Nicolas Raja Oloan Manurung

Fullstack Engineer at PT. Bank Rakyat Indonesia (Persero) Tbk.

Optimized data retrieval by caching frequently accessed validation parameters between LOS and BRISPOT. Tuned and sanitized over 4+ frequently used queries to improve execution pipeline performance across the builder, driver, and DB engine through proper casting and binding of parameters. Refactored centralized response mapping, logging, and caching mechanisms to improve readability and maintainability. Resolved multiple production-level issues across LOS components. Documented key system components and workflows for LOS and BRISPOT.

Backend Engineer at PT. Synapsis Sinergi Digital (Madhani One SuperApp project)

Developed Business Travel Request (BTR) with complex schema for curation, staff approval, reschedule and refund, and ticketing; maintained Time Off Service and improved performance of creation/fetching data and core approval processes; enhanced notification interval configuration service for courses, class, tests, and Health, Security & Environment (HSE); worked with CI/CD and agile development; ensured good cross-team communication (BA, QA, FE, DO).

Backend Engineer at PT. Synapsis Sinergi Digital

Developed Business Travel Request (BTR) module with complex schema for curation, staff approval, reschedule/refund, non-place of hire request revision, and ticketing. Maintained Time Off Service, optimizing data creation/fetching and implementing breaking changes to core approval processes. Improved notification interval configuration service for courses, class, tests, and Health, Safety & Environment (HSE). Adopted CI/CD and agile practices; maintained strong cross-team communication (BA, QA, FE, DO).

Backend Engineer at PT. Dimy Teknologi Indonesia

Built and developed a disbursement & payouts service (with loan terms) and a savings service integrated with a payment connector. Worked within CI/CD development flow and agile processes. Maintained good communication with QA, FE, DO teams.

Fullstack Developer at VEROKU Mobile Salon App (Veronica Salon)

Developed Veroku Mobile Salon App using Go (Fiber) for backend and Flutter for mobile frontend; integrated third-party service (payment gateway); staged server deployment (no containerization).

Backend Engineer at Veroku Mobile Salon App – Veronica Salon

Developed mobile backend support with Go (Fiber) and Flutter. Used GetX for Flutter state management. Integrated third-party payment gateway. Deployed server stage (no containerization).

Backend Engineer Intern at PT. Synapsis Sinergi Digital (Remote Attendance App project)

Developed roster-scheduling, user management, role permission, and system settings service using Go (Fiber), gRPC, Kafka; CI/CD; agile development; good communication with teams (QA, FE, DO).

Backend Engineer Intern at PT. Synapsis Sinergi Digital

Developed roster-scheduling, user management, role permission, and system settings services using Go (Fiber), gRPC, Kafka, etc. Followed CI/CD workflows and agile practices; maintained clear communication with QA, FE, DO.

Flutter Developer at UNAI Reminder App (UNAI Cybercup Project)

Created a Reminder Android app with Flutter; scheduled background notifications using android_alarm_manager_plus; implemented continued scheduling with flutter_background_service.

Software Developer at UNAI Cybercup Project

Created an Android reminder app using Flutter. Implemented scheduling of background notifications with android_alarm_manager_plus and ongoing background tasks with flutter_background_service.