M Hamza Toor

AI Full-Stack Engineer

OTOZ • Temps plein

Feb 2025 - Present • 1 yr 8 mos

Designed and developed scalable backend systems using Ruby on Rails, ensuring high performance and maintainability. Built and integrated AI-powered features using OpenAI and modern GenAI tools (RAG, vector databases, prompt engineering). Developed and consumed RESTful and GraphQL APIs for seamless system integrations. Implemented background job processing with Sidekiq and Redis to optimize performance. Integrated third-party services including payment gateways (Stripe) and external APIs. Designed secure authentication and authorization systems following best practices. Collaborated cross-functionally to deliver end-to-end solutions from concept to production.

ROR Developer

techcreatix • Temps plein

Jul 2023 - Dec 2024 • 1 yr 5 mos

Designed and implemented end-to-end solutions using Ruby on Rails, including API development, database modeling, and deployment. Integrated third-party services like Stripe, OpenAI, and WhatsApp to enhance application functionality. Developed AI-driven features using OpenAI models, including custom training and prompt engineering. Deployed applications on Render and Heroku, ensuring seamless production rollouts. Conducted code reviews and maintained best coding practices for scalable and high-performance codebases. Gained intermediate-level expertise in React.js for front-end development and state management. Built and maintained Ruby on Rails applications with a focus on secure authentication, API integrations, and database management.Implemented background job processing using Sidekiq and Redis to enhance application performance. Collaborated with cross-functional teams to deliver high-quality, scalable solutions.

Software Engineer

Cyber Nest • Temps plein

Jan 2023 - May 2023 • 4 mos

Developed seamless UI integrations using HTML, CSS, JavaScript, and ReactJS in collaboration with designers. Managed efficient data storage using relational databases including PostgreSQL and MySQL. Implemented background job processing with Sidekiq and Delayed Job to enhance application performance. Integrated digital signature APIs (Wacom) for secure and reliable signature functionality. Implemented the Classy API to retrieve filtered transaction data by ID, donor, or campaign.