Tobias Schelhas
Chief Software Architect at Gigs
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolTobias Schelhas is a Chief Software Architect based in Berlin with 17 years of experience building scalable, secure backend and infrastructure systems. He blends hands-on Go and Ruby engineering with platform-level expertise in Kubernetes, Terraform, Prometheus and databases to drive reliability and observability at scale. A former Head of Engineering and long-time SoundCloud SRE, he has led teams across production, security, and platform domains while mentoring engineers to ship resilient services. Tobias is an active open-source contributor to prominent projects like CoreDNS and Prometheus—work that spans DNS caching improvements, metrics collectors, exporters and documentation enhancements. He pairs a pragmatic engineering mindset with security-first thinking, evidenced by contributions that improve performance and correctness in widely used monitoring tooling. Trained in IT-Systems Engineering at Hasso Plattner Institute, he also brings an entrepreneurial streak from founding web businesses early in his career.
17 years of coding experience
19 years of employment as a software developer
Bachelor of Science (B.Sc.) IT-Systems Engineering, Bachelor of Science (B.Sc.) IT-Systems Engineering at Hasso Plattner Institute
English, German
Stackoverflow
148reputation
10kreached
8answers
0questions
Github Skills (68)
timeseries-database10
testing10
plugin-development10
alertdialog10
autocomplete10
process-management10
process-control10
prometheus-exporter10
ruby10
consul10
dns10
activerecord10
nameserver10
haproxy10
backend10
Programming languages (14)
Github contributions (5)
soundcloud/lhm
Nov 2011 - Dec 2019
Online MySQL schema migrations
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:59 commits, 4 PRs, 4 pushes in 8 years 2 months
Contributions summary:Tobias primarily contributed to the `lhm` repository, which focuses on online MySQL schema migrations. Their work involved modifying and improving the core functionality of the LargeHadronMigrator, a tool for performing schema changes with minimal downtime. The user's commits include updates to specifications, simplification of testing expectations, and optimization for increased performance. They also addressed issues related to record loss during table cloning.
mysql-schemarakemysqlmigrationsschema-migrations
prometheus/haproxy_exporter
Feb 2013 - Nov 2022
Simple server that scrapes HAProxy stats and exports them via HTTP for Prometheus consumption
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 releases, 11 reviews, 80 commits in 9 years 11 months
Contributions summary:Tobias primarily focused on enhancing the HAProxy exporter. Their work involved adding new metrics related to session rates, current queue length, and HTTP responses. They refactored the code to utilize the latest Prometheus client library and fixed parsing errors. They also addressed issues related to handling servers without defined health checks and invalid CSV lines, improving the exporter's robustness.
simple-serverprometheus-exporterexportshaproxy-exporterscrapes
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