Full Stack Software Engineer · Backend-leaning · Go / PHP / Node.js / TypeScript
Building high-performance, scalable systems — and engineering with AI agents, not just using them.

I turn complex, ambiguous problems into elegant, well-tested solutions — one line of code at a time. 🚀

Languages

Frameworks & Runtimes

Infrastructure & Data

Observability & BI

Architecture & Practices — REST API design · Microservices & monoliths · Event/worker queues · Repository & service-layer patterns · SOLID · Database design & query optimization · CI/CD

I don't just use AI assistants — I treat LLMs as a programmable layer of the stack and study how to drive them reliably. Currently leveling up on:

• Prompt engineering for code — task decomposition, few-shot & structured (schema-constrained) outputs, evaluation-driven prompting, and reducing hallucination on programming tasks.
• Agentic workflows — building multi-step agents with tool use, planning/execution loops, and verification gates; orchestrating parallel sub-agents for research, code review, and refactoring.
• AI-assisted development in practice — I work daily with Claude Code and agentic harnesses to plan, generate, review, and test code, applying TDD and code-review loops rather than blind acceptance.
• LLM application patterns — the Anthropic Claude API (Messages, tool use, streaming, prompt caching), RAG, cost-aware model routing, and MCP-style tool servers.

🎯 Goal: ship production software where AI agents handle a large share of implementation under tight human-defined specs, tests, and review gates — measurably faster, without sacrificing quality.

Concurrent Go importer handling 1M+ records, with optimized PostgreSQL bulk-insert and worker pooling for throughput. 🔗 golang_import_large_csv_pgsql

Cashback upload & processing service split across a Go ingestion worker and a PHP application layer — a real production-style microservice pairing. 🔗 jnt-cashback-upload-service

Monorepo exploring API gateway patterns — routing, aggregation, and ingress configuration with KrakenD. 🔗 krakend-playground-monorepo

File-processing worker using gRPC for inter-service communication in a subscription pipeline. 🔗 dummy-subscription-worker-file-processing-grpc

Cross-platform Flutter app delivering student study material on the pre-historic age. 🔗 bbook

A curated, hand-crafted Golang reference of practical snippets for fast lookup. 🔗 golang-cheat-sheet

Production systems delivered for businesses and government agencies. Source is private (client / NDA), so these are described by scope, stack, and impact.

A comprehensive ERP covering the full medical-supply lifecycle — repair workshops, imports, purchase orders, multi-branch sales, document-oriented records, and shipping & delivery orders — fronted by a public catalogue website. Document storage and backups run on a self-hosted Synology NAS. Laravel · Synology NAS · MySQL

A safety-calculation engine for the mining & petrochemical industries, codifying domain formulas and compliance logic. Built with Express.js on Supabase, deployed to a hand-tuned VPS with object storage (OSS), and observed end-to-end with Grafana + Loki for metrics and logs. JavaScript · Express.js · Supabase · VPS · Grafana · Loki · Object Storage

A Laravel e-commerce store with integrated payment-gateway checkout, cart, and order-fulfillment flow. Laravel · Payment Gateway

Dataset sharing and BI dashboard integration for Badan Pangan Nasional (National Food Agency) and Badan Kepegawaian Negara (National Civil Service Agency) — surfacing national datasets through Power BI and Tableau dashboards. Power BI · Tableau · Data Integration

A Laravel application tracking the halal-certification process with document storage and a full audit trail. Laravel

Laravel-based stock control, item movements, and multi-location reporting. Laravel

A Laravel HRIS managing employee records and core HR operations. Laravel

• ⚡ Performance optimization & scalable backend architecture
• 🧱 Clean, maintainable code (SOLID, repository/service patterns)
• 🔌 API design — REST, gRPC, API gateways
• 🤖 AI-assisted & agentic development workflows
• 👥 Mentoring & cross-functional collaboration
• 📊 Agile / Scrum delivery
• 🧠 Strong analytical & problem-solving mindset

• 🌐 Portfolio — aldyhelix.github.io
• 💼 LinkedIn — Aldy Satria Gumilar
• 📧 Business — aldy.satria07@gmail.com
• 📧 Personal — aldyhelix01@gmail.com

Open to remote opportunities worldwide — let's build something that scales.