Frontend Developer

Role description

You will lead the front-end development of a new software product designed to optimize AI inference in production environments. Starting from a clean slate, you will take ownership of architecting and building the application through to its first MVP, with a focus on an intuitive and efficient user experience.

In this role, you will work hand in hand with the design team to translate complex UX and UI concepts into a highly functional, production-ready interface. While there is some flexibility with technology and your input is expected to help establish the final architecture, the team has a strong initial preference for TypeScript, React, and TanStack to build a robust, scalable, and modern foundation for the product.

Assignment: 6 months with a possibility of prolongation

Contract: Permanent (payroll) or freelance (B2B), based on your preference

Visa: Visa support is available only for candidates already residing in Belgium. If you are applying outside of Belgium, you must have EU-wide work authorization.

Work arrangement: 3 days on-site, 2 days flexible

Salary: €60k–€75k gross per year (payroll) or €450-€540 per day (freelance)

Start: immediately

Responsibilities

• Build out the front end of a new software product used in production to optimize AI inference.
• Drive the frontend architecture and development from a clean slate to the first MVP.
• Collaborate closely with our designer to work out, refine, and implement the UX and UI.
• Evaluate, select, and establish the core front-end technology stack and coding standards.
• Write clean, maintainable, and highly performant code using modern frameworks.
• Integrate front-end components seamlessly with backend APIs and AI services.
• Ensure the application is fully responsive, accessible, and optimized for speed and scalability.
• Set up front-end testing, identify and troubleshoot bugs, and deliver a stable, production-ready product.

Main requirements

• 3+ years of experience as a front-end developer in a production environment.
• 3+ years of UX/UI design in a production environment.
• Strong practical familiarity with modern UX/UI principles and implementation.
• Hands-on experience with TypeScript, React, and TanStack, or similar modern front-end technologies.

Other requirements

• Fluent in English.
• Bachelor’s degree in IT, Computer Science, Design, or equivalent proficiency gained through experience (an extra 2-3 years of frontend work experience).

Benefits

• Representation bonus of €140–€200 per month (payroll).