MentionLab
Full Stack Engineer
MentionLabBelgium22 hours ago
Full-timeEngineering, Information Technology
About MentionLab

We're building tools that help brands understand how AI sees them. Think AI SEO analytics, real-time monitoring, and actionable insights. We're early stage, moving fast, and looking for someone who wants to build cool things.

We’re building the tech that ensures your brand shows up in AI answers, not just search results.

Measure how AI talks about brands, media, and institutions, benchmark against competitors and peers, and drive real visibility where consumers now ask for recommendations.

We’re moving fast in one of the most transformational shifts in discovery, and we’re looking for people who want to build incredible things with us.


What you'll be doing
  • Ship features across our stack—backend APIs, frontend interfaces, data pipelines, infrastructure (we’re small, you’ll be early, we need flexibility)
  • Work with TypeScript, SQL, and (some) Rust to handle everything from user-facing features to heavy data processing
  • Own parts of the product, from conception to deployment
  • Review code, share ideas, and help shape our technical direction
  • Wear multiple hats (because startup)


What we need from you
  • 2+ years of software engineering experience
  • Strong knowledge of TypeScript, Rust, and SQL
  • Ability to move between frontend and backend work comfortably
  • Proactive mindset - spot issues, propose solutions, don't wait to be told
  • Comfort with code reviews and constructive feedback
  • French required, English proficiency


Nice to have
  • Experience with React, NestJS, PostgreSQL, Redis
  • Self-hosting or infrastructure knowledge (Docker / Kubernetes)
  • Previous startup experience


You'll thrive here if
  • You enjoy figuring things out and don't need hand-holding
  • You're comfortable with ambiguity and changing priorities
  • You like collaborating and sharing what you learn
  • You care about code quality but know when to ship fast
  • You're excited about AI and its impact on how people find information


Languages

Must speak French. English working level required for documentation and some meetings.


What we offer
  • Permanent contract (CDI) - 38h/week
  • Fair salary package, including a car/mobility budget, insurances, etc.
  • Dynamic workplace - young and ambitious
  • A chance to shape the technological part of the company
  • High level of autonomy with guidance when needed (you’re not alone!)


Interview Process
  1. Quick online chat with Martin - 30min
  2. Deep-dive technical discussion (preferred on-site) - 1 hour
  3. (Management meeting - 30min)

→ Receive a response fast (positive or negative, we won’t ghost you!)


Interested?

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