Nabeel Ahmed Khan

Senior Backend Architect

Available for work

Designing highly scalable, fault-tolerant infrastructure and Money Movement systems.

Expertise in NestJS, TypeScript, and Rust on Solana. Bridging Web2 services to Web3 protocols with a focus on distributed data consistency.

About

Senior Backend Architect (6+ YOE) specializing in designing highly scalable, fault-tolerant infrastructure and Money Movement systems. Expertise in NestJS and TypeScript engineering at scale, with proven experience bridging Web2 services to Web3 protocols.

Actively developing with Rust and Anchor on Solana, focusing on distributed data consistency and high-concurrency APIs.

Backend Architecture

NestJS, TypeScript, Node.js, Microservices, gRPC, Event-Driven Architecture

Blockchain

Solana (Anchor/Rust), Ethereum (Solidity/Hardhat), Smart Contract Security

Data & Infrastructure

PostgreSQL, Redis, Docker, AWS, CI/CD Pipelines

Selected Projects

Bulwark

Solana security auditing engine using a hybrid monorepo (NestJS/Rust). Engineered static analysis tool for Anchor programs.

Rust NestJS Solana Security

Midl

P2P crypto-fiat bridge optimized for 10,000+ concurrent users. Implemented idempotent transaction processing.

Backend P2P FinTech High Scale

Aasan Bridge

Cross-chain bridging solution utilizing LayerZero OFT for secure asset transfers between EVM and Solana.

LayerZero Cross-chain EVM Solana

BlockX Network Rescue

Diagnosed consensus failures and resolved synchronization deadlocks to restore network liveness for BlockX.

Blockchain Consensus Debugging

Script TV

Watch-to-Earn platform on EVM. Designed tokenomics contracts and high-throughput indexing backend.

EVM Smart Contracts Web3

Duckends

Touchless gesture-control feedback system deployed in Dubai Mall kiosks using computer vision.

Computer Vision AI IoT

Experience

BlockApex

Mar 2023 -- Present

Senior Software Engineer & Technical Lead • Karachi, PK

Architected Bulwark, a Solana security auditing engine, utilizing a hybrid monorepo (NestJS/Rust).
Designed the backend for Midl, a P2P crypto-fiat bridge, optimizing for 10,000+ concurrent users.
Developed Aasan Bridge, a cross-chain bridging solution utilizing LayerZero OFT.
Rescued the halted BlockX network by diagnosing consensus failures.
Built backend for high-traffic dApps ensuring 100% uptime via Redis caching.
Streamlined DevOps, reducing deployment time by 40%.

Xord

May 2022 -- Mar 2023

Full Stack Blockchain Engineer • Karachi, PK

Solely architected Script TV, a Watch-to-Earn platform on EVM.
Implemented secure wallet integration for Enterprise Ethereum applications.
Optimized database queries for a blockchain explorer, reducing latency by 40%.

Tezeract

Dec 2020 -- May 2022

Co-Founder & CTO • Karachi, PK

Led a team of 4 engineers in building 5+ AI-centric SaaS products.
Developed Duckends, a touchless gesture-control feedback system.
Integrated Sabre APIs for an OTA application handling $50k+ monthly transactions.

Xehen

May 2020 -- Dec 2020

Lead MERN Stack Engineer • Karachi, PK

Managed a 3-person MERN stack team, leading architectural design for 5,000 active users.

Education

Virtual University of Pakistan

2024 -- 2026

Master of Science in Computer Science

Lahore, PK

University of Karachi (UBIT)

2017 -- 2021

Bachelor of Science in Software Engineering

Karachi, PK