Thomson Sitohang

I’m a Software Engineer with 10+ years of experience building fintech, lending, HR, and web applications. I focus on system analysis and API-driven development to deliver scalable backend solutions that improve efficiency and reduce operational cost.

At DANA Indonesia, I led end-to-end integration of a new verification service platform by building APIs to support the verification process, reducing operational costs by 30%. I created technical solution designs for user management, risk analysis, and verification-related products, and implemented an optimized Java multithreading solution that consolidated repetitive checks, reducing completion time by 80% while improving feature conversion. I also collaborated with the risk strategy team to optimize OTP SMS strategy (approximately 50% cost reduction) and managed verification methods to reduce operational costs by 20%, while maintaining the quality and accuracy of DANA user KYC data.

Previously at UangTeman.com, I built a core lending system supporting 10,000+ loan applications per month, developed a back-office application that reduced processing time by 50%, and integrated payment gateways with a 99% repayment success rate. I also automated loan application and approval workflows, cutting turnaround time by 60%. Earlier, as a .NET Developer at PT Lawencon International, I built an HR application for Kapal Api that reduced recruitment processing time by 90% and automated recruitment process reporting, reducing preparation time by 80%.

I began my career as an Application Analyst at PT Ivatama Teknologi, where I developed and maintained .NET-based web applications using Sitecore and delivered improvements for BCA’s priority customer website, including 70% faster content management processing and about 50% higher traffic. I thrive in Agile Scrum environments, partnering across cross-functional engineering teams and stakeholders to ship reliable, measurable solutions.