Senior Full-Stack Developer

Reference: AS15_1784898383

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.

COMPETITIVE SALARY

Belgium

Full Time

Added 24/07/2026
Reference: AS15_1784898383

Senior Full-Stack Developer

Belgium
Full Time

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