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Joshua Gabriel

@joshuagabriel

I optimize PostgreSQL-backed health systems, APIs, and ETL pipelines for reliable production operations.

At Palladium Data.FI, I diagnose and resolve PostgreSQL, backend-service, and dashboard issues for platforms serving 200+ health facilities. I cut query response times by 60% through data-model, indexing, and pipeline optimization, and built CI/CD workflows that reduced deployment time by 45%.

Previously at Jhpiego, I led SQL validation, health-record migrations, and DHIS2/EMR integrations supporting HIV and NCD reporting across 100+ facilities. I build secure REST APIs, resilient ETL pipelines, and auditable cloud deployments while translating urgent field issues into practical engineering fixes.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer & Health Informatics Specialist

Current

Palladium (Data.FI)

Nov 2023 - Present (2 years 11 months)

Diagnosed and resolved complex production issues across PostgreSQL, backend services, and multi-tenant dashboards serving 200+ health facilities. Cut query response times by 60% by optimizing PostgreSQL data models, indexing strategy, and DTO-based data pipelines.

Health Informatics Assistant

Jhpiego

May 2021 - Oct 2023 (2 years 5 months)

Led SQL-based data validation and troubleshooting in PostgreSQL to identify and correct data-integrity issues, improving reporting accuracy across HIV and NCD programme datasets. Managed end-to-end migration of health records from legacy paper-based systems into digital platforms, cutting data-entry delays by 40%.