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Mahmoud Sharaf
From Egypt 03:35 PM (GMT+02:00)
$50/hr or $24,000/yr
Active 2 hours ago

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Senior Full Stack Software Engineer

Full-Stack Engineer
Available for hire
Years of experience
4+ years
Experience level
Senior
Available for
Full-time
Available from
04 Oct 2026
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Software Engineer with 4+ years of professional experience building and maintaining scalable backend and full-stack applications, with a strong focus on Node.js, TypeScript/JavaScript, Express.js, Angular, MongoDB, and AWS. Experienced in developing RESTful APIs, microservices and serverless architectures, legacy-system modernization, production troubleshooting, database performance optimization, and event-driven systems. Strong background working on large-scale, business-critical production systems, resolving complex backend issues, improving system reliability and maintainability, and delivering cloud-based solutions in Agile environments. Experienced in designing and developing RAG-based systems for domain-specific data retrieval and processing.

Skills

JavaScript React.js NestJS Node.js Express.js Angular.js JIRA Jenkins Mongoose JWT MERN stack MEAN stack MongoDB PostgreSQL MySQL Agile Flutter

Languages

English Arabic

Employment History

Software Engineer at Make I.T Simple - UK 2022 - 2026
• Contributed to the development and maintenance of the large-scale Octopaye payroll system, building and maintaining RESTful APIs using Node.js, Express.js, MongoDB, and Mongoose within a full-stack Angular environment. • Refactored and optimized legacy backend services and application components, resolving complex production issues and improving code quality, maintainability, and reliability across core payroll workflows. • Contributed to the migration of backend processes toward a microservices and serverless architecture using AWS Lambda, SQS, SNS, and Fargate, supporting improved scalability and service isolation. • Supported the investigation and resolution of live production queries for active clients, diagnosing issues and delivering timely fixes while maintaining system stability and business continuity. • Diagnosed and resolved recurring backend performance and timeout issues caused by processes retrieving excessively large datasets from MongoDB, improving the reliability and responsiveness of affected workflows. • Designed and developed a Retrieval-Augmented Generation (RAG) system for UK SuDS data, enabling intelligent retrieval and processing of domain-specific information.

Education

Bachelor's Degree in Computer Science at Faculty of Computers and Information, Menofia University 2016 - 2020
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