Hi, I'm Sebastian

Senior Infrastructure & Database Engineer

18+ years of experience in

Let's Talk

About Me

Over the past 18+ years, I've worked across database administration, infrastructure, Linux systems, networking and production operations.

My primary focus is database and infrastructure engineering, particularly PostgreSQL and MySQL environments running on Linux.

My experience includes high availability, replication, performance troubleshooting, backup and recovery, networking, load balancing, monitoring and infrastructure automation.

Having worked across both databases and the infrastructure around them allows me to approach production issues beyond the database engine itself, considering the operating system, network, connectivity and surrounding infrastructure.

Areas of Expertise

Database Infrastructure

PostgreSQL, MySQL, replication, performance and production database operations.

High Availability

Highly available database environments, replication, failover and recovery.

Linux & Infrastructure

Linux systems, networking, virtualization and production infrastructure.

Automation

Terraform, Docker, scripting and operational automation.

Technical Skills

Databases

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

Infrastructure

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

Database Operations & High Availability

  • High Availability
  • Replication
  • Performance Tuning
  • Backup & Recovery
  • Monitoring
  • HAProxy
  • ProxySQL
  • PgBouncer
  • Keepalived

Automation & Tooling

  • Terraform
  • Docker
  • Ansible
  • Bash
  • Python
  • Git

Recent Blog Posts

OPS
InfrastructureMonitoring

How to Read Operational Dashboards Without Being Misled

BY SEBASTIAN INSAUSTI · 2026-09-07 · 4 min read

Recognize misleading scales, aggregations, missing context, and panel semantics before acting on an operational dashboard.

READ MORE →
P99
InfrastructureMonitoring

Percentiles, Variance, and Standard Deviation for Engineers

BY SEBASTIAN INSAUSTI · 2026-09-06 · 4 min read

Interpret percentiles, variance, and standard deviation correctly when analyzing latency, workload, and database performance.

READ MORE →
DB
DatabasesMonitoring

Practical Database Monitoring with Prometheus and Grafana

BY SEBASTIAN INSAUSTI · 2026-09-05 · 8 min read

Build a PostgreSQL and MySQL monitoring stack with useful metrics, alerts, and daily DBA workflows.

READ MORE →
CF
InfrastructureNetworking

Cloudflare for Personal Websites: DNS, Proxying, and Workers

BY SEBASTIAN INSAUSTI · 2026-09-04 · 6 min read

Understand what Cloudflare provides for free, what Workers are, and when a paid plan becomes worthwhile.

READ MORE →

Get in Touch

Contact Info

sebastian@insaustis.com
Remote / Worldwide