Building production-grade backend systems, real-time platforms, and fintech infrastructure. 3 years of experience shipping systems that handle real-world complexity — payments, multi-tenancy, webhooks, async processing, and live data.

• 🔭 Currently building: n8n AI automation workflows
• 🌱 Learning: React Native (mobile development) · n8n AI automation workflows
• 🎯 Long-term: DevOps/Cloud engineering (Kubernetes, AWS) — KCNA certification planned
• 💼 Open to: Backend Engineer, Full-Stack, and Remote opportunities
• 📍 Location: Lagos, Nigeria 🇳🇬
• ⚡ Fun fact: Started as a Biochemistry graduate. Now I build fintech systems.

Production-grade full-stack multi-tenant SaaS platform (Jira-like) 🚀

• Multi-tenant architecture: organizations, workspaces, RBAC, real-time presence
• WebSocket rooms per workspace with TanStack Query cache invalidation on task events
• Resilient webhook delivery — HMAC-SHA256 + exponential backoff retry (1m → 5m → 30m → 2h → 8h)
• Celery background workers, Redis caching with workspace-scoped invalidation, GIN-indexed full-text search
• React 19 dashboard with analytics (team productivity, completion trends, time-to-completion)
• 35 Pytest tests across auth, task management, and webhook delivery suites

Tech: FastAPI Python PostgreSQL (async) SQLAlchemy Celery Redis WebSockets React 19 TanStack Query Docker

Fintech-grade payment platform for cross-border transactions 💳

• Full payment lifecycle: FX quote locking → balance debit → provider submission → webhook settlement
• Double-entry bookkeeping ledger with SELECT FOR UPDATE overdraft prevention
• Idempotency middleware + HMAC-SHA256 webhook verification + raw-body-first persistence
• React frontend: live FX preview, paginated transaction list, ledger entry timeline
• Containerized with Docker Compose, full Jest/Supertest test coverage

Tech: Node.js Express.js PostgreSQL React Vite Tailwind CSS Docker Jest

Production RAG application for CV-to-job fit analysis 🤖

• RAG pipeline: keyword retrieval over 25 career-advice snippets → prompt augmentation → Groq (Llama 3.3 70B) → structured JSON output
• Pydantic v2 schema enforcement with retry on LLM parse failure
• Async FastAPI backend, asyncpg + SQLAlchemy, Alembic migrations auto-applied on deploy
• React 18 frontend with animated SVG score ring, PDF upload, TypeScript, custom CSS (no component library)
• CV processed in-memory only — never persisted (data minimization)
• 🔗 Live App | API Docs

Tech: FastAPI Python Groq API Llama 3.3 70B RAG PostgreSQL React 18 TypeScript Pydantic v2 Vercel Render

Real-time messaging platform with 99.9% uptime 💬

• Socket.IO WebSocket backend with typing indicators, read receipts, and file sharing (10MB)
• JWT authentication, rate limiting (100 req/min), indexed MongoDB (sub-100ms retrieval)
• Compound index on (conversationId, timestamp) — 60% query latency reduction
• 🔗 Live Demo

Tech: Node.js Express.js Socket.IO MongoDB React 19 TypeScript

• ✅ Flowspace: Production full-stack SaaS — async PostgreSQL, Celery workers, Redis, exponential backoff webhooks, 35 tests
• ✅ PayRoute: Fintech-grade payment processor — double-entry bookkeeping, idempotency, HMAC verification, zero double-crediting
• ✅ JobSense: Production RAG application — Groq API (Llama 3.3 70B), keyword retrieval, structured LLM output extraction, async PostgreSQL, deployed live with Swagger API docs
• ✅ 80% of backend architecture for enterprise property management system — sub-200ms response times
• ✅ 40% performance improvement through strategic PostgreSQL indexing and query optimization
• ✅ 95%+ test coverage with Pytest and Jest across production backends
• ✅ 1,500+ lines of production React Native code (22+ components) shipped at Smash Technology

const anthony = {
  currentlyBuilding: [
  "React Native fintech mobile app",
  "n8n AI automation workflows"
],
  currentlyLearning: [
    "React Native advanced patterns",
    "n8n AI automation workflows",
    "Kubernetes (KCNA certification — 2027)"
  ],
  strongestSkills: [
    "Backend systems (Node.js, Python/FastAPI)",
    "Fintech & payment systems",
    "Real-time architecture (WebSockets)",
    "Async processing (Celery, Redis)",
    "Webhook design & reliability"
  ],
  openToWork: true,
  lookingFor: "Backend Engineer · Full-Stack · Remote opportunities",
  location: "Lagos, Nigeria 🇳🇬"
};

I'm open to backend engineering roles, full-stack opportunities, and remote contracts.

• 📧 Email: nebenmor.anthony@gmail.com
• 🌐 Portfolio: devanthon.vercel.app
• 💼 LinkedIn: linkedin.com/in/anthony-nebenmor
• 🐦 Twitter/X: @AnthonyNebenmor