Interested in working with me? Send me an e-mail: hire@baumert.me

Experience #

Senior Software Engineer (Platform & Infrastructure Engineering) #

SD Software-Design GmbH — Aug 2024 – Present | Remote (Freiburg, Germany)

Design and operate internal platform tooling and production infrastructure.

• Built a cross-team Go-based CLI tool to automate release workflows; reduced mobile release time from ~1 hour to a few minutes.
• Standardized infrastructure provisioning and deployment with Ansible; reduced service setup time to seconds and improved reproducibility.
• Designed and deployed a MariaDB Galera cluster for a SaaS with hundreds of paying organizations (ranging from small teams to 10k+ users); improved fault tolerance after prior DB failure and increased throughput via read/write splitting.
• Implement and operate CI/CD pipelines used by ~20 developers across ~10–15 projects; enabled self-service deployments and reduced time-to-production by ~90%.
• Consolidated server workloads, reducing infrastructure cost and operational overhead.
• Designed and built a Go-based CLI tool to scaffold standardized projects (Django + React, CI/CD, deployment integration); enforced adoption of a unified Python toolchain (uv, ruff, mypy) and reduced setup time and inconsistencies across teams and projects.
• Worked with product and engineering colleagues to identify bottlenecks and define requirements for internal tooling.

Software Engineer (Full-Stack Web Development) #

SD Software-Design GmbH — Sep 2020 – Aug 2024 | Remote (Freiburg, Germany)

Delivered and maintained multiple customer-facing web applications, often as the primary engineer.

• Led development of projects (team size up to 5) with budgets in the five- to six-figure range.
• Introduced the company’s first CI pipeline; reduced regressions and shortened feedback cycles in code review.
• Designed and implemented integrations with external APIs, enabling core application features.
• Built and maintained SPAs using TypeScript and React.
• Translated design concepts into maintainable, responsive UI implementations.
• Onboarded and supported new developers.

Junior Software Engineer (Full-Stack Web Development) #

SD Software-Design GmbH — Feb 2019 – Sep 2020 | Bad Krozingen, Germany

• Developed and extended Django-based web applications.
• Built server-rendered applications with progressive JavaScript enhancements.
• Migrated legacy systems from Python 2 to Python 3.

Technologies #

• Languages: Python, TypeScript, Go
• Backend: Django
• Frontend: HTMX, Datastar, React
• Infrastructure & DevOps: CI/CD, Ansible, Docker, Linux, deployment automation
• Databases: MariaDB (Galera cluster, replication, failover), SQLite

Education #

Bachelor of Science in Computer Science #

Albert-Ludwigs-Universität Freiburg

• Bachelor thesis: “Web-scalable named-entity Recognition and Linking with a Wipedia-backed Knowledge Base” (Topic: Natural Language Processing)
• Seminar paper: “Models and Algorithms of Scalable Personalization Approaches” (Topic: Recommender Systems)

Additional Experience #

• Led small project teams (up to 5 developers)