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lalitdotdev/README.md

πŸ‘‹ Hey, I'm Lalit Sharma

Full-Stack Engineer Β· AI Engineer Β· Builder of Production AI Systems

I design, build, and ship products end-to-end - from the database and API layer to delightful interfaces and reliable LLM-powered features.

Portfolio DevCastle LinkedIn X Email

Profile views GitHub followers GitHub stars


πŸš€ About Me

I'm a full-stack developer and AI engineer with an Electronics & Communications Engineering background and a bias toward shipping real products. I enjoy working across the entire stack: product thinking, system design, type-safe APIs, data modeling, cloud infrastructure, and AI orchestration.

My work focuses on making LLM features useful in production - retrieval quality, latency, rate limiting, graceful failure, observability, and clear user experiences matter as much as the prompt.

Currently open to opportunities in

AI Engineering Β· Full-Stack Development Β· RAG Systems Β· Multi-Agent Applications


πŸ† Featured Work

🏰 DevCastle β€” Developer Community & Market Intelligence Platform

A live developer community platform built and maintained as an independent product.

  • Community feeds, nested discussions, rich-text publishing, product launches, voting, bookmarks, and job discovery.
  • AI assistant with local embeddings (Xenova/Transformers), Upstash Vector retrieval, Groq inference, and custom multi-agent orchestration (Router β†’ Semantic Search β†’ Guardrail agents) β€” built without LangGraph for zero-dependency control.
  • Reddit market intelligence pipeline that extracts demand signals, competitor insights, monetization ideas, and go-to-market recommendations.
  • Production infrastructure spanning Next.js, TypeScript, Prisma, MySQL, Upstash Redis, Stripe, PostHog, and GitHub Actions.
  • Built with attention to caching, rate limiting, type safety, security, and resilient third-party integrations.

Visit DevCastle Explore Repository

✈️ Wayfarer β€” Multi-Agent Travel Planner

A collaborative travel-planning system that decomposes a complex request across specialized agents.

  • LangGraph state graph with parallel flight, hotel, and itinerary agents.
  • Shared agent state and PostgreSQL persistence for resumable planning sessions.
  • Streamlit interface for interactive planning and review.
  • Designed around separation of concerns, deterministic orchestration, and recoverable workflows.

View Wayfarer Built With

πŸ“ˆ Reddit Market Intelligence

An automated opportunity-discovery system for SaaS and developer products.

  • Collects and processes discussions from relevant Reddit communities.
  • Uses LLM extraction to identify pain points, demand strength, competitors, pricing, and launch strategy.
  • Combines caching, rate limiting, structured outputs, and human-readable reports.
  • Demonstrates an end-to-end pipeline from raw community data to actionable product insight.

🧠 What I Bring to an AI Engineering Team

Area What I build
RAG Systems Embedding pipelines, hybrid retrieval, vector search, reranking, context construction, and retrieval evaluation
Multi-Agent Systems Custom TypeScript orchestration (state graphs, router/specialist agents) and LangGraph (Python workflows), with shared state, tool use, and failure recovery
Production AI Streaming, timeouts, retries, rate limits, fallbacks, observability, cost controls, and safe output handling
Full-Stack Product Next.js applications, APIs, authentication, databases, payments, analytics, and responsive UI
Data Engineering Prisma schemas, relational modeling, caching layers, background jobs, and external API integrations
Reliability Type safety, testing, CI/CD, secret scanning, structured logging, and graceful degradation

πŸ› οΈ Technical Toolbox

Languages

TypeScript JavaScript Python SQL

Frontend & Product

Next.js React Tailwind CSS TanStack Query Zustand Streamlit

Backend & Data

Node.js Express FastAPI Prisma MySQL PostgreSQL Redis Stripe

AI, Agents & Retrieval

LangGraph LangChain Groq OpenAI Anthropic Google Gemini Upstash Vector Pinecone

Infrastructure & Delivery

AWS Docker Vercel GitHub Actions PostHog


πŸ“Š GitHub Profile

![Lalit's GitHub stats](`/api?username=lalitdotdev&show_icons=true&hide_border=true&count_private=true&include_all_commits=true&theme=transparent)

Top Langs

GitHub Streak

GitHub Trophies


🧭 How I Approach AI Product Work

flowchart LR
    A[User problem] --> B[Define success criteria]
    B --> C[Data & retrieval strategy]
    C --> D[Agent / model workflow]
    D --> E[Tools & APIs]
    E --> F[Guardrails & evaluation]
    F --> G[Streaming UX]
    G --> H[Observability & iteration]
    H --> B
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I start with the user outcome, not the model. Then I design the smallest reliable system that can reach it β€” with explicit failure modes, measurable quality, and a path to improve over time.


πŸŽ“ Certifications & Learning

  • AWS Certified β€” Cloud Technical Essentials, Coursera (98%)
  • Continuous learning across distributed systems, applied AI, product engineering, and cloud architecture

πŸ“« Let's Build Something Useful

I'm interested in conversations about:

  • AI engineering and applied LLM product development
  • RAG, evaluation, and multi-agent systems
  • Full-stack product engineering
  • Developer tools and community platforms
  • Turning ambiguous ideas into shipped, maintainable software

Portfolio LinkedIn X Email Me


πŸš€ From idea to production β€” with engineering judgment at every layer.

Made with code

Pinned Loading

  1. wayfarer-multiagent wayfarer-multiagent Public

    Wayfarer is an intelligent multi-agent travel planning system that uses LangGraph to coordinate specialized agents for flights, hotels, itineraries, and final travel plan synthesis. The system prov…

    Python 1

  2. transcribeX transcribeX Public

    Transcribe audio in minutes with OpenAI's WhisperV3 and Flash Attention v2 + Transformers without relying on third-party providers and APIs. Host it yourself or try it out.

    TypeScript 3

  3. omnidash omnidash Public

    Full Stack E-Commerce (can be customised to any specific use cases) + ADMIN Dashboard & CMS: Next.js 13 App Router, React, Tailwind, Prisma, MySQL

    TypeScript 38 11

  4. neurosense-fusion neurosense-fusion Public

    Multimodal Affect : Unified deep learning framework for emotion and sentiment recognition from video, audio, and text. Powered by BERT, ResNet3D, and CNNs. End-to-end training, robust evaluation β€”b…

    Python

  5. neurosense-frontend neurosense-frontend Public

    Multimodal Emotion and Sentiment Analysis Frontend : Unified deep learning framework for emotion and sentiment recognition from video, audio, and text. Powered by BERT, ResNet3D, and CNNs. End-to-e…

    TypeScript 1

  6. moodify moodify Public

    β€œLet your vibe decide the playlist.” Moodify uses the power of AI to generate personalized Spotify playlists based on your favorite songs or your current mood. Say goodbye to endless scrolling and …

    TypeScript