Cloud Architect (Application & Middleware) (m/f/n)
We are currently seeking an experienced Cloud Architect (Application & Middleware) to join a major European Union programme. This role is ideal for a senior specialist skilled in PHP, Apache Tomcat, application-layer architecture and modern container-native patterns. The position combines architectural ownership with hands-on engineering insight and close collaboration with cloud, DevOps and solution teams.
Responsibilities:
Own and maintain reference architectures for PHP‑FPM, Apache Tomcat and Apache HTTP Server.
Define and document standards for multi‑application deployments across supported runtimes.
Lead the design of containerisation for Kubernetes, covering runtime configuration and image standards.
Create and maintain Architectural Decision Records (ADRs).
Define integration approaches with platform tooling (API gateways, automation tools, service catalogues).
Support the definition of sovereign cloud requirements and future private cloud capabilities.
Define observability requirements (logging, metrics, tracing) for application-layer components.
Collaborate with Solution Architecture and product teams to ensure alignment with platform standards.
Evaluate emerging technologies and recommend adoption strategies.
Mentor architects and DevOps squads working with application and middleware technologies.
Expectations:
Strong architectural leadership and strategic thinking.
Excellent documentation skills (reference architectures, ADRs, standards).
Ability to communicate clearly with technical and non-technical stakeholders.
Pragmatic, delivery-focused approach to problem‑solving.
Ability to collaborate effectively across squads and engineering teams.
Proactiveness in addressing platform inconsistencies and gaps.
Commitment to continuous learning in cloud, middleware and container-native technologies.
Requirements:
Personal Security Clearance UE Secret — active or willingness to obtain after onboarding.
EU citizenship (mandatory).
Fluency in English (written and spoken) is required; proficiency in any other European language is a plus.
Bachelor’s or Master’s degree in Computer Science, IT or related field.
At least 8 years of professional experience in Cloud, Kubernetes or Application Architecture roles.
Deep expertise in PHP runtime environments and Apache Tomcat.
Strong experience designing container-native architectures (Kubernetes, multi-application workloads).
Proficiency with Apache HTTP Server and Nginx.
Programming background enabling runtime analysis and troubleshooting.
Experience with IaC tools (Ansible, Terraform, Crossplane).
Familiarity with API gateways (Tyk, Kong).
Experience with observability stacks (Prometheus, Grafana, ELK, Dynatrace).
Experience producing architecture documentation and working with governance processes.
Nice to have:
Knowledge of n8n workflow automation.
Experience with service catalogues (Cycloid, Backstage).
Familiarity with GitOps tools (ArgoCD, Flux).
Experience with WebLogic Server migrations.
What We Offer:
B2B contract with the client.
Daily rate up to 600-630 EUR nett. (pure B2B with no paid leave).
Remote + 1 trip per month to the office in Luxembourg for 2-3 days max. On-boarding in Luxembourg after the start of the project.
Travel at the consultant's expense.
Long-term engagement in a large EU environment.
Collaboration within a modern ecosystem of cloud architecture and middleware.
Benefits: co-financing for medical and sports cards.
Cloud Architect (Application & Middleware) (m/f/n)
Cloud Architect (Application & Middleware) (m/f/n)