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.
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 the hires you make will help define the future of multimodal models.
About the RoleAs a Full-Cycle Technical Recruiter, you'll own recruiting for engineering and product roles across Sieve. You'll source technical candidates via LinkedIn and web-based sourcing, run screening calls, manage our Ashby pipeline, coordinate interviews, and close offers. This isn't a back-office role - you'll work directly with hiring managers to understand what we need, own the candidate experience end-to-end, and build the processes and templates that make recruiting scalable as we grow.
RequirementsThis role requires you to be in-person 5 days a week
3+ years of technical sourcing or recruiting experience (engineering focus)
Elite Ashby experience - you know the platform inside out and can optimize workflows, manage integrations, and pull reporting
Strong technical sourcing skills - you can find engineers on LinkedIn/GitHub/the web and know how to assess technical fit quickly
Ability to screen technical candidates and provide meaningful feedback to hiring managers
Clear, direct communication - both with candidates and internal stakeholders
Ownership mindset - bias towards action, you see what needs to happen and do it
Comfort with ambiguity and rapid context-switching in a fast-growing startup
Direct hiring experience for MLEs and/or Forward Deployed Engineers
Early hire at a startup (understands the challenge of scaling from 5 → 50 people)
Exploring AI as an accelerant for sourcing, screening, and/or recruiting ops
401k + Full Health Insurance
Breakfast, Lunch, and Dinner covered and your choice of snacks
Ubers covered home
Open to candidates who are strong technical sourcers willing to grow into full-cycle
Skills Required
- In-person 5 days a week
- 3+ years of technical sourcing or recruiting experience (engineering focus)
- Elite Ashby experience (optimize workflows, manage integrations, pull reporting)
- Strong technical sourcing skills (LinkedIn, GitHub, web)
- Ability to screen technical candidates and provide meaningful feedback to hiring managers
- Clear, direct communication with candidates and internal stakeholders
- Ownership mindset and bias toward action
- Comfort with ambiguity and rapid context-switching in a fast-growing startup
- Direct hiring experience for MLEs and/or Forward Deployed Engineers
- Early hire/startup scaling experience (hiring 5 -> 50)
- Experience exploring AI for sourcing, screening, or recruiting operations
What We Do
Sieve is the only AI research lab exclusively focused on video data. Video already makes up 80% of internet traffic and has become the dominant medium driving creativity, communication, gaming, AR/VR, and robotics. Unlocking the ability to truly model video is the key to breakthroughs across all of these domains but progress has been bottlenecked by one thing: high-quality training data. That’s where Sieve comes in. We bring together exabyte-scale video infrastructure, novel video understanding techniques, and dozens of diverse data sources to create datasets that push the frontier of video modeling. This unique combination allows us to deliver data with unmatched precision, quality, and speed which has earned the trust of frontier AI labs, Fortune 100 companies, and fast-growing generative AI startups.
