About me
As a blind software developer, I know first-hand how important it is to make digital products accessible to all people. What is a theoretical requirement for many is my lived reality — every day.
For over seven years, I have been developing backend solutions, primarily with PHP, Symfony, and Laravel. Starting in e-commerce, I now work at RSU GmbH on backend services for vehicle, product, and appraisal data.
Accessibility is not an add-on for me, but the foundation of good development. I actively bring this perspective into teams and projects.
Alongside backend development, I have been working with machine learning and artificial intelligence for years — the foundation was laid by my bachelor's thesis on anomaly detection in industrial streaming data. Today I work productively with current AI tools on a daily basis and exchange ideas in my employer's internal AI guild.
Professional Experience
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Software Developer
RSU GmbH – Vehicle / Product / Appraisal Data
Joined as part of a team takeover following the insolvency of TriStyle Customerce GmbH. Development of backend services for vehicle, product, and appraisal data with event-driven communication via Apache Kafka. Member of the internal AI guild with regular exchange on AI tools in development. Stack: Laravel, PHP, MongoDB, MySQL, Apache Kafka, Docker.
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Full Stack Developer
TriStyle Customerce GmbH
Development of a microservice-based webshop for Peter Hahn (Domain Platform, Order & Manage). Implementation of complex checkout requirements, performance improvements through asynchronous processing via message systems and REST APIs. Stack: Symfony, PHP, ReactJS, Next.js, Docker, PostgreSQL.
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Software Developer (Symfony)
basecom GmbH & Co. KG (Part of the GROW Digital Group)
Business Unit Symfony. Development of customer projects and webshops, contribution to the SaaS product desk.ly, performance optimizations, and migrations of legacy applications (Symfony 1 to 6). Stack: Symfony, PHP, VueJS, Docker, Traefik, GitLab CI/CD, PostgreSQL, MySQL.
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Bachelor Internship & Thesis
GMH Systems GmbH
Design and implementation of a hybrid machine-learning system for anomaly detection on a cylindrical grinding machine in final production at Georgsmarienhütte GmbH. Edge inference on Harting MICA Box with MQTT-based streaming data processing; model training on OEDIV cluster using K-Nearest Neighbor and HNSW. Stack: Python (NumPy, pandas, scikit-learn, hnswlib), ClickHouse, Docker, MQTT.
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Working Student IT
Coffee-Bike GmbH
PHP/Symfony development and integration of the Salesforce REST API as a working student alongside my studies.
Skills
Backend
- PHP
- Symfony
- Laravel
- Python
Frontend
- JavaScript
- TypeScript
- React
- Next.js
- Vue
Databases
- PostgreSQL
- MySQL
- MongoDB
- ClickHouse
Messaging
- REST
- MQTT
- Apache Kafka
AI / ML
- scikit-learn
- hnswlib
- Anthropic API
- OpenAI API
- Mistral API
- Claude Code
- Codex
- Ollama
DevOps & Tools
- Docker
- Linux
- CI/CD
- Git
- PhpStorm
Accessibility
- WCAG
- ARIA
- Screenreader Testing
- Accessible Web Development
Methodology
- Agile/Scrum
- Code Review
- Microservices
Languages
- German (Native)
- English (Fluent)
- Spanish (A2)
Projects
KnowDown — Cross-platform quiz arena for iOS, Android, and web with an ELO rating system. Symfony backend with passwordless magic-link authentication, mobile client built with Expo/React Native. Live at knowdown.de, on the App Store and on Google Play. Stack: Symfony, PHP, PostgreSQL, Expo, React Native, TypeScript.
Education
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B.Sc. Media Informatics
Osnabrück University of Applied Sciences
Germany Scholarship 2016 and 2017.
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Abitur
Gymnasium Oesde
Volunteering
Junge Retina Niedersachsen — Spokesperson of the youth working group of PRO RETINA Deutschland e. V. for people aged 18 to 35 with retinal diseases.
Kolping Georgsmarienhütte — Active member for years. Support for used clothing collections, carnival activities, and production of posters and films.