Alec Rosenbaum
Staff Software Engineer (Backend) at Close
Ilchester, Maryland, United States
Summary
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Rockstar🎓
Top SchoolAlec Rosenbaum is a Staff Backend Engineer with a decade of experience building reliable, maintainable Python services and task queues, currently driving backend architecture at Close. He has a strong track record of improving open-source projects like graphene (GraphQL for Python) and tasktiger (a Redis-backed task queue), contributing both strict error-handling semantics and pragmatic refactors that enhance observability and performance. Alec’s background spans healthcare and manufacturing domains—shipping production systems at DrChrono and automating factory workflows at Formlabs—giving him a practical appreciation for data integrity and operational simplicity. Known for clean refactors and measurable improvements (e.g., logging execution times and tightening exception contexts), he pairs hands-on implementation with long-term maintainability. Based in Ilchester, Maryland, he blends engineering rigor with a willingness to tackle low-level systems work when it yields real product impact.
10 years of coding experience
7 years of employment as a software developer
University of Pittsburgh
Stackoverflow
41reputation
5kreached
2answers
2questions
Github Skills (23)
webworker10
pytest10
python10
redis10
reference-implementation10
queuing10
wpgraphql10
implement10
service-worker10
wordpress-graphql10
graphene10
graphql10
queue10
application-framework9
app-framework9
Programming languages (7)
Github contributions (5)
closeio/tasktiger
Sep 2019 - Mar 2022
Python task queue using Redis
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 releases, 49 reviews, 16 commits in 2 years 7 months
Contributions summary:Alec primarily contributed to the `tasktiger` project, focusing on implementing and improving the task queue functionality. Their commits involved logging task execution times, refactoring code, and applying formatting standards. They also addressed versioning updates and refactored code, impacting core functionality and maintainability. The user demonstrated an understanding of the project's structure and core concepts.
pythonredispython-taskredis-streamstask-queue
graphql-python/graphene
Oct 2020 - Jan 2021
GraphQL framework for Python
Role in this project:Back-end Developer
Back-end DeveloperContributions:3 reviews, 5 commits, 3 PRs in 2 months
Contributions summary:Alec primarily focused on enhancing the `graphene` library, a GraphQL framework for Python. They implemented an `UnforgivingExecutionContext` class to handle exceptions more strictly. Additionally, the user contributed to interface functionality, including defining interface metadata and addressing related test failures within the library's structure. Their work involved modifying schema, type mapping, and interface definitions.
pythonrelaygraphql-frameworkframeworkgraphql
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