Hello, world! I'm Sebastian Gräf, German software developer with a strong online marketing background as a professional affiliate marketer. I'm making things on the web since 2003.

Contact me

About me

I can help companies build maintainable web applications and performant websites, that convert visitors into customers, in a transparent and clearly communicated way. I have experience working solo and in international teams, from B2C finance to enterprise software, on greenfield and legacy projects. I'm based in Bangkok and specialize in fullstack web application development.

As a product-minded developer I can act as a partner for product management or founders to explore technical feasibility and improve team efficiency to get products in front of real users faster on solid foundations.

At the moment I'm working remotely for Lifull Connect on some of the largest South East Asian real estate portals across a variety of tech stacks. Besides tech I'm really into travelling, with and without my laptop, often by motorcycle.

German, English


"I can highly recommend Sebastian. Always delivering on time, great eye for details, state of the art knowledge and use of framework and best practices (especially regarding React and GraphQL) and just overall nice to work with!"
Alexander Barge, CTO @ deineStudienfinanzierung


  1. Senior developer

    Lifull Connect
  2. Freelance Developer

    Sebastian Graef LLC

    Remote software development for German companies on a long-term contract basis while working on two indie SaaS projects.

  3. Frontend Software Engineer

    Polynorm Software AG

    Frontend development of a complex new product (PIM system with CMS, media management, classifications, import/export, clipboard...). Helped to rewrite and restructure the first prototype from jQuery to a React app with a component-based architecture and a modern build process. Developed and improved new features, introduced JavaScript unit tests.

  4. Managing Director & Frontend developer

    enter digital ventures

    Frontend development and online marketing of two SaaS apps from idea to finished product. Developed two frontend applications utilizing AngularJS communicating with a custom backend API and embeddable widgets. Planned and executed a content marketing strategy resulting in thousand of social shares at launch.

  5. Owner, Web Developer & Online Marketer

    newgo media

    Web development and online marketing, started while in school. Buying, selling and development of my own domain names like,, Realized about 50 small to medium-sized web projects. Professional affiliate marketing with SEM and SEO. Built, managed and monetized a domain portfolio with up to 1,500 domains.


  1. Communications Lead

    START Berlin

    Online Marketing, especially social media, and IT. Co-organized events, meetups, workshops and tours for founders and students interested in the Berlin startup scene and entrepreneurship.