Duncan Sommerville
Senior SRE at Circle
Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolDuncan Sommerville is a Senior SRE based in Toronto with 11 years of experience building and operating resilient, developer-friendly infrastructure across cloud, container, and ML platforms. He combines deep backend and DevOps skills—from tuning MariaDB Galera clusters and OpenShift deployments to designing gRPC inference services and RAG tooling for ML workflows—with a strong focus on automation and reliability. At companies like Circle, Illumio, Borealis AI, and IBM he has shipped integrations, API clients, and incident response processes that simplify developer experience and production operations. His open-source work on Sourcefabric’s Airtime highlights practical expertise in backend scheduling, timezone-aware systems, and deployment/configuration hardening. Colleagues rely on him for pragmatic solutions that balance readable, efficient code with scalable system design.
11 years of coding experience
9 years of employment as a software developer
Computer Science, Computer Science at University of Waterloo
English
Github Skills (10)
api10
postgresql10
apidoc10
devops9
php9
configuration-management9
deploying8
zend-framework8
upstart8
python8
Programming languages (4)
Github contributions (5)
sourcefabric/airtime
Sep 2014 - Jun 2015
Airtime is Sourcefabric’s open source radio software for scheduling and remote station management. Airtime provides a reliable audio playout with sub-second precision, an improved interface with modern usability features, advanced user management supporting roles and a Google-style calendar to schedule and move shows and playlists.
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:218 commits, 14 PRs, 604 pushes in 9 months
Contributions summary:Duncan's commits indicate a focus on back-end development and system configuration within the Airtime project. Their contributions include adding API calls, modifying code related to timezones and schedules, and addressing database-related issues. Furthermore, the user worked on system-level configurations involving file permissions and deployment tools. The user also contributed to system maintenance by debugging and resolving issues within the media-monitor and playout services.
improvedgoogle-stylescheduleuser-managementprecision
dpsommer/manga-reader
Apr 2020 - Mar 2023
Manga Downloader app
Contributions:1 PR, 21 pushes, 2 branches in 2 years 11 months
manga-downloaderdownloadermanga
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