Services I've Handled — Full-Stack Engineering, Architecture & Product Strategy
A comprehensive list of professional services I've delivered across multiple industries: IoT fleet management, fintech core banking integration, cyber insurance platforms, education technology, and enterprise digital transformation. Each service backed by real production systems still running today.
Faisal Affan
- Services I've Handled
- IoT & Fleet Management
- Fintech & Core Banking
- Cyber Insurance
- Education Technology
- Technology Radar
- How I Work
- Discovery First. I don't start coding until I understand the problem, the constraints, and the
- End-to-End Ownership. I don't just write code — I own the full lifecycle: design → build →
- ROI-Driven Engineering. Every technical decision ties back to business impact. I evaluate
- AI-Augmented, Not AI-Replaced. I leverage AI (Claude Code, MCP orchestration) to 3x my output
- All Services — Complete List
Services I've Handled
"Talk is cheap. Show me the production systems." — Every Senior Engineer Ever
This is not a list of things I've "dabbled in." These are production systems I've architected, built, deployed, and maintained — many of them solo, most of them still running today.
IoT & Fleet Management
Real-Time Fleet Telemetry
Scale: 50,000 events/second, sub-2-second geofence alerts. Stack: Go, MQTT, Kafka, Time-Series DB, React dashboards. Impact: Truck utilization 65% → 79%, fuel theft detected in month one, $200K annual savings. Read full case study →
Digital Mining Platform
Scope: End-to-end mining operations — fleet dispatch, fuel management, HSE digital, command center. Stack: Go microservices, React PWA, MQTT for edge-to-cloud sync. Impact: Multi-site rollout (3 provinces), real-time visibility from field to HQ. Read full case study →
Fintech & Core Banking
Mobile Banking App — 680K+ Downloads
Scale: Zero downtime during Eid rush (peak transaction volume). Stack: Go backend, Flutter mobile, ISO 8583 bridge to core banking. Impact: 680K+ Google Play downloads, seamless integration with legacy mainframe. Read full case study →
Field Operations Platform — 4.1M Customers
Scale: Built solo in 30 days, now serving 4.1 million end-users. Stack: Go monolith, Flutter mobile, offline-first sync engine. Impact: Eliminated 23% data loss, real-time IIR simulation for financing decisions. Read full case study →
Cyber Insurance
Insurance Platform — Australia's Largest Insurer
Scope: Full-stack cyber risk assessment → quoting → underwriting platform. Stack: Nuxt.js SSR, .NET microservices, Azure Cloud, UpGuard integration. Impact: Digitized the entire cyber insurance lifecycle for IAG (ASX-listed, Australia's largest insurer). Read full case study →
Education Technology
LMS — Single Codebase, Multiple Campuses
Scope: Technical assessment for unified Learning Management System across 100+ Indonesian universities. Stack: Architecture strategy — multi-tenant, white-label, single codebase. Impact: Designed approach to serve diverse institutions from one deployable artifact. Read full case study →
Technology Radar
My Stack
Primary: Go, Next.js, TypeScript, Flutter, PostgreSQL Messaging: MQTT, Kafka, RabbitMQ, NATS Infra: Docker, Kubernetes, Azure, GCP, CI/CD (GitHub Actions) Observability: Grafana LGTM, Prometheus, OpenTelemetry AI/LLM: Claude API, AI SDK, LangFuse, MCP orchestration
How I Work
Discovery First. I don't start coding until I understand the problem, the constraints, and the
business context. Every engagement begins with architecture RFC before any implementation.
End-to-End Ownership. I don't just write code — I own the full lifecycle: design → build →
deploy → monitor → iterate. You build it, you run it.
ROI-Driven Engineering. Every technical decision ties back to business impact. I evaluate
features by switching costs, regulatory moats, and operational margin — not by hype.
AI-Augmented, Not AI-Replaced. I leverage AI (Claude Code, MCP orchestration) to 3x my output
while maintaining architectural standards that AI alone cannot guarantee.
Interested in working together? Find me on LinkedIn or GitHub.
All Services — Complete List
| # | Service | Industry | Stack | Users/Scale | Case Study |
|---|---|---|---|---|---|
| 1 | Field Operations Platform | Fintech | Go, Flutter, Offline-First | 4.1M customers | Tepati → |
| 2 | Dynamic Form Engine | Tooling | Go, TypeScript | 50+ field types | Tepati → |
| 3 | Offline-First Sync Engine | Infrastructure | Go, SQLite, MQTT | Zero data loss | Tepati → |
| 4 | IIR Simulation Engine | Fintech | Go, Financial Models | Real-time financing | Tepati → |
| 5 | Multi-Level Approval Pipeline | Workflow | Go, RBAC | 4 hierarchy levels | Tepati → |
| 6 | Mobile Banking App | Fintech | Go, Flutter, ISO 8583 | 680K+ downloads | SiTepat → |
| 7 | ISO 8583 Core Banking Bridge | Integration | Go, TCP/IP | Production banking | SiTepat → |
| 8 | Smart Payment Reminder Engine | Fintech | Go, Cron, Firebase | 680K+ users | SiTepat → |
| 9 | Digital Mining Platform | Mining Operations | Go, React PWA, MQTT | 3 sites, 3 provinces | HPU Mining → |
| 10 | Fuel Management & Anomaly Detection | Mining IoT | Go, Time-Series DB | $200K saved/year | HPU Mining → |
| 11 | HSE Digital Management | Safety | React PWA, Go API | 3 mining sites | HPU Mining → |
| 12 | Edge-to-Cloud Sync Pipeline | Infrastructure | MQTT, Kafka, Go | Intermittent connectivity | HPU Mining → |
| 13 | Command Center Dashboard | Analytics | React, WebSocket | Multi-site real-time | HPU Mining → |
| 14 | Cyber Insurance Platform | Insurtech | Nuxt.js, .NET, Azure | Australia's largest insurer | IAG Cybera360 → |
| 15 | Cyber Risk Scoring Engine | Insurtech | .NET, Azure | Integrated with UpGuard | IAG Cybera360 → |
| 16 | LMS Multi-Tenant Architecture | EdTech | Architecture Strategy | 100+ universities | SEVIMA → |
| 17 | Class Scheduling Algorithm | EdTech | Python, OR-Tools | NP-hard optimization | SEVIMA → |
| 18 | CV-to-Job Ranking Engine | EdTech | Python, NLP | University career centers | SEVIMA → |
| 19 | Real-Time Fleet Telemetry | Mining IoT | Go, MQTT, Kafka, React | 50K events/sec | Petrosea Minerva → |
| 20 | Real-Time Geofencing Engine | IoT Alerting | Go, Kafka | Sub-2-second alerts | Petrosea Minerva → |