Distributed Systems • ISP Telecom Infrastructure • Agentic AI & Workflow Automation
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Architecting high-throughput distributed systems, automating mission-critical ISP telecommunications, and building production-grade agentic AI pipelines.
Experienced in taking software from physical network topologies to resilient, containerized cloud infrastructure.
- Full-Stack & Distributed Architecture: Modern TypeScript and React ecosystems paired with high-concurrency backend services (Laravel 11, Node.js 20, Go, PostgreSQL, Redis). Experienced in distributed locking, idempotency state machines, and event-driven WebSocket feeds.
- Telecom & ISP Infrastructure: Deep domain knowledge in physical and logical network management: Mikrotik RouterOS binary API, TR-069 GenieACS auto-configuration, RADIUS/PPPoE provisioning, and Leaflet geospatial GIS optical mapping.
- Production AI & Workflow Automation: Designing robust multi-step automation engines using n8n, Gemini Vision API, Groq, and custom Node/Python microservices to extract unstructured data, automate document ingestion, and streamline customer support via RAG.
- DevOps, Virtualization & Security: Bare-metal and cloud operations utilizing Proxmox VE hypervisors, Docker Compose containerization, Cloudflare edge security, WireGuard mesh networks, and hardened mail infrastructure (Mailcow).
- Async-First Global Remote: Structured communicator with a strong documentation habit, comfortable operating autonomously across US, European, and APAC time zones.
| Dimension | Practical Implementation |
|---|---|
| Defensive Security | Zero-secret exposure, strict HMAC webhook signature verification, parameterized queries, and sanitized demonstration mocks. |
| Concurrency & Ledgers | Pessimistic database row locking (SELECT FOR UPDATE) on physical ports, Redis distributed locks for webhook replay protection. |
| Production Reliability | Automated test suites (node --test, PHPUnit) for business-critical logic and graceful network protocol fallbacks. |
| Async-First Delivery | Thorough commit documentation, architecture decision records (ADRs), and clear system boundary definitions. |
Production-grade operations platform for Internet Service Providers (ISPs) featuring interactive geospatial GIS mapping, real-time technician dispatching, and QR-based optical terminal provisioning.
- Tech Stack: React 19, Vite, TanStack Query v5, Zustand, Leaflet GIS, Laravel 11/12, Laravel Reverb (WebSockets), PostgreSQL 16, Redis 7, Docker Compose.
- Field Provenance: Sanitized architectural release extracted from an active commercial deployment powering 1,400+ FTTH subscribers across Indonesia since 2022.
- Key Capabilities: Single-command containerized bootstrap, real-time WebSocket telemetry stream, field technician mobile PWA with GPS watermark verification, GIS capacity heatmaps, and zero-touch ONT provisioning.
- Architectural Showcase: Complete full-stack codebase with sandboxed hardware telemetry mocks for recruiter evaluation.
- Live Interactive Demo: ferihidayat95.github.io/fiberpulse
- Repository: github.com/FeriHidayat95/fiberpulse
Enterprise financial transaction processing, idempotent multi-gateway payment reconciliation (Stripe, Midtrans, Xendit), and automated edge router bandwidth provisioning via Mikrotik RouterOS API and TR-069 CWMP.
- Tech Stack: Node.js 20 LTS, Express.js, MySQL 8.0, Redis 7, RouterOS API, TR-069 GenieACS, Tailwind CSS, Docker Compose.
- Field Provenance: Sanitized architectural release extracted from a commercial ISP financial engine processing monthly recurring telecom ledgers since 2022.
- Key Capabilities: Autonomous cron-driven invoice lifecycles, automated subscriber walled-garden suspension & instant reactivation, multi-gateway webhook idempotency, and SNMP network telemetry.
- Architectural Showcase: Double-entry ledger schemas, webhook idempotency state machine, and RouterOS API multiplexer with sandbox mock drivers.
- Live Interactive Demo: ferihidayat95.github.io/pulsebill
- Repository: github.com/FeriHidayat95/pulsebill
Enterprise multimodal workflow automation orchestrating unstructured receipt OCR, autonomous commercial stock asset generation, and cloud metadata synchronization with intelligent LLM failover.
- Tech Stack: n8n, Google Gemini 1.5 Flash Vision, Groq (Llama-3.3-70B), Hugging Face (FLUX.1 Schnell), Telegram Bot API, Google Sheets API, Docker Compose, Node.js.
- Field Provenance: Sanitized architectural release extracted from active commercial retail order processing and generative marketing pipelines operating since early 2024.
- Key Capabilities: Zero-latency receipt OCR with JSON schema enforcement, multi-tier LLM circuit breaker (Groq failover for Gemini outages), automated tag/keyword generation for stock portfolios, and real-time ledger synchronization.
- Architectural Showcase: Production-ready exported n8n workflow schemas, automated offline pipeline test runner (
node scripts/simulate-pipeline.js), and interactive simulation sandbox. - Live Interactive Demo: ferihidayat95.github.io/n8nautomation
- Repository: github.com/FeriHidayat95/n8nautomation
Designed & Engineered by Feri Hidayat • Available for global remote full-time & contract engineering roles.