The Postgres Guy
Giovanni Martinez
Database Support Engineer at Tiger Data · AWS Community Builder · Creator of PostgreSQL tools that help teams ship faster.
I've spent 10+ years deep in PostgreSQL — from terabyte-scale production systems to time-series workloads with TimescaleDB. I build tools that make working with Postgres less painful and more productive.
thepostgresguy.com is where I publish free, no-signup tools for the PostgreSQL community. iqtoolkit is my open-source project for AI-powered database diagnostics.
When I'm not optimizing queries, I'm writing about PostgreSQL internals, mentoring teams, and contributing to the database community.
AWS Community Builder
I'm recognized by Amazon Web Services as a Community Builder for my contributions to the database and open-source communities. This program connects technical practitioners who are passionate about sharing knowledge and building in public.
My focus areas include cloud-native PostgreSQL, database performance optimization, privacy-first AI tooling for database teams, and mentoring engineers on infrastructure best practices. Being part of this community gives me early access to AWS services and a direct channel to share feedback with product teams.
Technical Skills
Databases
PostgreSQL (10+ yrs), TimescaleDB, SQL Server, Cassandra, MongoDB, MySQL
Cloud & Infra
AWS, Azure, Kubernetes, Docker, Terraform, Puppet
Data Engineering
Apache Airflow, Argo Workflows, Liquibase, CI/CD pipelines
Programming
Python, SQL (T-SQL, PL/pgSQL), Bash, TypeScript
AI/ML
Amazon Bedrock, Ollama (local LLMs), pydantic-ai
Security
TDE, CDC, HIPAA, SOC 2, access control
Experience
Database Support Engineer
Tiger Data
May 2026 – Present
- Technical support for PostgreSQL and TimescaleDB performance issues
- Implement hypertables, compression strategies, and continuous aggregates
- Analyze complex query execution plans and resolve bottlenecks
- Test new TimescaleDB and Agentic PostgreSQL features
Database Administrator / Senior DBA
CoverMyMeds (McKesson)
Feb 2022 – Apr 2026
- PostgreSQL performance and stability on terabyte-scale production
- Datadog-based monitoring and real-time alerting
- Database deployments in Kubernetes (CloudNativePG, Liquibase CI/CD)
- Mentored team in Python, PostgreSQL, Kubernetes, and Terraform
Senior Database Architect
KCF Technologies
Dec 2020 – Feb 2022
- PostgreSQL server monitoring, maintenance, and optimization
- Index tuning, query optimization, and scalable schema design
Platform Operations Engineer / DBA
Aspect Software
Jun 2016 – Dec 2020
- Cassandra, PostgreSQL, MongoDB, MySQL, SQL Server support
- Zero-downtime MongoDB upgrade
- Platform provisioning automation (Bash/Python/PowerShell)
Database and Systems Administrator
EDP University of Puerto Rico
Jan 2012 – Jun 2016
- SQL Server production instances and maintenance
- SSIS packages, reports, and automations
Certifications
Cloud & AI
- Azure AI Fundamentals (AI-900)
- Azure Solutions Architect Expert
- Azure Administrator Associate
Kubernetes
- CKA: Certified Kubernetes Administrator
- CAPA: Certified Argo Project Associate
Data Engineering
- Astronomer Certification for Apache Airflow
- Liquibase Certified Practitioner
Database & Security
- MCSA: SQL Server 2012/2014
- Apache Cassandra 3.x Administrator
- Certified Ethical Hacker (CEH)
- PCEP: Python Programmer
Education
Master's, Information Security and Assurance
Western Governors University
Bachelor's, Information Systems – Networks
EDP College of Puerto Rico