Language:

Mirek Gajdečka

Senior Data & Infrastructure Consultant (Teradata) • Linux/Unix • Oracle/PostgreSQL • Zabbix/Nagios • Proxmox
Location
Prague, CZ
Experience
15+ years in IT operations
Availability
External (evenings / weekends)

LinkedIn Download CV Contact

Senior consulting for Teradata platforms: incident handling, performance tuning, change proposals, and cross-team/customer collaboration.

Professional summary

15+ years of experience in IT operations and support, primarily focused on Unix/Linux application environments, database platforms, and monitoring in international teams. I specialize in Teradata at senior DBA/consultant level — from day-to-day operations and incident resolution to performance optimization and architecture changes. Strong hands-on overlap with Linux infrastructure, Oracle/PostgreSQL databases, monitoring solutions, and automation using shell/SQL scripting.

Core skills

Teradata (DBA/Consulting) Linux / Unix admin Oracle DB PostgreSQL Zabbix Nagios Shell / SQL automation Incident / Change processes

Certifications & languages

  • ITIL 2011 Foundation
  • English: Full Professional
  • Czech: Native
External consulting: audits, targeted troubleshooting, and expert assistance. No 24/7 SLA.

IoT / HomeLab

Hands-on projects focused on security, observability, and local-first services.

  • Proxmox VE: virtualization stack, multiple VM/LXC services
  • Proxmox Backup Server + Synology NAS: local backups and restore tests
  • Home Assistant: automation design and operations, Zigbee integrations
  • HA data → PostgreSQL: long-term data collection & storage
  • Local services: Jellyfin, AdGuard Home (DNS filtering / monitoring)
  • Security: VLAN segmentation, reverse proxy, monitoring

Experience (selected)

  • Your Edge Digital — Senior Consultant 05/2022 – Present • Prague
    Teradata consulting: incidents, performance tuning, customer/team collaboration.
  • Teradata — Consultant 02/2020 – 05/2022 • Prague
    Teradata platform consulting and support.
  • DHL IT Services — Senior Application Specialist 10/2017 – 01/2020 • Prague
    Primary monitoring for prod/non-prod (Zabbix): upgrades, templates, plugins (e.g., DBforBIX), expanding checks, ticketing integration. Automation of routine tasks (sh, sql).
  • EmbedIT — Senior Application Support Specialist 10/2015 – 08/2017 • Brno
    Unix applications, Oracle DB, WebLogic; deployments (releases/hotfixes); automation; maintenance and PDC/DRC tests; onboarding/training.
  • Tieto — Technical Specialist 08/2010 – 06/2013
    L3 support: Unix apps, Oracle DB, BMC platform, Nagios monitoring.

Contact

LinkedIn: www.linkedin.com/in/mirek-gajdečka-10950856

Email: mirek.gajdecka@gmail.com

Phone available upon request / via LinkedIn message.