DevOps Engineer

LOÏC
KALBERMATTER

Transforming complex infrastructure into seamless automation. Specialized in OpenShift, Golang, and building security-first architectures for the modern enterprise.

View Case Studies GitHub
Loïc Kalbermatter Portrait
The Philosophy

"Infrastructure should be an Enabler, not a Bottleneck."

In the modern enterprise, speed is currency. But speed without stability is chaos. My mission is to engineer systems where these two coexist. By treating Infrastructure as Code and automating every repetitive task, I allow development teams to focus on what matters: shipping features.

With a deep background in the highly regulated Swiss banking and telecommunications sector, I don't just build pipelines; I build trust. My architectures are secure by design, compliant by default, and resilient against failure.

4+
Years Exp
100%
Automated
⚓

Kubernetes Native

Orchestrating complex microservices on OpenShift with enterprise-grade reliability.

⚡

High Performance

Custom Golang tooling to replace slow scripts with compiled, concurrent CLIs.

🔒

Security First

Automated compliance monitoring and OAuth2 integration for zero-trust environments.

📄

Docs-as-Code

Because documentation that isn't automated is documentation that is outdated.

Technical Arsenal

I don't just use tools; I master ecosystems. Here is the stack I leverage to build scalable enterprise solutions.

Platform

  • OpenShift Container Platform EXPERT
  • Kubernetes / K8s CORE
  • Docker / Podman
  • RHEL / Linux Admin

Automation

  • Golang (CLI & Backend) ADVANCED
  • Python Scripting ADVANCED
  • Ansible Playbooks
  • GitLab CI / Jenkins

Compliance

  • Prometheus / Grafana MONITORING
  • GraphQL & REST APIs
  • OAuth2 / OIDC
  • Security Auditing

Professional Journey

DevOps Engineer Cloud Platforms

Swisscom (Schweiz) AG

Aug 2024 — Present
  • ▹ Platform Engineering: Orchestrating enterprise-scale OpenShift clusters. Responsible for lifecycle management, zero-downtime upgrades, and performance tuning of critical banking infrastructure.
  • ▹ Tool Development: Engineering custom CLI applications in Golang to replace manual operations. This reduced incident response times by automating complex rotation logic in Opsgenie.
  • ▹ Compliance Automation: Built a monitoring system for GitLab Access Tokens using GraphQL APIs, ensuring 100% adherence to internal security policies.

Apprentice IT Specialist Application Development

Swisscom (Schweiz) AG

Aug 2021 — Jul 2024
  • ▹ Developed scalable backend microservices using NestJS, Next.js, and Java Spring Boot in an Agile/Scrum environment.
  • ▹ Led "Security Journey" initiatives: Researching digital security products and building a security-first SaaS prototype.
  • ▹ Optimized internal tooling for CRM platforms, significantly improving data filtering and processing speeds.

Engineering Impact

Security & Compliance

Automated Compliance Monitor

The Challenge

Manual auditing of hundreds of GitLab Personal Access Tokens was inefficient and posed a significant security risk in a regulated banking environment.

The Solution

Developed a high-performance Go microservice that queries the GitLab GraphQL API. It pushes real-time alerts to Prometheus/Alertmanager before expiration occurs.

The Impact

Eliminated token-related outages completely and reduced audit time from days to seconds.

Golang GraphQL Prometheus
SEC
DOC
Internal Tooling

Docu-to-Wiki Pipeline

The Challenge

Technical documentation lived in Git (Markdown) while business users relied on Confluence. Keeping them in sync was a manual, error-prone nightmare.

The Solution

Engineered a robust synchronization engine in Go. It clones repositories, parses Markdown structures, and updates the Wiki API intelligently (only changed pages).

Golang Confluence API

Enterprise HomeLab

A playground for chaos engineering. Running Proxmox, TrueNAS, and K8s clusters to test bleeding-edge tech safely.

#SelfHosting

Post-Mortem Bot

Automating the incident review process. Detects Opsgenie alerts and pre-generates Jira/Confluence incident reports.

#IncidentManagement

Opsgenie CLI

A CRUD terminal tool to manage on-call rotations programmatically, bypassing the slow UI for power users.

#DeveloperExperience

Let's Build
The Future.

Ready to bring enterprise-grade automation to your infrastructure? Let's talk.

loic@kalbermatter.one LinkedIn ↗

© 2026 Loïc Kalbermatter

Engineered in Grenchen, Switzerland