L2 engineer (m/f/n)

We are looking for a L2 engineer for an EU organization based in Luxembourg, specializing in reverse proxy services (NGINX) and infrastructure automation.

Core Technical Skills:

• Strong experience with NGINX (reverse proxy): routing, upstreams, SSL, debugging
• Good knowledge of HTTP/HTTPS protocols

Automation & Scripting:

• Python (scripting, API interactions, tooling)
• Ansible (playbooks, roles, automation design)

Infrastructure & Tools:

• Experience with NetBox (or similar CMDB / source of truth)
• Strong experience with GitLab: Git workflows, CI/CD pipelines

Troubleshooting & Operations:

• Solid understanding of Linux systems
• Networking fundamentals (TCP/IP, DNS, TLS)
• Ability to analyze logs and metrics

Nice to Have:

• Experience with reverse proxy migration (e.g., Bluecoat → NGINX)
• Experience with containerized environments (Docker / Kubernetes)
• Experience with WAF technologies (ModSecurity or equivalent)
• Familiarity with ITIL processes (Incident, Problem, Change)
• Familiarity with monitoring tools (Prometheus, Grafana, Splunk)

Additional Requirements:

• EU citizenship
• About 3–7 years’ experience in system/network engineering or DevOps
• Experience in production environments (L2/L3 support)
• Strong interest in automation and service industrialization
• Fluency in English (written and spoken) is required; proficiency in any other European language is a plus

Operations & Support (L2):

• Handle incidents, requests, and problem management related to reverse proxy services
• Perform root cause analysis and implement sustainable fixes
• Support L1 teams with clear SOPs and escalation guidance
• Ensure service availability, performance, and security compliance

Reverse Proxy Management:

• Configure and operate NGINX-based reverse proxy services
• Implement URL routing and rewriting, SSL/TLS termination, load balancing strategies, security controls (headers, filtering, basic WAF logic apache/modsec)
• Troubleshoot HTTP errors (4xx / 5xx), backend connectivity issues, performance bottlenecks

Automation & DevOps:

• Develop and maintain Ansible playbooks and roles
• Automate NGINX configuration deployment, service provisioning and updates
• Integrate automation workflows with NetBox (source of truth), GitLab CI/CD pipelines, unit tests
• Ensure compliance checks are enforced before deployments

CMDB & Data-Driven Infrastructure:

• Use NetBox as the central system of record
• Maintain accurate service definitions and dependencies (consumer/producer model)
• Contribute to data quality and automation consistency

CI/CD & Version Control:

• Work with GitLab for source control, merge requests and code reviews, CI/CD pipelines
• Contribute to automated testing (linting, validation) and release management processes

This job requires initiating the process of getting a Security Clearance certificate. EU citizenship is required.