Tobias Keller
Senior Software Engineer
About
Tobias Keller is a Senior Software Engineer at Source, where he focuses on building reliable, scalable infrastructure to power intelligent automation systems for enterprise clients worldwide. Known for his precision, problem-solving mindset, and calm technical leadership, Tobias ensures that every line of code written at Source is designed for both performance and longevity.
With a strong background in backend engineering and distributed systems, Tobias has spent over eight years developing robust architectures that connect AI models, data pipelines, and enterprise platforms. His expertise lies in designing systems that are not just fast but fault-tolerant — capable of handling complex, multi-service workflows across global teams.
Before joining Source, Tobias worked at a Berlin-based SaaS company, where he led backend engineering for high-traffic automation tools used by financial and logistics organizations. His work there helped reduce latency across their cloud infrastructure by over 40%, setting a new technical benchmark for the company.
At Source, Tobias plays a key role in the Engineering team, collaborating closely with the AI and product departments to translate high-level concepts into clean, maintainable systems. He is a strong advocate for continuous improvement — emphasizing testing, documentation, and thoughtful engineering culture.
Tobias holds a Master’s degree in Computer Science from the Technical University of Munich. He is fluent in multiple programming languages, including Python, Go, and TypeScript, and often contributes to open-source projects centered around automation frameworks and API design.
Outside of work, Tobias enjoys long-distance cycling, experimenting with new backend frameworks, and mentoring junior engineers in the Berlin tech community.
