Rayyan Abdat

Fullstack Developer

I build full products end to end, from the interface layer to the data model. The work is cleaner when the same person designed the API and wrote the component that calls it.

View Projects Get In Touch

01

About

Independent developer who works across the full stack: UI, API, database, and deployment. I care about systems that are easy to reason about and products that behave exactly as described.

  • Build typed, modular frontends with Next.js and React that stay predictable as they grow.
  • Design backend services with NestJS and Prisma where the schema, API contract, and business logic stay in sync.
  • Write Solidity contracts with a security-first mindset: access control, audit trails, and verifiable on-chain state.
  • Own the full delivery cycle: architecture, implementation, testing, and production deployment.

02

Projects

Selected work spanning credential infrastructure, DeFi protocols, and developer tooling.

01

Certiva

Credential verification platform for institutions. Issues tamper-proof certificates with SHA-256 integrity checks, optional Polygon blockchain anchoring, and a 4-tier RBAC system for scoped administration.

StackNext.js, NestJS, PostgreSQL, Prisma, Redis, BullMQ, Solidity, Turborepo

Demo Repository

02

Altera

Unified DeFi execution platform covering token swaps, Uniswap V3 liquidity positions, staking, and an ERC-721 Genesis Pass NFT on Base. Deployed across Sepolia testnet and Base mainnet.

StackNext.js, TypeScript, Solidity, Uniswap V3, ethers.js, Hardhat

Demo Repository

03

Keyforge

Offline CLI tool for generating EVM and Solana key pairs using OS-level entropy. Exports to timestamped CSV. Zero network dependency, no telemetry, built for dApp development and integration test fixtures.

StackNode.js, ethers.js, @solana/web3.js

Docs Repository

03

Skills

Technologies I reach for when shipping real products, not a list but a working set.

Frontend

  • Next.js App Router, React Server Components
  • TypeScript, strict mode, typed API contracts
  • Tailwind CSS, responsive layout systems
  • Accessible, semantic HTML

Backend

  • NestJS services, modular architecture
  • Prisma ORM, PostgreSQL schema design
  • Redis caching, BullMQ job queues
  • JWT auth, RBAC, rate limiting

Web3

  • Solidity smart contracts, ERC-20, ERC-721
  • Uniswap V3 LP integration
  • Polygon, Base, Sepolia deployment
  • ethers.js, on-chain event indexing

04

Contact

For collaboration, freelance work, or full-time opportunities, email is the fastest path.

abdatrayyan7@proton.me
GitHub LinkedIn X Instagram