Ahmed Gadria
Senior Software Engineer
München
Summary
Accomplished software engineer with over 5 years of expertise in Java and Spring, specializing in backend development and microservices. Proven track record of consistently delivering high-quality software and driving product innovation. Recognized for exceptional collaboration with cross-functional teams to meet project objectives and exceed client expectations.
Overview
2025
2025
years of professional experience
5
5
years of post-secondary education
4
4
Languages
Work History
Senior/Professional Java SOFTWARE ENGINEER
Check24 GMBH
5 2022 - Current
- Developed a new banking product for seamless Girokonto switching, enabling customers to switch banks effortlessly through an intuitive digital platform: Check24 Konto Umzug . This solution interfaces with over 13 banks and multiple third-party partners using diverse communication protocols, ensuring a smooth and reliable experience.
- Backend & Core System : Built the core system using a microservices architecture, focusing on scalability, modularity, and performance. Implemented backend components using Java , Spring Boot , and RESTful APIs .
- Tech Stack & Tools : Leveraged a comprehensive tech stack including Java , Spring Boot , RabitMQ , Docker , Kubernetes , MongoDB, PostgreSQL, Grafana , PMM, Prometheus and custom integration protocols for banking and third-party API communication.
- Mentorship : Providing mentorship and conducting code reviews to uphold best practices and high code quality standards. Guided the team in advanced technical problem-solving, fostering a collaborative environment that prioritizes growth and skill development.
- Strategic Influence & Architecture Design : Collaborated closely with PMs to translate complex business requirements into technical deliverables, balancing customer needs with technical feasibility. Actively contributed to high-level architecture decisions, optimizing for performance, compliance, and long-term scalability.
Professional SOFTWARE ENGINEER
estateOs by Coliv GMBH
04.2020 - 04.2022
- EstateOS is a web-based platform designed for streamlined real estate management. As a core team member, I contribute as a full-stack developer, working on a range of high-impact features that support the platform’s growth and reliability.
- End-to-End Feature Development: Spearheaded the design and implementation of essential features, ensuring they meet performance, usability, and scalability requirements.
- Code Base Enhancement: Engaged in continuous code refactoring and improvement to maintain a high-quality, maintainable codebase.
- Quality Assurance: Established and maintained testing protocols, designing and writing comprehensive tests to guarantee the stability and performance of our services.
- Project Leadership: Took on cross-functional responsibilities, contributing to development, DevOps, security, software architecture, and team leadership, fostering a collaborative and innovative work environment.
- Tech Stack: Spring Boot, Java, Angular, TypeScript, JavaScript, HTML, SCSS, NgRx, RxJS, SQL, Node.js, NestJS, CI/CD.
Junior Software Engineer
Digit-U
01.2019 - 04.2020
- Implemented back-end and blockchain components for an application enabling users to create legally binding, blockchain-secured contracts online.
- Developed smart contracts using Ethereum (Ganache, Solidity) to secure contract transactions and approvals on the blockchain.
- Built the back-office system for an online NeoBank, "Ferdaws," managing customer services, transaction monitoring, and account management.
- Designed and implemented the back-end and back-office for ATJAPP, a mobile application providing users with key online services.
- Tech stack: Node.js, Angular, Spring, MongoDB, Neo4j, Ethereum (Ganache, Solidity).
Education
Master of Science - Computer Science and Software Engineering
National Engineering School of Carthage
Tunisia 05.2016 - 07.2019
Bachelor of Science - Mathematical Sciences & Physics
Preparatory Institute For Engineering Studies Manar
Tunisia 05.2014 - 07.2016
Timeline
Professional SOFTWARE ENGINEER
estateOs by Coliv GMBH
04.2020 - 04.2022
Junior Software Engineer
Digit-U
01.2019 - 04.2020
Master of Science - Computer Science and Software Engineering
National Engineering School of Carthage
05.2016 - 07.2019
Bachelor of Science - Mathematical Sciences & Physics
Preparatory Institute For Engineering Studies Manar
05.2014 - 07.2016
Senior/Professional Java SOFTWARE ENGINEER
Check24 GMBH
5 2022 - Current
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