Senior Cloud Services Specialist · Freelancer · OSVČ Senior Cloud Services Specialist · Freelancer · Contractor

ENTERPRISE IT. ZKUŠENOSTI, THE EXPERTISE KTERÉ FUNGUJÍ. THAT WORKS.

25+ let v IT infrastruktuře. Linux/UNIX, SAN/FC, enterprise storage, VMware a cloudové služby. Pomáhám firmám s infrastrukturou, která opravdu funguje. 25+ years in IT infrastructure. Linux/UNIX, SAN/FC, enterprise storage, VMware and cloud services. I help companies build infrastructure that actually works.

25+ Let v IT
15+ Enterprise klientů
PB+ Dat pod správou
24/7 Podpora & spolehlivost
Foto — Josef Svitak
NetApp ONTAPIBM FlashSystemHPE AlletraBrocade FCVMwareKubernetesTrident CSIDockerLinux/UNIXCommVaultVeeamMikroTikWireGuardMinIO S3NessusNagios

Infrastruktura je základ. Starám se, aby byla spolehlivá. Infrastructure is the foundation. I make sure it is reliable.

Jmenuji se Josef Svitak. V IT infrastruktuře pracuji od roku 2000. Posledních 12+ let působím v T-Mobile Czech Republic a.s. jako Senior Cloud Services Specialist a System specialist UNIX/SAN; předtím jsem řešil UNIX/SAN provoz v T-Systems a správu serverů, sítí a aplikací v NWT a Crystalexu. My name is Josef Svitak. I've worked in IT infrastructure since 2000. For the last 12+ years I've been at T-Mobile Czech Republic a.s. as a Senior Cloud Services Specialist and System specialist UNIX/SAN; before that I worked on UNIX/SAN operations at T-Systems and server, network and application administration at NWT and Crystalex.

Specializuji se na Linux/UNIX provoz, enterprise storage a SAN: IBM, Hitachi, NetApp, EMC, Cisco/McData/Brocade fabrics, VMware, Xen/Citrix XenServer a KVM. Mám praxi i v bezpečnosti, monitoringu a síťových službách — Nessus, penetrační testování, DNS/mail/proxy/LDAP a Nagios. I specialize in Linux/UNIX operations, enterprise storage and SAN: IBM, Hitachi, NetApp, EMC, Cisco/McData/Brocade fabrics, VMware, Xen/Citrix XenServer and KVM. I also have experience in security, monitoring and network services — Nessus, penetration testing, DNS/mail/proxy/LDAP and Nagios.

Vedle práce provozuji vlastní malou IT infrastrukturu pod značkou LC Andel — hosting, AD, MikroTik, VoIP, NAS, WireGuard VPN. Vím, jak věci vypadají z obou stran: enterprise i SMB. Outside of work I run my own small IT infrastructure under the LC Andel brand — hosting, AD, MikroTik, VoIP, NAS, WireGuard VPN. I know how things look from both sides: enterprise and SMB.

  • BankID, MVCR, Český senát, Skanska, Conseq, GeoPost a další BankID, MVCR, Czech Senate, Skanska, Conseq, GeoPost and more
  • LinkedIn: T-Mobile, T-Systems, NWT, Crystalex; Linux/UNIX, SAN, storage, security, monitoring LinkedIn: T-Mobile, T-Systems, NWT, Crystalex; Linux/UNIX, SAN, storage, security, monitoring
  • Dostupný jako freelancer / OSVČ pro projekty a konzultace Available as freelancer / contractor for projects and consulting
Promluvme si Let's Talk

Co umím a nabízím What I Do

Od návrhu a implementace až po troubleshooting a optimalizaci. Pracuji s enterprise technologiemi, ale bez enterprise byrokracie. From design and implementation to troubleshooting and optimization. I work with enterprise technology, without the enterprise bureaucracy.

Storage

Enterprise Storage Enterprise Storage

NetApp ONTAP, IBM FlashSystem, HPE Alletra. Návrh, implementace, migrace, troubleshooting. SAN/FC fabrics (Brocade). Protokoly: FC, NVMe-FC, iSCSI, NFS, CIFS/SMB, S3. NetApp ONTAP, IBM FlashSystem, HPE Alletra. Design, implementation, migration, troubleshooting. SAN/FC fabrics (Brocade). Protocols: FC, NVMe-FC, iSCSI, NFS, CIFS/SMB, S3.

  • NetApp ONTAP — kompletní správa NetApp ONTAP — full management
  • SAN fabric design a zoning SAN fabric design and zoning
  • Performance tuning a analýza Performance tuning and analysis
  • SnapMirror, MetroCluster DR SnapMirror, MetroCluster DR
Cloud Native

Kubernetes & Storage Kubernetes & Storage

Trident CSI pro NetApp storage v Kubernetes. Ceph/Rook cluster setup. MinIO S3 objektové úložiště. OpenShift storage integrace. Trident CSI for NetApp storage in Kubernetes. Ceph/Rook cluster setup. MinIO S3 object storage. OpenShift storage integration.

  • NetApp Trident CSI deployment NetApp Trident CSI deployment
  • Ceph / Rook cluster Ceph / Rook cluster
  • MinIO S3 objektové úložiště MinIO S3 object storage
  • Helm charts, PVC management Helm charts, PVC management
Virtualization

VMware & vCloud VMware & vCloud

ESXi, vCenter, vCloud Director. Integrace s enterprise storage (FC, iSCSI, NFS). VM migrace, performance tuning, storage DRS. ESXi, vCenter, vCloud Director. Integration with enterprise storage (FC, iSCSI, NFS). VM migration, performance tuning, storage DRS.

  • vSphere design & deployment vSphere design & deployment
  • Storage integrace FC/iSCSI/NFS Storage FC/iSCSI/NFS integration
  • VM a datastore migrace VM and datastore migration
  • Performance diagnostika Performance diagnostics
Backup & DR

Backup a disaster recovery Backup & Disaster Recovery

CommVault enterprise backup. Veeam Backup & Replication. BareOS. NDMP pro NetApp. DR plánování s SnapMirror a SVM-DR. CommVault enterprise backup. Veeam Backup & Replication. BareOS. NDMP for NetApp. DR planning with SnapMirror and SVM-DR.

  • CommVault implementace CommVault implementation
  • Veeam pro VMware prostředí Veeam for VMware environments
  • NetApp SnapMirror / SVM-DR NetApp SnapMirror / SVM-DR
  • RTO/RPO plánování RTO/RPO planning
Linux & Automation

Linux & automatizace Linux & Automation

RHEL/CentOS/Debian server administrace. Multipath konfigurace. Performance tuning. Bash a Python automatizace. ISPConfig hosting management. RHEL/CentOS/Debian server administration. Multipath configuration. Performance tuning. Bash and Python automation. ISPConfig hosting management.

  • Server setup a hardening Server setup and hardening
  • SAN multipath konfigurace SAN multipath configuration
  • Bash/Python automatizace Bash/Python automation
  • Monitoring: Zabbix, Grafana Monitoring: Zabbix, Grafana
Network & Security

Síť a bezpečnost Network & Security

MikroTik RouterOS — firewall, VLAN, WireGuard VPN. Správa SSL certifikátů. SSH hardening. Fail2ban. ISPConfig hosting. MikroTik RouterOS — firewall, VLAN, WireGuard VPN. SSL certificate management. SSH hardening. Fail2ban. ISPConfig hosting.

  • MikroTik konfigurace MikroTik configuration
  • WireGuard VPN deployment WireGuard VPN deployment
  • SSL/TLS certifikáty SSL/TLS certificates
  • Malé firmy & self-hosted SMB & self-hosted setups
25+ Let v IT infrastruktuře
15+ Klíčových klientů
PB+ Dat pod správou
6 Technologických domén

Klienti, kterým jsem pomohl Clients I've Helped

V rámci T-Mobile Czech Republic a.s. jsem pracoval pro tyto organizace jako primární nebo přispívající inženýr. As part of T-Mobile Czech Republic a.s. I worked for these organizations as primary or contributing engineer.

BankIDMVCR — Ministerstvo vnitraČeský senátSkanska CZConseq InvestmentGeoPost (DPD)CUZKNKP — Národní knihovnaCSU — Statistický úřadRaben LogisticsEuromediaN4GOriflameSecuritas

Jednoduchý proces, spolehlivý výsledek Simple Process, Reliable Result

01

Analýza Analysis

Pochopím vaši situaci, infrastrukturu a cíle. Žádné zbytečné schůzky — jdeme na věc. I understand your situation, infrastructure and goals. No unnecessary meetings — let's get to it.

02

Návrh Design

Navrhnu řešení přesně na míru — s ohledem na vaše prostředí, rozpočet a časový rámec. I design a solution tailored to your environment, budget and timeline.

03

Implementace Implementation

Realizuji projekt s minimálním dopadem na provoz. Dokumentuji každý krok. I implement the project with minimal impact on operations. I document every step.

04

Podpora Support

Po dokončení zůstávám k dispozici. Monitoruji, ladím, řeším problémy. After completion I remain available. I monitor, tune, solve problems.

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Have a project?
Let's talk.

Hledáte pomoc s enterprise storage, Kubernetes, VMware nebo obecně s infrastrukturou? Napište mi — odpovím do 24 hodin. Looking for help with enterprise storage, Kubernetes, VMware or infrastructure in general? Write to me — I'll respond within 24 hours.