Bastian Seipp

Bastian Seipp


I'm Bastian

Software Developer & Architect


Let me introduce myself

I'm a passionate developer from germany with 12+ years of professional experience and deep knowledge of C#, .NET and Web-Development. I am skilled in backend development using .NET or .NET Core and client-side development, either on desktop using WinForms or in the web using ASP.NET Core or React. Not only that, but I also have great experience in building websites for businesses and how to build a web presence in general. On top of that, I have years of experience in planning and leading software projects of all sorts and sizes in close communication with executive-level decision-makers and end-customers, including governmental bodies.


What I can do for you

Explore the range of services I offer and how I can help you achieve your goals. With my expertise and experience in the field, I am committed to delivering high-quality services that cater to your unique needs. From development and implementation to training and consulting up to administration and support, my services are designed to help you navigate the ever-evolving world of technology and stay ahead of the curve.

  • Online Presence

    I specialize in creating custom websites that elevate your brand and connect you with your audience and customers. My services include tailored website design, SEO optimization, social media integration and ongoing maintenance.

  • Full-Stack Development

    As a Full-Stack Developer, I offer comprehensive solutions for developing applications, including front-end and back-end development, database design and management, as well as deployment and maintenance of the applications. With expertise in various programming languages and frameworks, I am able to deliver robust, scalable, and secure applications that meet the unique needs of my clients.

  • Consulting

    As a consultant, I offer expertise in software development, project management, and system architecture. My services are tailored to meet the needs of individual clients, and I am committed to providing efficient and effective solutions to complex problems. I work closely with my clients to understand their specific requirements, and I am dedicated to delivering high-quality results that meet their expectations. My goal is to help businesses improve their operations and achieve their objectives through technology solutions and strategic planning.

  • Tutoring

    As a tutor, I offer personalized and effective training to individuals and groups looking to improve their skills and knowledge in various fields. With my experience as a trainer and developer, I provide a supportive and engaging learning environment that caters to different learning styles and goals. Whether it's software development, IT, or other technical subjects, my tutoring services are designed to help learners of all levels achieve their objectives and advance their careers.


Skills I have collected
over the years


C#, JavaScript, TypeScript, HTML/CSS, SQL, Python


.NET, .NET Core, ASP.NET Core, EF Core, WinForms, Bootstrap, React, jQuery, DevExpress


MariaDB, MySQL, MS SQL, Sqlite


Windows, Windows Server, Linux Server


Visual Studio, ReSharper, DevExpress


Docker, CI/CD (Gitlab, TeamCity, Azure DevOps), Virtualization (Hyper-V), Networking



An overview of my professional experiences.

2023 - Present

Valantic ACE (Sieger Consulting)

Senior Consultant / Team-Lead a reputable and established consulting firm in the IT industry, specialized in data & analytics.


medDV GmbH

Full Stack Developer

...for a leading software development company in the healthcare industry.



Full Stack Developer

...for a diverse range of customers on various web-based software solutions.


KoCoS Messtechnik AG

Software Developer

...for a global company group that develops measuring and testing systems for power grid equipment and laser-optical inspection systems.


Do you have questions?

  • Can I hire you for commercial work?

    Yes, you can purchase my services for commercial work. I offer solutions designed to meet the needs of businesses and professionals.

  • Do you engage in long term contracts?

    Yes, I engage in long-term contracts. I am committed to providing ongoing support and services to meet your needs even over an extended period.

  • Can you work full time?

    I am currently unable to work full-time, but I am available for part-time or project-based work to meet your needs.


Let’s get in touch!

If you have any questions or inquiries about my services, I would be happy to hear from you. Please feel free to reach out to me, and I will get back to you as soon as possible. You can find my email address and social media links below. I look forward to hearing from you!