Remote research engineer jobs in California

Research Engineer – RL Infrastructure

🕒 October 19

🕒 October 19

Prime Intellect

1 - 10

🤖 Artificial Intelligence

☁️ SaaS

Research Engineer optimizing distributed RL training infrastructure for Prime Intellect’s open superintelligence platform. Improving GPU performance, scaling, and post-training systems.

🏄 California – Remote

🏄 California – Remote

💵 $150k - $350k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Research Engineer / Scientist – Reinforcement Learning

🕒 October 16

🕒 October 16

Prime Intellect

1 - 10

🤖 Artificial Intelligence

☁️ SaaS

Research Engineer/Scientist developing reinforcement-learning algorithms and systems. Building Prime Intellect’s open frontier-AI platform for reasoning, coding, and long-horizon tasks.

🏄 California – Remote

🏄 California – Remote

💵 $150k - $350k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Research Engineer – Pretraining Data

🕒 October 16

🕒 October 16

Prime Intellect

1 - 10

🤖 Artificial Intelligence

☁️ SaaS

Research Engineer building training-ready corpora and data pipelines for Prime Intellect’s open AI platform. Testing data quality, mixtures, and evaluations for frontier model capabilities.

🏄 California – Remote

🏄 California – Remote

💵 $150k - $350k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Applied Research Engineer

🕒 September 29

🕒 September 29

Higharc

11 - 50

🏗️ Construction

💼 Consulting

🏠 Real Estate

Applied Research Engineer shipping spatial AI models into Higharc’s home-design and construction platform. Building APIs, evaluation pipelines, and production ML capabilities.

🏄 California, New York – Remote

🏄 California – Remote 🗽 New York – Remote

💰 $21M Series A on 2021-04

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Deep Learning Research Engineer Intern

🕒 September 28

🕒 September 28

DataRobot

501 - 1000

💼 Consulting

🏥 Healthcare

🏭 Manufacturing

Deep Learning Research Engineer Intern building probabilistic foundation models at DataRobot. Implementing and evaluating advanced PyTorch architectures for forecasting, tabular, and mixed-modality AI.

🏄 California, Massachusetts, +1 more states – Remote

🏄 California – Remote 🍂 Massachusetts – Remote ☕ Washington – Remote

⏰ Full Time

⚪️ Entry-level

📚 Research Engineer

🚫👨‍🎓 No degree required

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

AI Innovation Engineer

Job not on LinkedIn

🕒 September 25

🕒 September 25

Job not on LinkedIn

829 Studios

201 - 500

📣 Marketing

🤝 B2B

🤖 Artificial Intelligence

AI Innovation Engineer building Python agentic workflows, MCP integrations, and AI tools for 829 Studios, a Boston-based digital marketing agency. Driving adoption across marketing operations.

🌵 Arizona, California, +25 more states – Remote

🌵 Arizona – Remote 🏄 California – Remote ⛰️ Colorado – Remote 🦌 Connecticut – Remote 🐊 Florida – Remote 🥔 Idaho – Remote 🌽 Illinois – Remote 🐎 Kentucky – Remote 🦞 Maine – Remote 🎰 Nevada – Remote 🗻 New Hampshire – Remote 🏖️ New Jersey – Remote 🗽 New York – Remote 🌲 North Carolina – Remote 🏈 Ohio – Remote 🌪️ Oklahoma – Remote 🦀 Maryland – Remote 🍂 Massachusetts – Remote 🚗 Michigan – Remote 🏰 Missouri – Remote 🔔 Pennsylvania – Remote ⚓ Rhode Island – Remote 🌴 South Carolina – Remote 🎸 Tennessee – Remote 🤠 Texas – Remote ⛷️ Utah – Remote ⚔️ Virginia – Remote

💵 $110k - $135k / year

💰 Series unknown on 2021-09

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Research Engineer, QC Automation

Job not on LinkedIn

🕒 September 23

🕒 September 23

Job not on LinkedIn

hud (YC W25)

1 - 10

🤖 Artificial Intelligence

☁️ SaaS

🤝 B2B

Research Engineer building automated quality-control systems for HUD’s frontier AI training-data infrastructure. Designing benchmarks, validation pipelines, and metrics to improve agent evaluations and vendor data quality.

🏄 California – Remote

🏄 California – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Research Engineer, Privacy and Anonymization

Job not on LinkedIn

🕒 September 23

🕒 September 23

Job not on LinkedIn

hud (YC W25)

1 - 10

🤖 Artificial Intelligence

☁️ SaaS

🤝 B2B

Research Engineer building PII detection and anonymization systems for HUD’s frontier-AI training data and evaluation platform. Developing privacy safeguards that preserve data utility for AI agents.

🌐 United States, Singapore – Remote

🇺🇸 United States – Remote 🇸🇬 Singapore – Remote

🏄 California – Remote

🏄 California – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

Senior Security Research Engineer

🕒 August 7

🕒 August 7

Sony Interactive Entertainment

10,000+ employees

🎮 Gaming

🔧 Hardware

📡 Telecommunications

Senior Security Research Engineer advancing threat exposure management for PlayStation. Leading vulnerability research, validation, prioritization, and remediation across Sony’s technology environments.

🏄 California – Remote

🏄 California – Remote

💵 $175.5k - $263.3k / year

⏰ Full Time

🟠 Senior

📚 Research Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

Senior Research Engineer – Enterprise Products

🕒 July 11

🕒 July 11

NVIDIA

10,000+ employees

🏥 Healthcare

🏭 Manufacturing

🤖 Artificial Intelligence

Senior Research Engineer designing and evaluating routing policies for AI inference at NVIDIA. Collaborating with engineering teams to integrate software across NVIDIA's serving stack.

🏄 California, Washington – Remote

🏄 California – Remote ☕ Washington – Remote

💵 $192k - $356.5k / year

⏰ Full Time

🟠 Senior

📚 Research Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

Research Engineer – Machine Learning Systems

🕒 March 14

🕒 March 14

Deepgram

51 - 200

💼 Consulting

🏥 Healthcare

📦 Logistics

Machine Learning Engineer at Deepgram prototyping novel modeling ideas to build scalable speech technologies. Collaborate with researchers to develop world-class speech recognition and synthesis systems.

🏄 California, Michigan – Remote

🏄 California – Remote 🚗 Michigan – Remote

💵 $150k - $250k / year

💰 $47M Series B on 2022-11

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

Research Engineer – Reinforcement Learning

🕒 2 days ago

🕒 2 days ago

Harvey

11 - 50

🤖 Artificial Intelligence

⚖️ Legal

🏢 Enterprise

Research Engineer improving reinforcement-learning and post-training methods for Harvey’s legal AI models. Building reward systems, evaluations, and scalable training runs for customer-facing products.

🇺🇸 United States – Remote

💵 $230k - $450k / year

💰 $80.6G Series B on 2023-12

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 21%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Senior Research Engineer, Generative 3D

🕒 3 days ago

🕒 3 days ago

MimoLabs

2 - 10

🤖 Artificial Intelligence

☁️ SaaS

🏭 Manufacturing

Senior Research Engineer building generative 3D models for MimoLabs’ AI manufacturing platform. Developing physics-aware CAD generation and production-ready training pipelines.

🇺🇸 United States – Remote

💵 $170k - $220k / year

⏰ Full Time

🟠 Senior

📚 Research Engineer

👻 Ghost score 0%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Research Engineer

Job not on LinkedIn

🕒 October 21

🕒 October 21

Job not on LinkedIn

SandboxAQ

51 - 200

🤖 Artificial Intelligence

🔒 Cybersecurity

💊 Pharmaceuticals

Research Engineer building secure, collaborative agentic AI capabilities at SandboxAQ. Shipping production software for monitoring, guardrails, evaluation, and AI security.

🇺🇸 United States – Remote

💵 $122k - $228k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

👻 Ghost score 0%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Research Engineer – Post-Training

🕒 October 19

🕒 October 19

Deepgram

51 - 200

💼 Consulting

🏥 Healthcare

📦 Logistics

Research Engineer improving Deepgram’s speech-to-text, text-to-speech, and voice-agent models. Turning customer problems into evaluated, fine-tuned systems shipped to production.

🇺🇸 United States – Remote

💵 $150k - $250k / year

💰 $47M Series B on 2022-11

⏰ Full Time

🟡 Mid-level

🟠 Senior

📚 Research Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 18%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Staff Research Engineer – RRI Harness

Job not on LinkedIn

🕒 October 9

🕒 October 9

Job not on LinkedIn

Sequen

11 - 50

☁️ SaaS

🤖 Artificial Intelligence

🤝 B2B

Staff Research Engineer owning Sequen’s Python runtime for autonomous AI research agents. Building resilient infrastructure, evaluation systems, and observability for production ranking intelligence.

🇺🇸 United States – Remote

💵 $300k - $350k / year

⏰ Full Time

🔴 Lead

📚 Research Engineer

👻 Ghost score 24%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Staff Research Engineer – Recursive Self-Improvement Lead

Job not on LinkedIn

🕒 October 9

🕒 October 9

Job not on LinkedIn

Sequen

11 - 50

☁️ SaaS

🤖 Artificial Intelligence

🤝 B2B

Staff+ Research Engineer advancing Sequen’s autonomous ranking intelligence engine through recursive self-improvement. Setting research direction, running experiments, and shipping production improvements for major retailers and platforms.

🇺🇸 United States – Remote

💵 $350k - $400k / year

⏰ Full Time

🟠 Senior

📚 Research Engineer

👻 Ghost score 24%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Staff Machine Learning, Operations Research Engineer

🕒 October 8

🕒 October 8

Burq

11 - 50

🍽️ Food & Beverage

🏥 Healthcare

🏗️ Construction

Staff ML/OR engineer building ML-assisted dispatch, pricing, forecasting, and routing systems for Burq's logistics platform. Owning optimization architecture and production models with company-level impact.

🌐 United States, Canada – Remote

🇺🇸 United States – Remote 🇨🇦 Canada – Remote

💰 Pre Seed Round on 2021-06

⏰ Full Time

🔴 Lead

📚 Research Engineer

👻 Ghost score 20%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Data & Artificial Intelligence Research Engineer, L4

Job not on LinkedIn

🕒 October 3

🕒 October 3

Job not on LinkedIn

Citrine Informatics

51 - 200

💼 Consulting

🏭 Manufacturing

🍽️ Food & Beverage

Data and AI Research Engineer building materials-aware machine learning for Citrine Informatics’ sustainable materials and chemicals SaaS platform. Developing scalable models, Python libraries, and AI capabilities for industrial customers.

🇺🇸 United States – Remote

💵 $182k - $210k / year

💰 $12.6M Venture Round on 2022-11

⏰ Full Time

🟠 Senior

🔴 Lead

📚 Research Engineer

👻 Ghost score 0%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.