Senior Fullstack Developer | React, Java, Angular, Node

3/2023 – 11/2025

• Led development of cloud-based platforms using React, Angular, Java services, Django, Python, AWS, and AI integrations.
• Designed scalable REST APIs and optimized backend services for high-traffic production systems.
• Built AI-powered features using Python and LLM APIs for automation, document processing, and workflow support.
• Implemented automation workflows with Python, n8n, and event-driven architectures.
• Delivered Next.js/TypeScript product features with PostgreSQL and deployments on AWS/Kubernetes.
• Built RBAC models and secure integrations with HR, e-signature, and SaaS systems via OAuth2/API connectors.
• Migrated legacy systems to cloud-native infrastructure, improving performance by 40%.

Java-Entwickler, Python, Amazon Web Services (AWS), Angular, Django, React (JavaScript library)

6/2021 – 2/2023

• Built backend services with Java and Python for data processing, automation, and business workflows.
• Integrated third-party APIs, payment systems, and authentication (OAuth2).
• Designed and optimized REST/GraphQL APIs and database models for high-traffic systems.
• Built modular frontend architecture with reusable Angular and React components, reducing development time by 30%.
• Improved performance through caching, indexing, and query optimization.
• Automated deployments using Docker, Kubernetes, and CI/CD pipelines.
• Migrated legacy PHP systems into modern Laravel architecture.

Docker, Java (allg.), Python, Angular, Kubernetes

10/2018 – 3/2021

• Built multi-tenant platforms and dashboards for enterprise and healthcare clients using React, Angular, and TypeScript.
• Developed backend microservices with Java and scalable PostgreSQL/MySQL architectures.
• Implemented reporting, analytics, and automation pipelines to reduce manual operations.
• Built interactive dashboards using Angular, React, Tailwind, and D3.js.
• Maintained production systems with monitoring, documentation, and reliability improvements.

Mysql, Postgresql, Java (allg.), Three.Js, Typescript, Angular, React (JavaScript library)