Maximilian Uhlmann - Freelance Software Engineer

Maximilian Mühlmann - Cloud-ready Microservices & DevOps Expert

I’m a software engineer with 6+ years of experience building backend systems, automating deployments, and working across the full stack in modern software teams - across industries and team sizes. My primary focus is Java and Spring Boot, but I’m open to other technologies when they fit the job. I value clean architecture, sustainable development practices, and using the right tools for each use case.

What I bring

Regulated domains

Insurance & e‑health experience; secure integrations (REST/SOAP/MQ), tests & monitoring.

Delivery speed

Automated CI/CD pipelines, reproducible builds, short feedback loops.

Clean architecture

Maintainable services, clear interfaces, meaningful tests.

Clean Code

I have internalized best practices and principles that ensure high-quality code. No matter the stack.

Scalable solutions

Architectures that grow with your business – from startup to enterprise scale.

Process automation

Optimize workflows, eliminate manual steps, boost efficiency.

Cloud-ready apps

Native cloud architectures for modern infrastructure – scalable, resilient, and cost-effective.

AI integration

Leverage AI to enhance your applications – from chatbots to intelligent data processing.

Projects

Magento Shops — unified ops & faster releases

E-commerce

Problem
Disparate shop operations and slow, risky releases during PHP 7.4→8.1 migration.
Contribution
Unified 5 Magento shops on Docker/Kubernetes & Composer with CI/CD; module/dev/infra work.
Impact
Deploy time ~50% shorter and release-related incidents ~30% lower.

Authority reporting tool (sign/encrypt, SOAP/REST/MQ)

Insurance / Regulated

Problem
Reliable, secure delivery of data to authorities across heterogeneous protocols.
Contribution
Co-designed architecture; implemented controller + SOAP/REST/MQ interfaces; auth & encryption.
Impact
Robust bi-directional authority communication in a regulated setup.

21c|ng Mock Server (Spring Boot + WireMock)

Insurance / DevEx

Problem
Flaky environments slowed local development and testing.
Contribution
Local mock server (Docker) with REST Postgres-backed data management and persistence.
Impact
Accelerated local testing and reduced environment flakiness.

VW Online Owner’s Manual

Automotive

Problem
Support needed faster access to manuals by vehicle ID with search.
Contribution
REST endpoints, data mapping, OAuth, error handling, Thymeleaf; fixed OWASP security findings.
Impact
Reduced manual lookup time through ID lookup and search.

PudoFinder MVP (multi-carrier tracking)

Logistics

Problem
Fragmented tracking APIs across carriers increased integration cost.
Contribution
Prototype microservice that aggregates carriers and exposes a standard API.
Impact
Unified tracking surface area for faster integrations.

Alexianer Registration App

Healthcare HR

Problem
Manual, error-prone employee data capture and consent collection.
Contribution
React/Java app; mail flow with PDF letter and QR code to drive consent & data entry.
Impact
Smoother data collection and onboarding experience.

Tell me what you want to build

Whether on your project's basis or contracting, I help you build stable microservices and automation. Let's discuss your ideas.

Maximilian Uhlmann