About
Full stack engineer with 4+ years building production web applications. I work across the stack but my focus is backend systems, cloud infrastructure, and making sure things don't break at 3 AM.
I've built and maintained services handling millions of requests, set up CI/CD pipelines and monitoring from scratch, migrated legacy systems without downtime, and mentored developers who now ship better code than when I found them.
I care about systems that are observable, deployable, and boring in the best way. If it runs in production, it should be instrumented. If it deploys, it should be automated. If it fails, it should fail loudly and recover gracefully.
Stack
Core
Infrastructure
Testing
Working Knowledge
Experience
Senior Full Stack Developer
Kumo Solutions (Subcom of Evercomm Co., Ltd.)Lead engineer on full stack applications built with Node.js and React. Own architecture decisions, CI/CD pipelines, cloud infrastructure, and code quality standards across the team.
- ▸Reduced API response times by 60% through query optimization, caching layers, and connection pooling
- ▸Built and maintained CI/CD pipelines on Azure DevOps, cutting deployment time from hours to minutes
- ▸Managed cloud infrastructure on AWS using Terraform — provisioned, versioned, reproducible
- ▸Implemented structured logging and monitoring across distributed services, reducing incident response time by 90%
- ▸Mentored junior developers through code reviews, pairing sessions, and architecture walkthroughs
Web Developer
Treasure Solutions Co., Ltd.Built and maintained web applications using Laravel and Vue.js. Focused on backend services, database performance, and API reliability across multiple client projects.
- ▸Built backend services and REST APIs in Laravel serving multiple client-facing applications
- ▸Designed database indexing strategy that reduced query execution times by 70%
- ▸Implemented caching layer with Redis that cut database load by 50% under peak traffic
- ▸Built reusable authentication and authorization middleware adopted across all company projects
- ▸Integrated third-party payment gateways and external service APIs with proper error handling and retry logic
Freelance Developer
Backend-focused freelance work building APIs and services for mobile-integrated platforms — soccer streaming, lottery systems, and content delivery apps paired with Flutter frontends.
- ▸Redesigned backend architecture on a streaming platform, reducing server costs by 40%
- ▸Built real-time notification system using WebSockets and Socket.io for live event updates
- ▸Created data migration scripts for zero-downtime database schema upgrades
- ▸Developed RESTful APIs consumed by Flutter mobile clients with consistent contract design
- ▸Set up development and production environments with Docker and Nginx reverse proxies
Projects
ArrLuu
E2E Encrypted Real-Time Chat
Most chat apps either roll their own crypto poorly or don't encrypt at all. This implements proper E2E encryption with key exchange, forward secrecy considerations, and zero server-side plaintext.
Architecture
Node.js backend with Socket.io for real-time transport, Redis pub/sub for horizontal scaling, BullMQ for async job processing, MongoDB for persistence. Client-side encryption via Web Crypto API.
Microservice Architecture
Event-Driven Service Mesh
Monoliths work until they don't. This project implements service boundaries, message queues for decoupling, and independent deployability to understand where microservices actually help vs. where they add overhead.
Architecture
Node.js services communicating via RabbitMQ, PostgreSQL per service for data isolation, Redis for shared caching, Docker Compose for local orchestration.
Infrastructure as Code
Cloud Provisioning Pipeline
Manual cloud provisioning is error-prone and unreproducible. This codifies the entire infrastructure stack so environments can be spun up, torn down, and audited from version control.
Architecture
Terraform for resource provisioning, AWS (VPC, EC2, RDS, S3), CloudFormation for select AWS-native resources, Ansible for configuration management.