Hi there, I'm Sebastian

IT professional with over 18 years of hands-on work as a

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About Me

During my career spanning over 18 years, I have developed a strong foundation in multiple IT domains, including:

  • Networking and Security
  • Database Administration and Optimization
  • Operating Systems and Infrastructure
  • Automation and DevOps Practices

This diverse skill set, combined with my extensive experience working with various database technologies and modern tools, has enabled me to:

  • Design and configure highly available environments that remain performant and reliable
  • Implement robust security measures and best practices across infrastructure
  • Streamline operations through effective automation and monitoring solutions

Specializations

Cloud

Expert cloud architecture and migration services.

Security

Comprehensive security best practices and proactive defense.

Automation

Streamline operations with intelligent automation.

Infrastructure

Scalable and resilient infrastructure tailored to your needs.

Technical Skills

Databases

  • MySQL
  • PostgreSQL
  • MariaDB
  • Galera Cluster
  • Percona Server
  • Percona XtraDB
  • SQL Server

Environments

  • AWS
  • Azure
  • GCP
  • Linux
  • Windows
  • Virtualization
  • Networking

Technologies

  • ProxySQL
  • HAProxy
  • Terraform
  • Docker
  • Performance Tuning
  • High Availability
  • Monitoring

Recent Blog Posts

HA
DatabasesLinux

Galera Cluster: Multi-Master MySQL Replication

BY SEBASTIAN INSAUSTI · 2026-04-01 · 5 min read

Galera's synchronous multi-master replication means every node always has complete data. No designated primary, no replication lag, no failover step needed.

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FAIL
DatabasesLinux

MySQL Automated Failover with Orchestrator

BY SEBASTIAN INSAUSTI · 2026-03-25 · 5 min read

Orchestrator maps your replication topology, detects primary failures, promotes the best replica, and runs your hook scripts — automatically.

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DEPLOY
InfrastructureLinux

Blue-Green and Canary Deployments

BY SEBASTIAN INSAUSTI · 2026-03-10 · 5 min read

Blue-green gives you an instant, reversible traffic switch. Canary lets you validate changes under real traffic before full rollout. Here's when to use each.

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Get in Touch

Contact Info

sebastian@insaustis.com
+1 236 865 9372
Remote / Worldwide