Thomas Harper

Background

About Thomas Harper

I am an experienced back-end developer with a strong track record of building efficient, long-lasting data processing services. My applications have seamlessly operated for years, adapting to evolving requirements through configurable rule management. I have collaborated with customers to troubleshoot legacy code, implement strategic improvements, and lead impactful changes—most notably reducing customer workload by 10% through a major system overhaul. Beyond development, I have played a key role in mentoring team members, guiding them in adopting modern coding practices and transitioning from Visual Basic.Net to C#. My ability to review and optimize existing code earned me the nickname “Code Janitor”, as I specialized in reducing technical debt and ensuring code quality through SOLID principles and DRY methodologies. I have trained developers in advanced techniques, including leveraging generics to minimize repetitive code. I have also developed expertise in Linux and Unix, supporting critical sourcing systems and modernizing legacy C applications. As a subject matter expert (SME) in sourcing processes, I have mastered database architecture, optimizing data flow across supplier onboarding, purchasing, and finance. As part of the Tech Modernization initiative, I have pushed for domain-driven architecture, advocating for microservices to enhance efficiency and scalability. I have developed adapters for generic processing, minimizing redundant algorithm development, and have built seamless API solutions to facilitate data integration across internal and external applications. Expanding my skill set, I have applied.NET Core methodologies to Java/Spring, ensuring consistency across development environments. I have actively mentored junior developers, helping them advance rapidly to senior roles. Additionally, I have designed ETL processes to synchronize legacy databases with modern systems, maintaining downstream application integrity.