Web3 engineer focused on shipping and getting better at system design

leetcode

github

Abhinav Chauhan  • Peerlist

ShuttrSpace – Web3 Photography Platform
Built and launched an MVP of a Solana-based photography platform, designed to give creators portfolio-grade profiles, seamless IPFS storage, and wallet-gated interactions while keeping browsing completely frictionless.

Key contributions:

- Implemented wallet-based authentication on Solana with message signing and automatic profile provisioning.

- Designed portfolio-grade profiles featuring editable bios, galleries, social links, and verified author badges.

- Developed an upload flow with thumbnail generation, metadata signing, and IPFS storage (originals + optimized previews).

- Built modals for editing settings, uploading photos with camera/lens details, and organizing tags/collections.

- Created an inspiration feed with infinite scroll.

The project was built with a focus on UX, reliability, and creator empowerment, proving that professional portfolios and decentralized storage can coexist in a seamless Web3 experience.

ShuttrSpace

sBTC Payment Gateway (Stacks Builders Challenge 2025)
Built and launched an MVP of a Bitcoin payment gateway on Stacks, designed to make accepting Bitcoin via sBTC as seamless as using modern platforms like Stripe.

Key contributions:

Implemented a state machine–driven charge lifecycle (PENDING → CONFIRMED → PAYOUT_INITIATED → PAYOUT_CONFIRMED → COMPLETED) with atomic transitions and safeguards against double execution.

Added HMAC-signed webhooks with idempotency and replay-attack protection for reliable event delivery.

Developed a merchant dashboard for creating charges, generating payment links, and monitoring real-time status.

Integrated directly with the sBTC testnet, processing real transactions instead of mocks.

Extended core flows with refunds, stuck-charge recovery, and SSE-based real-time updates.

The project was built with a focus on developer experience, reliability, and UX, proving that Bitcoin payments can be handled with the same simplicity and trust as traditional payment infrastructure.