Ahmad Afif Aulia Hariz
Building scalable systems that power web applications
6+ years crafting robust backends, microservices, and cloud infrastructure. Passionate about clean code, performance, and solving complex problems.
I'm a software engineer with a deep passion for designing and building scalable, reliable systems. Over the past 6 years, I've worked on high-traffic applications serving millions of users, optimizing performance at every layer of the stack.
My expertise spans API design, database optimization, distributed systems, and cloud infrastructure. I believe in writing maintainable code, thorough testing, and continuous learning. I'm particularly interested in solving complex architectural challenges and mentoring junior engineers.
I'm open to remote opportunities where I can contribute to meaningful projects and grow alongside talented teams. When I'm not coding, you'll find me exploring new technologies, contributing to open-source, or diving deep into system design concepts.
Feb 2026 - Present · Singapore Construction Payment Platform
2025 - 2026 · Singapore Land Authority
2023 - 2025
2022 - 2023
Aug 2021 – Feb 2022 · Jakarta, Indonesia
Microservices platform consolidating 10,000+ Indonesian tax and fiscal regulations into a single searchable corpus, with an explicit document relationship graph, watermarked PDF delivery, and RAG-powered grounded AI summaries. Ten independently deployable FastAPI/Next.js services share a common auth, telemetry, and error-handling library and ship as one reproducible Docker Compose stack, alongside a companion LMS for training and assessment.
Modular, event-driven order processing for low-latency, high-throughput trading. Features idempotent payment handling, double-spend prevention, concurrent balance updates with full transaction integrity, and Redis-backed caching.
Scalable messaging backend using actor-based architecture and gRPC for internal communication, supporting 1 million messages per second per channel. Reduced operational costs from $1M to $100k/month.
Full-stack web application automating telescope operations with real-time monitoring and control. Implemented Alpine.js state management for live image rendering. Eliminated the need for two on-site operators through workflow automation.
Full-stack project management app featuring task boards, drag-and-drop workflow tracking, real-time updates, and RESTful API integration. Built with scalable, reusable component architecture.
Full-stack dental practice web application with a customized CMS, reusable Tailwind CSS component system, and optimized SEO structure with improved metadata and content management workflows.
Dockerized, full-stack aquaculture management platform to digitize end-to-end fish farming workflows. Features a comprehensive multi-module domain model, custom role-aware authentication, and robust unit testing within a server-rendered architecture.
Personal full-stack web application with a unified dashboard centralizing household finances, multi-asset investment tracking via live API integrations, debt tracking, savings goals, vehicle maintenance, and automated invoicing for a side business.
Bandung Institute of Technology (ITB)
I'm open to remote opportunities and collaborations. Feel free to reach out!