Available for freelance workBhubaneswar, IN--:-- IST
Chandrasekhar Samanta
Full-Stack Engineer. App & Web Developer. Gen AI / LLM Integrator. Freelance Consultant.
I build fast, reliable products end to end: hybrid mobile apps in Ionic and Angular, web platforms in React and Next.js, Node.js backends on AWS, and Gen AI features that put LLMs to practical use.
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About
Engineer, freelancer,
AI builder.
For the past four years I have worked as a Senior Software Engineer at a product engineering company, building hybrid mobile apps and web platforms that run in production. That work includes a payments-enabled PWA which raised user engagement by 40%, and rendering and state-management optimizations that improved app performance by 75%.
Alongside that role I run an active freelance practice, taking products from concept to production for startups in fintech, Web3 and B2B commerce. I own each engagement end to end, from design handoff through to deployment, across mobile, web and the infrastructure underneath.
A growing share of my work now involves Gen AI: building the application layer for decision intelligence and workflow orchestration platforms, wiring LLM agents and rule engines into real pipelines, and shipping AI features that are production-ready rather than proofs of concept.
Experience
Where I’ve made an impact.
-
Freelance Full-Stack & AI Developer
- Delivered complete products for startups across fintech, Web3 and B2B commerce, including a funding platform that connects investors with startups and serves over 200 live opportunities.
- Integrated LLM-powered features into client products, including assistants, content generation and retrieval-augmented search.
- Owned the full delivery lifecycle independently: architecture, UI, APIs, databases, CI/CD and cloud deployment.
- Built complex front-ends for educational institutions, and landing pages and dashboards for local businesses.
-
Senior Software Engineer
- Improved the performance of hybrid Ionic and Angular mobile apps by 75% through targeted rendering and state-management work.
- Built the application layer for enterprise decision intelligence and workflow orchestration platforms, including visual pipeline canvases, natural-language rule builders and model monitoring dashboards.
- Built a standalone PWA with secure payment integration and advanced filtering, raising engagement by 40% and reducing transaction errors by 25%.
- Reduced server load by 37% by introducing front-end caching strategies that eliminated redundant API calls.
- Set up CI/CD pipelines and containerized deployments with Docker and Kubernetes, including front-end build and release automation.
- Designed a B2B and B2C platform on the ONDC network, using gateway data polling for near real-time updates.
- Led and mentored a team of three to five developers through agile practices and structured code reviews.
-
ReactJS Developer
- Integrated blockchain functionality with Ethereum and Polyscan into high-performance web applications, and mentored interns on project code structure.
- Built and deployed React, Redux and Socket.IO applications across Firebase Cloud Functions, AWS and DigitalOcean, with CI/CD on GitLab and Jenkins.
-
Full Stack Developer Intern
- Built a real-time dashboard with PWA support, chat, and product monitoring through graphs and maps.
- Created APIs and database backups within a microservices architecture.
Projects
Selected work.
-
01
PrediqAI
An enterprise decision intelligence platform that unifies machine learning models, business rules and streaming pipelines on a single visual execution canvas, with natural-language rule design and built-in model monitoring. -
02
Unifyriver
A visual workflow orchestration platform for document-heavy operations, connecting OCR, LLM agents and business rules on a drag-and-drop canvas, with human-in-the-loop review of generated financial statements. -
03
RulzAI
A natural-language rules platform that turns plain-English business logic into executable rules, then schedules, runs and audits them against live datasets. -
04
Fhyve
A funding platform connecting investors with startups, offering over 200 live opportunities and native Google and Apple payments on Android and iOS. -
05
Brillsquare
A blockchain-powered ecosystem for co-living, co-working and wellness, with integrated membership rewards. -
06
Bizmarvel
A B2B platform for global business networking and product discovery. -
07
ONDC B2B Buyer App
A Progressive Web App built on the ONDC network, with Firebase SMS authentication, serving businesses of every size. -
08
Thoughtz
A Web3 application that captures and matches users’ thoughts in real time. -
09
Minto NFT Marketplace
A React UI kit for NFT marketplaces, designed to pair with a custom backend or with OpenSea. -
10
Bditto
A social platform that connects people through shared thoughts, powered by real-time socket feeds.
Skills
Tools of the trade.
Languages
- TypeScript
- JavaScript
- Java
- SQL
- HTML
- CSS
Frontend
- React
- React Native
- Next.js
- Gatsby
- Angular
- Ionic
- Redux
- RxJS
- React Flow
- Tailwind CSS
- Material UI
- Framer Motion
Backend & Databases
- Node.js
- Express
- MongoDB
- PostgreSQL
- SQLite
- Prisma
- TypeORM
- REST APIs
AI & LLM
- LLM Integration
- Prompt Engineering
- RAG Pipelines
- AI Agents
- AI-Powered Features
- LLM APIs
DevOps & Cloud
- AWS
- Docker
- Kubernetes
- GitLab CI/CD
- GitHub Actions
- Nginx
- PM2
Tools
- Git
- GitHub
- Postman
- Figma
- MongoDB Atlas
Contact
Let’s build
something great.
Open to freelance projects, product collaborations and senior engineering roles, particularly those involving applied AI.
Or email directly
contact@chandrasekhar.dev