Senior AI Engineer | RAG & LLM Systems | Full Stack | Cloud-Native

RAG & LLM Engineering
Design and delivery of production-grade Retrieval-Augmented Generation pipelines, including permission-aware retrieval, LLM-as-judge evaluation, prompt-injection defense, agent architectures, and streaming completions using GPT-4o, Claude, Gemini, LangChain, LlamaIndex, and AWS Bedrock AgentCore.

Cloud-Native Architecture (AWS & Azure)
Architecture and implementation of serverless, cloud-native systems on AWS (Lambda, DynamoDB, S3, CDK, API Gateway, Cognito, SNS/SQS, EventBridge, CloudWatch) and Microsoft Azure (Azure OpenAI, Azure App Service, Azure Bot Service, Entra ID, Teams SSO, SharePoint Online), including CI/CD pipelines and infrastructure reliability.

Full Stack Development
End-to-end development of web applications using TypeScript, Node.js, React 18, Next.js, FastAPI, Firebase Cloud Functions v2, PostgreSQL, DynamoDB, and Firestore, covering frontend, backend, REST APIs, GraphQL, microservices, and real-time features.

Microsoft 365 & Teams Integration
Integration with Microsoft 365 Agents SDK, Microsoft Graph Search API, Copilot Retrieval API, Teams bot applications, OAuth 2.0 on-behalf-of flow, SharePoint content approval, Adaptive Cards, and Teams app manifests.

Security Engineering
Identification and remediation of cross-tenant data exposure, unauthenticated webhooks, conversation leaks, and contact uniqueness flaws; implementation of provider signature verification, JWT scoping, and permission-boundary test programmes.

AI Agent & Multi-Persona Systems
Construction of multi-persona AI assistants with role-based access, function-calling tools, hierarchical escalation chains, runtime configuration registries, and LLM classifier-based safety layers deployed in production environments.

Blockchain & Web3 Development
Development of Solidity smart contracts (ERC-4337), DeFi liquidity pool platforms on Ethereum, dApps with React frontends, and on-chain arbitrage price comparison tools hooking directly into DEX smart contracts.

Database Engineering
Design and operation of relational and NoSQL databases including PostgreSQL, MySQL, MongoDB, Firestore, DynamoDB, Azure Table Storage, Supabase pgvector, Pinecone, and Weaviate, with expertise in indexing, caching, and vector embeddings.

DevOps & CI/CD
Setup and repair of CI/CD pipelines, monorepo scaffolding with pnpm, lint and test tooling, EventBridge failure alerting, CodeBuild configuration, and integration test automation to ensure stable production deployments.

Third-Party Integrations
Integration of OAuth 2.0, Microsoft Graph, Google Calendar API, CalDAV, Twilio, FCM, Stripe, Brevo, Apify, Google Maps API, ElevenLabs, WhatsApp, Messenger, and Instagram APIs into production systems.