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Edwaldo Utama

@edwaldoutama

Senior Software Engineer at PT. Digital Rox Indonesia who cut infrastructure costs by over 70% and built an AI customer-support agent.

Indonesia

Message

At PT. Digital Rox Indonesia, I improved infrastructure reliability and reduced monthly infrastructure costs by over 70%. I also led and contributed to Admin v2 workflow automation features that reduced manual processing time by 90%.

I built an AI customer-support agent using LangChain/LangGraph ReAct and integrated it with Chatwoot to handle FAQ responses, order lookups, and payment checks. I also spearheaded the migration of key backend modules from Node.js to Golang.

At PT. BFI Finance Indonesia Tbk, I engineered an event-driven loan rescheduling flow that reduced P95 latency from 5 seconds to under 0.5 seconds. I also built an event-driven e-signature platform that reduced loan-disbursement time from about a day to minutes and provided a compliance audit trail.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

PT. Digital Rox Indonesia

Dec 2025 - Aug 2026 (8 months)

Improved infrastructure reliability and led development of core features, including an internal proxy payment gateway and Admin v2, reducing manual processing time by 90% and infrastructure costs by over 70%. Spearheaded migration of backend modules from Node.js to Golang and implemented CI/CD workflows.

Software Engineer

PT. BFI Finance Indonesia Tbk

May 2025 - Dec 2025 (7 months)

Built loan status tracking system and event-driven architecture for loan re-scheduling, reducing latency from 5 seconds to under 0.5 seconds. Implemented RabbitMQ validation pipeline, Redis idempotency, and achieved over 95% unit test coverage.

Go Solid.Js TypeScript Git Microservices JWT PostgreSQL RabbitMQ NATS GCP GWS Redis Kubernetes gRPC Datadog Temporal ArangoDB

Software Engineer Team Lead

PT. Amani Group

Apr 2024 - May 2025 (1 year 1 month)

Led development of key features including Master-Material, Real Estate Management, and CRM modules. Coordinated with C-level executives, mentored junior team members, and implemented design patterns and performance optimizations.

Go Next.js NestJS Express React TypeScript Git Microservices JWT Axios Redux PostgreSQL RabbitMQ GCP Redis Atomic Architecture WebSockets Xendit

Software Engineer

PT. CIMB Niaga

Aug 2023 - Apr 2024 (8 months)

Developed and maintained key features in IProC, integrated third-party APIs, refactored deprecated code, and optimized SQL queries. Participated in Agile environment and documented all implemented features.

PHP CodeIgniter CSS Bootstrap React TypeScript MySQL SQL Server ExpressJS Git jQuery Redux Microservices NATS

Software Engineer

PT Intellix Global Crossing

May 2022 - Jun 2023 (1 year 1 month)

Engineered and optimized features for clients including BRI Danareksa Sekuritas, Bank Mega Syariah, and Bank Sampoerna. Refined SQL tuning for databases with over 5 million records and led penetration testing.

NodeJS Express React PHP CodeIgniter MongoDB MySQL PostgreSQL Redis JavaScript jQuery Git HTML CSS SCSS Webpack

Software Engineer

Software Engineer Freelancer

Jan 2019 - Dec 2022 (3 years 11 months)

Developed over 10 custom web applications, managed ongoing upgrades, and delivered custom training to users.

HTML CSS Bootstrap JavaScript ExpressJS PHP Laravel MySQL React Git

Software Engineer

Smart Integrated System

Jan 2019 - Dec 2020 (1 year 11 months)

Developed and implemented software solutions based on client requirements, including REST APIs for Android mobile apps, and delivered technical training.

PHP CodeIgniter Laravel React MySQL Git