Great on Merge Two Sorted Linked Lists, Difficulty Easy
Great on Debugging a Blank List in a Frontend Application, Difficulty Medium
Great on Design a User Dashboard with Vue.js, Difficulty Medium
Great on Reverse Digits of a 32-bit Integer, Difficulty Easy
Great on Word Search in Grid, Difficulty Medium
Great on Validate Parentheses in a String, Difficulty Hard
Building and maintaining scalable full-stack applications using React and Node.js
Designing and developing REST APIs for high-performance systems
Collaborating with international teams to deliver production-ready features
Improving application performance and optimizing system architecture
Contributing to AI-powered and SaaS-based solutions
Trained and improved Large Language Models (LLMs) for advanced JavaScript use cases
Designed datasets and prompts to enhance model accuracy
Validated AI outputs to ensure correctness and reliability
Improved performance and reduced load times by ~30%
Integrated payment gateways and real-time inventory systems
Built scalable e-commerce platforms serving thousands of users
Developed car configurators for BMW and Mini Cooper
Optimized backend APIs and improved system efficiency
Developed full-stack applications using React, Node.js, and MongoDB
Built scalable REST APIs and improved system performance
Collaborated with remote teams to deliver stable features
Designed and built a full SaaS system for handling customer pre-orders with scheduled time slots. Implemented real-time order tracking and status updates. Built scalable backend APIs to handle concurrent users. Integrated secure payment processing and validation. Improved operational efficiency and reduced manual workload.
Implemented appointment scheduling, patient records, and dashboards. Built a multi-tenant SaaS platform for clinics. Developed scalable backend using Node.js and MongoDB. Built a responsive frontend using React.
Implemented real-time chat interface using React. Built an AI-powered tool using LLM APIs for code generation and debugging. Designed backend for prompt handling and response processing. Improved response accuracy using prompt engineering.

Mazen G. is mid-senior Level Developer