Distributed systems & blockchain architect · Ahmedabad, India

Buildingwhat'sNext.

Seven years building blockchain infrastructure, custody systems, and AI-augmented engineering workflows for teams shipping under real delivery pressure. Writing weekly about architecture, execution, and what holds up in production.

pinned to the wall, slightly crooked

  • 7+

    years building

  • 50+

    engineers led

  • 15+

    production platforms

The Architect's Brief

Free · weekly · no spam

Book a call →About Neel →

Stack in production: Hyperledger Fabric, OP Stack / L2, Solidity, ERC-4337, Fireblocks NCW, BitGo, Node.js, NestJS, Go, Python, Claude API, Ethereum, Polygon, Solana, Base, Arbitrum, Account Abstraction, Docker, AWS EKS, HSM.

receipts, not adjectives

Selected work ✦

DocTrace — File-less Records on Hyperledger Fabric

SoluLab · Tech Lead | Senior Blockchain Developer

Record-issuing platform for an Austin records company. Certificates, licences and permits live as structured data on a permissioned Fabric network, so anyone can verify one without calling the issuer.

Year
2023
Chains
Hyperledger Fabric
Stack
Hyperledger Fabric · Go (Chaincode) · Fabric CA
  • ✓ DocTrace became an authorised Texas DIR vendor and won a CIO Review award
  • ✓ Anyone can verify a record without an account and without contacting the issuer
  • ✓ Corrections keep the full amendment history while the app always shows one current version

  • Sep 2024

    Project Atlas — Multi-Chain Non-Custodial Wallet

    Tech Alchemy · Blockchain | Technical Architect

    Bitcoin, Ethereum, EVM chains

    Production non-custodial wallet platform supporting Bitcoin (BDK/UTXO), Ethereum, and EVM chains. Flutter frontend, Django backend, encrypted WebSocket sync, and CloudFront-backed delivery.

    what shipped

    • Multi-chain wallet supporting BTC, ETH, and major EVM networks
    • Bitcoin UTXO selection optimised for fee efficiency
    • Noise protocol WebSocket operational with <50ms latency on good connections
    • Flutter (Dart)
    • Django
    • Python
    • Bitcoin Dev Kit (BDK)
    • Noise Protocol
    • WebSocket
    • AWS CloudFront
    • MongoDB

  • Aug 2024

    Project Ember — OP Stack L2 + Bridge

    Tech Alchemy · Blockchain | Technical Architect

    OP Stack (Ethereum L2)

    Production Layer 2 chain built on OP Stack for a high-volume token ecosystem. Includes L1/L2 bridge, backend oracle, and staking contracts for a live launch environment.

    • OP Stack
    • Solidity
    • Node.js
    • Smart Contracts
    • L1/L2 Bridge
    • Oracle

  • Nov 2025

    StayWise — AI Hotel Recommendation API

    Personal · Independent build

    REST API for intelligent hotel matching: budget, location, amenities, rating, and availability. NestJS + MongoDB with full Swagger documentation and Docker deployment.

    what shipped

    • API returns relevant results for free-text queries without pre-defined keyword matching
    • p95 query latency: ~800ms (structured MongoDB query ~50ms, LLM passes ~750ms)
    • Swagger UI available at /api for full interactive documentation
    • NestJS
    • TypeScript
    • MongoDB
    • Docker
    • Swagger
    • Claude API
Browse all projects →DocTrace case study ↗

From the notebook

All articles →
Blockchain · 3 min

Three Ways to Add Blockchain to Government Infrastructure

When a state service network wants tamper-evident credentials, the architecture question is not 'which chain?' It's 'where does the network live?' — and each answer costs an order of magnitude more than the last.

AI × Web3 · 2 min

AI as Decision Support, Not Decision-Maker: Lessons From Building a Mentoring Platform

Matching mentors to learners looked like an AI problem. It turned out to be an architecture problem: keep a boring transactional core, put the AI beside it, and make every recommendation explain itself.

Blockchain · 3 min

Bitcoin's UTXO Model vs Account-Based Chains: Why It Matters for Wallet Design

Engineers who know Ethereum usually underestimate Bitcoin. It isn't a different API — it's a different mental model, and coin selection quietly decides both your users' fees and their privacy.

Three recurring themes

Focus 01

Blockchain Architecture

read the pillar

Focus 02

AI × Web3

read the pillar

Focus 03

Engineering Leadership

read the pillar

For recruiters

Hiring for principal architecture or a CTO-track role?

Open to global leadership roles in blockchain, AI and distributed systems — full-time or long-term strategic scope. This site is the live resume.

Resume →The recruiter lane →LinkedIn ↗

How I work

More context →

Field notes

I usually get pulled in where systems are already under stress: mid-flight architecture changes, multi-team delivery drift, or wallet and custody systems with hidden edge cases that need to survive production.

  1. Translate rough product ambition into systems that scale
  2. Bring security, delivery discipline, and architecture back into alignment
  3. Use AI tactically to improve execution quality, not to replace thinking
Free resource

Blockchain Custody Architecture Guide

Fireblocks vs BitGo comparison, MPC wallet design, omnibus vaults, and a decision framework for choosing a custody provider.

Get it free →

Work with me

All services →

  1. 1:1 Strategy Call

    45-min focused session on your architecture, stack decisions, or team challenges.

    45 min / remote

  2. Smart Contract Audit

    Security + logic review with written report and 60-min debrief.

    2–4 weeks / project

  3. Architecture Review

    Deep review of your blockchain or backend stack with written recommendations.

    1 week / async

  4. Fractional CTO

    Monthly retainer with weekly calls, async Slack access, and architecture decisions.

    Retainer / monthly
Book a strategy call →