Ahmed's Resume
Professional Experience
Ireferdoc📍 Lüneburg, Germany
Lead Full Stack Developer🗓️ Mar. 2023 - Apr. 2025
- Led the development of a secure healthcare referral platform focused on performance, reliability, and user experience.
- Implemented secure user authentication and multi-channel notifications to streamline referral workflows.
- Modernized and optimized the legacy codebase, significantly improving performance and visibility
- Deployed the application using containerized infrastructure and set up continuous integration and delivery processes
- Improved app speed by 65% and cut server costs by 30% through performance tuning and infrastructure optimization
- Set up automated testing and build pipelines to ensure consistent, high-quality releases
YAZIO GmbH📍 Remote, Germany
Senior Full Stack Developer🗓️ Sep. 2024 - Mar. 2025
- Spearheaded the development of cross-platform health tracking features, driving a 25% increase in daily active users
- Led a cross-functional team to deliver weekly sprint releases with zero major regressions
- Designed and launched a backend system optimized for speed and scalability, reducing API latency by 40%
- Implemented serverless architecture and global content delivery solutions, improving load performance by 65%
- Built and managed automated deployment pipelines, reducing deployment time from 45 minutes to under 10 minutes
Arizult Consulting📍 Lüneburg, Germany
Senior Full Stack Developer🗓️ Jun. 2024 - Jan. 2025
- Led full-stack development of a compliant telehealth platform, enabling secure management of over 10K patient records
- Directed a team of engineers and a designer, delivering all milestones two weeks ahead of schedule
- Developed a reusable component library adopted across multiple internal projects, cutting frontend development time by 40%
- Implemented secure user roles and streamlined onboarding processes, reducing account setup time by 50%
- Maintained 99.99% platform uptime and ensured over 80% test coverage through automated testing
Vendostack📍 Lüneburg, Germany
Senior Full Stack Developer🗓️ Aug. 2022 - Oct. 2024
- Developed a marketplace platform with a scalable and maintainable full-stack architecture
- Integrated global and local payment systems to support diverse transaction needs
- Built an automated test suite to ensure fast, reliable, and safe deployments
- Mentored junior engineers on system architecture, best practices, and quality assurance
ChartMogul GmbH📍 Remote, Germany
Senior Full Stack Developer🗓️ Apr. 2022 - Sep. 2024
- Developed an internal analytics dashboard to support real-time business insights
- Improved testing and deployment workflows by migrating to a more automated and scalable pipeline
- Refactored the data access layer, boosting data retrieval speed by 45% under high load conditions
Safrafan Logistics📍 Lüneburg, Germany
Full Stack Developer🗓️ Jan. 2022 - May. 2023
- Developed a logistics web application with booking and real-time tracking features
- Integrated payment processing, ride estimation, and automated notifications for a seamless user experience
- Designed and implemented backend database logic and deployed the application to a cloud-based environment
LimeSurvey GmbH📍 Hamburg, Germany
Full Stack Developer🗓️ Feb. 2018 - Apr. 2022
- Increased platform efficiency by 30% by rebuilding core interface and modernizing backend systems
- Led the transition to containerized CI/CD workflows, streamlining development and deployment processes
- Supported SaaS clients by delivering customized solutions tailored to enterprise requirements
Self-Employed📍 Remote, Germany
Freelance Full Stack Developer🗓️ Jun. 2016 - May. 2018
- Built and deployed full-stack web applications for small and medium-sized business clients
- Delivered solutions including e-commerce, booking, and analytics platforms with integrated data storage systems
- Set up version control workflows and automated CI/CD pipelines to ensure efficient and consistent project delivery
Education
HAW Hamburg📍 Hamburg, Germany
Bachelor of Science (Information Engineering & Electronics)🗓️ Jan. 2017 — Jan. 2022
- Major: Information Engineering & Electronics
- Key Coursework: Digital Communication, Computer Networks, Embedded Systems, Operating Systems, Data Structures & Algorithms, Object-Oriented Programming, Microprocessors & Microcontrollers, Software Engineering, Signal Processing, Numerical Methods
- Electives & Focus Areas: Wireless Communication, IoT Systems, Python Programming, Edge Computing, System Security
- Teaching Assistant Roles: Linux & Edge Computing, Python Programming, Freshman English, Student Service-Learning
Brandenburg University of Technology📍 Cottbus, Germany
Master of Science (Environmental Resource Management)🗓️ Jan. 2015 — Jan. 2017
- Core Focus Areas: Environmental Policy, Sustainable Development, Resource Economics, Climate Change Adaptation, Environmental Impact Assessment, Water and Waste Management
- Electives & Special Topics: Renewable Energy Systems, Geographic Information Systems (GIS), Environmental Modeling, Circular Economy
- Research & Projects: Participated in interdisciplinary projects focused on sustainable land use, energy efficiency, and environmental planning
Certification
OpenLearn📍 Germany
Project Management🗓️ 2018
- Project Planning: Gained skills in defining project scope, setting realistic timelines, and developing detailed project plans to ensure successful delivery.
- Resource Management: Learned how to allocate and manage resources, including team members, budget, and materials, to optimize project performance.
- Risk Management: Developed strategies for identifying potential risks, assessing their impact, and creating mitigation plans to minimize project disruption.
- Communication and Stakeholder Management: Enhanced communication skills to effectively collaborate with stakeholders, ensuring that expectations are met and project goals are aligned with organizational needs.
- Monitoring and Reporting: Acquired the ability to track project progress, measure performance, and provide regular updates to stakeholders, ensuring projects stay on track.
University of Helsinki📍 Germany
Object-Oriented Programming with Java, part II🗓️ 2018
- Advanced Object-Oriented Design: Explored more complex OOP concepts such as abstract classes, interfaces, and design patterns to create flexible and scalable applications.
- Java Libraries and APIs: Gained proficiency with Java’s extensive standard library and APIs, including file I/O, networking, and multi-threading.
- Data Structures and Algorithms: Implemented efficient algorithms and data structures, leveraging Java’s built-in collections and data handling capabilities.
- Software Development Best Practices: Emphasized writing clean, maintainable code through good design practices, unit testing, and debugging techniques.
University of Helsinki📍 Germany
Object-Oriented Programming with Java, part I🗓️ 2018
- Introduction to Object-Oriented Concepts: Gained a deep understanding of key OOP concepts such as classes, objects, inheritance, polymorphism, and encapsulation.
- Java Basics: Mastered the core features of Java, including syntax, data types, control structures, and exception handling.
- Building Classes and Methods: Developed basic Java applications by creating classes, methods, and constructors to define behavior and structure.
- Working with Collections: Used Java’s built-in collections framework (lists, sets, and maps) for managing and processing data efficiently.
HAW Hamburg📍 Germany
MySQL database🗓️ 2017
- Database Design: Involved in creating and structuring relational databases, ensuring data integrity and efficient querying.
- SQL Query Optimization: Developed complex queries and optimized them for performance, ensuring fast response times even with large datasets.
- Data Migration and Backup: Implemented strategies for migrating data across environments and ensuring database reliability through backups and restoration techniques.
- Database Security: Applied security measures to protect sensitive data, including setting up user permissions and roles, and ensuring compliance with data protection regulations.
- Performance Tuning: Monitored and tuned the database for optimal performance, including indexing and caching strategies.
HAW Hamburg📍 Germany
Algorithm and Data Structure🗓️ 2017
- Problem Solving: Efficient problem-solving techniques through algorithmic thinking.
- Data Structures: Understanding and implementing core data structures such as arrays, linked lists, trees, and graphs.
- Time and Space Complexity: Analysis of time and space complexity to optimize performance in real-world applications.
- Algorithmic Solutions: Developing algorithmic solutions for a variety of computational problems.