Mohamed Abdelhafidh

Mohamed Abdelhafidh

$40/hr
Senior software engineer | Backend / Full Stack
Reply rate:
57.14%
Availability:
Hourly ($/hour)
Age:
31 years old
Location:
Paris, Paris, France
Experience:
9 years
MOHAMED ABDELHAFIDH Lead Developer | Backend & Full-Stack Development SUMMARY KEY ACHIEVEMENTS A software engineering professional with 8 years of experience in backend and full-stack development has been highlighted, expert in C# .NET Core and Node.js. Key achievements include boosting a task board's platform speed by 40% and ensuring 99.9% platform uptime and stability. A Lead Developer position is being sought, where backend and full-stack skills will be contributed to support the mission of building scalable. Experience in deploying SAAS platforms for over 10,000 users and maintaining high-pressure environment reliability underscores the capability to impact the company's growth positively and support its technological advancements.  Implemented features boosting platform speed by 40%.  Senior Software Engineer Clear USA, Remote • Developed and maintained C# .NET Core services to integrate Clear Company’s ATS with ADP, Prism HR, HireRight, UKG Ready/Pro and Indeed. • • Organized rapid-prototyping efforts and innovated an AI-driven voiceinterview MVP, questioned conventional HR-led screening workflows, and explored real-time recruitment automation in a hackathon demonstration. • Troubleshot and resolved customer support tickets related to live integrations, collaborating closely with QA and support teams. • Converted backbone.js components to React component. • Updated React UI components and promoted user-friendliness to expose integration status and enable basic workflow controls for internal users. • Wrote and maintained unit and integration tests to catch regressions and validate end-to-end connector functionality. Senior Software Engineer Growmotely USA, Remote • Led the development of new features and bug fixes for Growmotely's job board platform using C# .NET Core for backend development and AWS EC2, Document DB, Secrets Manager, and S3 for deployment and database management. • Collaborated with the frontend team using Angular for seamless integration. • Responsible for the development and maintenance of critical sections of the platform, including payroll and subscription management, utilizing Stripe and Payoneer for payment processing and management. • Maintain and upgrade backend code to the latest versions, refactor code, conduct code reviews, and ensure thorough testing of all changes. • Overcome challenges in working with legacy code; refactored and rewrote code to improve code quality and ensure platform stability. Full Stack Developer Société Générale 12/2019 - 07/2020 Secured Successful SAAS Deployment Developed SAAS with a user base of 10,000+ users. EXPERIENCE 02/2021 - 01/2025 Improved System Performance Integrated services, increasing operational efficiency by 35%.  01/2025 - Present Enhanced Job Board Efficiency France, Paris • Designed and implemented intuitive UIs that improved the user experience and increased engagement, utilizing Angular for frontend development. • Built and maintained an API testing platform that helped ensure the reliability and scalability of internal services, with the backend powered by C# .NET Core. • Successfully integrated services across multiple environments, resulting in streamlined operations and increased efficiency. • Developed and managed administration sections of the platform, including user management, authentication, and authorization, using .NET Core. • Implemented user rights management to ensure appropriate access and security throughout the platform. • Developed and maintained a comprehensive toolbox for the platform to improve development efficiency and productivity. • Applied Test Driven Development (TDD) methodologies to ensure high-quality code and minimize bugs and errors.  Ensured Platform Reliability Led team achieving 99.9% platform uptime and stability. LANGUAGES English Proficient French Advanced EXPERIENCE SKILLS Full Stack Developer Agile AWS API Gateway Jira Preferati 10/2018 - 09/2019 USA, Remote • Developed a SAAS platform using Node.js, Vue.js, and MongoDB for candidates and projects management. • Created a browser extension to parse user data from professional social media platforms and integrated it to the backend using a RESTful API. • Designed and developed a comprehensive time tracking web application using Angular, Node.js, Express.js and PostgreSQL. • Streamlined employee management, candidate tracking, and project oversight. • Deployed the SAAS projects to EC2 instances for production use. GCP AWS EC2 Blockchain .Net Framework EC2 Git Github JavaScript Kanban SDLC JWT Microservices Jest NestJS C# Java Next.js OAuth MongoDB Senior Backend Developer Microsoft SQL Server Kuplr 06/2018 - 10/2018 USA, Remote • Increased user engagement by {20%} by developing REST APIs for KUPLR's matchmaking platform. • Enhanced user satisfaction by {20%} by implementing efficient management strategies for {500} users. • Events' management. • Subscriptions. • Notifications using Node.Js along with Express.Js and MongoDB. Full Stack Developer Pixel Wilderness Github Actions PostgreSQL React SOAP SQL REST Big Data TypeScript RDS S3 Stripe Scrum Symfony Test Driven Development NET Core 04/2017 - 06/2018 Github RESTful API Node.js USA, Remote • Enhanced sports recruitment efficiency resulting in a {20%} increase in client acquisition using Symfony-based SAAS platform. • Collaborated with company representatives to identify site needs and features. • Created test sites to fully map out their ideas and gather feedback. • Produced detailed documentation, including project budget, timescale, and specifications. • Implemented user access and security, including integration with external packages and services such as payment modules (e.g., Stripe). MERN Stack Developer Express.js .NET ASP.NET Angular Azure Apache Kafka Jenkins Google Maps Azure SQL Socket.IO ECommerce C# .NET Azure Bootstrap Entity Framework Dar Blockchain 10/2016 - 04/2017 Tunis, Tunisia • Developed an MVP of an EHR backend system using Node.js, Express.js, MongoDB, and Blockchain Hyperledger Fabric. • Designed and implemented user-friendly interfaces for the RESTful APIs of the backend using React.js. • Developed an RFID card-based authentication system for the EHR platform to facilitate the authentication and authorization process for patients. Full Stack Developer Coinimp 10/2015 - 10/2016 Poland, Remote • Participated and assisted in the development of a web application for a highquality cryptocurrency mining platform, resulting in a platform used by over 153,375 users worldwide. • Improved project efficiency by {20%} through expert troubleshooting and debugging. • Implemented best practices in software development, including creating and executing Unit tests using PHPUnit. • Contributed to enhancing and optimizing project features, ensuring efficient performance of the final product. EDUCATION Bachelor's degree in software engineering Esprit School of Engineering Date period Tunis, Tunisia Docker MVC OOP Unit Testing
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