Ľubomír TchurikDevOps & Infrastructure Engineer
Infrastructure & systems engineer. I run reliable Linux platforms, automation pipelines, and the boring plumbing that lets product teams ship.
About
Infrastructure & Systems Engineer
I design and operate Linux platforms that need to stay up. Over the past fifteen years I've moved between sysadmin, infrastructure lead, and cloud/email-delivery roles — building the unglamorous foundations that keep applications fast, observable, and recoverable.
Hands-on with PostgreSQL, container orchestration, configuration management, monitoring stacks, and writing the Python / PHP / Go / Rust / Bash glue that ties it all together.
Career log
System Administrator
Systems administration and server operations for a high-availability production environment.
Infrastructure Lead
Led infrastructure for one of Europe's largest online music retailers. Architected PostgreSQL, on-prem & cloud infrastructure, automation pipelines, and monitoring.
Email Marketing Specialist & Cloud Infrastructure
Hybrid role across cloud infrastructure operations and large-scale email delivery. Built and maintained sending infrastructure and deliverability systems.
Email Marketing Specialist
Campaign delivery, segmentation, and deliverability for the fintech sector.
IT Specialist
Workstation and server support, network maintenance, end-user troubleshooting.
Skills & systems
Linux system administration
primary domainLinux is my home turf. From single-node servers to clustered production environments — I architect, deploy, and maintain reliable systems that keep running.
- ›Linux servers (Debian, Ubuntu, RHEL) in production for 15+ years
- ›Kernel tuning, performance troubleshooting, high-availability setups
- ›Server provisioning automated with Ansible, Terraform, Bash & Python
- ›System hardening — SELinux, AppArmor, fail2ban, strict firewalls
- ›Mail, web, DNS, and database services on bare-metal & cloud
Email infrastructure
deliverabilityOperating MTAs that move millions of messages a day. I tune the boring layers most teams ignore — queues, IP warm-up, reputation, feedback loops — so transactional and marketing mail actually lands in the inbox.
- ›Postfix, Exim, Haraka, PowerMTA tuning at scale
- ›SPF, DKIM, DMARC, BIMI, MTA-STS, TLS-RPT
- ›Bounce, complaint & FBL processing pipelines
- ›Postmaster Tools, SNDS, deliverability monitoring
Email marketing platforms
ESP backendBuilt and scaled the systems behind ESP-style products — segmentation, scheduling, template rendering, tracking and reporting — wired to high-throughput sending infrastructure with strict compliance.
- ›Campaign queues, throttling & per-domain rate limits
- ›List hygiene, suppression, GDPR & CAN-SPAM compliance
- ›Open / click tracking, webhooks, real-time analytics
- ›Template engines, A/B testing, transactional APIs
Career highlights
Infrastructure architecture
Designed and deployed cloud infrastructure serving 1M+ requests daily.
Pipeline automation
Built CI/CD pipelines reducing deployment time by 80%.
Container orchestration
Operated 500+ containerized microservices in production.
Security hardening
Implemented zero-trust patterns across enterprise systems.
Polyglot tooling
Production code in Python, PHP, Go, Rust, and Bash for diverse system needs.
Database performance
Tuned PostgreSQL workloads for sub-millisecond query latency.
Verified certifications
Industry-recognized credentials issued via Credly. Click any badge to verify.
Google AI Professional Certificate
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verify · Apr 2026AI for App Building
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verify · Apr 2026AI for Writing and Communicating
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verify · Apr 2026AI for Brainstorming and Planning
Google Career Certificates
verify · Apr 2026Google Prompting Essentials
Google Career Certificates
verify · Apr 2026AI Fundamentals
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Google Career Certificates
verify · Apr 2026
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Latest from the blog
Live feed from devbyte.space — tutorials and notes from a DevOps guy.
Frequently asked questions
What does a DevOps engineer do?
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A DevOps engineer builds and runs the infrastructure that software lives on — servers, deployment pipelines, monitoring and automation — so development teams can ship changes quickly and safely while systems stay reliable.
Which Linux distributions do you work with?
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Debian, Ubuntu and RHEL. I have administered Linux servers in production for more than 15 years, from single machines to clustered environments.
Which tools and languages do you use?
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Ansible and Terraform for automation and infrastructure as code, Docker and Kubernetes for containers, PostgreSQL for data, and Python, PHP, Go, Rust and Bash for tooling and integrations.
Do you have experience with email infrastructure?
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Yes. I have worked on email delivery and email marketing platforms, including mail servers, sender authentication (SPF, DKIM, DMARC) and deliverability monitoring.
Where are you based?
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Bratislava, Slovakia. I am open to remote collaboration.
Are you available for new work?
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Yes — I am currently open to work. Use the contact section below or download my résumé to get started.
Get in touch
Working on infrastructure, reliability, or platform automation? Drop a message.
Built for fun, built to help
Tools I build in my own time and leave running for free — small utilities that solve a real problem for someone else.
4Devs.tech
Free online tools for developers and SEOs — robots.txt checker, DNS propagation, JSON formatter and more. No registration, no paywall.
DevByte
Linux tutorials, how-to guides and DevOps notes. Fifteen years of server room knowledge, written down so someone else can skip the trial and error.
DNS Propagation Check
Query A, AAAA, CNAME, MX, TXT, NS, SRV and CAA records from 10 locations across 6 continents and watch propagation resolve in real time.
Athena Report
An AI editor for newsrooms and media teams: daily topic briefs, alerts when a competitor publishes a story you're missing, and a quality check before publishing.
DownSignal
Is it down right now? Live status for AI tools like ChatGPT, Claude and Gemini plus 145 services such as Gmail, YouTube and AWS — with official incident feeds.
hobby projects · free to use · feedback welcome