Member of Technical Staff, Infrastructure

About Us

Sieve is a multi-modal lab curating the world's highest-quality training datasets — spanning video, audio, images, text, and 3D. We combine exabyte-scale data infrastructure and novel multimodal understanding techniques that push the frontier of foundation models. Video alone makes up 80% of internet traffic, and across modalities, data has become the enabling medium powering creativity, communication, gaming, AR/VR, and robotics. Sieve exists to solve the biggest bottleneck in the growth of these applications: high-quality training data.

We partner with top AI labs and did $XXM last quarter alone, as a team of ~30 people. We also raised our Series A from Tier 1 firms such as Matrix Partners , Swift Ventures , Y Combinator , and AI Grant .

Why Now

Sieve is one of the most capital-efficient teams in AI — roughly 30 people serving the world's leading AI labs across every major data modality. You'll join early, own problems end-to-end, and watch your work ship directly into the models defining the frontier.

About the Role

As an infrastructure engineer at Sieve , you’ll design and engineer systems that handle the compute, scheduling, and orchestration of complex ML + ETL pipelines that need to run quickly, reliably, and cost-effectively on large sums of video.

You’re likely a good fit if you love optimizing for system uptime, have worked with cloud technologies, optimizing hyper-fast distributed systems at the scale of thousands of GPUs, and building great internal tooling and CI/CD for rapid iteration.

Requirements

3+ years of experience building foundational data infrastructure

Proficient in working across diverse cloud architectures

Designed and maintained pipelines that process petabytes of data

Developed robust CI/CD pipelines tailored for ML-focused teams

Strong coding experience with Go and Python; Experience with Rust is a plus

Operates as an IC who leads by example

Experience with large-scale video data systems

In-person at our SF HQ

Benefits

401k + Full Health Insurance

Breakfast, Lunch, and Dinner covered and your choice of snacks

Ubers covered home

*all roles at Sieve require you to be onsite in San Francisco 5 days per week