
Delta Solar
Marketing site for a solar installer: services, gallery, enquiries.
Senior Full-Stack & Blockchain Engineer.Founder of Up24 Solutions, shipping production Web3 and full-stack platforms.


Marketing site for a solar installer: services, gallery, enquiries.

Minting dApp on Base Sepolia, with wallet connect and live supply.

Staking dApp with a testnet faucet, live TVL and APY.

Company site for an IT services and hardware vendor.
50+
Private client projects
Delivered for private clients and covered by NDA, so they are not in the grid above. It spans the same stack: Web3, full-stack and mobile. I can walk through the architecture on a call.
Working on something similar? Let's talk specifics.
Get in touchAn interview — Q3 2026
— Hassan Javed, Sr. Full-Stack & Blockchain Engineer
The brief
Senior engineer based in Islamabad, working across React / Next.js, Node.js on AWS, audited Solidity, and AI agents. Founder of Up24 Solutions. Available for new engagements.

Q.01
I take product ideas and ship them as production software — usually React or Next.js on the front, Node.js on AWS at the back, and audited Solidity when the project needs on-chain rails. Lately a lot of AI agent work too.
Q.02
Founders who have a clear problem and need someone to own delivery. CTOs scaling past their first engineer. Web3 teams that need a contract + frontend + deploy pipeline from one person.
Q.03
Ship what was promised, on the timeline that was agreed. Honest milestone estimates with a 1.5× buffer. Reputation built on under-promise, over-deliver — not on hero work that wrecks the next sprint.
Q.04
Claude tool-use agents for ticket triage, a multi-tenant SaaS on Next.js 14, and a launchpad audit for a token going live in Q3. I write about each of these in the blog.
Freelance — first paid project
Joined Relymer · Full-Stack Engineer
Head of Development
CTO @ Axilaan
Sr. Full-Stack & Blockchain Engineer
Current8 domains · 34 technologies
Practical write-ups across Web3, React, Next.js, Node.js, MongoDB, and AI automation, distilled from real production work for clients.
Everything between a working simulator build and a live listing on both stores — EAS builds, OTA updates, signing, permissions, crash reporting, and the review rejections that cost me weeks.
How to build a mobile app that works on a train, in a basement, and on 2G — local-first writes, an outbox queue, conflict resolution, and the mistakes that quietly corrupt user data.
Token bucket vs sliding window, where to enforce limits, what to key on, and how to return limits clients can respect — with an atomic Redis implementation.
→ Got a project, audit, or hiring brief? Pick any channel below. I respond within 2 hours during work hours.