Great score on Implement LRU Cache Algorithm, Difficulty Medium
Great score on Real-Time Dashboard in React, Difficulty Medium
Great score on Reverse Digits of a 32-bit Integer, Difficulty Easy
Great score on Word Search in Grid, Difficulty Medium
Great score on Validate Parentheses in a String, Difficulty Hard
Led end-to-end development of Certified.io, a large-scale Australian certification platform.
Architected multi-environment workflows (dev/staging/prod) and ensured smooth, stable deployments.
Implemented feature toggles and configuration management for multiple RTOs under one codebase.
Built CI/CD pipelines on AWS (CodePipeline/CodeBuild/ECS/EC2) with automated tests and security checks.
Developed scalable backend services in Node.js/Express, with PostgreSQL and Redis for caching and sessions.
Built responsive, performant React front-end applications.
Delivered integrations with Stripe, Meta APIs, and implemented WebSockets for real-time features.
Worked extensively with EC2, S3, AWS Lambda, and Airflow for automation and backend workflows.
Developed and integrated location-based services using Node.js, Mapbox, and RESTful APIs.
Implemented third-party API integrations, including Stripe for secure payment processing.
Designed and managed cloud-based file storage solutions using Azure Blob Storage.
Improved backend performance by implementing Redis caching strategies.
Collaborated with external service providers and internal teams for microservice-based integrations.
Integrated WebSockets for real-time communication.
Wrote optimized SQL queries and data models for PostgreSQL.
Migrated development environments to staging and production using CI/CD workflows.
Created and executed manual test scripts for comprehensive backend systems coverage.
Automated API testing using Postman.
Utilized Selenium and Playwright for automated testing of front-end applications.
Developed and executed SQL queries to rectify incorrect records.
Volunteered as a backend contributor with Code for Pakistan for a civic tech NGO.
Enables users to set and track personal and group savings goals.
Efficient tracking of stock levels, low stock alerts, and sales data.