Matthew W.

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Freelancer Overview

With over 15 years of experience in backend engineering and cloud-native application development, I have worked extensively with large-scale, regulated datasets in healthcare and finance, focusing on data integrity, processing, and security. My background includes designing and optimizing microservices and APIs for real-time patient data management at Mayo Clinic, where I implemented data pipelines, automated data migration, and built robust systems for handling high-volume, sensitive medical records. I am highly skilled in Java, Spring Boot, Kafka, AWS (including Lambda, S3, RDS, and Data Pipeline), and have hands-on experience with data validation, quality assurance, and compliance with standards such as HIPAA. My work has involved integrating complex data sources, developing data visualization dashboards, and ensuring reliable, accurate data flows—critical for AI training data, annotation, and labeling tasks in high-stakes domains. I am passionate about building secure, scalable systems that support advanced analytics, machine learning, and data-driven decision-making.

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