Andreas Karl Weber
Bridging strategy
with execution.
I partner with organizations that are serious about engineering excellence. I build high-performing engineering teams and resilient cloud systems.
The Three Pillars
My value proposition lies in the intersection of these three domains. I don't just manage; I understand the code. I don't just code; I understand the business.
Fractional CTO
Transforming engineering organizations through clear strategy, culture building, and operational excellence.
Principal Architect
Designing resilient, cloud-native systems that scale with business needs. DDD & Event-Driven Expert.
Fullstack Developer
From React to Rust. I don't just draw diagrams; I ship production-ready code.
Working Philosophy
Technical skills are commodities. The real differentiator is how we work. These principles guide every decision I make, from architecture to hiring.
Ship to Learn
Perfect is the enemy of good. I prioritize rapid iteration cycles to validate assumptions early, rather than over-engineering in a vacuum.
Choose Boring Technology
Innovation tokens are limited. I advocate for proven, stable stacks (Postgres, Go, React) for core systems to minimize operational risk.
Default to Async
Deep work requires focus. I build cultures where written documentation and asynchronous communication are the default, not meetings.
Professional Journey
System Status: Migrating
Porting professional history from the legacy monolith.
Current positions are mocked for the curious early adopters.
TechGrowth GmbH
"Turnaround leadership for a Series B Fintech."
- Restructured 25-person engineering team, reducing turnover by 40%
- Reduced AWS spend by 30% through architecture optimization
- Implemented formal RFC process for major technical decisions
"Andreas didn't just fix our tech stack; he fixed our engineering culture. He brings a rare mix of empathy and technical rigour."
CloudScale Inc
"Leading the migration from Monolith to Microservices."
- Designed event-driven architecture using Kafka
- Mentored 5 senior engineers to staff level
- Achieved 99.99% uptime during migration
Selected Case Studies
Highlights of strategic initiatives and technical challenges I've solved.
Technical Due Diligence
Comprehensive audit for a VC firm investing in a SaaS platform.
Challenge
Determine if the legacy codebase could support 10x growth post-investment.
Result
Identified critical scalability blockers; Investment proceeded with a 6-month replatforming plan I designed.
Key Deliverables
Payment Gateway Unification
Unifying 5 global payment providers into a single API abstraction.
Challenge
High complexity, regulatory requirements, and zero-downtime requirement.
Result
Reduced integration time for new payment methods from 4 weeks to 3 days.
"The architecture Andreas designed is still the backbone of our system 3 years later. Rock solid."
Technical Radar
This radar is dynamically generated from my project history. Proficiency levels (Expert/Proficient/Familiar) are computed based on years of experience.
Languages
- TypeScriptFamiliar
- GoProficient
- RustFamiliar
- PythonFamiliar
Infrastructure
- AWSFamiliar
- KubernetesProficient
- TerraformFamiliar
- GCPFamiliar
Concepts
- Domain Driven DesignProficient
- Event SourcingFamiliar
- MicroservicesFamiliar
Initiatives &
Research
Beyond my personal consultancy, I am actively building the future of software delivery and collaboration through these dedicated entities.
api.land
Curated infrastructure and building blocks for modern engineering teams. Providing the modules you need to build faster.
intelligence.space
A research lab re-imagining human-AI collaboration. Building an "Intelligent Space" for the entire lifecycle of systems engineering and learning itself.
Andreas Karl Weber
Currently accepting Fractional, Advisory engagements starting March 2026.
Ready to scale?
I only take on 2-3 major engagements per year to ensure deep focus. Before we talk, please confirm we are aligned on the basics.
Prerequisites for Success
- You are ready to invest in long-term architecture, not just quick fixes.
- You have decision-making authority or direct access to it.
- You value async communication and written documentation.