Senior Full-Stack Developer

Senior Full-Stack Developer About the role This is a hands‑on senior position where you'll play a key role in shaping the technical direction of a growing product. You'll combine architecture and technical leadership responsibilities with active software development, working closely with the product and stakeholders. What you'll do Take end-to-end technical ownership of a core product, from architecture through to delivery and ongoing evolution. Help drive technical decision-making and contribute to scalable, maintainable system design. Build and maintain applications across the full technology stack, including backend services, frontend experiences, APIs, and third‑party integrations. Support the transition of platform knowledge from external partners to the internal team, ensuring long‑term ownership and sustainability. Establish and promote engineering best practices while mentoring and supporting other developers. Collaborate with stakeholders and end users to understand product usage, identify challenges, and translate business needs into technical solutions. Work closely with product and design teams to help shape the product roadmap and user experience. Must have 6+ years of professional software development experience. Strong experience building and maintaining modern web applications across both frontend and backend environments. Proficiency in modern programming languages and frameworks used for full‑stack development. Experience designing scalable, maintainable software systems and contributing to application architecture. Proven ability to lead technical discussions and make architectural decisions. Comfortable balancing hands‑on development with technical leadership responsibilities. Experience working with APIs, integrations, and distributed systems. Familiarity with containerization technologies and cloud‑based development practices. Experience working with relational databases and data modeling. Should have Experience with cloud platforms and modern software delivery practices, including automation, CI/CD, infrastructure management, and monitoring. Knowledge of Dutch or French, in addition to English. Nice to have Exposure to multiple programming languages, frameworks, or technology ecosystems. Experience working in regulated industries such as financial services, compliance, healthcare, insurance, or similar domains. Experience scaling products in a high‑growth or startup environment. GCS is acting as an Employment Agency in relation to this vacancy. #J-18808-Ljbffr GCS Recruitment