Software Engineer

Sieve
San Francisco, CA

About Us

Sieve is the only AI research lab exclusively focused on video data. Video makes up 80% of internet traffic and has become the enabling digital medium powering creativity, communication, gaming, AR/VR, and robotics. We believe the ability to model video will be the key unlock to the future growth of these applications and as new use cases emerge, high-quality training data becomes the bottleneck. This is where Sieve comes in.

We combine exabyte-scale video infrastructure, novel video understanding techniques, and dozens of data sources to develop datasets that push the frontier of video modeling. This combination allows us to develop datasets at a level of precision, quality, speed, and cost that has gained the trust of frontier AI labs, Fortune 100 companies, and fast-growing gen AI startups.

We've scaled from 0 to $XXM in revenue in the last 3 months with a relatively small team of 11 people, growing 25% month over month. We’re a Series A company and have raised from top-tier firms such as Matrix Partners , Swift Ventures , Y Combinator , and AI Grant .

About the Role

As a software engineer at Sieve , you’ll work across the stack to build and scale the data pipelines that create the datasets we deliver to customers. You’ll have ownership over projects end-to-end: from how data is sourced and curated, to developing ML filters, improving system efficiency, and building internal dashboards for QA and delivery. You’ll play a critical role in ensuring customers receive high-quality data on time, every time.

This role is ideal for someone who thrives on solving hard problems, enjoys working directly with customers pushing the frontier of Video AI, and wants to be challenged to achieve at the highest level.

Requirements

  • Strong Python developer, experience in Go or Typescript also welcome

  • Excellent communication skills, especially with customers and external teams

  • Motivated by hard problems that require working late nights and weekends

  • Writes clean, maintainable code

  • Able to context switch at a moment's notice

  • Bonus: Experience as an early hire at a startup

  • Bonus: Active GitHub or portfolio projects

  • In-person at our SF HQ

Posted 2025-09-22

Recommended Jobs

Staff Accountant - Accounts/Income Audit/Accounts Receivable

Stanly Ranch
Napa, CA

Company Description A private Napa Ranch cultivating the future of wellbeing. Stanly Ranch - a land that was established with legacy in mind and furthers its progression now with enlightened 21s…

View Details
Posted 2025-09-14

Senior Frontend Engineer, Client Platform

Front
San Francisco, CA

Front is the leading AI-powered customer service platform built for collaboration. Front brings core support channels into a modern, intuitive workspace where teams can collaborate on requests, autom…

View Details
Posted 2025-09-14

Embedded Software Engineer III - RUST

Innoflight
San Diego, CA

GROW WITH US AND STAY EXTRAORDINARY: Launch your career to new heights with Innoflight—one of San Diego’s fastest-growing Aerospace and Defense innovators. Here, visionary minds engineer the futur…

View Details
Posted 2025-10-28

Software Engineer, Type System

C3 Ai
Redwood City, CA

C3 AI (NYSE: AI), is the Enterprise AI application software company. C3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing…

View Details
Posted 2025-10-31

Printing Press Operator

Pioneer Desert Manufacturing
Fairfield, CA

Set up, run and maintain offset, flexographic or digital printing presses to meet color, registration and production specifications. Key responsibilities Mix inks, install plates/cylinders and lo…

View Details
Posted 2025-09-01

Senior Product Manager - Treasury Platform and Product Architecture

Visa
Foster, CA

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and govern…

View Details
Posted 2025-10-01

Product Manager - UMA

Lightspark
Culver City, CA

The Internet lacks a protocol for money. Lightspark is building the tools and services to make it happen. Lightspark builds enterprise-ready infrastructure for open payments for the Internet at scale…

View Details
Posted 2025-09-14

Fullstack AI Engineer

Freed
San Francisco, CA

ABOUT FREED Doctors are overworked, burnt out, and are quitting in masses. At Freed, we combine clinician love with the latest AI tech and intense execution to create products that make clinician…

View Details
Posted 2025-09-22

Staff Software Engineer

Visa
Foster, CA

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and govern…

View Details
Posted 2025-09-22