Martin L.-Senior DevOps Engineer
Check rate
Experience
Freelance Full-Stack & Infrastructure Developer
mechanical engineering company
- Built and currently maintain a production Order Management Portal and CMS for a mechanical engineering company (50+ employees), replacing a fragmented Excel-based workflow that was causing cross-departmental delays and requiring manual status coordination between finance, warehouse, and operations.
- The system provides real-time, role-tailored data visibility across departments, eliminating the internal status calls and bottlenecks the previous process depended on.
- Built on C#/.NET backend, Blazor and Next.js frontend, PostgreSQL, deployed via Docker Compose and Caddy with automated CI/CD through GitHub Actions.
- Sole owner of architecture, development, and ongoing infrastructure. Responsible for uptime, updates, and all future development.
Senior DevOps Engineer
CETIN a.s.
- Architected the hybrid infrastructure, spanning Azure and on-premises environments, and provisioned and manage it through Terraform and Ansible.
- Designed and implemented a GitOps deployment process using Argo CD and Helm, replacing manual releases that took hours or days. Deployments now complete in minutes with no human intervention.
- Built custom C#/.NET build validation tasks that run both locally and in-pipeline, catching configuration mismatches before they reach production and reducing post-deployment failures to near zero.
- Managed a multi-cluster AKS environment hosting critical production services, including capacity planning, upgrade cycles, and incident response.
- Built a full observability stack (Grafana, Mimir, Tempo, Alloy, Loki, and OpenTelemetry) giving engineering teams real-time visibility into service health across environments.
- Automated Windows Server deployment and upgrade procedures across multiple servers, which previously required dedicated engineers working for hours. Now runs as unattended workflow running in minutes. It reduced the operational cost needed to maintain it.
- Integrated Jira directly with pipeline deployment logic so tickets transition, close, and label automatically on release, eliminating administrative work from the developer day and letting teams focus on delivery.
- Deployed Robusta KRR, KEDA, and Karpenter for automated Kubernetes resource right-sizing and autoscaling, identifying over-provisioned workloads and generating ongoing cloud infrastructure cost reductions.
- Stepped in as interim QA Lead during a critical team gap. Introduced automated testing practices, upskilled team members on automated testing fundamentals, and led the technical hiring process for permanent QA Lead.
- Acted as the internal go-to for Git workflows, CI/CD practices, and JFrog Artifactory across engineering teams. Ran hands-on sessions and provided direct mentoring during onboarding.
DevOps Engineer
CANCOM Czech Republic, s.r.o.
- Redesigned GitLab CI and Azure DevOps pipelines across a 40+ microservice platform on OpenShift, cutting average build times from 20 minutes to 3 and reducing developer wait time across every release cycle.
- Implemented delta-linting logic for Angular builds so only files touched in a commit or PR are linted, which eliminated a major source of unnecessary pipeline slowdown at scale.
- Built an automated deployment framework using Ansible and PowerShell that replaced manual on-premise installation and upgrade procedures. What previously required dedicated engineer time now runs automatically in minutes.
- Defined deployment architecture and DevOps process for a large enterprise tender built on a microservices platform.
- Introduced Terraform across the Azure, replacing ad-hoc provisioning with versioned, repeatable infrastructure and eliminating configuration drift between environments.
- Administered and automated platform services including ELK, MSSQL, RabbitMQ, Keycloak, JFrog Artifactory, and Grafana, keeping supporting infrastructure consistent and operational.
- Developed and maintained T-SQL logic against MSSQL databases supporting platform services and reporting needs.
- Provided third-line production support. Did diagnosis and root-cause analysis for issues on high-availability systems where downtime had direct business impact.
IoT Technical Support Engineer
Simple Hardware s.r.o.
- Introduced GitLab CI pipelines and automated testing practices into the development process, establishing stable release baselines and accelerating code-to-production velocity.
- Worked directly with international B2B customers to design and validate IoT solutions built on Sigfox and LoRa technologies.
- Evaluated technical feasibility of customer requirements and proposed tailored hardware and software integration solutions.
- Collaborated directly with core development teams on product enhancements, firmware functionality, and long-term roadmap planning.
- Coordinated hardware testing, firmware validation, and compliance certification activities.
- Developed custom Python-based automation and regression testing tools.
IT Engineer & Network Administrator
Charles University
- Administered servers, networking infrastructure, and laboratory IT systems.
- Provided technical support and troubleshooting for medical researchers, laboratory personnel, and academic staff.
- Conducted practical training sessions for medical students focused on EEG systems and data analysis.
- Designed and assembled custom electronic equipment and laboratory infrastructure for research activities.
Industry experience
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Experienced in Education, Healthcare, Information Technology, and Telecommunication.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Customer Service, Quality Assurance, and Product Development.
Summary
Senior DevOps engineer currently managing the AKS platform at CETIN. Most of what I do comes down to replacing slow manual work with robust automation. Deployments that used to take hours now run through Argo CD and Helm in minutes, Windows Server legacy deployments that needed a dedicated engineer now run automatically and unattended. I also build software, not just infrastructure for it. I designed and still run a production order management system for a 50+ person manufacturing company, from the .NET backend to the Postgres database to the server it runs on.
Skills
- Cloud & Container Platforms: Microsoft Azure, Aks, Openshift, Kubernetes, Docker
- Iac & Automation: Terraform, Ansible, Powershell, Bash, Python
- Ci/Cd & Gitops: Gitlab Ci, Azure Devops, Github Actions, Argo Cd, Helm
- Observability & Monitoring: Grafana, Elk Stack, Opentelemetry, Mimir, Tempo, Alloy
- Cost Optimization: Robusta Krr, Keda, Karpener
- Software Development: C#/.Net, Blazor, Next.Js
- Databases & Messaging: Mssql, Postgresql, Oracle Database, Rabbitmq, Kafka
- Tools & Platforms: Git, Jira, Confluence, Keycloak, Caddy, Nginx, Artifactory
- Operating Systems: Linux, Windows Server
Languages
Education
Secondary Technical School of Mechanical and Electrical Engineering
Information Technologies
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
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Martin is based in Prague, Czech Republic and can operate in on-site, hybrid, and remote work models.
Martin speaks the following languages: Czech (Native), English (Advanced), German (Elementary).
Martin has at least 9 years of experience. During this time, Martin has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 2 years and 9 months. Note that Martin may not have shared all experience and actually has more experience.
Based on recent experience, Martin would be well-suited for roles such as: Freelance Full-Stack & Infrastructure Developer, Senior DevOps Engineer, DevOps Engineer.
Martin's most recent position is Freelance Full-Stack & Infrastructure Developer at mechanical engineering company.
In recent years, Martin has worked for mechanical engineering company, CETIN a.s., CANCOM Czech Republic, s.r.o., Simple Hardware s.r.o., and Charles University.
Martin is most experienced in industries like Education, Healthcare, and Information Technology. Martin also has some experience in Telecommunication.
Martin is most experienced in business areas like Information Technology, Customer Service, and Quality Assurance. Martin also has some experience in Product Development.
Martin has recently worked in industries like Education, Healthcare, and Information Technology.
Martin has recently worked in business areas like Information Technology, Customer Service, and Quality Assurance.
Martin attended Secondary Technical School of Mechanical and Electrical Engineering for Information Technologies.
Martin will be available full-time from October 2026.
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Calculated based on our freelancers’ daily rates as of 3 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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