About
~/aboutThroughout my career, I have combined software engineering, infrastructure architecture and operations — from managing large-scale production environments to designing internal platforms used across the company.
At Seznam.cz, I design and operate database services powering 750+ production clusters with peak traffic exceeding 1M requests per second. I led the development of APOLLO, an internal infrastructure automation platform, and currently lead SAPI — its next-generation successor, a developer platform and service catalog for Seznam's private cloud. Alongside this, I run Netfusion, my own IT services company delivering infrastructure solutions to business customers.
I enjoy solving complex infrastructure challenges, improving developer experience through automation, and turning operational problems into reliable engineering solutions.
Quick facts
Career pipeline
~/timeline · 2009 → presentClick a role for details.
Founder & Head of IT / IT Director
Founded and lead Netfusion, an IT services company delivering infrastructure solutions to business customers — full IT strategy, architecture and hands-on delivery.
Responsibilities
- Own the complete IT function — strategy, architecture decisions, infrastructure delivery and daily operations
- Design and implement IT solutions covering networks, servers, virtualization, security and cloud technologies
- Lead technical projects from requirements and architecture design through implementation and long-term operation
- Act as the primary technical owner, coordinating customers, vendors and stakeholders
Selected projects
- End-to-end network infrastructure modernization for a residential property management client — hardware refresh, configuration standardization, monitoring, full documentation handover
- Network extension for EV charging infrastructure — dedicated segmented subnet for wallboxes with secure, isolated Wi-Fi access for end users
Senior Platform / Infrastructure Engineer · Technical Lead
Design and operation of internal database services (MySQL & Redis as a Service, 750+ clusters, 1M+ RPS). Technical lead of SAPI, architect of APOLLO.
Database services
- MySQL as a Service — 400+ ProxySQL/MariaDB production clusters; designed an external SLO monitoring system validating availability and exporting Prometheus metrics
- Redis as a Service — 350+ production deployments (Standalone, Sentinel, Redis Cluster)
- Platform architecture, backend development, automation, reliability and operational improvements
SAPI — internal developer platform (technical lead)
- Next-generation developer platform and service catalog for Seznam's private cloud, replacing APOLLO
- Own architecture, technical direction, roadmap and migration strategy; develop backend services and APIs
- Designed resource-based service model, lifecycle management, provisioning workflows, access management, billing and ownership integration
APOLLO — infrastructure automation platform (architect & developer)
- REST API for infrastructure lifecycle management, automated provisioning, service configuration management
- Integrations: OpenStack, Kubernetes, S3, OAuth, IPAM, DNS, TLS, Git
- Impact: provisioning reduced from days to minutes, standardized self-service, scaled to hundreds of clusters
Stack
System Engineer
Managed infrastructure for Seznam's largest services — Seznam.cz, Novinky.cz, Seznam Zprávy, Sport.cz and more.
Responsibilities
- Production infrastructure management and service reliability
- Infrastructure automation and database administration
- Monitoring and observability improvements — moving operational workflows toward automation
Stack
External Specialist
Infrastructure automation and deployment workflows, alongside the role at Seznam.cz.
Responsibilities
- Designed and maintained application orchestration solutions using Marathon
- Automated deployments using GitLab CI/CD
- Infrastructure automation and tooling projects
Infrastructure Lead / System Administrator
Led a team of three engineers responsible for system administration and network operations — 300+ servers, 1000+ network devices.
Scope
- Managed a team of three engineers
- 300+ servers (Debian, RHEL, Windows) · 1000+ network devices (Cisco, Dell, MikroTik)
Stack
IT Administrator
Infrastructure for business operations and transportation systems — including high-speed wireless and optical networks for Prague public transport.
Scope
- 80+ servers (Windows Server, Debian) · 1000+ network devices (Cisco, DCN, MikroTik, Racom, SIKLU)
- Designed and implemented high-speed wireless and optical networks for Prague public transport systems
- IT support for internal users and customers
Stack
Early career — Developer & SysAdmin
Where it all started — Linux administration, web development and game server engineering.
Lionreality (09/2013 – 08/2015)
- Network and system administration, web development (HTML, CSS, PHP, MySQL), internal IT support
Project Nemesis (06/2009 – 10/2011)
- Debian server administration, shell automation, MySQL administration and query optimization
- World of Warcraft server development (Mangos, TrinityCore)
Core skills
~/skillsPlatform engineering
Software engineering
Cloud & infrastructure
Databases
Observability
Signature projects
~/projectsSAPI — next-gen internal developer platform
Developer platform and service catalog for Seznam's private cloud. Unified self-service interface, standardized provisioning, resource-based service model with lifecycle, access, billing and ownership management. Technical lead — architecture, roadmap and migration strategy.
APOLLO — infrastructure automation platform
Internal platform provisioning and managing MySQL, Redis and Monitoring as a Service. REST API for lifecycle management, integrations with OpenStack, Kubernetes, S3, OAuth, IPAM, DNS, TLS and Git. Reduced provisioning from days to minutes across hundreds of clusters.
External SLO monitoring system
Designed and developed an independent monitoring system validating database service availability from the outside and exporting Prometheus metrics — the source of truth for MySQL-as-a-Service SLOs across 400+ clusters.
End-to-end infrastructure delivery
Complete project ownership from analysis and design to implementation and documented handover — network modernization for property management clients and segmented networks for EV charging infrastructure with isolated end-user Wi-Fi access.