Technical Lead Read description

Mastering React, Vue, and Node.js on AWS.

Architecting the system, mentoring the team.

Supersonic is a technology-driven digital commerce agency, rooted in MACH principles and powered by modern cloud infrastructure. Digital innovation is in our DNA. We build flexible, composable commerce ecosystems for ambitious companies, combining deep technical expertise with a pragmatic approach that truly delivers.

We’re growing. Fast. And that’s exactly why we’re looking for a Technical Lead who helps shape our technical direction, strengthens our teams, and ensures our platforms are built for speed , scalability , and long-term impact .

As a Technical Lead, you are the technical compass within your project team. You define architectural direction, think ahead, support developers through complex challenges, and safeguard the quality of critical implementations. You maintain high velocity without compromising on quality.

You move effortlessly between strategic thinking and hands-on problem solving . But just as important: you coach people. You help engineers grow, challenge them to raise the bar, and create an environment where autonomy and craftsmanship are simply the standard.

Here, you get the space to make real impact, on technology , on projects , and on people .

Responsibilities

• Defining scalable architectures for composable commerce solutions.
• Translating business requirements into sustainable, future-proof technical designs.
• Supporting and unblocking development teams while providing clear technical direction.
• Collaborating with architects, analysts, and project managers to keep projects aligned and on track.
• Contributing to best practices, internal tooling, and supersonic’s long-term engineering vision.

Qualifications

• Proven experience as a Technical Lead, Lead Developer, or Software Architect.
• Strong knowledge of modern web architectures and cloud platforms (AWS/Azure).
• Hands-on expertise with React/Next.js or Vue/Nuxt.js, plus Java and/or Node.js.
• A practical, hands-on mindset with a strong focus on coaching and team development.
• Bonus: Experience with MACH architectures, serverless technologies, performance optimisation, or DevOps practices.
• Clear and effective communication
• Strong sense of ownership and accountability
• Collaborative mindset and natural leadership
• Calm, structured, and decisive in fast-moving environments
• Growth mindset and eagerness to continuously improve

What we have to offer

Join supersonic

Supersonic’s an exciting and fun workplace with anenthusiastic, motivated team that fosters knowledgeand values trust. With supersonic as your family,you will become part of a fast-growing, passionateand eager team, within the innovation incubatorXplore Group. Being part of the Cronos Group,Supersonic has offices in Kontich, Eindhoven,Valencia and headquarters at the Corda Campus inHasselt.

Company car with Benelux fuel card

Laptop (MacBook Pro or Dell)

Lunch compensation and daily supply of espresso, fruit, candy, soup and more.

In-house workshops and training courses will keep you inspired and aware of the newest technologies.

Awesome team events

Enough paid time off to get you reloaded for the job!

Hybrid working. Work from your fully equiped home office or join us in Hasselt or Kontich.

• Proven experience as a Technical Lead, Lead Developer, or Software Architect.
• Strong knowledge of modern web architectures and cloud platforms (AWS/Azure).
• Hands-on expertise with React/Next.js or Vue/Nuxt.js, plus Java and/or Node.js.
• A practical, hands-on mindset with a strong focus on coaching and team development.
• Bonus: Experience with MACH architectures, serverless technologies, performance optimisation, or DevOps practices.
• Clear and effective communication
• Strong sense of ownership and accountability
• Collaborative mindset and natural leadership
• Calm, structured, and decisive in fast-moving environments
• Growth mindset and eagerness to continuously improve

Supersonic’s an exciting and fun workplace with anenthusiastic, motivated team that fosters knowledgeand values trust. With supersonic as your family,you will become part of a fast-growing, passionateand eager team, within the innovation incubatorXplore Group. Being part of the Cronos Group,Supersonic has offices in Kontich, Eindhoven,Valencia and headquarters at the Corda Campus inHasselt.

Company car with Benelux fuel card

Laptop (MacBook Pro or Dell)

Lunch compensation and daily supply of espresso, fruit, candy, soup and more.

In-house workshops and training courses will keep you inspired and aware of the newest technologies.

Awesome team events

Enough paid time off to get you reloaded for the job!

Hybrid working. Work from your fully equiped home office or join us in Hasselt or Kontich.

Supersonic is a technology-driven digital commerce agency, rooted in MACH principles and powered by modern cloud infrastructure. Digital innovation is in our DNA. We build flexible, composable commerce ecosystems for ambitious companies, combining deep technical expertise with a pragmatic approach that truly delivers.