Senior Software Engineer, Infrastructure @ Camunda 📍 Austria · 🌐 Remote
I build the platform, automation, and guardrails that make 100+ engineers faster — and increasingly set the technical direction behind them.
I'm a platform engineer with a programming background. I started as a Java developer building tools in the financial sector, then deliberately moved deeper into the infrastructure stack — from application code to CI/CD pipelines, to containerizing microservices, to building entire Kubernetes platforms from bare metal up. Today I think like a programmer when solving infrastructure problems: I write reusable frameworks, design self-service abstractions, and ship end-to-end with minimal oversight — so the leverage lands on the whole organization, not just my own tickets.
I am a strong advocate for an async-first workstyle (since the 2020 shift), valuing deep work, transparent group communication, and respecting others' time over synchronous interruptions.
I own Camunda's developer platform serving 100+ engineers across 10+ product teams — CI/CD infrastructure (GitHub Actions self-hosted runners on EKS, label-driven preview environments), Kubernetes clusters (GKE + EKS), container registries (Harbor), dependency management (Renovate), monitoring, secret management (Vault), and cross-team platform services. Beyond keeping it running, I set direction for where it goes next — a scope that's grown from onboarding individual teams to owning org-wide operations and leading cross-team initiatives.
- Led the org-wide response to the Axios supply-chain compromise — coordinated rotation of 400+ secrets across ~20 repositories and multiple teams, then re-architected credential management onto dedicated, Terraform-managed, least-privilege identities so a leaked secret no longer has org-wide blast radius and rotation is a single
terraform apply. - Owned the Zeebe benchmark platform migration end-to-end across four iterations — GKE, Prometheus/Grafana, Harbor, Teleport RBAC, and cross-cloud GCP↔AWS networking — then handed it back to the owning team with docs, smoke tests, and self-service access.
- Drove developer-platform cost (FinOps) work — built per-PR CI cost analysis and a savings roadmap, and turned it into a tracked backlog of concrete reductions.
- Set technical direction — introduced the team's ADR process and authored the cross-team Reduce Developer Toil roadmap, planning velocity work for the whole team rather than just myself.
- Force-multiplied through AI-assisted engineering — authored and shared reusable Copilot/Claude skills and agentic workflows adopted across the team, and helped drive the organization's AI-first tooling direction.
- Modernized the platform with zero downtime — org-wide Kubernetes upgrades, node-pool migrations, shared cluster operators, and an ingress migration, all without disrupting the teams on top.
HomeRacker — A fully modular 3D-printable rack-building system
I created HomeRacker because I was dissatisfied with existing 3D-printable rack solutions — too specific, too rigid, too many adapters. HomeRacker is a fully parametric, open-spec system that can build anything from a Raspberry Pi mini-rack to a 10"/19" server rack to a bookshelf. No printed supports needed, no tools required for assembly.
- 🎥 YouTube — Build Guides & Tutorials
- 🖨️ Makerworld — Ready-to-Print Models
- 🐙 Community Repo — Extensions & Modules
Also built scadm (PyPi) — a zero-dependency Python package manager for OpenSCAD libraries. pip install scadm
Cloud GCP · AWS · Azure · Hetzner
Kubernetes GKE · EKS · Rancher · bare-metal
IaC Terraform · Pulumi (Go) · Kustomize · Ansible
GitOps ArgoCD · FluxCD
CI/CD GitHub Actions · Jenkins · Gitlab
Security Teleport · Vault · WireGuard · Okta · Yubikeys (GPG)
Monitoring Prometheus · Grafana · OpenTelemetry · Elasticsearch · Opensearch
Languages Go · Java · TypeScript · Python · Shell · Rust (early stage)
Databases PostgreSQL · MySQL · MongoDB · Neo4j · Redis
3D/CAD OpenSCAD · Fusion 360
Coding Agents GitHub Copilot · Claude
- 📧 kellervater@gmail.com
▶️ YouTube