Senior Full-Stack Entwickler, Softwarearchitekt, Produktmanager und IT-Berater

9/2023 – 12/2023

As a lead backend developer and software architect at CGM I worked on a challenging migration of a large Java codebase from a legacy inhouse
backend framework into a modern array of RESTful Microservice APIs based on the Quarkus framework. The project required a deep
understanding of the legacy codebase of a large enterprise project, its existing architecture and business logic, which enabled the migration of
various services and dependencies into redesigned and improved microservice APIs. Working in a Scrum team with the other architects, PO and stakeholders, I have also consulted and led significant improvements to the team’s workflow, particularly in the areas of Scrum, backend
automated testing and its implementation as a TDD practice.

Primary tech stack: Java 17, Quarkus framework (Core, Hibernate, RESTEasy…), RESTful APIs, Lombok, Maven, IDEA IntelliJ, Microservices
architecture, Git, GitLab CI/CD, Docker, Docker Compose, Kubernetes, Liquibase, PostgreSQL, H2, Log4j2, JUnit, Mockito, Hamcrest, Postman.
Product management: JIRA, Confluence, Miro. Methodologies: Scrum, Agile, Code reviews, TDD.

Agile Methodologie, Apache Maven, Code-Review, Confluence, Docker, Git, Hibernate (Java), It-Beratung, IT-Strategieberatung, Java-Frameworks, Java (allg.), Jira, Continuous Integration, Kubernetes, Postgresql, Representational State Transfer (REST), Scrum

8/2022 – 1/2023

OpenAshram is an online Yoga courses platform, leading the old tradition of yoga into the modern age of a sustainable, mindful and attentive
attitude towards life. We can meet at any time and from anywhere in our limitless, virtual yoga room.

As a software architect and full stack developer in OpenAshram my primary objective was to renew its product architecture from a Javascript
based API to a modern, TypeScript and NestJS based one, backed with a complete atomic and isolated testing environment. I’ve also developed
OAuth/OIDC authentication and authorization features based on Keycloak, integrated payment flows with PayPal and Stripe, implemented
frontend user access and checkout flows in React, enhanced CI/CD processes based on Docker and Gitlab and designed product specs, user
journeys and test plans. As with other projects, I have also provided mentoring and consultancy in and beyond the tech scope and helped the team and stakeholders reach sound strategic product decisions.

Backend, Front End, Docker, Full-Stack, Git, JavaScript, Continuous Integration, Mongodb, Node.Js, Openvpn, React (JavaScript library), Scrum, Software Architecture, Typescript

5/2022 – 7/2023

DasLab is making patients healthier by providing universal access to high quality diagnostics. Daslab’s interoperability platform removes these
obstacles enabling healthcare professionals, patients, and laboratories to connect easily and consistently. Its platform - built on the FHIR data
standard - makes it simple for providers and laboratories to offer at-home or professionally sampled medical diagnostics.

My main role in DasLab was a technical product owner and senior backend engineer, owning, architecting and implementing the authorization and
authentication solutions of the DasLab services ecosystem, building a complete OAuth integration with the popular Auth0 provider as a part of an MVP launch of two B2B and B2C products, serving both users and machine clients. I took part and led important tech decisions, provided
management and teams with valuable feedback and pushed processes further to achieve a deliverable MVP against a tight deadline. Alongside
that, I consulted, architected and implemented on various other backend tasks.

I’ve tightly worked with the product manager and other product owners, the backend and frontend teams, consulted management and
stakeholders, created and managed auth product backlog, researched on authentication and authorization solutions, gained a broad experience
with Auth0 services and in product ownership. The solution has been going through penetration testing by external security experts and received high grades.

Backend, Amazon Web Services (AWS), Confluence, Docker, Git, IT-Strategieberatung, IT Sicherheit (allg.), JavaScript, Jira, Kanban (Softwareentwicklung), Continuous Integration, Kubernetes, Node.Js, Postgresql, Produktmanagement, Projektmanagement (IT), Scrum, Sentry, Shopify App-Entwicklung, Software Architecture, Typescript, Sicherheit von Webanwendungen