Skills

Technical Arsenal

Backend · AI/LLM · Automation · Cloud · Mobile

01 / 0811 skills

Core Backend

  • Node.js
  • NestJS
  • Express.js
  • TypeScript
  • GraphQL
  • REST APIs
  • gRPC
  • Python
  • Microservices
  • WebSockets
  • WebRTC
02 / 0810 skills

Data & Messaging

  • MongoDB
  • PostgreSQL
  • MySQL
  • Redis
  • Prisma
  • Mongoose
  • Apache Kafka
  • RabbitMQ
  • Elasticsearch
  • BullMQ
03 / 0810 skills

AI, LLMs & RAG

  • OpenAI
  • Anthropic Claude
  • Google Gemini
  • LangChain
  • RAG Pipelines
  • Pinecone / pgvector
  • Whisper STT
  • ElevenLabs TTS
  • Ollama
  • LM Studio
04 / 089 skills

Workflow & Business Automation

  • n8n
  • Zapier
  • React Flow
  • BullMQ
  • Agenda.js
  • Webhook Orchestration
  • Drip Campaigns
  • Event-Driven Triggers
  • Multi-Channel Campaigns
05 / 0810 skills

Frontend & Mobile

  • React.js
  • Next.js
  • React Native
  • Expo
  • React Flow
  • Redux
  • React Hooks
  • Tailwind CSS
  • Material-UI
  • Ant Design
06 / 0810 skills

Cloud & DevOps

  • AWS
  • GCP
  • Azure
  • Docker
  • Kubernetes
  • Terraform
  • Nginx
  • Cloudflare
  • GitHub Actions
  • GitLab CI
07 / 087 skills

Observability & CI/CD

  • Prometheus
  • Grafana
  • ELK Stack
  • Jenkins
  • Blue-Green Deploys
  • Canary Releases
  • APM & Flame Graphs
08 / 089 skills

Payments, Auth & Security

  • Stripe
  • PayPal
  • Paddle
  • NMI
  • Valor
  • OAuth 2.0
  • JWT
  • Firebase Auth
  • CASL / RBAC
Proficiency

Expertise Depth

Where my time and depth actually concentrate — grouped by how I use each, not arbitrary scores.

Core stack

Daily driver — deep, ship-ready

  • Backend Development
    Node.jsNestJSExpress
  • System Architecture
    DDDMicroservicesCQRS
  • API Design & Integration
    RESTGraphQL40+ APIs
  • AI / LLM Integration
    OpenAIClaudeRAG
Production-ready

Used regularly, scoped well

  • Cloud & DevOps
    GCPAWSK8sDocker
  • Workflow Automation
    n8nZapierBullMQ
  • Frontend (React)
    ReactNext.jsRedux
Working knowledge

Hands-on, integrate as needed

  • Mobile (React Native)
    React NativeExpo
Deep Dive

Engineering Expertise

The systems-level capabilities behind durable, scalable products.

System Architecture

  • Microservices with domain boundaries & DDD
  • Event-driven systems with Kafka & RabbitMQ
  • CQRS, Saga and Outbox patterns
  • API Gateway, BFF and service-mesh patterns
  • Modular monolith → microservice migration

Reliability & Security

  • JWT / OAuth2 / RBAC / API-key auth
  • CASL-based attribute-level permissions
  • Rate limiting, throttling & circuit breakers
  • Graceful degradation & fault isolation
  • Dependency auditing & SAST pipelines

Real-Time & Event Systems

  • WebSocket architecture with Socket.io at scale
  • WebRTC signaling & peer-to-peer streaming
  • Event sourcing & message-queue design
  • Pub/Sub with Redis for lightweight eventing

Performance Engineering

  • Sub-50ms API response optimization
  • MongoDB aggregation tuning & indexing
  • Multi-layer caching (Redis + CDN + in-memory)
  • Read replicas & query planning
  • insertMany batching & parallel async patterns

Cloud & DevOps

  • Docker + Kubernetes + Helm deployments
  • GitOps with GitHub Actions / GitLab CI
  • Blue-green & canary release strategies
  • Observability: Prometheus, Grafana, ELK
  • GCP: Cloud Run, Compute, Storage

AI & LLM Integration

  • Prompt engineering: Claude, GPT-4, Gemini
  • Local LLM inference: LM Studio + Ollama
  • RAG pipelines with Pinecone / pgvector
  • ElevenLabs TTS + Whisper STT in production
  • Chatbot training, knowledge base & agent flows

Workflow & Marketing Automation

  • n8n & Zapier multi-step automation design
  • Webhook-driven orchestration with retries
  • BullMQ / Agenda.js scheduled job pipelines
  • Email drip, nurture & re-engagement flows
  • Multi-channel campaigns (Meta + Google)

Third-Party API Orchestration

  • OAuth 2.0 flows across 15+ platforms
  • Webhook ingestion, verification & idempotency
  • Rate-limit-aware clients with backoff
  • Multi-platform data sync & conflict resolution