ACCEPTING PROJECTSOPEN

$ ls ./expertise

Technical expertise

04 / 06

Grouped by domain rather than scored, and each group names the roles and projects where it was used. Backend and infrastructure is the primary focus; the AI engineering band was added in 2026.

backend-and-infra/— primary focus

Where most of the five-plus years has gone: APIs and shared platform services in Node.js, over relational and document databases, on AWS.

01 Backend

NestJS at Techtiz, serverless Node.js at TechBucks, Node.js services on AWS at 10Pearls, Express on D[AI]LY.

  • Node.js
  • Express.js
  • NestJS
  • REST API design
  • Socket.IO
  • Serverless
  • Microservices

02 Data & State

MongoDB at Techtiz and on Taleharbor, PostgreSQL on Teamstart, MySQL at Asian Solutions.

  • PostgreSQL
  • MongoDB
  • MySQL
  • Redis (sessions, state, caching)
  • Schema design
  • Indexing

03 Cloud

Lambda, API Gateway and S3 at TechBucks and on D[AI]LY; AWS across the product at 10Pearls.

  • AWS Lambda
  • API Gateway
  • EventBridge
  • EC2
  • S3
  • CloudFront
  • CloudWatch

04 Multi-Tenancy

Per-client databases at Techtiz; semi-multi-tenant scheduling on Teamstart.

  • Per-tenant database isolation
  • Semi-multi-tenant architectures
  • Request-time DB injection per tenant

05 Event-Driven

S3 event notifications, scheduled triggers and off-request-path jobs at TechBucks.

  • AWS EventBridge
  • S3 event notifications
  • Socket.IO real-time channels
  • Async job distribution

06 Identity & Security

Enterprise SAML 2.0 single sign-on across 10+ identity providers at Asian Solutions.

  • SAML 2.0 SSO
  • Assertion validation
  • Certificate management
  • Attribute mapping
  • Auto-provisioning
  • API auth

ai-engineering/— python, since 2026

Added in 2026 and built as product features, with the same attention to cost, latency and failure modes as any other backend.

07 GenAI & LLM Engineering

LLM integration and fine-tuning at 10Pearls since January 2026; LLM-driven content generation on D[AI]LY.

  • LLM API integration (OpenAI, Anthropic, open models)
  • Prompt design & structured output
  • Streaming responses
  • Token, cost & latency budgeting
  • Output evaluation
  • Fine-tuning incl. QLoRA

08 RAG

RAG pipelines at 10Pearls since January 2026, and the 2026 AI Engineer Core Track.

  • RAG pipelines
  • Chunking strategies
  • Embeddings & vector search
  • Context assembly & grounding
  • Retrieval quality evaluation

09 Agentic AI

Agentic systems on MCP servers with human approval gates, since 2026.

  • Agent workflow design
  • Tool calling & orchestration
  • MCP connectors & custom servers
  • Spec-driven dev with approval gates
  • Human-in-the-loop pipelines

supporting/— languages, frontend, delivery

Everything else it takes to ship: the languages, the frontend work and the path to production.

10 Languages

TypeScript and JavaScript across every Node.js role; Python for GenAI work since 2026; SQL with PostgreSQL and MySQL.

  • TypeScript
  • JavaScript (ES6+)
  • Python (intermediate)
  • SQL

11 Frontend

React on D[AI]LY and Taleharbor, and full stack product work at 10Pearls.

  • React.js
  • Vue.js
  • HTML/CSS

12 DevOps

Docker and multi-environment CI/CD on Teamstart.

  • Docker
  • Linux
  • GitHub Actions
  • Multi-environment CI/CD