Jonathan Silalahi

• Lead Engineer at a payment service provider (PSP) within OXZ Capital's portfolio, processing over US$500M in monthly transactions.
• Spearheaded a system rewrite under a new brand with a modern tech stack, optimizing scalability and performance.
• Built backend infrastructure from scratch and integrated multiple SEA payment gateways (Thailand, Vietnam, Indonesia).
• Contributed to the implementation of DevOps processes, including CI/CD pipelines for efficient development and deployment.
• Designed and implemented monitoring and alerting systems using OpenTelemetry and New Relic to ensure high availability and reliability.
• Conducted load testing, ensuring the system is scalable and capable of handling high transaction volumes efficiently.
• Successfully delivered the company's MVP within 3 months, meeting tight deadlines and business requirements.
• Recruited engineers across Backend, Frontend, and QA roles from Mid to Lead levels to scale the engineering team.
• Led project delivery, ensuring timely and high-quality feature rollouts.

• Acted as a technical troubleshooter across multiple teams, resolving complex issues to maintain operational excellence in both Lending and Wealth domains.
• Collaborated with 2 Staff Engineers and 5 Engineering Managers to tackle technical challenges for the Lending and Wealth teams, ensuring smooth delivery and alignment with business goals.
• Partnered with the VP and Head of Engineering to design and implement team KPIs, driving measurable improvements in engineering productivity and accountability.
• Contributed to strategic decision-making by participating in roadmap planning sessions, aligning engineering initiatives with company goals, and ensuring cross-team collaboration for seamless product delivery.
• Addressed data reconciliation issues effectively, ensuring accuracy and consistency across critical business systems.
• Implemented distributed tracing across all services, significantly enhancing system observability, enabling faster identification of performance bottlenecks and issues.
• Transitioned from standard logging to structured logging, resulting in streamlined log searches, better filtering capabilities, and improved debugging processes.

• Led a cross-functional team of 8 engineers, including 3 backend, 1 Android, 1 iOS, 1 frontend, and 2 QA, responsible for the development of Wealth team products.
• Streamlined customer issue resolution by implementing robust alert systems, reducing customer service tickets by 50% and accelerating resolution times.

Contributed to the development of KoinWorks' financial technology platform.