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Hi, I'm Teresa Holfeld, a passionate software developer with extensive experience in Android, Java, and web technologies. I've been involved in founding and leading tech initiatives, including the Hamburg Coding School and Small and Modern GmbH, where I combined my love for coding with leadership and management. I enjoy creating impactful web and mobile applications and teaching others about coding. With a background in computer science and media technologies, I am always eager to learn new technologies and improve my skills. If you're looking for a friendly and dedicated developer or teacher, I'm excited to connect and collaborate!…Hi, I'm Teresa Holfeld, a passionate software developer with extensive experience in Android, Java, and web technologies. I've been involved in founding and leading tech initiatives, including the Hamburg Coding School and Small and Modern GmbH, where I combined my love for coding with leadership and management. I enjoy creating impactful web and mobile applications and teaching others about coding. With a background in computer science and media technologies, I am always eager to learn new technologies and improve my skills. If you're looking for a friendly and dedicated developer or teacher, I'm excited to connect and collaborate!

Teresa Holfeld

Web Developer, Programmer, App Developer, +2

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Hi, I'm Teresa Holfeld, a passionate software developer with extensive experience in Android, Java, and web technologies. I've been involved in founding and leading tech initiatives, including the Hamburg Coding School and Small and Modern GmbH, where I combined my love for coding with leadership and management. I enjoy creating impactful web and mobile applications and teaching others about coding. With a background in computer science and media technologies, I am always eager to learn new technologies and improve my skills. If you're looking for a friendly and dedicated developer or teacher, I'm excited to connect and collaborate!…Hi, I'm Teresa Holfeld, a passionate software developer with extensive experience in Android, Java, and web technologies. I've been involved in founding and leading tech initiatives, including the Hamburg Coding School and Small and Modern GmbH, where I combined my love for coding with leadership and management. I enjoy creating impactful web and mobile applications and teaching others about coding. With a background in computer science and media technologies, I am always eager to learn new technologies and improve my skills. If you're looking for a friendly and dedicated developer or teacher, I'm excited to connect and collaborate!

Available to hire

Hi, I’m Teresa Holfeld, a passionate software developer with extensive experience in Android, Java, and web technologies. I’ve been involved in founding and leading tech initiatives, including the Hamburg Coding School and Small and Modern GmbH, where I combined my love for coding with leadership and management. I enjoy creating impactful web and mobile applications and teaching others about coding.

With a background in computer science and media technologies, I am always eager to learn new technologies and improve my skills. If you’re looking for a friendly and dedicated developer or teacher, I’m excited to connect and collaborate!

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Language

German

Fluent

English

Advanced

Work Experience

Founder, Teacher, Organizer, Management, Web Developer at Hamburg Coding School

April 1, 2017 - Present

Founded and managed Hamburg Coding School, teaching programming and web development, organizing courses and events, and involved in web development projects to support educational goals.

Co-Founder, CEO, Web and Mobile App Development, Management at Small and Modern GmbH

December 31, 2023 - July 11, 2025

Co-founded and served as CEO, overseeing company management and leading development of web and mobile applications, driving business strategy and product development.

Freelance Software Developer at Freelance

December 31, 2020 - July 11, 2025

Developed Android, Java, and web applications as a freelance developer, delivering customized software solutions to clients.

Senior Android Developer at Moovel Group

January 31, 2018 - July 11, 2025

Senior Android Developer responsible for designing and implementing robust Android applications and mentoring junior developers.

Android Developer, Head of Mobile at Ubilabs GmbH

March 31, 2017 - July 11, 2025

Led the mobile development team, focusing on Android app development, project management, and technical leadership.

Java/JavaScript Developer at GCI Space

April 30, 2015 - July 11, 2025

Developed web and Java-based software solutions, contributing to front-end and back-end development tasks.