01
Linux & Production Infrastructure
Own Linux estates and production operations with a focus on stability, clarity, and maintainable operating practices.
Bangkok, Thailand
systems / infrastructure / automation
Tal SabadiaSenior Linux & Infrastructure Engineer
I design, operate, migrate, and improve reliable infrastructure—across Linux, application delivery, email, monitoring, high availability, and automation.
Available for selected infrastructure and automation projects.
Selected scale
6+years in hands-on infrastructure roles
100sproduction Linux servers administered
About
Systems thinking, with a builder’s curiosity.
I work across the layers where infrastructure problems actually happen: operating systems, applications, network paths, delivery platforms, monitoring, and the automation that connects them.
Outside production work, I build and experiment with useful technology—automation, observability, AI-agent workflows, and occasional web interfaces when they solve a real problem. I am interested in the intersection of systems, design, and turning technical ideas into things that are clear and practical.
Languages
- HebrewNative
- EnglishFluent
- ThaiUpper-intermediate
Capabilities
What I can take ownership of.
Capabilities describe the problems I can solve or own. The technologies behind them appear later under Skills.
02
Infrastructure Automation
Turn repeatable operational work into dependable tooling, provisioning flows, and automation using pragmatic scripts and configuration management.
03
Observability & Investigation
Build useful monitoring, investigate difficult incidents, and connect signals across systems so problems become explainable and actionable.
04
Application Delivery & Networking
Design and troubleshoot traffic flow, load balancing, DNS, network behavior, and application-delivery paths across infrastructure boundaries.
05
Migrations & Modernization
Plan and execute migrations with dependency analysis, staged cutovers, validation, and service continuity at the center of the work.
06
Resilience & Systems Integration
Improve resilience across high-availability services, email infrastructure, data platforms, and the integrations that hold systems together.
Selected work
Infrastructure work with visible consequences.
Sanitized case studies grounded in the current CV. The emphasis is on the engineering problem, approach, and outcome.
01
privacy reviewed / outcome verified
Protected-Network Infrastructure Migration
Moved production services into a protected network while preserving dependable access and coordinating changes across infrastructure layers.
- Approach
- Coordinated Linux and application-delivery changes through IP and DNS preparation, policy validation, staged cutovers, and post-change checks.
- Outcome
- Completed with minimal to zero noticeable user impact.
Stack
- Linux
- F5 BIG-IP LTM
- Palo Alto policy validation
- DNS
02
privacy reviewed / outcome verified
Redis Sentinel High Availability for Moodle
Designed and implemented a high-availability Redis layer for a Moodle environment where continuity and predictable recovery mattered.
- Approach
- Designed the topology, implemented Sentinel-based failover, and validated application behavior and operational recovery paths.
- Outcome
- Improved service resilience and performance with seamless failover behavior.
Stack
- Redis Sentinel
- RHEL
- Moodle
- Monitoring
03
privacy reviewed / outcome verified
Core Systems Migration: CentOS 7 to RHEL 8/9
Migrated critical services from an aging CentOS platform to supported RHEL releases without treating the operating-system change in isolation.
- Approach
- Assessed dependencies, rebuilt and reconfigured critical systems, coordinated validation, and handled staged cutovers and migration issues.
- Outcome
- Modernized core systems while maintaining service continuity.
Stack
- CentOS 7
- RHEL 8/9
- Bash
- Application validation
Personal Lab
Build when there is something worth building.
Independent experiments and personal training with a practical reason to exist—never portfolio filler.
Monitoring & Automation Environment
An independently managed environment for custom checks, templates, triggers, notification flows, and automation experiments.
Useful automation begins with observable state, explicit failure behavior, and workflows that remain understandable after the demo ends.
Stack
- Zabbix
- Ansible
- CIQ Ascender
- Telegram
- Python
AI-Assisted Operations Investigator
A concept for combining monitoring context with agent-assisted investigation steps and structured operational evidence.
AI assistance is most useful when it narrows investigation and preserves evidence—not when it pretends to replace operational judgment.
Stack
- Hermes
- Zabbix
- Python
- AI agents
Experience
Hands-on depth, growing responsibility.
Senior System Engineer
Administered hundreds of production Linux servers, primarily RHEL, while working across application delivery, protected-network migrations, high availability, observability, email infrastructure, automation, cloud, and provisioning workflows.
System Team Leader
Built and led a systems team of up to three engineers while remaining hands-on with Linux, web and email systems, troubleshooting, monitoring, and custom infrastructure solutions.
System Administrator
Administered Linux and Windows hosting infrastructure, expanded monitoring, and resolved server, application, DNS, and network incidents.
Cyber Defense Program
Graduated with honors
Skills
The tools behind the capabilities.
Skills are the technologies, tools, platforms, and technical domains I work with. No percentages, no logo wall.
Linux & Operating Systems
- RHEL
- Linux
- Windows Server
- AlmaLinux / Rocky Linux evaluation
Application Delivery & Networking
- F5 BIG-IP LTM
- Load balancing
- iRules
- TCP/IP
- DNS
- Subnetting
- Palo Alto policy validation
Automation & Scripting
- Bash
- Python
- Ansible
- CIQ Ascender
- AWX workflows
- Git
Monitoring & Observability
- Zabbix
- Grafana
- Kibana
- Custom monitoring
Email Infrastructure
- Postfix
- Cisco IronPort
- SMTP
- SPF
- DKIM
- DMARC
Web & Data Platforms
- NGINX
- Apache
- PHP-FPM
- MySQL
- MariaDB
- Redis Sentinel
- Moodle
Cloud, Virtualization & Containers
- VMware
- Xen
- OCI
- Azure
- Docker
- Docker Compose
Contact
Let’s solve the right infrastructure problem.
Available for selected infrastructure and automation projects.