similar role Experience developing web applications Familiarity with the Next.js framework, including Node.js and React Solid knowledge of front-end languages and libraries (e.g. Bootstrap, React, Tailwind) Understanding of back-end languages (e.g. Node) Experience with databases (e.g. PostgreSQL) and cloud infrastructure (e.g. AWS, Docker) Strong communication and teamwork skills High attention to detail and organisational abilities Analytical mindset

Degree in Computer Science, Statistics, or a relevant field

Nice to Have: Experience with agile development methodologies Familiarity with DevOps tools and practices Knowledge of UX/UI design principles

Previous experience in a startup environment

We offer: Long-term cooperation. Transparently built relations based on trust and fair play. Co-financed benefits: Medicover card, Multisport card.