India (Remote) · Available for freelance & full-time
Abhay J
Sharma — Software Engineer, freelance PostgreSQL & full-stack developer
Freelance Software Developer · Full-Stack & Backend Engineer for Hire
Case studies
VCNITI Procurement Platform
Multi-vendor logistics platform: supplier tracking boards, automated split settlements, and a normalized procurement schema replacing a legacy Shopify setup.
500+ live products synced across vendor and admin dashboards.
- Next.js
- NestJS
- PostgreSQL
- Razorpay
AI Automated Customer Support
Conversational support portal with streaming (SSE) responses, built on a RAG pipeline grounded in product documentation.
Cut standard manual support requests by 40%.
- LLM
- RAG
- SSE
- Node.js
MoodShift AI — Emotion-Aware Music Recommendation
AI app that detects facial emotion in real time and recommends music to match or gradually improve mood, building personalized mood-transition playlists with local, privacy-focused audio analysis.
Facial emotion recognition driving mood-transition playlists.
- Next.js
- Flask
- MediaPipe
- ChromaDB
AI Medical Chatbot — Symptom Analysis Assistant
Conversational healthcare assistant that takes natural-language symptom descriptions and returns preliminary, context-aware health information alongside secure authentication and conversation history.
Bronze Award — FLIPR Labs AI National Hackathon (Chat Support).
- React.js
- FastAPI
- PostgreSQL
- LLM
Global Real-Time Air Quality Dashboard
Map-based dashboard rendering live global air-quality readings via Leaflet, with per-station drill-down.
Live, map-first view of global AQI data.
- React
- Leaflet
- REST APIs
Hisab — Carpenter Billing App
Offline-first mobile billing app built for non-technical carpenters to generate invoices on-site without signal.
Reduced invoice generation time by 50%.
- React Native
- Offline-first
Live links and full write-ups being added per project — placeholders marked for now.
I turn tangled legacy systems into backends that hold up under real traffic — and I ship the product around them, not just the API.
Based in India, working remote with teams and clients globally. My core strength is PostgreSQL schema design and data migration, paired with practical full-stack delivery: Next.js and NestJS on top, n8n and LLM/RAG automations where they genuinely save time.
0+
Products synced, legacy Shopify → PostgreSQL
0%
Manual support volume cut via AI chat
0%
Faster invoicing, offline-first billing app
0+
Years shipping production backends
Stack
Languages
Databases & Data
Backend & APIs
Automation & AI
Cloud & Deployment
Frontend
VCNITI Technologies
Full Stack SDE I
May 2026 – September 2026
- Migrated legacy Shopify workflows into a normalized PostgreSQL/NestJS backend; synchronized 500+ live products and associated state models.
- Built customer, supplier, and admin dashboards and multi-vendor workflows using Next.js, NestJS, and PostgreSQL.
- Deployed backend services on AWS Lightsail with Neon serverless PostgreSQL and Upstash Redis caching.
- Implemented technical SEO updates, structured data, and sitemaps; monitored indexing health using Google Search Console.
Self-Employed
Freelance Full Stack Developer
2025 – Present
- Built ERP/HMS solutions and business analytics dashboards; developing a mobile-first operations management system for project tracking, measurements, labour coordination, and quotations.
- Built LLM-based RAG solutions, n8n workflows, and WhatsApp communication automation, with full-stack applications, cloud storage, and deployment.
Skylights Energy
Frontend Developer
March 2024 – June 2024Bengaluru
- Built responsive internal business components using React.js and Tailwind CSS within Agile sprints.
- Integrated front-end modules with Firebase and backend REST APIs; resolved client-rendering issues.
Education
- Completed, 2026
MCA
Dayananda Sagar University
- July 2024
BCA
RJS FG College
Verified credentials
What I can build for you
Backend & Database Architecture
Hire a freelance backend developer for PostgreSQL schema design, legacy-system migration, and REST API builds on Node.js/NestJS.
- Schema design & migrations
- Data sync & integrity
- REST API integration
In-House Software & Full-Stack Web Apps
Build in-house software instead of stitching together third-party tools — end-to-end products on Next.js, NestJS, and PostgreSQL: dashboards, ERPs, multi-vendor platforms.
- Customer/admin dashboards
- Auth & role-based access
- Cloud deployment
AI Developer for Hire — LLM & Automation
Hire an AI developer for LLM-based RAG applications, n8n workflow automation, and WhatsApp communication bots.
- RAG support bots
- n8n automations
- WhatsApp integrations
Technical SEO & Performance
Structured data, sitemaps, and indexing health for product-driven sites.
- Schema markup
- Search Console monitoring
- Performance audits
- VCNITI Technologies
- Skylights Energy
- Freelance Clients
Common questions
Yes. I'm a freelance software engineer based in India working remote with clients and teams worldwide, available for project-based work and full-time roles.
Yes. I build custom in-house software on Next.js, NestJS, and PostgreSQL — internal dashboards, ERPs, multi-vendor platforms, and admin tools tailored to how your team actually works.
All three. My core strength is backend and PostgreSQL database architecture, I ship full-stack products end to end on Next.js/NestJS, and I build LLM/RAG and automation features when a project calls for AI.
Yes. I've worked directly with startups, individual business owners, and agencies — from freelance clients to a full-time engineering role migrating a production Shopify platform to PostgreSQL.
Let's build something that holds up.
Open to freelance projects and full-time roles. Tell me what you're building and I'll get back within a day.
Download Resume