Omschrijving

Senior Linux / DevOps Engineer specialized in infrastructure automation, cybersecurity hardening, observability, and secure Linux environments.

With 25+ years of hands-on experience, I help organizations build, automate, secure, and maintain reliable infrastructure across on-premise and cloud environments.

Core expertise:

• Linux administration (Ubuntu, RHEL/CentOS)

• Infrastructure as Code (Terraform, Ansible)

• CI/CD automation & GitOps

• Monitoring, logging & observability (Zabbix, ELK, Prometheus)

• Security hardening & system baselines

• ISO 27001 / NIS2 gap remediation

• Detection engineering & SIEM support

• Bash & Python scripting

• VMware & KVM virtualization

• Remote infrastructure & security management

I work with organizations that require stable, secure, and maintainable infrastructure with a strong focus on automation, compliance, and operational visibility.

Available for remote freelance projects across Europe.

Branche-expertise

Talen

Nederlands
Tweetalig / moedertaal
Engels
Vloeiend
Duits
Vloeiend
Hongaars
Basiskennis

Voorkeuren voor werkplek

Uitsluitend remote

Werkt voornamelijk remote

Freelance work
IT specialist
DIGITAAL BUREAU & IT-CONSULTANCY
januari 2024 - Vandaag (2 jaren en 5 maanden)
Baja, Hongarije

- Installed Bebian Based backup server for additional layer of security for Cloud services
- Setup a Matrix server instance for several projects to have internal communications (chat, voice & video calls)
- Provided a PeerTube video platform.
- Hardened web stacks with Lynis, fail2ban and SSH lockdowns Biotonus, 2024
- Designed and deployed a new Linux-based infrastructure using Ubuntu, KVM, Ansible, Docker, and custom cloud-init workflows — reducing provisioning time by ~75%.
- Hardened Apache and Nginx web services using Lynis, fail2ban, SSH lockdowns, and sysctl optimalization, improving baseline security and minimized the system's attack surface.
- Built and maintained dev/test/prod infrastructure with version-controlled provisioning, enabling consistent deployments and streamlined team workflows.
- Implemented Git-based deployment using custom webhooks, ensuring faster and traceable rollouts for internal websites and tools.
- Led the development of a new, multilingual company website, with focus on performance, uptime and CI-based rollout.
- Maintained tooling such as DokuWiki, Planka, and Forgejo to support documentation, task tracking, and code collaboration.

Linux Ansible Virtualisation Technical project management
ASML
Connectivity Architect Product IT
DIGITAAL BUREAU & IT-CONSULTANCY
augustus 2022 - augustus 2023 (1 jaar)
Veldhoven, Nederland
• Defined the vision, roadmap, and lifecycle management for the BRES application ecosystem.
• Acted as senior escalation point and operations advisor, guiding critical IT strategy.
FC-26 - ASML
DevOps Team Lead EPS
DIGITAAL BUREAU & IT-CONSULTANCY
oktober 2020 - juli 2022 (1 jaar en 9 maanden)
Veldhoven, Nederland
• Engineered and maintained the EPS platform used by ~10 development teams, introducing versioned package support (akin to app-store compatibility layers) to streamline deployments and reduce integration issues.
• Built and maintained a GCP-based EPS development & test platform that reduced environment deployment time from 2–3 days to under 4 hours.
• Managed Linux-based infrastructure (HP Blades + NAS) powering the EPS platform, including global support for ~40 installations across ASML's worldwide engineering sites.
• Drove EPS platform roadmap and acted as key liaison between infrastructure and development teams, influencing application design and aligning stakeholder expectations with operational constraints.
• Balanced hands-on engineering with team leadership, serving as key liaison between internal teams and external stakeholders. Translated technical direction into actionable steps and priorities.