Site Reliability Engineer

Aerospacelab; Mont-Saint-Guibert; On-site; EUR 70,000 - 110,000; Full time

Job summary

Aerospacelab is seeking an experienced Site Reliability Engineer to strengthen reliability and performance across our satellite-related services. You will collaborate with Security, Development and Operations teams to implement SRE practices and automate critical workflows.

Engage in incident response, on-call rotations and RCA activities while promoting best practices and continuous improvements in our cloud and on‑prem environments. Fluency in English and French is advantageous.

Qualifications

• Bachelor’s/Master’s/PhD in Computer Science, Engineering or related field.
• Strong knowledge of reliability, DevOps and infrastructure technologies.
• Ability to drive improvements and introduce automation.

Responsibilities

• Provide SRE expertise across projects to boost reliability, performance and operational excellence.
• Communicate clearly between engineering, security, and business teams.
• Offer SRE guidance and best practices within R&D processes.
• Expand knowledge with internal resources and learning opportunities.
• Collaborate with Security, Development and Operations to integrate reliability and observability into service lifecycles.
• Implement SRE principles such as SLIs/SLOs, error budgets, incident management, tooling automation and proactive improvements.
• Contribute to incident response, on‑call rotation, root‑cause analysis and long‑term remediation.

Skills

SRE expertise

DevOps

Reliability engineering

Observability

Education

Master’s/PhD/Bachelor’s in Computer Science or Engineering

Tools

Kubernetes

Docker

Helm

Kustomize

Velero

Kasten

OPA/GateKeeper

Kyverno

Flux/ArgoCD

Jenkins

GitLab CI

GitHub Actions

Terraform

Ansible

Prometheus

Grafana

Vault

Job description

About Aerospacelab

Our mission is supported by an ambitious vertically integrated approach: design & manufacture of small satellites combined with development of earth observation services.

Since its creation in 2018, the company has already grown substantially. Our team gathers more than 25 engineering expertise, from hardware design to software development & data science.

In 2026, Aerospacelab counts offices in Louvain-la-Neuve (Belgium), Toulouse (France), Lausanne (Switzerland) and US West Coast with more than 500 full-time employees, with the ambition to position itself as the European leader in small satellites.

Responsibilities for SRE

• Provide SRE expertise across relevant projects, contributing to reliability, performance, and operational excellence.
• Ensure clear and efficient communication between all relevant stakeholders (engineering, security, business teams, etc.).
• Offer SRE guidance and best practices within internal R&D processes when required.
• Continuously expand knowledge, supported by internal resources and learning opportunities.
• Collaborate closely with Security, Development, and Operations teams to integrate reliability and observability best practices into the entire service lifecycle.
• Implement SRE principles such as SLIs/SLOs, error budgets, incident management, tooling automation, and proactive reliability improvements.
• Contribute to incident response, on‑call rotation, root‑cause analysis, and long‑term remediation to strengthen production environments.

Qualifications for SRE

• Master’s, PhD, or Bachelor’s degree in Computer Science, Engineering, or a related field.
• Creative problem‑solver with strong knowledge of modern reliability, DevOps, and infrastructure technologies.
• Ability to drive improvements, implement process changes, and introduce new tools and automation into the organization.
• Strong organization, communication, and documentation skills, with the ability to convey complex concepts to non‑technical audiences.
• Experience collaborating with a variety of stakeholders across the organization.
• Understanding of secure coding practices and modern security frameworks (e.g., NIST, OWASP).
• Familiarity with SRE methodologies such as observability, automation, performance engineering, system design, and reliability metrics.

Technical skills

• Experience with cloud and on‑premise infrastructure environments.
• Experience with container platforms such as Kubernetes; experience with Tanzu is a plus.
• Experience with Docker and containerization.
• Experience with packaging and config (e.g., Helm, Kustomize, etc).
• Experience with Backup/DR for clusters and workloads (e.g., Velero, Kasten, etc).
• Experience with policy as code(e.g., OPA/GateKeeper, Kyverno, etc).
• Experience with Performance and reliability testing is a plus (e.g., k6).
• Understanding and application of GitOps principles and tooling (e.g., declarative configurations, automated reconciliation, and continuous delivery, Flux, ArgoCD, etc).
• Experience with cloud providers (certifications are an asset).
• Knowledge of databases (NoSQL, SQL, Postgres, MongoDB, etc.) is a plus.
• Experience with programming languages such as Python, Java, or C/C++/C# is a plus.
• Experience with CI/CD tools (e.g., Jenkins, GitLab, GitHub Actions).
• Experience with Git, branching strategies, and version control best practices.
• Experience with Infrastructure as Code tooling (e.g., Terraform, Ansible).
• Experience with Linux system administration, troubleshooting, and performance tuning.
• Experience with big data technologies (e.g., Azure Data Factory, AWS Data Pipeline, GCP Dataflow) is a plus.
• Knowledge of distributed systems, load balancing, networking, and storage.
• Experience with monitoring/observability, alerting, logging, and automation tools (e.g., Prometheus, Grafana, Alloy, Mimir, Loki, etc).
• Understanding of container security, IAM, and secrets management (e.g., Vault, AWS Secrets Manager).
• Knowledge of French and English.