# Joshua Polzin

> Software Engineer at Google

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/joshuapolzin

I am a driven software engineer passionate about writing high-performance code; designing and building end-to-end software systems; and collaborating with other curious and motivated engineers.

## Work Experience
### Software Engineer @ Google
Jan 2023 – Present | San Francisco Bay Area

### Principal Software Engineer @ SambaNova Systems
Jan 2021 – Jan 2023 | San Francisco Bay Area
I design and implement functionality, performance, and scalability features in the SambaFlow runtime software stack to enable next-generation AI models.

Skills: Hardware resource management, performance analysis and optimization, multithreading, multiprocessing, HW-SW codesign

Some projects that I've previously worked on:

- Identified and optimized data transfer bottlenecks using thread-level parallelism, pipelining, and better hardware resource management to improve end-to-end model performance by 50% in some workloads.

- Led a project team of 9 software engineers to update the runtime software stack for a new accelerator bringup, enabling ML models to run on the new accelerator within minutes of power-on.

- Identified and fixed extreme memory inefficiencies in the software stack, decreasing CPU memory utilization by over 90% in large language models.

- Designed and implemented low-level data transfer primitives for cooperative distributed applications using proprietary data transports.

- Researched and authored an internal guide to writing safe multiprocessed and multithreaded code in high-performance computing environments, which was used to fix multiple critical bugs and prevent future ones.

- Led the first-ever runtime software documentation effort, working with customer engineering and senior engineers to create system administrator documentation for the first SambaFlow release and all subsequent releases.

### Senior Software Engineer @ SambaNova Systems
Jan 2020 – Jan 2021

### Software Engineer @ SambaNova Systems
Jan 2020 – Jan 2020

### Software Engineering Intern @ Capital One
Jan 2019 – Jan 2019 | McLean, VA
Researched and developed technologies to automate Android accessibility testing for the flagship Capital One app, potentially saving up to 120 developer hours every sprint once integrated. Also facilitated a small team of interns to build an internal app and website using the cross-platform Flutter framework.

### Software Development Intern @ Protolabs
Jan 2018 – Jan 2018 | Maple Plain, MN
Developed internal C++ applications using agile methodologies on the CNC Toolpathing Team.


## Education
### Bachelor of Science Engineering - BSE in Computer Science
University of Michigan College of Engineering


## Contact & Social
- LinkedIn: https://linkedin.com/in/joshua-polzin

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Source: https://flows.cv/joshuapolzin
JSON Resume: https://flows.cv/joshuapolzin/resume.json
Last updated: 2026-03-29