Mahmoud Elzoka

Senior Backend Engineer | Cloud-Native & Event-Driven Systems | AWS, GCP | Scaling Data-Intensive Platforms

Egypt

About

Senior Backend Engineer with 6+ years of experience building scalable, distributed backend systems for product companies. Specialized in Node.js, cloud-native architectures, event-driven systems, and data-intensive workflows. Proven ability to own backend services end-to-end, improve system reliability, and collaborate effectively with distributed international teams.

Experience

  • Senior Software Engineer at DNEXT Intelligence SA
    Aug 2025 - Present · 11 mos

  • Dalia (Full-time · 3 yrs)
    • Staff Software Engineer
      Oct 2023 - Jul 2025 · 1 yr 10 mos

      • Led backend architecture improvements using modern technologies. • Initiated adoption of prompt engineering techniques. • Directed project planning, task assignment, and code quality review. • Refactored and migrated major components to Node.js for performance and scalability. • Authored clear architectural and technical documentation in Confluence. • Acted as a tech lead, mentoring junior engineers and promoting engineering excellence.

    • Senior Software Engineer level II
      Apr 2023 - Oct 2023 · 7 mos

    • Senior Software Engineer
      Aug 2022 - Apr 2023 · 9 mos

  • Senior Software Engineer at Make IT Simple
    Oct 2021 - Aug 2022 · 11 mos

    • Designed RESTful and GraphQL APIs with robust documentation using Swagger and JSDoc. • Refactored legacy frontend code using Angular and NgRx for state management. • Spearheaded backend optimizations to enhance reliability and performance. • Contributed to sprint planning, feature delivery, and peer code reviews.

  • Software Engineer at CoatConnect
    Jun 2020 - Oct 2021 · 1 yr 5 mos

    • Built and deployed APIs and web apps on AWS (EC2, S3, API Gateway, Lambda). • Enhanced SEO, performance, and browser compatibility using SSR and PageSpeed optimizations. • Developed hybrid mobile apps using Cordova. • Integrated tools like Algolia, MouseFlow, Google Analytics, and Intercom. • Played a cross-functional role in marketing and product integration efforts. • Led backend service enhancements and documentation practices.

  • Back End Developer at Tazawaj
    Nov 2019 - Jun 2020 · 8 mos

    • Built and maintained a microservices architecture using event sourcing and event queues. • Designed advanced PostgreSQL graph-based data models and optimized queries. • Integrated services like AWS Cognito, SendGrid, Twilio, and ElasticSearch. • Implemented CI/CD, code standards (ESLint, Husky), and monitoring (Jaeger, OpenTracing). • Led efforts in architectural documentation and developer onboarding resources.