Our Approach

Software that grows with you

We believe in long-term partnerships – not short-term fixes.
Our software is built through close collaboration: transparent, scalable, and tailored to your business.
No spaghetti code, no outsourcing chaos. Just software that does what it promises – thoughtfully designed, expertly built, and ready for tomorrow.

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Led by Developers

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German 

Engineering

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Entrepreneurs

 at Heart

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Dedicated Teams & 

Reliability

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We make YOU successful – 

with high-quality software

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Our Key to Success

We combine strategic thinking with digital excellence. That’s how we create solutions that don’t just work – they truly move you forward.

1

Contact

Reach out – no strings attached.

2

Analysis

Let’s explore your needs together.

3

Planning

A process fully tailored to you.

Our Specialists

We choose our developers not just for their skills – but for their mindset.
Creative, solution-oriented, and always ready to go the extra mile.

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Backend Developer

Sebastian Stemmer

"I'm a physicist and Principal Engineer focused on scalable software architecture, AI, data-driven projects, and team leadership."
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Fullstack Developer

Kevin Hahn

"I'm a full-stack developer with a B.Sc. in IT & Design – passionate about web technologies, DevOps, JavaScript and Java, and love to experiment with tools like Figma, Blender, and Unity."
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Fullstack Developer

Laura Tronchin

"I’ve been working as a full-stack developer at The Key for 3 years, bringing strong technical skills and a hands-on approach to agile, user-centered projects."
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Senior Frontend Developer

Artur Gräfenstein

"From Android to React Native – my passion for intuitive interfaces defines how I work. As frontend lead at The Key, I turn that enthusiasm into real solutions with a committed team."
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CTO

Zakaria Sarmini

"I'm the CTO at TKT with years of experience in web and mobile development – and I’m passionate about tech-driven innovation, user-centered design, and real product development."

Our Case Studys

There’s no such thing as a standard solution. We show you how we turn complex challenges into real, tangible outcomes.