Rio Rheza Harris

Indonesian fintech remittance app, backed by YCombinator and East Ventures

Hands-on technical lead: ~70% IC work (backend systems, AI infrastructure), ~30% engineering leadership. Direct report to CTO.
- Architecture & Cost Optimization: Engineered a decoupled Marketing Engine for growth features, improving system agility while reducing infrastructure costs by 150M++ IDR/year.
- Reliability & Qua

Digital transformation agency for enterprise manufacturing and automotive-supply-chain clients

- Backend Development: Delivered roughly half the backend codebase for a supply-chain compliance platform for automotive parts manufacturers, including role-based access control and company-scoped data filtering across approval workflows.
- Document & Workflow Automation: Built PDF/Excel export pipelin

Trusted Indonesian marketplace for pre-owned luxury goods (+150k followers)

- End-to-End Delivery: Orchestrated the digital transformation of a 500M++ IDR project, successfully launching a synchronized ecosystem (Website, Mobile App, OMS, and WMS) with a 100% on-time delivery record.
- Technical Leadership & Execution: Directed a cross-functional team of 6 developers while contributing 50% of the

- Automation & Reliability: Built API testing suites and QA automation that saved 500+ engineer-hours per month, increasing deployment velocity across distributed backend services.
- Backend Development: Led end-to-end development of Subscription modules, Workflow Approvals, and Jack Notification systems for the B2B suite — complex financial workflows built for production scale.

- Verification Systems: Engineered automated verification logic (Auto Payment & EDD) to accelerate transaction processing while maintaining strict financial compliance.
- Growth Features: Built and launched the company's first B2C acquisition and retention systems — Affiliate, Referral, and Loyalty programs — where no acquisition channel had existed previously.

Completed an intensive, immersive bootcamp focused on scalable backend architecture and high-performance engineering using the Go ecosystem.
- Backend Engineering: Mastered Golang fundamentals, concurrency paradigms, and advanced troubleshooting.
- System Architecture: Engineered and scaled RESTful APIs and Microservices using RPC frameworks, JWT authentication, and 3rd-party integrations.
- Datab

Front End: React, React Native, Vue, Apollo-Client, Socket.io, Redux, Vuex, JQuery, Bootstrap
Back End: node.js, express.js, PostgreSQL, Sequelize, MongoDB, GraphQL, Apollo-Server, Redis, Jest

Thesis topic: Computational Fluid Dynamics (CFD) Simulation on 2018 Formula 1 Car.

Bachelor of Science in Aerospace from Institut Teknologi Bandung from 2012 to 2016.