Hi! 👋 I'm Krstan Vještica 💻
Senior Linux/FreeBSD System Administrator based in Novi Sad, Serbia.
- 🐧 11+ years of hands-on experience managing Linux/FreeBSD environments, implementing DevOps practices, and architecting scalable infrastructure.
- 🤝 Co-Founder & Mentor at hackerspace Tilda Center — sharing knowledge with the local IT community since 2015.
- 🎯 My motivation is to help people do better in DevOps and to show them how to fix and solve SysAdmin problems quickly and efficiently.
- 📫 Reach me at krle@tilda.center
| Role | Company | Period |
|---|---|---|
| Linux System Administrator | Hive Secure ID | 2024 — 2026 |
| Linux/FreeBSD System Administrator | GG CyberSec Systems | 2021 — 2024 |
| Co-Founder / Mentor | Tilda Center | 2015 — Present |
| Freelancer — GNU/Linux DevOps | Upwork | 2015 — 2019 |
| Linux System Administrator | Tehnodrome Systems | 2017 — 2018 |
| Linux System Administrator | DDOR Novi Sad | 2014 — 2015 |
Highlights:
- On-prem Kubernetes cluster administration with focus on HA and resource optimization.
- Designed and automated end-to-end infrastructure provisioning with Ansible playbooks.
- Built and maintained CI/CD pipelines with Jenkins and GitLab.
- Set up monitoring and alerting stacks based on Grafana + Prometheus.
- Administered MySQL, PostgreSQL, and MongoDB databases including backup and disaster recovery strategies.
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Ansible
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AWS
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Docker
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Kubernetes
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Vagrant
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Git
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Jenkins
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GitLab CI
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Linux
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FreeBSD
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Python
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Bash / Shell
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Nginx
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Apache
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CBSD
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Prometheus
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Grafana
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PostgreSQL
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MySQL
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MongoDB
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Let's Encrypt
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