About

About Me

I am Manar, a Software Engineer based in Germany with over 5 years of experience building secure, scalable backend systems.

I build backend platforms for fintech, mobility, and booking products, with a focus on API performance, security, and reliability in production.

My core stack includes Django, Django Rest Framework, Spring Boot, PostgreSQL, and microservices, with hands-on experience in CI/CD, Docker, Kubernetes, and AWS.

I hold a Master degree in Software Engineering and a Bachelor degree in Computer Science from ESPRIM.

Experience Timeline

Career Journey

Full Stack Engineer

Stealth Startup • Remote

Sep 2025 - Present 1y

Engineered and deployed scalable RESTful APIs using Java 21 and Spring Boot, enhancing system performance and maintainability.
Developed and optimized the frontend interface with React to deliver a responsive and high-performing user experience.
Orchestrated end-to-end CI/CD pipelines using Azure DevOps, streamlining build, test, and deployment workflows.
Integrated and administered MySQL databases via Azure resources, ensuring efficient data storage and high availability.
Containerized the application with Docker and deployed it on Azure Web App Service to enable seamless cloud scalability.
Implemented Cloudinary integration for secure document storage, managing access control and download permissions for exam PDFs.

Backend Engineer

KAOUN • Tunis, Tunisia

Jan 2024 - Sep 2025 1y 9m

Engineered backend systems for a financial superapp serving 250,000+ users, enabling secure money transfers, QR payments, and cross-border transactions.
Improved API response times by 40% by optimizing DRF queries, serialization, and pagination.
Led an advanced eKYC solution with video and document analysis plus facial recognition, reducing manual review time by 80%.
Tuned raw SQL queries with Django cursors, achieving up to 70% faster execution in high-load microservices.
Authored comprehensive Pytest suites across microservices and earned an early promotion within 8 months.

Full Stack Engineer

Insightful Pro • Remote, France

Jan 2023 - Dec 2023 1y

Built and optimized Spring Boot REST APIs for a hotel booking platform, cutting request processing time by 50%.
Developed a Chrome extension to scrape and analyze SEO data from SERPs, increasing data collection efficiency by 70%.
Implemented CI/CD pipelines with Jenkins to automate build, test, and deployment workflows.
Resolved production performance bottlenecks across 5+ projects, improving stability and response times.
Contributed to Agile/Scrum delivery and code reviews, accelerating delivery cycles by 20%.

Backend Engineer | Freelance

RELEAD • Tunis, Tunisia

Nov 2022 - Feb 2023 4m

Built authentication and authorization APIs to support an early-stage MVP.
Designed a location-based reservation feature integrating map workflows for 20+ Wi-Fi-enabled buildings.
Created an admin interface enabling non-technical users to manage building locations.
Delivered Spring Boot and PostgreSQL APIs supporting 500+ concurrent users with sub-600ms response times.

Backend Engineer

MANTARAY • Monastir, Tunisia

Aug 2021 - Nov 2022 1y 4m

Designed a scalable Spring Boot backend for an electric scooter sharing platform with real-time availability and reservations.
Implemented JWT authentication, geolocation-driven queries, and secure payment workflows.
Applied SOLID principles and clean architecture boundaries to improve maintainability and scalability.
Improved reliability with transaction management, centralized error handling, and consistent API contracts.
Collaborated with mobile and frontend teams to align business logic and API integrations.