Senior System Engineer Administrator HYBRID in Brussels Belgium (EU PASSPORT HOLDERS ONLY)

Senior System Engineer Administrator HYBRID in Brussels Belgium (EU PASSPORT HOLDERS ONLY)

English MUST

JOB LOCATION: Brussels Belgium (La Hulpe, Wallonia)

DURATION: 6 months + (Possibility for Extension)

WORK PATTERN: HYBRID Role (on-site 2/3 days a week with Hybrid)

RATE: EUR 500 - EUR 600/EUROS PER DAY

LANGUAGES: English MUST

Assignment Details:

Screening Questions

Please describe your experience with the following skills, including years of experience, project context, and client/environment details:

• Migration from VMware to Docker environments
• Linux administration (Red Hat)
• Deploying Docker containers on virtual machines
• Ansible
• Scripting (Python and KSH)

Description:

We are looking for an experienced professional to support the containerization of an existing application currently deployed on a traditional virtual machine, within a complex, production critical environment.

The application is being migrated from a VM based installation to a Docker based deployment. Docker images are prepared by the application development teams, and this role focuses on taking over from that point to integrate, deploy, operate, and upgrade the containerized application on Linux based virtual machines.

The professional will play a key role in establishing a reliable container runtime, ensuring a smooth migration, maintaining service continuity, and supporting production operations. Close collaboration with application developers, infrastructure teams, and operations is essential throughout the migration and subsequent life cycle.

Key Responsibilities
Support the containerization of an existing application currently deployed on a traditional virtual machine (currently we are using RHEL v8), ensuring a smooth and controlled migration to Docker
Take ownership of integrating and deploying Docker images produced by application teams onto Linux based virtual machines
Configure and manage the Docker runtime environment on VMs, including networking, storage/volumes, resource allocation, and life cycle management
Plan and execute application upgrades, including rolling upgrades, version transitions, compatibility validation, and rollback strategies
Ensure platform stability and resiliency during migration, deployment, upgrades, and day to day operations
Support system and application integration, ensuring correct interaction between containerized applications, host systems, databases, and external services
Investigate and resolve production issues related to Docker, VM infrastructure, and application runtime through log analysis and root cause analysis
Develop and maintain operational procedures and scripts related to Docker deployment, upgrades, and VM life cycle activities
Work closely with application developers, taking over after image creation and participating in integration, deployment, and upgrade reviews

Technical Skills (Required)
Strong hands on experience with Docker containerization, focusing on integration and deployment of application images prepared by development teams
Proven experience deploying Docker containers on virtual machines (VMs), including host preparation, configuration, and runtime management
Solid understanding of Docker life cycle management (image handling, container orchestration on single VMs, networking, volumes, resource constraints)
Strong experience in system and application integration, ensuring correct interaction between applications, databases, and underlying platforms
Experience with Linux Red Hat (application installation, Scripting, troubleshooting). Currently we are using RHEL v8
Experience with ksh Scripting (application installation, operational scripts)
Basic to intermediate Python programming skills
Ability to investigate and support production issues (log analysis, rootcause analysis, coordination operations teams)
Ability to work closely with application developers, including participation in technical reviews, integration design discussions, and validation of deployment/configuration choices

Nice to Have Skills
Knowledge of CI/CD pipelines related to container build, delivery, and deployment
Familiarity with networking concepts in containerized environments (ports, bridges, TLS, Firewall rules)
Exposure to monitoring and logging of containerized workloads (eg Elastic/Kibana or similar)
Experience with automation tools (Ansible) for VM or Docker life cycle management
Knowledge of PKI/SSL (system certificate setup and maintenance)

SKILLS:

• Ability to work closely with application developers
• Experience deploying Docker containers on virtual machines
• Experience with automation tools (Ansible)
• Experience with automation tools (Ansible)
• Experience with ksh Scripting
• Experience with Linux Red Hat
• Exposure to monitoring and logging of containerized workloads
• Exposure to monitoring and logging of containerized workloads
• Familiarity with networking concepts in containerized environments
• Familiarity with networking concepts in containerized environments
• Knowledge of CI/CD pipelines related to container
• Knowledge of PKI/SSL
• Knowledge of PKI/SSL
• Python programming
• Solid understanding of Docker life cycle management
• Strong experience in system and application integration
• Strong hands-on experience with Docker containerization (at least years)