Backend Engineer

Building robust, scalable systems across Blockchain, Generative AI, and Mobility

Arif Nawaz

About Me

An accomplished Backend Engineer with 5+ years of experience designing, developing, and optimizing scalable high-performance services across industries like Blockchain, Generative AI, and Mobility. Adept at developing scalable platforms, optimizing complex systems, and managing backend infrastructures for high efficiency and performance.

I have successfully delivered innovative solutions using Node.js, TypeScript, Rust, Python, and Microservices/Serverless architectures. As an adaptive and resilient professional, I am confident in my ability to bring significant value to any organization.

Experience

My professional journey in backend engineering

Senior Backend Engineer
March 2024 - Present
BlockApex (Remote)
  • Built a blockchain Indexer (local snapshot of the NEAR network) to enhance the performance of decentralized applications by caching on-chain data locally
  • Engineered a decentralized Aggregator to discover optimal token swap paths across multiple DEXs (RefFinance, Jump, and Spin)
  • Leveraged Web3 technologies, including Rust for smart contract interactions and Redis for real-time data storage
  • Acquired in-depth knowledge of NEAR blockchain's smart contract architecture
  • Contributed to building a decentralized platform for Jump DeFi, focusing on scalability and performance enhancements
Senior Backend Engineer
September 2023 - March 2024
Vyro AI (Remote)
  • Integral part of Vyro, a cutting-edge company dedicated to shaping the future of content creation through innovative AI and ML technologies
  • Developed and implemented a robust payment system using Bun.js, Hono.js, and PostgreSQL, integrating with Stripe and Google Play for over 5 million active users
  • Contributed significantly to critical services, such as the authentication service
  • Demonstrated exceptional leadership and collaboration within the team
  • Played a key role in a high-transaction Go-based gateway service, handling millions of transactions daily
Senior Software Engineer
July 2022 - September 2023
Netsol Technologies (Remote)
  • Led a team to build Hubex, an integration hub that streamlines access to third-party APIs (Stripe, Plaid, Socure, Mitek) on a unified platform
  • Successfully led a 7-member team to achieve project goals and deadlines
  • Utilized an API-first strategy to streamline the design, development, testing, and distribution of APIs
  • Implemented payment processes using Stripe and Plaid for dealer and customer portal
  • Implemented the marketplace's billing model by integrating Stripe subscriptions and invoicing
  • Proactively mentored and supported team members, providing guidance on best practices
Software Engineer
March 2020 - July 2022
Netsol Technologies (Remote)
  • Conceptualized and built a groundbreaking retail solution for BMW Group, operating in over 50 states, which processed over USD 6 million in transactions within 12 months
  • Led the implementation of a fraud check solution utilizing third-party APIs from Socure and Innovis, resulting in a 90% reduction in fraudulent data
  • Designed, developed, and owned the pricing engine, which integrated with BMW FS to provide accurate pricing calculations
  • Developed a production-ready Chatbot for Drivemate using Google's Dialogflow and Node.js, resulting in a 20% increase in car rental bookings

Technical Skills

My expertise and technical capabilities

Languages
TypeScript
JavaScript
Python
Rust
SQL
Backend
Node.js
FastAPI
REST APIs
Microservices
Serverless
Databases
PostgreSQL
MongoDB
Redis
NoSQL
Web3 & Blockchain
Web3
DeFi
DEXs
Smart Contracts
Architecture
System Design
API-first
Microservices
Serverless
Tools & DevOps
Docker
Kubernetes
AWS
Git

Projects

Showcasing my technical work and contributions

NEAR Blockchain Indexer
High-performance blockchain data caching system

Built a blockchain Indexer that creates a local snapshot of the NEAR network to enhance the performance of decentralized applications by caching on-chain data locally, reducing the need for repetitive blockchain queries.

Rust
Redis
Web3
NEAR Protocol
DEX Aggregator
Decentralized exchange aggregation platform

Engineered a decentralized Aggregator to discover optimal token swap paths across multiple DEXs (RefFinance, Jump, and Spin) by aggregating liquidity pools and implementing pathfinding algorithms for efficient routing, ensuring minimal slippage and cost-effective trades.

Rust
DeFi
DEXs
Algorithms
Imagine Art Payment System
Robust payment infrastructure for AI platform

Developed and implemented a robust payment system for Imagine Art (Vyro AI's flagship product) using Bun.js, Hono.js, and PostgreSQL, integrating seamlessly with Stripe and Google Play for web and mobile, enabling seamless transactions for over 5 million active users.

Bun.js
Hono.js
PostgreSQL
Stripe
Hubex Integration Platform
Unified API integration hub

Led a team to build the ultimate integration hub, Hubex, that streamlines access to a variety of third-party APIs (Stripe, Plaid, Socure, Mitek) on a single, unified platform to enable multiple integrations with an API-first approach.

Node.js
TypeScript
API-first
Microservices

Testimonials

What colleagues and managers say about working with me

TS
Talha Satti
Engineering Manager at Babbel

"Arif is a hard-working and intelligent guy who can deliver his tasks with quality and efficiency. He works hard and manages tasks and timelines decently. He is a good Team Player a..."

Managed Arif directly
Jul 2024
HA
Haider Aslam
Engineering Leadership at FinTech

"I have found Arif to be a very talented yet an extremely down-to-earth individual. He is a quick learner and does not shy away from working on any complex task. During the time I l..."

Managed Arif directly
Jan 2022
UK
Umair Khan
Technical Project Manager

"I found Arif focused, positive and open for challenges. He is surely an asset for any team who is willing to deliver industry top notch software products and services as he takes o..."

Managed Arif directly
May 2023

Education

My academic background

Bachelor of Science in Computer Science
2013 - 2017
University of Peshawar

GPA: 3.59

Academic Project

  • Worked on a big data analysis project using Hadoop and MapReduce during my Bachelor's.
  • Analyzed hospital OPD logs to extract patterns in patient inflow and peak hours.
  • The insights helped formulate strategies to manage rush hours more efficiently.
  • Gained hands-on experience in distributed computing and large-scale data processing.

Get in Touch

Interested in working together? Let's connect.

Contact Information

Islamabad, Pakistan

Available for remote opportunities worldwide