Over Tristan
I'm an enthusiastic and driven Linux, Unix and cloud consultant. I have been fascinated by computers and networks since my early youth and have more than 20 years of professional experience. I am a quick learner and very persistent when it comes to solving problems.
My professional goals are
- to design, deploy and maintain state of the art IT environments,
- to standardize, automate and script as much as possible and
- to help define a stable and cost-effective long term strategy for the IT department.
Nederlands
Tweetalig / moedertaal
Engels
Vloeiend
Frans
Beperkte professionele capaciteit
Duits
Basiskennis
Kan op locatie werken
Diest (tot 50km)
Werkervaring
- OMPPlatform ExpertSOFTWAREPRODUCTIEmaart 2025 - Vandaag (1 jaar en 3 maanden)Wommelgem, AN, BelgiumMember of the Platform Core team responsible for operating and evolving a large-scale hybrid Kubernetes platform (on-premise vSphere VMs + Azure AKS), with 30+ clusters centrally managed via Rancher. Developers deploy workloads through Helm charts and ArgoCD in a GitOps workflow backed by Azure DevOps and Azure Pipelines.Key contributions:- Day-to-day cluster operations: Kubernetes upgrades (1.28 1.34), security patching, performance tuning and troubleshooting of networking, storage and scheduling issues.- Designed and executed a zero-downtime node OS upgrade from Ubuntu 20.04 to 24.04 across the entire on-premises fleet, preserving running workloads throughout.- Built and deployed new platform features and infrastructure changes with Terraform and Ansible.- Resolved production incidents involving cluster networking, persistent storage and deployment sync failures through deep-dive analysis of Rancher, kubelet logs and etcd state.keywords: aks ansible argocd azure azure devops etcd helm kubernetes rancher terraform vsphere
- KBC Global ServicesSystem EngineerBANKEN & VERZEKERINGENjanuari 2023 - november 2024 (1 jaar en 10 maanden)Leuven, BelgiumDevOps engineer in the KateCoin and KATE team within a financial services environment.Key contributions:
- Migrated resources from ad-hoc AWS accounts to standardized, centrally managed accounts.
- Managed and maintained AWS EKS clusters.
- Extended EKS deployments with AWS App Mesh for service mesh functionality.
- Automated weekly production release coordination tasks.
- Integrated OIDC authentication via Azure AD into IntellectEU Catalyst Blockchain Manager, which previously only supported basic auth.
Keywords: app mesh aws ci/cd cloudwatch docker ec2 eks helm iam kubernetes kustomize terraform - DPG Media BelgiëDevOps EngineerPERS & MEDIAmei 2017 - december 2022 (5 jaren en 7 maanden)Vilvoorde, BelgiumMember of a six-person squad responsible for live and on-demand video streaming infrastructure for VTM GO, Streamz, HLN and other DPG properties. Work organized using Scrumban with a strong emphasis on IaC, security and uptime.Key contributions:
- Migrated services from AWS EC2 instances to containers on AWS ECS Fargate.
- Decommissioned on-premises infrastructure in favour of cloud infrastructure with zero downtime.
- Maintained CI/CD pipelines across multiple repositories and platforms, with integrated security scanning (Jenkins, Snyk).
- Upgraded 100+ servers to a uniform patch level of firmware, hypervisor and OS.
- Consolidated servers from three datacenters into one.
- Migrated VMs across mixed hypervisor generations (ProLiant G1–G9) to a homogeneous platform.
ansible aws ci/cd cloudformation docker ec2 ecs fargate grafana jenkins nginx prometheus python shell scripting snyk terraform traefik ubuntu varnish zfs
Aanbevelingen
Wees de eerste die Tristan aanbeveelt
Help deze freelancer om te schitteren door te vertellen hoe het is om met hem of haar te werken.
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Opleidingen
- Kubernetes and Cloud Native Security Associate (KCSA)The Linux Foundation2027Kubernetes and Cloud Native Security Associate (KCSA)
- Certified Kubernetes Application Developer (CKAD)The Linux Foundation2027Certified Kubernetes Application Developer (CKAD)
Diploma's
- CKS: Certified Kubernetes Security SpecialistThe Linux Foundation2026
- CKA: Certified Kubernetes AdministratorThe Linux Foundation2025