Lead Software Engineer - Hands-on, Scalable AI Testing

OMP; Antwerpen; On-site; EUR 90,000 - 130,000; Full time

Job summary

Greenhouse Software, Inc. is seeking a lead software engineer to design, build, and operate high‑performance, scalable systems. This hands‑on role combines deep technical expertise with mentorship and ownership of production impact.

You will mentor teammates, refine requirements with product analysts, push quality left with AI‑based testing, and embed observability so the team runs with confidence. The role emphasizes delivering reliable software in production and collaborating across components

Qualifications

• Designing and building scalable solutions with a strong focus on performance and maintainability.
• Ownership of delivery from design to production and running what you ship.
• Mentoring engineers and upholding quality in production.

Responsibilities

• Designing and building scalable solutions with a strong focus on performance, maintainability, and cross-component integration.
• Taking ownership of delivery from design to production, and living "you build it, you run it", so your team owns what it ships and keeps it reliable in production.
• Staying hands-on in the code while keeping delivery on track: unblocking the team, holding the bar on quality, and mentoring fellow engineers.
• Challenging and refining requirements with product analysts to ensure clarity, feasibility, and delivery readiness.
• Owning technical correctness, including performance and scalability.
• You shift quality left and reimagine how QA is done, building AI-based testing frameworks that deliver strong automation and fast feedback so issues surface early. This covers the fullrange of testing: performance, load, spike, soak, and security testing.
• Building observability into the software as a core principle, so your team can run it with confidence and catch issues before customers do.

Job description

Greenhouse Software, Inc. is seeking a lead software engineer to design, build, and operate high‑performance, scalable systems. This hands‑on role combines deep technical expertise with mentorship and ownership of production impact.

You will mentor teammates, refine requirements with product analysts, push quality left with AI‑based testing, and embed observability so the team runs with confidence. The role emphasizes delivering reliable software in production and collaborating across components