Performance Engineer
📍 Hybrid – Belgium | 💼 Full-time (CDI preferred)
Join a fast-growing SaaS company using AI & big data to help pharma companies detect and fix risks in clinical trials.
We’re looking for a Senior Performance Engineer to take the lead on performance testing, observability, and system optimization within a dynamic product team.
🧠 What You’ll Be Working On
As our Senior Performance Engineer, you’ll be the go-to expert ensuring our systems run smoothly at scale. You'll collaborate with engineering, architecture, and DevOps to build a high-performance, observable platform that supports thousands of users globally.
You will:
✅ Design, evolve and implement performance testing and observability frameworks
✅ Build and maintain monitoring dashboards using Grafana, DataDog, Splunk, etc.
✅ Run and analyze load & stress tests to identify bottlenecks and define optimization strategies
✅ Partner with development teams to improve code and infrastructure performance
✅ Integrate observability into our CI/CD pipelines (GitLab CI, Jenkins, GitHub Actions)
✅ Continuously monitor and tune backend systems, databases, and cloud infrastructure
🔧 Tech Environment You’ll Dive Into
You don’t need experience with everything on this list, but you should feel at home with a modern DevOps / performance engineering stack:
* Load Testing & Profiling: K6, Gatling, JMeter, LoadRunner, Blazemeter
* Observability & APM Tools: Grafana, Prometheus, DataDog, Splunk, Dynatrace, New Relic
* Automation & DevOps: Docker, Kubernetes, Linux, GitLab CI/CD, GitHub Actions
* Languages & Scripting: Python, TypeScript, JavaScript, Bash
* Database Tuning: Strong understanding of SQL and system metrics
🧬 What We’re Looking For
* 🎓 Degree in Computer Science, Engineering, or related field
* 💼 5+ years of experience in performance engineering, systems monitoring, or site reliability
* 🧠 Strong analytical skills with a passion for performance tuning and system design
* 💬 Collaborative team player with clear communication skills across functions
* 🚀 Proactive mindset – you love solving complex problems and making systems better
💡 Why Join Us?
🌍 Impact: Help reshape clinical trials through tech innovation
🛠 Autonomy: Be the performance expert driving strategic decisions
👥 Culture: Collaborative, cross-functional teams that support continuous learning
🏡 Flexibility: Hybrid model with 1 day onsite, rest remote
📈 Growth: Join a growing company investing heavily in its tech and people
💰 Competitive Compensation: Salary + mobility budget, meal vouchers, insurance & more
📃 Contract Type: Permanent full-time
📩 Interested?
Let’s talk!
Whether you're currently exploring new opportunities or just curious, we’d love to connect.