Track record across enterprise platforms, high-throughput APIs, and scalable systems.
Erasys Consulting
Software Engineer·Full-time (Remote)
5 yrs 7 mos
Architected end-to-end systems for enterprise platforms handling millions of daily requests, spanning server provisioning, CI/CD pipelines, high-throughput APIs, intuitive user interfaces, and LLM/RAG integrations.
Built and scaled the backend for an internal enterprise field operations app serving a nationwide FMCG distributor, sustaining millions of daily requests with sub-100ms response times and providing consolidated visibility over tens of thousands of stores
Engineered nightly cron pipelines and asynchronous SMTP export jobs to synchronize tens of thousands of records with internal systems, eliminating manual reconciliation and unblocking critical workflows
Designed a webhook routing middleware where partner apps register as OAuth2-authenticated listeners, sustaining high-volume integration calls and guaranteeing zero data loss through automatic retries
Delivered a voucher distribution campaign dispatching 50,000 unique codes via the official WhatsApp Business API, utilizing pessimistic locking and explicit transactions to guarantee zero double redemption under concurrent load
Built a payment disbursement service on Midtrans Iris for a product launch guarantee program, enforcing one claim per verified phone with row locking, explicit transactions, and request throttling to block fraud and abuse
Streamlined delivery by provisioning self-hosted GitLab runners and wiring Dokploy staging previews into GitLab CI/CD, automating deployments without manual intervention
Developed full-stack web applications, multi-tenant commerce platforms, and AI-integrated community systems, focusing on clean API design, scalable serverless architectures, and reliable data delivery.
Built a multi-tenant commerce monorepo utilizing a unified API to serve isolated storefronts, relying on middleware-level context scoping to separate brand data without the overhead of maintaining multiple databases
Re-architected a web platform with externalized storage abstraction and framework-level caching, improving content delivery speeds and simplifying localization routing
Implemented rich-text administrative interfaces and automated image delivery pipelines, allowing editorial teams to manage and publish content independently without developer intervention
Developed real-time serverless backends leveraging reactive database subscriptions, enabling live data synchronization for community forums, notifications, and marketing campaigns
Integrated LLMs and vector search databases to build a RAG-based chatbot and automated content generation pipeline, reducing the manual effort required for asset creation and community support
Next.js
TypeScript
React
Tailwind CSS
Prisma
Node.js
Convex
Playwright
PT ICP Cipta Prima
Backend Developer·Freelance
1 yr 1 mo
Engineered backend services and data workflows for an enterprise field service and spare parts management CRM, optimizing Microsoft SQL Server queries, orchestrating multi-tier ticketing lifecycles, and automating parts requisition workflows.
Optimized heavy ticket status queries across core repository layers by refactoring repeated 3x subqueries into single derived-table LEFT JOINs, slashing per-row query execution by 67% and drastically cutting database load on Microsoft SQL Server
Re-architected multi-tier ticket distribution lifecycles and event audit logging across field engineers, supervisors, central dispatch, and helpdesk teams, eliminating race conditions and duplicate event generation
Engineered dynamic multi-tier spare parts requisition workflows, automating location-based approval routing between regional branches and central operations while synchronizing inventory fulfillment with ticket closure states
Developed REST APIs powering mobile field service operations, implementing secure attachment delivery, active assignment filtering to eliminate duplicate technician job feeds, and real-time messaging room sorting
Built bulk import/export pipelines for equipment registries and spare parts catalogs with strict schema validation and uniqueness constraints, preventing dirty data ingestion across enterprise master records
Laravel
PHP
Microsoft SQL Server
REST API
Redis
GitLab
Credeva
Backend Developer·Freelance
1 yr 1 mo
Delivered backend systems powering education, F&B, and enterprise platforms from architecture design to production deployment.
Architected and deployed the backend and CMS for an Islamic boarding school management app, handling digital tuition payments and student academic tracking
Engineered a POS and ordering system for a restaurant with real-time order synchronization, payment gateway integrations, and delivery tracking
Built a multi-feature enterprise platform (polling, loyalty programs, broadcast) powered by Laravel, Redis caching, and MySQL
Laravel
PHP
MySQL
Redis
GitLab
Git
Firebase
Digital Inovasi Bangsa
Full Stack Developer·Full-time (Hybrid)
1 yr 6 mos
Maintained and extended a full-stack system for a government health center (puskesmas), building modular features, CMS dashboards, and high-performance operational workflows.
Engineered new modules for patient electronic records, transforming paper-based workflows into a structured, searchable digital system
Developed administrative dashboards giving staff consolidated visibility and control over operational data and scheduling
Optimized database queries for data-heavy administrative views, reducing page load times for internal staff