Platform Engineer

Coreso; Brussel; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Mission with purpose

International team in Brussels

Hybrid working (40% office, 60% home)

Real ownership of impactful projects

EU-focused, cross-team collaboration

Job summary

Coreso is seeking a Platform Engineer to ensure that business-critical applications and platform services remain available, secure, performant and operationally supported. You will work across OpenShift, Kubernetes, Airflow, MinIO, and middleware services, collaborating with software engineers, data engineers, architects and security specialists to keep systems running smoothly.

This role blends platform operations, automation, incident response and application support within a 24/7 environment,

Qualifications

• Bachelor's or Master's degree in Computer Science, Information Technology or equivalent experience.
• Experience supporting production-critical platforms and applications.
• Experience working in Platform Engineering, DevOps, Site Reliability Engineering (SRE) or Infrastructure Engineering roles.
• Experience with operational support and incident management.

Responsibilities

• Ensure business-critical applications remain operational and available.
• Monitor application and platform health, support disaster recovery and business continuity activities.
• Lead or contribute to root-cause analysis for platform incidents and ensure that agreed corrective, preventive and follow-up actions are recorded, prioritised and tracked to completion.
• Support application deployment and production releases.
• Participate in on-call and operational support rotations.
• Maintain operational documentation and support procedures.

Skills

Linux admin

Kubernetes/OpenShift

Python scripting

Monitoring

IaC concepts

Git CI/CD

Troubleshooting

Education

Bachelor's or Master's in CS/IT

Tools

MinIO

Airflow

Prometheus

Grafana

Terraform

Ansible

PostgreSQL

Job description

Embark on an exciting journey with Coreso, a dynamic and fast-paced company at the forefront of the European energy landscape.As a Regional Coordination Centre (RCC), Coreso plays a crucial role in coordinating high-voltage electricity flows for European Transmission System Operators (TSOs), ensuring the security of electricity supply on a regional basis.

To support our mission, we are looking for aPlatform Engineer to ensure that business-critical applications and platform services remain available, secure, performant and operationally supported.

You will be responsible for the platforms that host and support Coreso applications, including OpenShift, Kubernetes, Airflow, MinIO, monitoring solutions and supporting middleware services. You will work closely with software engineers, data engineers, architects and security specialists to ensure smooth operations and continuous improvement.

This role combines platform operations, automation, troubleshooting, incident response and application support within a 24/7 operational environment.

Responsibilities

Application Availability & Operational Support

• Ensure business-critical applications remain operational and available.
• Monitor application and platform health, support disaster recovery and business continuity activities.
• Lead or contribute to root-cause analysis for platform incidents and ensure that agreed corrective, preventive and follow-up actions are recorded, prioritised and tracked to completion.
• Support application deployment and production releases.
• Participate in on-call and operational support rotations.
• Maintain operational documentation and support procedures.

Platform Operations & Reliability

• Operate and support OpenShift and Kubernetes platforms.
• Manage Airflow orchestration services and platform dependencies.
• Support MinIO object storage services.
• Maintain platform middleware and supporting services, platform upgrades, patching and lifecycle activities.
• Monitor platform performance and capacity.

Automation & Infrastructure as Code

• Develop automation scripts and operational tooling, implement and maintain Infrastructure-as-Code solutions.
• Reduce manual operational activities through automation.
• Improve deployment and operational processes.

Monitoring & Observability

• Implement and maintain monitoring and alerting solutions.
• Define and improve operational dashboards, ensure meaningful metrics and actionable alerts.
• Contribute to incident analysis and service reporting.

Security & Compliance

• Apply security-by-design principles.
• Support vulnerability management and platform patching.
• Manage secrets, certificates and access controls.
• Contribute to compliance and audit activities.

Continuous Improvement

• Identify opportunities to improve reliability and efficiency.
• Reduce operational risk and technical debt.
• Contribute to platform roadmaps and future architecture decisions.
• Share knowledge and support team development.

What You Bring

• Bachelor's or Master's degree in Computer Science, Information Technology or equivalent experience.
• Experience supporting production-critical platforms and applications.
• Experience working in Platform Engineering, DevOps, Site Reliability Engineering (SRE) or Infrastructure Engineering roles.
• Experience with operational support and incident management.

Technical Skills

Required

• Linux administration
• Kubernetes/OpenShift
• Python scripting
• Monitoring and observability tools
• Infrastructure-as-Code concepts
• Git and CI/CD practices
• Troubleshooting and incident management

Preferred

• MinIO
• Airflow
• PostgreSQL
• Terraform, Ansible
• Prometheus, Grafana
• Container security
• Enterprise networking concepts

Personal Competencies

• Strong analytical and problem-solving skills
• Ownership and accountability
• Structured and methodical approach
• Team player with excellent collaboration skills
• Continuous improvement mindset
• Ability to remain calm during production incidents
• Effective communication skills

What Success Looks Like

Within your first year, you will:

• Become an active contributor to the operation of OpenShift, Airflow and supporting platform services.
• Independently manage platform incidents and operational tasks.
• Contribute to a sustainable 24/7 support capability.
• Improve automation, monitoring and operational efficiency.
• Help reduce dependency on external support providers.
• Ensure Coreso applications remain stable, secure and available.

Why join us?

We are a small organization with European-wide impact. You will work on meaningful projects with visibilityacross teamsand have the chance to contribute in ahands-on practical way.

What we offer:

• A mission with purpose– contribute to Europe’s energy transition
• An international team based in Brussels– located in the heart of the EU district,
• A dynamic and supportive workplace– where your input matters and your creativity is welcomed.
• Real ownership– work on impactful projects in the EU context
• Flexible way of working– a hybrid setup: 40% in the office, 60% from home.

In line with our commitment to information security (ISO 27001), reference and background checks may form part of the selection process.