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Software Engineer with experience across the full stack—building scalable backend services and intuitive frontend interfaces using React and React Native. I’ve delivered production-ready features across mobile, web, and backend systems, with a strong focus on performance, usability, and system design. Proficient in AWS serverless technologies and certified as an AWS Solutions Architect Associate, I thrive in high-impact environments where I can ship clean, efficient code and solve real-world problems.…Software Engineer with experience across the full stack—building scalable backend services and intuitive frontend interfaces using React and React Native. I’ve delivered production-ready features across mobile, web, and backend systems, with a strong focus on performance, usability, and system design. Proficient in AWS serverless technologies and certified as an AWS Solutions Architect Associate, I thrive in high-impact environments where I can ship clean, efficient code and solve real-world problems.

Moaz Mostafa

Full Stack Developer, Back-End Developer, DevOps Developer, +4

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Software Engineer with experience across the full stack—building scalable backend services and intuitive frontend interfaces using React and React Native. I’ve delivered production-ready features across mobile, web, and backend systems, with a strong focus on performance, usability, and system design. Proficient in AWS serverless technologies and certified as an AWS Solutions Architect Associate, I thrive in high-impact environments where I can ship clean, efficient code and solve real-world problems.…Software Engineer with experience across the full stack—building scalable backend services and intuitive frontend interfaces using React and React Native. I’ve delivered production-ready features across mobile, web, and backend systems, with a strong focus on performance, usability, and system design. Proficient in AWS serverless technologies and certified as an AWS Solutions Architect Associate, I thrive in high-impact environments where I can ship clean, efficient code and solve real-world problems.

Available to hire

Software Engineer with experience across the full stack—building scalable backend services and intuitive frontend interfaces using React and React Native. I’ve delivered production-ready features across mobile, web, and backend systems, with a strong focus on performance, usability, and system design. Proficient in AWS serverless technologies and certified as an AWS Solutions Architect Associate, I thrive in high-impact environments where I can ship clean, efficient code and solve real-world problems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Arabic

Fluent

German

Beginner

Work Experience

Software Engineer at Calo Inc.

April 1, 2025 - Present

Overhauled backend architecture for core product services, including design, data migrations, and zero-downtime rollout. Engineered scalable microservices using AWS Lambda, RDS (PostgreSQL), DynamoDB, and AppSync, optimizing performance under high load. Reduced API latency by 40% through intelligent caching, structured observability, and automated CI/CD pipelines. Facilitated collaboration between product and design teams to deliver features aligned with business KPIs. Contributed to system design documents, architectural decisions, and internal engineering best practices. Participated in peer code reviews, onboarding, and agile sprint planning.

Associate Software Engineer at Calo Inc.

April 1, 2025 - October 23, 2025

Delivered 100+ backend, web, and mobile features in a fast-paced agile team using Node.js, React, React Native, and TypeScript. Refactored legacy code and optimized APIs, improving request efficiency by 50% with caching. Built an alerting system for 100% service error coverage, improving reliability and incident response.

Software Engineer Intern at Calo Inc.

October 1, 2023 - October 23, 2025

Built an internal dashboard with React and Amplify; integrated Cognito for secure authentication. Automated data exports and notifications using Lambda, S3, and SQS to reduce manual operations.

IELTS Prep Platform (Project) at Amazon Web Services

February 1, 2025 - October 23, 2025

IELTS Prep Platform – Project developed with AWS, partnering with engineers and government stakeholders to create a prep platform.

Platform Engineer — Coach Connect at Coach Connect

February 1, 2025 - Present

Coach Connect — Platform to Find and Book Coaches, built with React, TypeScript, and Supabase, enabling real-time syncing and secure authentication.

Software Engineer at Calo Inc.

April 1, 2025 - November 21, 2025

Software Engineer at Calo Inc. responsible for backend architecture, data migration, and zero-downtime rollout. Engineered scalable microservices using AWS Lambda, RDS (PostgreSQL), DynamoDB, and AppSync; improved API latency by 40% through intelligent caching, observability, and automated CI/CD pipelines. Facilitated collaboration between product and design to deliver features aligned with KPIs. Contributed to system design docs, architectural decisions, and engineering best practices; participated in peer reviews, onboarding support, and Agile sprint planning.

Associate Software Engineer at Calo Inc.

April 1, 2025 - April 1, 2025

Delivered 100+ backend, web, and mobile features in a fast-paced Agile team using Node.js, React, React Native, and TypeScript. Refactored legacy code and optimized APIs, improving request efficiency by 50% with caching. Built a monitoring system achieving 100% service error coverage, enhancing reliability and incident response.

Software Engineering Intern at Calo Inc.

October 1, 2023 - October 1, 2023

Built an internal dashboard with React and Amplify; integrated Cognito for secure authentication. Automated data exports and notifications using Lambda, S3, and SQS to reduce manual operations.