Andreas Klein, Freelance Software Engineer

Finally as fast as your ideas.15 years of software development experience + Agentic Engineering

Agentic Engineering. Faster, more precise, more scalable than traditional development. Freelancer — zero overhead, direct results.

Andreas Klein
Andreas Klein

Andreas Klein

Andreas Klein

Figuring out how to get things done in larger teams as a certified Scrum Master, not just in the software industry. I help agencies and companies to realize products with value and with a focus on happy people.

Outside of the web, I'm a proud father of two beautiful children, a passionate freestyle skateboarder/snowboarder and I like the taste of good espresso.

Software EngineerProfessional Scrum Master® (PSM)Scrum Product Owner (PSPO)Scaled ScrumAI/Agentic EngineeringAccessibility Consultant

Tech Stack

Agentic Engineering.

Faster, more precise, more scalable than traditional development.

15 years of experience in software development — from startup to DAX corporation. With Agentic Engineering I multiply this experience: AI-powered agents handle implementation, testing, and iteration while I steer architecture, quality, and communication.

The result: speed and precision that a single developer can't achieve traditionally — without the overhead of an agency. You talk directly to me and get the delivery power of an entire team.

What do I need for that? Just one thing:

Strong software engineers get more leverage from these tools than weak ones, not less.

Addy Osmani · Director Google Cloud AI

What can I do for you?

Software · Speed

Andy, we need a web app — in weeks, not months.

Agentic Engineering delivers production-ready software in a fraction of the time. No overhead, no delays — straight from concept to launch.

Integration · Architecture

Andy, build us an API platform that connects our legacy systems.

Modern interfaces for grown system landscapes. Your existing infrastructure becomes future-proof — without rebuilding everything.

Automation · AI

Andy, automate our reports — from 3 days to 3 minutes.

Repetitive processes are a thing of the past. Agentic Engineering automates your workflows and saves your team hours per week.

MVP · Launch

Andy, implement our MVP idea in 8 weeks — testable and market-ready.

From idea to validatable product. Fast to market, fast to learn, fast to iterate — without an army of developers.

Agile · Teams

Andy, create a High Performance Scrum Team.

Agile is more than standups and retros. Real team performance comes from structure, clear communication, and the right processes.

AI · Product

Andy, we want to integrate AI into our products.

AI features that create real value — not gimmicks. From strategy to integration, everything from a single source.

Process · Optimization

Andy, our development process is too slow.

Identify bottlenecks, optimize workflows, accelerate delivery. Agentic Engineering brings your process up to speed.

Scale · Efficiency

Andy, we want to scale without hiring more people.

More output, same team size. Agentic Engineering multiplies your capacity — technology instead of headcount.

Accessibility · Compliance

Andy, make our software accessible.

WCAG 2.2 AA, BFSG-compliant, inclusive by design. Accessibility is not a feature — it's the foundation of good software.

Strategy · Communication

Andy, we need someone who understands both tech and business.

No translator needed. Direct communication between your vision and technical implementation — no game of telephone.

AI Transformation

Andy, transform our development workflow with AI.

AI-powered development is the future. Your teams learn to work faster and more precisely with Agentic Engineering.

Data · Visualization

Andy, build us a dashboard that shows our KPIs live.

Real-time data, clearly visualized. Decisions based on facts instead of gut feeling — anytime, anywhere.

The quotes are intentionally not attributed to specific clients and are purely fictional goals — phrased to illustrate the range of possible objectives.

What are your goals?

A selection of clients whose goals I have already achieved.

Let's talk

The mechanical work of typing code is being automated. The cognitive work of understanding systems is being amplified.

Addy Osmani · Engineering Lead at Google

No claims. Just facts, studies, and sources.

The Numbers.

Agentic / AI Engineering makes experienced developers 55.8% faster. Not just anyone says that — these are concrete numbers from GitHub & Accenture.

Seniors benefit 5× more from AI than juniors. 15 years of experience aren't resume decoration — they're the multiplier. The following numbers come from GitHub, Gartner, BCG, and Anthropic.

Let's talk.

Whether it's a concrete project, agile product development, AI transformation, or strategic consulting — tell me about your goal and I'll honestly tell you how I can help.

Project & goal realization with Agentic EngineeringAgile product development & team coachingAI Transformation — consulting & implementationTechnical architecture & code reviews