
Jagadeesh B
Full-stack & blockchain engineer
I take on-chain products from contract to production: Soroban and Cairo contracts, Go and TypeScript services, and the interfaces people use.

- Stellar
- Starknet
- Solana
- Aptos
- Midnight
- Ethereum
- Hedera
- Flare
- XRPL
- Somnia
- Creditcoin
- Stacks
- X Layer
- Base
- Decentraland
About
Remote, from Tamil Nadu
I'm the founder and sole full-time developer of Grainlify, a platform that funds open-source issues and pays contributors when their work merges. Since August 2026 I've been a Stellar India Ambassador. I'm based in Kallakurichi, Tamil Nadu, India, and I work remotely. Most of what I build is payment and settlement infrastructure: the contracts, the services around them, and the interfaces people use.
- Kallakurichi, IN · IST (UTC+5:30)
- Remote
- Stellar India Ambassador
Featured
Projects I've shipped
Open any card for the full details and every link.






$ npm i @tollgatehq/sdk
More
More projects
Newest first.
saucerswap-limit-orders
Sep 2026Keeperless limit and stop-loss orders on SaucerSwap V2, run by the Hedera Schedule Service.
- Hedera
Built on Hedera
memokit
Sep 2026Sign one XRPL payment, and your Flare account runs the calls you committed to.
- Flare
- XRPL
Built for a Flare Foundation grant application
Grainlify Bounty Agent
Sep 2026Funds open-source work from creator fees and pays for its own inference over x402.
- Solana
- x402
Built for AnsemHack Clawrena
Metacenter
Sep 2026A risk feed for Stacks Bitcoin Staking (PoX-5): coverage, reserve, yield and stress tests.
- Stacks
- Clarity
Built for the Stacks Endowment Q3 2026 grant application
Retainer
Sep 2026Recurring USDC billing on Base spend permissions that never holds the money.
- Base
Built for the Base Batches 004 application
Tollbooth
Sep 2026A paywall layer for MCP servers. An agent calls a paid tool, a human pays, the agent retries.
- MCP
- Moove
Built for the Moove Developer Program
Arrears
Sep 2026A Creditcoin contract that treats a failed Ethereum transaction as evidence against a bonded operator.
- Creditcoin
- EVM
Built for BUIDL CTC 2026 Fall (Creditcoin)
Ballast
Sep 2026Parametric downside cover on dreamDEX, bought by the chain itself in the same block a window opens.
- Somnia
Built for the Somnia × dreamDEX Event Contracts Hackathon
Stellopay
2025 – 2026Decentralized payroll and escrow on Stellar and Starknet.
- Stellar
- Starknet
Contributor
Experience
Where I've worked
03/2026 — present
Freelance Full-Stack Developer
Stellar Ecosystem Projects · Remote
- Build and maintain production full-stack applications with React, Next.js, TypeScript, Node.js, Go and Python: interfaces, backend services, APIs and integrations.
- Design REST APIs, microservices, database schemas, background jobs and event-driven systems on PostgreSQL, Redis and message queues.
12/2025 — 02/2026
Full Stack Developer
Caddy Finance · Remote / Singapore
- Built responsive React and TypeScript interfaces, and backend APIs in Node.js and NestJS for financial applications.
- Integrated the frontend with blockchain services (Starknet, Solana) and backend systems.
01/2023 — 11/2025
Software Developer
Velocix · Chennai, Tamil Nadu
- Designed and built backend microservices in Rust and Node.js for large-scale video delivery and content distribution.
- Ran containerized deployments with Docker and Kubernetes on AWS and OpenStack, and worked on CI/CD automation and monitoring.
- Received Velocix's Rockstar Award for backend performance optimization and automation tooling.
Skills
What I work with
Chains6 families
- Stellar / Soroban
- Starknet / Cairo
- Aptos / Move
- Solana
- Midnight / Compact
- EVM
Languages
- Go
- Rust
- TypeScript
Frontend
- React
- Next.js
- Tailwind
Cloud / DevOps
- AWS
- GCP
- Terraform
- Ansible
- Vercel
- Railway
- Neon Postgres
AI
- LLM fine-tuning
- LoRA
- QLoRA
- Instruction tuning