Winner
100xDevs Bootcamp 1.0
100xDevs × Superteam Web3 Contest
Won the Web3 contest run with the 100xDevs Bootcamp 1.0.
- Web3
- Solana
Also recognized
Superteam Agentic Engineering Grant
Awarded a grant through Superteam Earn.
Open to full-time and contract roles
Full stack engineer with mobile and Solana in the same toolbox.
Full stack engineer. Node and Bun services with payments, wallets and real-time tracking, React Native and Expo on the front, and Rust and Anchor when the logic belongs on Solana.
Founding backend engineer on Tazoo for SKC Studios, architecting services, payments, and data pipelines end to end ahead of launch, with its iOS build in App Store review.
Before that, React Native at Memolane. Turbin3 graduate, and top 40 of 1,135 in the Solana India Fellowship.
Quick Reel30s watch
A quick walkthrough of projects, production systems, and live builds.
Watch 30s Reel
Selected work.
Five recognitions, three featured projects, and the repos behind them on GitHub.
GRADUATEQ3 2026
Turbin3 Builders Cohort
Graduated from Turbin3's Solana program, with a verifiable certificate.
- Solana
- Rust
- Anchor
Verify certificate bJfF…8lN
Solana India Fellowship
Top 40 of 1,135.
Selected into the top 40 of 1,135 participants, mentored by Harkirat Singh.
- Fellowship rank
- Top 40
- Applicants
- 1,135
- Track
- Solana
- Mentor
- Harkirat Singh
Case studies
Case study · Backend
Tazoo: the backend behind a quick-commerce app
End-to-end backend owner
Owned backend engineering end to end on Tazoo: APIs, real-time tracking, payments, and cloud CI/CD. Built for SKC Studios, I designed the architecture: multi-user roles, the order lifecycle, live inventory and real-time order tracking.
Payments run on Razorpay with an in-app wallet. SMS and call masking and real-time notifications keep everyone connected. I profiled and optimized bottleneck queries, cutting response times from 6–10 seconds to under 1 second, alongside caching layers and cron jobs on AWS.
Tazoo is on the Play Store ahead of its full launch, and the iOS build is in App Store review.
- Bun
- Node.js
- Razorpay
- AWS
- CI/CD
- Optimization
- 6–10s down to <1s
- Payments
- Razorpay + wallet
- Android
- On Play Store, pre-launch
- iOS
- In App Store review
Case study · Solana
Programmable Revenue Agreements
Turbin3 capstone · Devnet
A Solana protocol that tokenizes a share of future revenue into Token-2022 entitlement tokens. Buyers pay in USDC, and waterfall tiers split revenue between token holders, the creator and named wallets.
A per-token accumulator makes claims independent of timing, and a transfer hook settles accrued revenue on every transfer. Agreements can be frozen for compliance and expire by time or by cap. Built in Rust and Anchor with TypeScript tooling as my Turbin3 capstone.
Deployed on Solana Devnet (`2iEFwZ8qPjvEfSAtHqE7G7apQo9tVKFsiLrdAFC5sXop`) with test coverage across Anchor TypeScript integration suites and Rust in-program tests (`cargo test-sbf`).
- Rust
- Anchor
- TypeScript
- Token-2022
- Token
- Token-2022 entitlement
- Purchases
- USDC
- Payouts
- Tiered waterfall
- Settlement
- Transfer hook
Case study · Mobile
Founder Mode: effort over outcome
Android app available
A React Native journaling app that turns a founder’s daily grind into an RPG. You write your day in free text, Gemini reads it and awards XP, health and level. Cron jobs drive daily engagement loops and background tasks, data lives in Supabase (PostgreSQL), and a custom UI adds haptic feedback.
- React Native
- Expo
- Supabase
- Gemini
- AI
- Gemini log parsing
- Backend
- Supabase
- Loop
- Daily cron
Earlier work, where I learned
Battle Of Minds. Online and local chess in React Native with Firebase.
Playtube. A structured Node, Express and MongoDB backend built while learning backend fundamentals.
ChaiFlow. Real-time B2B tea-delivery manager with Admin, Client and Logistics roles, built with React Native and Firebase.
PrepPoint. Question-sharing app for students, built with React Native and Firebase.
Three teams.
June 2026 – Present
SKC Studios
Backend Developer (Contract)
- Owned backend engineering end to end on Tazoo: APIs, real-time tracking, payments, and cloud CI/CD.
- Built multi-user roles, order lifecycle, live inventory and real-time order tracking.
- Added Razorpay payments, a wallet, SMS and call masking, notifications, caching, cron jobs and AWS-based CI/CD.
March 2026 – June 2026
Memolane
Mobile Engineer Intern
- Shipped React Native features across UI, APIs and third-party integrations in a fast-paced startup environment.
- Coordinated closely with the backend team to align contract schemas and streamline endpoint integration.
- Leveraged modern AI development tools to accelerate implementation cycles and boost PR delivery cadence.
December 2023 – March 2024
Ramora Technologies
Android Developer Intern
- Engineered the complete architecture, data models, and system design entirely by hand in Kotlin and Jetpack Compose prior to the AI-assisted era.
- Built a comprehensive school ERP and parental portal for real-time attendance tracking, exam results, holiday calendars, and event updates.
- Implemented fee management features enabling parents to review pending dues, transaction histories, and digital receipts.
RK University
Education
B.Tech, Computer Engineering · RK University · 2024 – present
Diploma, Computer Engineering · RK University · 2021 – 2024 · Gold Medalist
Stack
Infrastructure
Where Tazoo runs and ships
- AWS
- CI/CD
- GitHub Actions
- Docker
- Nginx
Mobile
React Native from UI to APIs
- React Native
- Expo
- Android
Frontend
State and styling
- React
- TypeScript
- JavaScript
- Redux Toolkit
- Zustand
- Tailwind CSS
Backend
Services, jobs and payments
- Node.js
- Bun
- Express
- Prisma
- REST
- Webhooks
- Cron jobs
- Caching
- Razorpay
- Socket.io
- Redis
- BullMQ
- WebSockets
- FFmpeg
Data
Where it lives
- PostgreSQL
- MongoDB
- Supabase
- Firebase
Smart contracts
Programs on Solana
- Rust
- Anchor
- Solana Web3.js
- Token-2022
- PDAs
- SPL Token
Quick answers
Quick answers
What do you do?
I am a full stack engineer who builds backend systems on Node.js and Bun, React Native apps and Solana programs in Rust and Anchor. I owned backend engineering end to end on Tazoo: APIs, real-time tracking, payments, and cloud CI/CD.
Where have you worked?
SKC Studios (Backend Developer, contract, since June 2026), Memolane (Mobile Engineer Intern, March to June 2026) and Ramora Technologies (Android Developer Intern, December 2023 to March 2024).
What Solana credentials do you have?
I graduated from the Turbin3 Builders Cohort Q3 2026 (certificate is publicly verifiable), placed in the top 40 of 1,135 in the Solana India Fellowship, and won the 100xDevs × Superteam Web3 Contest. My Turbin3 capstone, Programmable Revenue Agreements, is open source and deployed to Solana Devnet with test coverage in TypeScript and Rust.
Are you available, and how do I contact you?
I am open to full-time and contract roles. Reach me on Telegram or at harmishtervadiya@gmail.com.