Freelancer profile translated to English.
Back to original languageAbout Tobias
I am a pragmatic software architect (iSAQB certified) with over 15 years of experience in the agile development of scalable backend systems, microservices, and integration solutions.
My focus is on the conception and agile implementation of maintainable, scalable, and future-proof systems – as well as on integrating new technologies, including AI components, into existing architectures.
I help you by combining practical development work with architectural consulting, always with a pragmatic approach and a focus on delivering real added value early on (MVP-oriented).
My background includes:
- Backend development with Java and Spring Boot
- Microservices, REST APIs, and system integration
- Cloud environments, Docker, Kubernetes, CI/CD
- Authentication (OAuth2 / OpenID Connect)
- DevSecOps
I have extensive experience working in cross-functional teams and applying agile best practices such as Scrum, Test Driven Development, and Continuous Delivery.
I am accustomed to working independently in remote environments and closely with engineering teams.
German
Native or bilingual
English
Fluent
Spanish
Basic
Can work on-site
Hamburg (up to 50km), Darmstadt (up to 50km), München (up to 50km), Köln (up to 50km)
Experience
- Kalorimeta GmbHFreelance Software Architect / Team Tech LeadMarch 2022 - February 2025 (3 years)Hamburg, GermanyAgile software development according to Scrum with a focus on the new development and further development of microservices with Java and Spring Boot. Conception and development of modern frontend and backend architectures as well as coaching of junior developers. Responsible for establishing DevOps practices, continuous delivery/deployment, and implementing GitLab CI/CD pipelines. Development and maintenance of Kubernetes deployments with Helm. New development of a customer portal with Angular and TypeScript as well as development of a reusable Angular library. Provisioning and integration of APIs via the Krakend API gateway. Test automation with Java, Python, and TestCafe. Maintenance and operation of Java legacy services as well as re-conceptualization of Identity and Access Management (IAM) with Keycloak and Cerbos, including user migration between different Keycloak realms. Integration of legacy systems with Kafka.
- Tobias Daub Softwareentwicklung & IT-BeratungFreelance LecturerAugust 2024 - November 2024 (3 months)Conception and delivery of training courses "Docker for Java Developers", "Modern Software Development - Principles and Methods", "Deployment Concepts and Strategies", and "Introduction to Apache Camel - Fundamentals and Common Integration Patterns".
- Hochschule DarmstadtLecturer in the Department of Computer ScienceApril 2022 - August 2022 (5 months)Darmstadt, GermanyConducting and organizing the course "Compiler Construction" (in English), fundamentals of compiler construction, ANTLR, LLVM
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Education
- Master of ScienceDarmstadt University of Applied Sciences2013Informatik (Master of Science),
- Bachelor of ScienceDarmstadt University of Applied Sciences2012Informatik (Bachelor of Science),