Open to opportunities

Hans Maatita

@hansmaatita

Data Engineer with nearly 9 years building large-scale production pipelines, schema evolution, and governed data systems.

Australia

Message

What I'm looking for

I’m seeking remote contractor Data Engineer opportunities where I can apply data governance principles and architectural thinking to build reliable, production-grade data systems with strong engineering discipline in complex environments.

I’m a results-driven Data Engineer with nearly 9 years of enterprise software engineering experience and a Master of Data Science (Data Engineering Specialisation). I’ve built and maintained large-scale data systems, focusing on schema evolution, data migration, data governance, and reliable production pipelines in complex environments.

In recent work, I designed scalable AWS-backed infrastructure and an end-to-end data processing pipeline integrating AI models to deliver automated coaching insights. Earlier, I contributed to zero-data-loss enterprise migrations (including SAP), engineered data transformation workflows, and implemented robust engineering patterns like idempotency, automated error handling, and retries to ensure data quality and system stability.

Experience

Work history, roles, and key accomplishments

Full-Stack Web & AI Engineer

University of Sydney

Feb 2026 - Jun 2026 (4 months)

Collaborated in an 8-member agile team to build an AI audio/video coaching engine, designing scalable AWS backend infrastructure and an end-to-end data processing pipeline. Integrated AI models (faster-whisper, SBERT, Vader) for narration friction detection and automated coaching insights using Python FastAPI and database migrations.

AWS EC2 Amazon SQS Amazon Aurora Python fastAPI SQL Data Pipelines Integrating AI Models CI CD

Data & Software Engineer

Major National Chemical & Fertilizer Corporation

Jan 2021 - Jan 2025 (4 years)

Contributed to large-scale database migrations, synchronizing complex enterprise datasets (including SAP) with zero data loss. Architected data transformation workflows with schema evolution, using raw SQL/ORMs and implementing idempotent, resilient data engineering patterns with data quality checks for national-scale stability.

Data Migration ETL ELT Data Governance Data Quality ORM

Full-Stack & Backend Software Engineer

Upward Project

Jan 2018 - Jan 2021 (3 years)

Developed and maintained enterprise full-stack web applications and mobile solutions using Laravel, MySQL, and Java. Built and optimized RESTful APIs for data transformation and integration, managing relational schema design and automated migration workflows while advising on database migration strategies and architecture.