Senior DevOps engineer

Act Digital France; Brussel; On-site; EUR 90,000 - 120,000; Full time

Job summary

act digital is an international consulting and engineering group delivering digital transformation across software, security, data, cloud and AI. The platform engineering team designs, builds and operates a secure, scalable enterprise-grade platform to serve aviation-grade systems.

You will join a team of experts responsible for platform development, operations, security integration, and continuous improvement, collaborating closely with developers and architects.

Qualifications

• 5–8 years of experience in software or platform development with cloud-native and DevOps.
• Strong OpenShift/Kubernetes skills (Helm, operators, namespaces, RBAC, secrets, networking).
• Experience with Azure IaaS (VMs, networking, storage, IAM).
• CI/CD tools (Jenkins, GitHub Actions, ArgoCD) and IaC tools (Terraform, Ansible).
• Experience with Vault, Keycloak or Okta for secure access and identity management.
• Hands-on with PostgreSQL, MongoDB and data services (Elasticsearch, MinIO).
• Familiar with event-driven systems (Solace, Kafka) and Linux/container basics.

Responsibilities

• Develop, test, and maintain Kubernetes/OpenShift platform components and operators.
• Build CI/CD pipelines with Jenkins and apply GitOps for traceable deployments.
• Use Terraform and Ansible to automate Azure and on‑prem provisioning.
• Develop APIs, scripts, and integrations for self-service platform use.

Skills

Cloud-native

OpenShift

Kubernetes

DevOps practices

CI/CD tools

Azure IaaS

Vault

Linux

Networking

PostgreSQL

Kafka

Education

Bachelor’s degree in a relevant field

Tools

Terraform

Ansible

Jenkins

GitHub Actions

ArgoCD

Helm

NGINX

Prometheus

Grafana

Job description

act digital is an international consulting and engineering group that supports its clients in their digital transformation projects.

Present in 12 countries and with more than 7,000 employees, we leverage our expertise to address their challenges in software development, cybersecurity, data, cloud, and AI.

Our ambition: to become the trusted technology partner of the most innovative companies, by designing and securing systems that enhance their performance and resilience.

Joining act digital means becoming part of an agile and committed organization that works closely with its clients to turn ideas into concrete results, with pragmatism and high standards.

Le poste :

You will join our team of experts in platform engineering in charge to design, build and operate key components of a secure and scalable entreprise-grade platform.

Your responsibilities will include:

Platform Development & Automation

• Develop, test, and maintain Kubernetes and OpenShift-based platform components and custom operators.
• Build and enhance CI/CD pipelines using Jenkins, applying GitOps best practices for repeatable and traceable deployments.
• Contribute to infrastructure-as-code (IaC) using Terraform and Ansible to automate the provisioning and configuration of Azure and on-prem resources.
• Develop APIs, scripts, and integrations to streamline platform operations and enable self-service capabilities for development teams.

Platform Operations & Reliability

• Deploy and maintain core data services including PostgreSQL, MongoDB, Elasticsearch, and MinIO within OpenShift and Azure environments.
• Participate in incident response, root cause analysis, and performance tuning of platform components.
• Contribute to the design and implementation of monitoring, alerting, and logging solutions (ELK Stack, Prometheus, Grafana).
• Implement and test backup, failover, and disaster recovery procedures for critical platform services.

Security & Integration

• Implement and maintain identity and access management integrations using Keycloak, Okta, and Vault.
• Ensure secrets management, policy-as-code, and secure configuration baselines across all deployed components.
• Configure and manage reverse proxies (NGINX) and API Gateway solutions for secure and reliable service exposure.
• Work on data and messaging integration using Solace PubSub+ and Confluent Kafka to support real-time aviation data flows.

Collaboration & Continuous Improvement

• Collaborate with principal developer to translate the designs into implementations.
• Collaborate with developers, DevOps engineers, and architects to ensure seamless service integration and operational consistency.
• Spend 15-20% of time to provide support to the product developers who are the customers of the platform.
• Contribute to documentation, runbooks, and best practice guidelines for platform use and maintenance.
• Identify opportunities for automation, optimization, and technical debt reduction.
• Participate in code reviews, pair programming, and continuous learning initiatives.

Profil recherché :

What profile are we looking for this position:

Must-have skills :

• 5–8 years of experience in software or platform development, with a strong background in cloud-native and DevOps practices.
• Proficient with OpenShift/Kubernetes (Helm, operators, namespaces, RBAC, secrets, networking).
• Experience with Azure IaaS (VMs, networking, storage, IAM).
• Strong knowledge of CI/CD tools (Jenkins, GitHub Actions, ArgoCD) and IaC tools (Terraform, Ansible).
• Experience managing Vault, Keycloak, or Okta for secure access and identity management.
• Hands‑on experience with databases (PostgreSQL, MongoDB) and data services (Elasticsearch, MinIO).
• Familiarity with event-driven systems (Solace, Kafka).
• Strong understanding of Linux, networking, and container orchestration principles.

Soft Skills & Attributes :

• Analytical and methodical approach to problem-solving.
• Strong communication skills and ability to collaborate within multidisciplinary teams.
• Commitment to security, quality, and operational resilience in line with aviation system requirements.
• Curiosity to learn and contribute to cutting-edge platform technologies in a highly regulated domain.

Preferred Qualifications :

• Certified Kubernetes Administrator (CKA) or Developer (CKAD). (nice to have)
• HashiCorp Certified: Vault Associate. (nice to have)
• Azure Administrator Associate or Azure DevOps certification.
• Experience in aviation, air traffic management, or other mission-critical domains. (nice to have)