Building Resilient Distributed Systems & Financial Architectures.
I'm Erlando Aubrey — a hands-on Senior Backend & Infrastructure Engineer with 8+ years of experience. I design high-throughput trading platforms, eliminate deployment risks with modern CI/CD, and build financial ledgers where not a single cent can go missing.
The Broken Exchange
Try exploiting a financial ledger. Trigger concurrent double-spending race conditions, floating-point rounding drift, and network retry storms against a live zero-sum ledger.
Friday 5 PM: The Hotfix
A critical payment bug is reported in production at 4:58 PM on Friday. Choose your workflow: edit directly on the live server, or deploy via local-first Git and Docker Swarm.
Queue & Latency Lab
Watch how decoupled message brokers (RabbitMQ / LavinMQ) absorb sudden 5x traffic surges with backpressure, versus synchronous REST HTTP that crashes under load.
State Machine & Battle Resolver
Play a digital TCG combat timing pipeline. Test strict finite state machine (FSM) phase validation, seed-based deterministic RNG drive checks, and cryptographic state hashing.
Tetris Puzzle Solver & Visualizer
Interactive polyomino exact-cover tiling engine. Solves dynamic grid packing using recursive backtracking with island gap pruning, checkerboard parity checks, and live hover cell inspection.
Huffman & Hex Stream Compressor
Interactive file compression engine based on peer-reviewed academic research published by Erlando Aubrey Nathaniel (DOI: 10.33197/jitter.vol5.iss3.2019.295). Experience dynamic prefix-free tree generation, entropy analysis, and binary-to-hexadecimal stream serialization.
Deep Q-Network Signal Recommender
Interactive reinforcement learning engine based on Erlando's undergraduate thesis: Personalized Trading Signal Channel Recommendations. Simulates Nguyen-Widrow neural weight initialization, live Q-score feedback loops, and 94% recommendation diversity.
// Backend & Architecture
- Node.js / TypeScript
- PHP / Laravel
- Python
- AMQP (RabbitMQ, LavinMQ)
- AMQP RPC & Pub/Sub
- PostgreSQL & MySQL
- Redis (Locking & Caching)
// DevOps & Infrastructure
- Linux Server Admin
- Docker & Docker Swarm
- AWS (EC2, S3, RDS, VPC)
- Cloudflare (DNS, WAF, Edge)
- NGINX & Caddy
- GitHub Actions & Jenkins
- Git Local-First Workflows
// Observability & Mobile
- Prometheus (Metrics)
- Grafana Dashboards
- Grafana Tempo (Tracing)
- Firebase (FCM, Realtime)
- Flutter, Kotlin, Swift
- 0-to-1 App Store Releases
- Financial Accounting / Ledgers
Erlando Aubrey
8+ years engineering high-scale financial and trading infrastructure at PT Traders Family Indonesia. Passionate about deep engineering execution as an Individual Contributor (IC). Open to global remote roles and international relocation.