Stavros Giannakis

Software Engineer · Berlin, Germany

I’m a software engineer who enjoys solving problems end to end—from building scalable backend systems to crafting clean, intuitive frontends. I’m passionate about architecture and system design, always looking for ways to make products not just work, but work beautifully.

Experience

Software Engineer

PowerUs GmbH

I began on the B2B platform, building features that helped companies connect with qualified job candidates and integrating services like Salesforce, Braze, and Chargebee. I later moved to the B2C team, where I focus on customer-facing features while also contributing to backend performance and scalability. My stack includes NestJS, Angular, AWS, MongoDB, and other technologies.

Feb 2025 - Present
Berlin, Germany

Software Engineer

TeamViewer GmbH

At TeamViewer, I led the development and architecture of the advertisement delivery system, managing the full product lifecycle from backend to CI/CD pipelines. I also contributed as a full-stack developer on premium features for enterprise customers, and built/maintained internal tools used company-wide. Tech stack included .NET, Blazor, React, Angular, MS SQL, and a variety of Azure services like Azure App Services, Azure Functions, Azure Blob Storage, and Azure Cosmos DB.

Nov 2021 - Feb 2025
Berlin, Germany

Software Engineer

Aksia LLC

I contributed to the main customer-facing platform by building full-stack features with .NET, React, Vue, MS SQL, and Azure. Highlights include developing a custom CMS with Azure Services and enhancing a modular reporting engine for dynamic, data-driven reports.

Jan 2021 - Nov 2021
Athens, Greece

Software Engineer

Deloitte Business Solutions SA

I worked on financial and banking systems, modernizing a full-stack web banking platform and implementing RPA solutions for streamlining back-office processes and banking operations, such as automated loan restructuring. I also designed an architectural proposal for a load balancer system integrated with external RPA tools.

Mar 2019 - Jan 2021
Athens, Greece

Education

National and Kapodistrian University of Athens

Master's Degree in Computer Science
Specialization: Data, Knowledge and Information Management GPA: 9.4/10
Oct 2018 - Oct 2020

National and Kapodistrian University of Athens

Bachelor's Degree in Computer Science

GPA: 6.87/10

Oct 2011 - Oct 2017

Skills

    • Currently Working With:
    I’m currently working with Node.js, NestJS, and Angular, primarily using TypeScript. My main database is MongoDB, and I rely on Amazon Web Services (AWS) as the cloud provider. For messaging and caching, I use RabbitMQ as the message broker and Redis as the in-memory data store.
    • Familiar With:
    I have extensive experience with Microsoft technologies such as .NET (Blazor, MVC, Web API, etc.), C#, Azure, and SQL Server. I’ve also worked with React (including Redux for state management). During my academic studies, I gained experience with Python/Django, Machine Learning and Deep Learning algorithms, as well as frameworks like TensorFlow and PyTorch. I’m also experienced in integrating third-party services such as Salesforce, Braze, Twilio, and others into existing systems.
    • Workflow:
    • CI/CD pipelines: GitHub Actions, Azure DevOps
    • Containerization & orchestration: Docker, Kubernetes
    • Scalable architecture design: Applying design patterns and best practices for high-availability systems.
    • Agile development practices: Scrum, cross-functional collaboration, code reviews, and mentoring

    Interests

    Apart from coding and tapping away at my keyboard, I spend most of my time outdoors, exploring with my dog, Roxy. Traveling and wandering through new cities is one of my favorite things to do — especially when it involves hunting down the best local burgers.

    When I'm indoors, I enjoy cooking and experimenting with new recipes, as well as playing video games, with a soft spot for The Legend of Zelda series. I also like keeping up with the latest advancements in software development and trends in the tech industry.

    Notable Projects & Certifications