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Liquid AI · 1 week ago

Member of Technical Staff - ML Research Engineer, Data

San Francisco, CA

Full-time

Hybrid

Senior Level

5+ years exp

Liquid AI is a company spun out of MIT CSAIL that builds AI systems for various industries. They are seeking a Member of Technical Staff to build and maintain data pipelines for their foundation models, focusing on data quality and independent problem-solving.

Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning

H1B Sponsor Likely

Responsibilities

Build and maintain data processing, cleaning, filtering, and selection pipelines at scale

Create and maintain pipelines for pretraining, midtraining, SFT, and preference optimization datasets

Monitor and evaluate public datasets across text, vision, and audio domains

Create synthetic data generation and augmentation pipelines

Build crawlers to gather datasets from the web where public data is lacking

Run ablations to assess dataset quality and inform training decisions

Collaborate with pre-training, vision, and audio teams on modality-specific data needs

Qualification

Data pipeline developmentData quality managementPythonData curationML frameworks (PyTorch)Synthetic data generationStaying current with datasetsProblem-solvingCollaboration

Required

5+ years of relevant work experience with a B.S., 3+ years with an M.S., or 1+ year with a Ph.D

Expertise in data curation, cleaning, augmentation, and synthetic data generation

Experience with LLMs and ML frameworks (PyTorch)

Strong Python skills with emphasis on clean, scalable code

Builds production data pipelines: Our team processes web-scale dataset with trillions of tokens

Understands data quality: Filtering, deduplication, augmentation, bias detection, and synthetic generation

Stays current: Public datasets drop constantly. You watch HuggingFace, arXiv, and know when something matters

Solve problems independently to power the team

Preferred

Experience with VLMs, computer vision, or audio data pipelines

Distributed training familiarity (DeepSpeed, FSDP, Megatron-LM)

First-author publications in top ML conferences (NeurIPS, ICML, ICLR, CVPR)

Contributions to open-source projects

Benefits

We pay 100% of medical, dental, and vision premiums for employees and dependents

401(k) matching up to 4% of base pay

Unlimited PTO plus company-wide Refill Days throughout the year

Company

Liquid AI

Build efficient general-purpose AI at every scale.

Founded in 2023

Cambridge, Massachusetts, USA

51-200 employees

http://liquid.ai

H1B Sponsorship

Liquid AI has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (2)

Funding

Current Stage

Growth Stage

Total Funding

$293.1M

Key Investors

AMD VenturesOSS Capital L.P.

2024-12-13Series A· $250M

2023-12-01Seed· $37.5M

2023-05-05Seed· $5.6M

Leadership Team

Ramin Hasani

Co-founder and CEO

Mathias Lechner

Co-founder and CTO

Recent News

IEEE Spectrum

MIT’s AI Robotics Lab Director Is Building People-Centered Robots

2025-12-06

Digital Commerce 360

Shopify partners with Liquid AI on product search, recommendations

2025-11-15

Liquid AI

Liquid AI Announces Multi‑Year Partnership with Shopify to Bring Sub‑20ms Foundation Models to Core Commerce Experiences

2025-11-14

Company data provided by crunchbase