Ronny Bölter — Teamlead in Backend Development
Berlin-based backend specialist with 10+ years of experience designing and building
robust, scalable backend systems and high-performance APIs. My focus is on translating
complex business requirements into clean, efficient, and maintainable code.
Skills
Languages: PHP, Java, Python, SQL
Frameworks: Symfony, Spring Boot/MVC, Django, Doctrine, Hibernate, API-Platform
Architecture: SOLID, DDD, Clean Code, REST, Event-Driven Architecture, Swagger/OpenAPI
Databases: MariaDB, MySQL, PostgreSQL, MongoDB, Neo4j, Redis, Elasticsearch
DevOps: Docker, Kubernetes, Rancher, GitHub Actions, Bitbucket Pipelines, Linux
Cloud: Microsoft Azure, AWS (S3/Minio)
Selected Projects
- TUI amello — Hotel booking platform for TUI, covering 40+ destinations and 12 hotel brands. Developed at Robinson Club GmbH. PHP, Symfony, API Platform, Redis, Kubernetes. tuiamello.com
- DataWiz 2 — Research data management system for psychologists. PHP, Symfony, Elasticsearch. GitHub
- PsychArchives 2 — FAIR-compliant disciplinary repository for psychological research. PHP, Symfony, DOI API.
- DataWiz (DFG) — DFG-funded research documentation system (2015–2017). Java, Spring, Hibernate. GitHub
- OpenID Connect for OJS — SSO integration with OAuth2/JWT for Open Journal Systems. GitHub
Contact
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