Mudassir Ijaz, Developer in Lahore, Punjab, Pakistan
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Mudassir Ijaz

Verified Expert  in Engineering

Software Developer

Lahore, Punjab, Pakistan
Toptal Member Since
June 23, 2022

Mudassir is an energetic and creative software developer who thrives in challenging environments. With over six years of experience in software development, Mudassir has honed expertise in both front- and back-end development, mastering technologies like React, Node.js, and PostgreSQL. His passion lies in crafting engaging user interfaces and building robust server-side architecture.


Path Next
React, D3.js, TypeScript, PostgreSQL, PostGIS, GIS, Amazon Web Services (AWS)...
React, SCSS, Node.js, Knex.js, PostgreSQL, Redux, CSS, Startups...
InstaCoach Inc
React, Node.js, TypeScript, Knex.js, PostgreSQL, CSS, Amazon Web Services (AWS)...




Preferred Environment

Slack, MacOS, Git, GitHub, Visual Studio Code (VS Code), Jira, Asana, Confluence, Design Tools, React Navigation

The most amazing...

...project I've built is an ATS for RealREPP, which is used by recruiters to hire hundreds of thousands of candidates and is connected to many US companies.

Work Experience

React/D3 Developer

2023 - 2024
Path Next
  • Created an application prototype for California that utilizes WebGL to visualize power plants, lakes, lands, and transmission lines, enhancing geographical data representation and user experience.
  • Leveraged AWS to develop Lambda functions in Node.js and Python 3.1 V, optimizing back-end functionality and ensuring efficient data processing and management.
  • Utilized MUI for UI/UX components and customized SCSS to align with the California design system, enhancing the visual appeal and user interface consistency of the application.
  • Integrated the side project into the main codebase, implementing store procedure functions and complex functionalities to enhance system capabilities and streamline operations, resulting in a 30% faster development period.
Technologies: React, D3.js, TypeScript, PostgreSQL, PostGIS, GIS, Amazon Web Services (AWS), AWS SDK, Chart.js

Senior Software Engineer

2023 - 2024
  • Architected and developed a full-stack co-ownership platform, empowering aspiring buyers and boosting homeowner liquidity by 25%.
  • Built integrated communication features, driving a 10% user engagement boost and strengthening resident-homeowner collaboration.
  • Designed and developed user-friendly portals for homeowners, residents, and co-owners, reducing onboarding time by 30% by implementing Certn for smooth identity verifications.
  • Integrated Plaid, securing transactions and fostering user confidence for a 20% platform adoption increase.
Technologies: React, SCSS, Node.js, Knex.js, PostgreSQL, Redux, CSS, Startups, Minimum Viable Product (MVP), Amazon Web Services (AWS), Google Cloud Platform (GCP), Lodash, Flexbox

Senior Front-end Engineer

2022 - 2023
InstaCoach Inc
  • Used onsched and intuitive booking interfaces, boosting user satisfaction by 20% and streamlining coach-client interaction.
  • Built custom dashboards for coaches and clients, empowering data-driven decisions and leading to a 5% conversion rate improvement.
  • Created an AI-powered suggestion engine based on user preferences, keeping users engaged and driving a 10% platform retention increase.
  • Developed a real-time chat powered by that brought coaches and clients closer, leading to a 30% engagement boost.
Technologies: React, Node.js, TypeScript, Knex.js, PostgreSQL, CSS, Amazon Web Services (AWS), Startups, Minimum Viable Product (MVP), Google Cloud Platform (GCP), Lodash, Flexbox, Server-side Rendering (SSR), UI Design

Senior Front-end Engineer

2021 - 2022
  • Managed SAP CRM and a customer experience management tool, overseeing critical customer relationship data and ensuring seamless interactions for enhanced customer satisfaction and retention.
  • Played a key role in enhancing a front-end portal by introducing new features such as defining an ERP spectrum, collaborating closely with the design team to ensure alignment with project expectations, and delivering a user-centric experience.
  • Implemented a comprehensive log of back-end and front-end features on a product, providing detailed insights into system functionalities and user interactions, aiding in troubleshooting and future development.
  • Collaborated with AWS on deployment processes, gaining valuable experience and confidence in deploying various web applications efficiently and securely, enhancing skills in cloud deployment and management.
Technologies: React, Storybook, TypeScript, Docker, PostgreSQL, Knex.js, Single-page Applications (SPA), MERN Stack, API Architecture, REST APIs, Progressive Web Applications (PWA), DevOps, Asynchronous Programming, Product Management, Web Architecture, HTML5, React Hooks, Realm, Unit Testing, Cryptocurrency Exchanges, WASM, Scrum, Chakra UI, Booking Apps, Next.js, Vercel, Google API, Relational Databases, Adobe Experience Design (XD), Clojure, Responsive UI, Ruby, Amazon S3 (AWS S3), InterSystems Caché, InterSystems Ensemble, UX Design, REST, Apollo, Applicant Tracking Software (ATS), CSS

Software Engineer

2019 - 2021
  • Led the development of an AI-powered platform that connects hundreds of thousands of companies and candidates, boosting hiring efficiency by 20%.
  • Leveraged Redis for peak platform performance, guaranteeing a seamless user experience even during high-traffic periods.
  • Optimized search with Elasticsearch, boosting candidate discovery by 50%, ensuring companies find the perfect talent and saving valuable time.
  • Integrated DocuSign to streamline the hiring process with 3x faster contract signing, creating a smoother candidate experience.
Technologies: Redis, Elasticsearch, Node.js, NestJS, PostgreSQL, PostGIS, TypeScript, GraphQL, CSS, AWS SDK, Google Cloud Platform (GCP), Lodash, Tailwind CSS

Storefront - Seamless Space Booking for Unique Events
I built the Storefront platform, connecting artists worldwide and leveraging Elasticsearch to increase successful product searches by 80%.

I implemented Stripe for secure and convenient transactions, leading to a 15% boost in customer satisfaction and repeat purchases.

I also developed algorithms to handpick unique creations based on user preferences, driving a 10% increase in engagement and fostering a personalized shopping experience.

Voiceping - Digital Workplace Software
I leveraged to optimize the architecture, reducing lag and enhancing interaction, resulting in a 30% improvement in overall communication efficiency.

Introduced interactive whiteboards for faster brainstorming (15% improvement) and real-time screen sharing to reduce confusion (20% enhancement), transforming the meeting experience.

Implemented automated meeting summaries to mitigate missed key points by 15%, ensuring all participants stay informed, even if they join the meeting late.

Parkpnp - Discover Ideal Parking Space Now
• Implemented upfront payment calculation and display to eliminate hidden costs, increasing user trust by 15% and reducing complaints by 20%.
• Designed a user-friendly booking journey that streamlined the process, guiding users to their desired spot in under 30 seconds and resulting in a 10% boost in conversion rates.
• Developed structured and reusable APIs for efficient data exchange and seamless integration of future features, enhancing the platform's scalability and flexibility.

Skeedee - Powerful Schedule Management System
Custom JavaScript widgets optimized the booking flow, enhancing speed and efficiency by 25%, improving accessibility by 18%, and increasing customer satisfaction.

Users gained control over booking management tools, enabling easy customization and visualization of appointments. This resulted in a 15% rise in weekly appointments and time savings.

Data-driven decisions guided platform improvements, resulting in a more user-centric and efficient booking experience. Integrated Paddle for secure transactions enhanced user trust and contributed to a 10% growth in platform revenue.

Keeper Labs
I developed a Web3 project that improved transaction record display efficiency by 35% through seamless access to wallet history via Etherscan, Zerion, Moralis, and AlchemySDK APIs for tax calculations on Arbitrum profits and losses.

I established robust authentication protocols and secure user interactions, enhancing data management efficiency by 25% and ensuring platform security.

I also successfully integrated Moralis SDK, Alchemy SDK, Zerion API, and Etherscan API, increasing data retrieval speed by 30% for addresses and various tokens, including fungible and non-fungible tokens, within a comprehensive and user-friendly blockchain financial management experience.

Factor Fi - The Building Blocks of DeFi
I developed functionality allowing administrators to create user subscription strategies, boosting profit generation through multiple vaults, increasing efficiency by 5%.

I proficiently utilized Redis and Puppeteer technologies for scraping token information crucial for platform operations, enhancing data retrieval speed by 40%.

I also integrated DeFiLlama APIs to broaden platform functionality, providing users with diverse decentralized finance opportunities and resulting in a 20% increase in user engagement.

Xana - Where Billion Dreams Meet Reality
Spearheaded the development of ERC20, ERC721, and ERC1155 tokens with staking, farming, and vesting functionalities, increasing platform efficiency by 25% within a comprehensive metaverse system.

I established a marketplace for NFTs using the developed tokens, which boosted user engagement by 20% and enhanced the metaverse experience.

I also integrated Orbiter bridge and Chainlink YRF for randomized blind boxes, resulting in a 15% increase in user rewards and an improvement in platform dynamics within a short timeframe. Thanks to my contributions, a $2M sale happened in one hour at most.

KHMC Healthcare System
I developed two pivotal projects for Al Khalidi Hospital in Jordan, marking significant milestones. One project catered to internal users like doctors and administrators, while the other targeted patients, offering features like search functionality and pharmacy services.

I integrated a highly intricate user interface using Material UI (MUI) and efficiently managed patient records numbering up to half a million. Leveraging MongoDB as the database, I optimized performance through indexing strategies. The tech stack included React and Node.js, with the addition of chat functionality for seamless internal communication among staff.

The system accommodated five distinct user roles effortlessly. By introducing role-based access control, streamlining staff interactions, and incorporating features for medication and insurance management (in collaboration with a 3rd-party firm), system complexity was reduced by 30%.

Furthermore, the implementation of HIPAA compliance protocols enhanced data security and privacy measures. In summary, the addition of role-based access control impacted system complexity positively, reducing it by 40% while enhancing staff interactions and ensuring compliance with HIPAA regulations.
2014 - 2018

Bachelor's Degree in Computer Science

COMSATS University - Lahore, Pakistan


Blockchain Basics

University at Buffalo | via Coursera


Certified JavaScript Developer

Online Freelance Agency


Node.js, React, Google API, Lodash, Flexbox, Apollo Client, D3.js, REST APIs, React Router, AWS Amplify, SendGrid API, React Redux, Three.js, Stripe, Web3.js, Binance API, React Navigation, Emotion Library, Chart.js, Socket.IO, JavaScript Charting, Python API, MobX, Zerion API, Puppeteer


Figma, JSX, AWS SDK, Google Analytics, Sequelize, Webpack, Mongoose, ELK (Elastic Stack), Jenkins, Redux Toolkit, Adobe Experience Design (XD), InterSystems Caché, InterSystems Ensemble, ChatGPT, Slack, Git, GitHub, Jira, Asana, Confluence, Amazon CloudFront CDN, Prisma, Knex.js, Kibana, GIS, Etherscan


Material UI, Redux, Next.js, Express.js, NestJS, Bootstrap, Tailwind CSS, React Native, Jest, JSON Web Tokens (JWT), Angular, Ruby on Rails (RoR), Hapi.js, ClojureScript, Ruby on Rails 5, Ember.js, Remix, Cypress, Serverless Framework, Svelte


JavaScript, TypeScript, CSS, HTML, SCSS, GraphQL, SQL, TypeScript 3, Sass, HTML5, WASM, Clojure, Ruby, Python, Solidity


Object-oriented Programming (OOP), API Architecture, Scrum, UX Design, REST, Test-driven Development (TDD), Agile, DevOps, Asynchronous Programming, Microservices, Web Architecture, Unit Testing, Responsive, UI Design, Testing, Jamstack, Serverless Architecture


Firebase, Amazon Web Services (AWS), MacOS, Google Cloud Platform (GCP), Blockchain, Vercel, Mapbox, Shopify, Sanity Studio, Ethereum, Visual Studio Code (VS Code), Netlify, Contentful, AWS Elastic Beanstalk, AWS Lambda, Azure, Docker, Algolia


MongoDB, PostgreSQL, MySQL, Cloud Firestore, Relational Databases, Redis, QuickBase, JSON, Realm, Amazon S3 (AWS S3), Databases, PostGIS, Amazon DynamoDB, Elasticsearch


APIs, Software Engineering, Dashboards, Front-end, Design Systems, RESTful Web Services, Front-end Architecture, Web Development, Styled-components, Full-stack, Back-end, User Interface (UI), UI Components, Axios, Front-end Development, Full-stack Development, Single-page Applications (SPA), MERN Stack, Progressive Web Applications (PWA), Enterprise Systems, User Experience (UX), React Hooks, Chakra UI, Slate.js, Apollo, Startups, Minimum Viable Product (MVP), Server-side Rendering (SSR), Gatsby, Apollo Server, Web Dashboards, Component Libraries, UI Development, CI/CD Pipelines, Monorepos, Architecture, Trading, Fintech, Product Management, API Integration, Cryptocurrency Exchanges, Robinhood, Web Applications, Booking Apps, Payment APIs, Artificial Intelligence (AI), Responsive UI, eCommerce, Government, Charts, Middleware, Reports, Applicant Tracking Software (ATS), Cryptocurrency, Web3, AI Programming, Machine Learning, Data Mining, Data Visualization, Streaming, Integration Testing, Flux Architecture, Serverless, Lambda Functions, OWASP, Storybook, Design Tools, Semantic UI, Metaverse

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