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Full Stack Engineer with over 4 years of experience specializing in the design of robust architectures (Spring Boot 3, Microservices) and high-performance mobile applications. Proven expertise in technical leadership and implementing event-driven systems (Kafka) for scalable and resilient solutions. Committed to performance optimization, code quality, and deploying scalable solutions in demanding sectors (banking, pharmaceuticals, and online services)…Full Stack Engineer with over 4 years of experience specializing in the design of robust architectures (Spring Boot 3, Microservices) and high-performance mobile applications. Proven expertise in technical leadership and implementing event-driven systems (Kafka) for scalable and resilient solutions. Committed to performance optimization, code quality, and deploying scalable solutions in demanding sectors (banking, pharmaceuticals, and online services)

Oussama BERRAZAGA

Web Developer, Programmer, Full Stack Developer, +4

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Full Stack Engineer with over 4 years of experience specializing in the design of robust architectures (Spring Boot 3, Microservices) and high-performance mobile applications. Proven expertise in technical leadership and implementing event-driven systems (Kafka) for scalable and resilient solutions. Committed to performance optimization, code quality, and deploying scalable solutions in demanding sectors (banking, pharmaceuticals, and online services)…Full Stack Engineer with over 4 years of experience specializing in the design of robust architectures (Spring Boot 3, Microservices) and high-performance mobile applications. Proven expertise in technical leadership and implementing event-driven systems (Kafka) for scalable and resilient solutions. Committed to performance optimization, code quality, and deploying scalable solutions in demanding sectors (banking, pharmaceuticals, and online services)

Available to hire

Full Stack Engineer with over 4 years of experience specializing in the design of robust architectures (Spring Boot 3, Microservices)
and high-performance mobile applications. Proven expertise in technical leadership and implementing event-driven systems (Kafka)
for scalable and resilient solutions. Committed to performance optimization, code quality, and deploying scalable solutions in
demanding sectors (banking, pharmaceuticals, and online services)

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

French

Advanced

Arabic

Fluent

Work Experience

Web Developer - Freelance at CARE ONE

June 30, 2021 - July 20, 2025

Developed a medical web application for doctors to fill out a dynamic smart multi-step form with adaptive questions based on patient’s clinical condition. The form automatically generated reports in Word format upon completion.

Android Developer - Freelance at HOMEJEK

January 31, 2021 - July 20, 2025

Developed a native Android app connecting clients and service providers, featuring an interactive map, user profile, and booking system. Also contributed to the web admin dashboard in a team of 3 developers.

Full Stack Mobile Developer - End-of-studies project at AMEN BANK

June 30, 2020 - July 20, 2025

Participated in a complete redesign of Amen Bank's mobile banking application, adding new design and features for cross-platform app and web dashboard. Developed functionalities such as biometric authentication, real-time SICAVs and stock monitoring, branch geolocation, and management of banking operations.

Full Stack Developer at KCA Dev Services

July 1, 2025 - Present

Maintained, evolved, and debugged the back-end of a modular Spring Boot 3/Java 17/PostgreSQL architecture for a pharmaceutical platform; developed and patched mobile app features with React Native; optimized mobile-backend communication for low-latency real-time tracking; resolved complex bugs to improve stability; managed production processes and deployments to Play Store and App Store.

Full Stack Team Lead at Online VIP Consulting (OVC)

December 1, 2022 - June 1, 2025

Provided technical leadership for a team of 3 developers; designed and implemented strategic microservices with Spring Boot focusing on performance and resilience; integrated security via Spring Security; managed data modeling/persistence with Spring Data JPA and PostgreSQL, including Flyway migrations; developed mobile features with React Native; supervised CI/CD pipelines and ensured code quality with unit/integration tests.

Full Stack Developer at KORSGY TECHNOLOGIES

March 1, 2022 - November 1, 2022

Developed a high-performance mobile app using React Native/TypeScript with a subscription system; redesigned responsive web interfaces with React/Material UI; deployed AWS infrastructure (Cognito authentication, OpenVPN connectivity) and a Serverless backend framework.

Full Stack Developer – Internship: End of Studies project at AMEN BANK

January 1, 2020 - June 1, 2020

Overhauled Amen Bank's mobile banking app with a modern design and advanced features; implemented core functionalities including biometric authentication, real-time SICAV/stock market tracking, branch geolocation, and banking transaction management.