Senior Freelance Developer – 5‑Month Project in Gent

About the role

We are looking for a Senior Freelance Developer to join a 5‑month project for a client in Gent, Belgium. This role offers the chance to lead a team, shape high‑impact web applications, and drive technical excellence in a fast‑moving environment.

Key responsibilities

• Lead the design, development, and delivery of advanced web‑based applications in production.
• Coach and mentor a team of developers, fostering ownership and technical excellence.
• Implement user‑friendly, machine‑readable web layers using semantic HTML and hypermedia interactions.
• Develop and integrate robust APIs, ensuring maintainable system connections.
• Champion performant, maintainable frontend delivery without unnecessary framework complexity.
• Execute coding, testing, debugging, and optimization tasks efficiently.
• Participate actively in Agile ceremonies, including sprint planning, reviews, and continuous improvement.
• Contribute to backend or full‑stack development as needed to ensure end‑to‑end solution integrity.

Required profile

• Senior‑level experience as a frontend developer in production environments.
• Proven track record in API development and integration.
• Hands‑on experience with multiple frontend frameworks.
• Deep understanding of semantic HTML, hypermedia, and web standards.
• Demonstrated ability to lead development teams and coach developers.
• Strong knowledge of Agile methodologies and a builder mindset.
• Fluent Dutch at CEFR C2 level (required).

Required skills

• Frontend development
• API development and integration
• Multiple frontend frameworks
• Semantic HTML
• Hypermedia
• Web standards
• Agile development
• Full‑stack development (strong plus)