Steven Demartini
Software Engineer at Linear
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolSteven Demartini is a software engineer with 13 years of experience building full-stack systems and leading engineering teams, currently at Linear in the San Francisco Bay Area. He has a track record of shipping mission-critical infrastructure at scale—designing geospatial and disaster-response systems at Airbnb and founding a software org for a stealth clean-energy moonshot where his tools accelerated R&D >10x. His technical breadth spans Python, Django, GraphQL, PostgreSQL, TypeScript, React, real-time CRDT collaboration, and hardware-integrated automation platforms that cut experimental cycles from months to days. An active open-source contributor, he has improved Graphene-Django performance and maintains a production-ready rich text editor used across projects. Beyond engineering, he’s a DIY musician who publishes work on Bandcamp/YouTube/Spotify, reflecting a creative streak that informs pragmatic, user-focused product decisions.
13 years of coding experience
14 years of employment as a software developer
BS Electrical Engineering and Computer Science, BS Electrical Engineering and Computer Science at University of California, Berkeley
Github Skills (13)
query-tuning10
database-tuning10
graphql10
query-optimization10
python10
wordpress-graphql10
wpgraphql10
graphene10
django10
database-optimization10
pytest9
precommit7
pre-commit-hook7
Programming languages (11)
Github contributions (5)
graphql-python/graphene-django
Oct 2022 - Jan 2025
Build powerful, efficient, and flexible GraphQL APIs with seamless Django integration.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:76 reviews, 5 PRs, 3 branches in 2 years 3 months
Contributions summary:Steven contributed primarily to improving query performance and fixing issues related to Django integration within the GraphQL API. They introduced and subsequently reverted changes to a field resolver to optimize database queries using `select_related` and `prefetch_related`. Further commits involved removing obsolete tests and updating the project's dev setup with `pre-commit`, along with improvements to the documentation and local development examples, including GraphiQL style integration. They also addressed a backward compatibility issue, preserving JSONField in the compat module.
pythondjangographqldjango-projectintegrate
sjdemartini/graphene-django-permissions
May 2022 - Oct 2022
A performant and holistic view-permissions layer for graphene-django/GraphQL.
Contributions:10 reviews, 56 commits, 37 PRs in 5 months
holisticpythonauthorizationmutationdjango
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