Toolmill Briefswhat companies are building, read from their hiring

Company brief · updated 2026-10-19

Sieve

sievedata.com · B2B · High-quality video, audio, image, and interaction data for frontier AI.

16open roles
6new in 30 days
2closed in 30 days
2remote-eligible
steadyhiring velocity

What they're building

Field and industrial data capture for Physical AI strong signal

Today: Capturing multimodal data across real-world, digital and simulated environments

Roles: International Field Operations Lead · Strategic Partnerships & Ops Lead, Physical AI

Requirements mention: on-the-ground operations · hire and manage people · footage recording · Language skills · physical AI · human-in-the-loop data operations

Inference: Sieve is expanding its own real-world capture. The postings describe field teams abroad that record footage, and partnerships that open factories and manufacturing lines for Physical AI training data. Both roles opened 2026-10-05 in San Francisco.

Human-in-the-loop data operations platform moderate signal

Today: Dense labels, annotations and human QA at scale

Roles: Product Operations Lead · Strategic Partnerships & Ops Lead, Physical AI

Requirements mention: human-in-the-loop data operations · workforce management · task assignment · QA processes · annotation pipelines · data ops platform

Inference: Sieve is building out the workforce, task assignment and QA tooling behind its labeling work. Both roles list the same data-operations requirements.

Contributor and expert sourcing moderate signal

Today: Sourcing video and human data from contributors

Roles: Member of Technical Staff, Product · Growth Associate · Product Operations Lead

Requirements mention: video collection platform · media capture · upload flows · expert network recruiting · US-facing recruiting · user acquisition · sourcing campaigns

Inference: Sieve is growing the supply side of its data, meaning paid video contributors (the posting describes a platform that pays contributors for recordings) and a US-facing expert network recruited through outbound.

Data pipelines and dataset quality engineering strong signal

Today: Filtering, indexing and packaging video and multimodal datasets

Roles: Member of Technical Staff, Forward Deployed · Member of Technical Staff · Member of Technical Staff, Machine Learning

Requirements mention: exabyte-scale data infrastructure · large-scale data pipelines · dataset quality · production ML pipelines · filtering, ranking, retrieval, and labeling systems

Inference: Sieve is adding engineering capacity for the systems that filter, label and evaluate video datasets at scale. The three Engineering roles opened 2025-09-02, 2026-05-14 and 2026-07-13.

Applied research on how data shapes models weak signal

Today: Training data for frontier video and audio-visual AI

Roles: Member of Technical Staff, Applied Research

Requirements mention: post-training · supervised fine-tuning · preference optimization · reproducible training and evaluation pipelines

No inference: a single role opened 2026-09-14. The posting says it trains and evaluates multimodal models to understand how data shapes their capabilities in video generation and audiovisual understanding.

Customer scoping and partnerships with model builders moderate signal

Today: Custom datasets for AI research teams

Roles: Business Development · Research & Product Lead

Requirements mention: strategic business development · partnerships · human data · RL environments · technical scoping · proposal development · demos · customer data pipelines

Inference: Sieve is staffing the customer-facing work of scoping and selling custom data to teams building foundation models, including human data, RL environments and evaluations.

Where the headcount is going

DepartmentOpen
Engineering7
Business Operations4
Product4
GTM1

13 open roles: Engineering 5, Product 4, Business Operations 3, GTM 1. The Product roles are mostly data-operations jobs (field capture, workforce, QA) rather than software, so the hiring leans toward running data collection as much as building pipelines. 11 roles are in San Francisco; 3 opened and 2 closed in the last 30 days.

Who they need

Seniority: 5 senior, 4 mid, 1 junior, 3 unknown.

Skills named most: Python, PyTorch, exabyte-scale data infrastructure, ML data pipelines, data tooling, QA workflows, human-in-the-loop data operations, Go, post-training, Sales Navigator, Apollo, Clay

Locations: San Francisco (11 roles, not remote); Anywhere (1 role, remote, Business Operations); India (1 role, remote, Business Operations).

How to use this

If you're applying: If you work in data operations, look at the Product roles; if you build data pipelines or ML systems, look at the Engineering roles. Check the fit lines first: 11 of 13 roles are in San Francisco and not remote, and only the Operations Associate (Anywhere) and the Growth Associate (India) are remote.

If you're selling or recruiting: Sieve is staffing field and industrial data capture, labeling workforce and QA, contributor and expert sourcing, and dataset pipeline engineering. Vendors of annotation workforce, field logistics, recruiting and outbound tooling, or large-scale data infrastructure have the clearest fit. The Business Development and Research & Product Lead roles show customer-facing work with foundation model teams.

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Open roles (16)

TitleDepartmentLocationPosted
Member of Technical Staff, Robotics ResearchEngineeringSan Francisco2026-10-23
Roboticist, Physical AIEngineeringSan Francisco2026-10-23
Country Launch Ops LeadBusiness OperationsShenzhen2026-10-19
Operations AssociateBusiness OperationsAnywhere (remote)2026-10-15
International Field Operations LeadProductSan Francisco2026-10-05
Strategic Partnerships & Ops Lead, Physical AIProductSan Francisco2026-10-05
Member of Technical Staff, Applied ResearchEngineeringSan Francisco2026-09-14
Business OperationsBusiness OperationsSan Francisco2026-09-14
Business DevelopmentGTMSan Francisco2026-09-01
Growth AssociateBusiness OperationsIndia (remote)2026-07-28
Member of Technical Staff, Machine LearningEngineeringSan Francisco2026-07-13
Member of Technical Staff, Forward DeployedEngineeringSan Francisco2026-05-14
Product Operations LeadProductSan Francisco2026-03-11
Member of Technical Staff, ProductEngineeringSan Francisco2026-01-27
Research & Product LeadProductSan Francisco2025-09-24
Member of Technical StaffEngineeringSan Francisco2025-09-02