Stealth Startup

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stealthstartup.com

Stealth Startup

stealthstartup.com

HQUS

Team Size449

Open Jobs34

Total Funding-

Latest FundraiseUnknown

TL;DR

Company: Stealth Startup

Employee count (reported): 449

Funding rounds (recorded): 1 (Convertible Note)

Reported investor: XRC Ventures

Company Overview

Funding Track Record

Convertible Note

Crunchbase records one convertible note round; dates and amounts are obfuscated in available sources.

Investor Signal

“XRC Ventures reported as a funder”

Founders

Join the Team

AI Researcher - LLMs [32814]

RemoteCalifornia, US

Remote • California, US

About the Role

We are seeking an exceptional Lead Researcher to lead and scale a world-class AI research organization focused on advancing the state of the art in machine learning, large language models, and applied AI systems. This role is both strategic and hands-on , responsible for defining long-term research vision while actively contributing to breakthrough innovations that directly impact product and business outcomes.

As Head of Research, you will build, mentor, and manage a high-caliber team of researchers and research engineers, partner closely with executive leadership, and translate cutting-edge research into scalable, real-world systems.

Key Responsibilities

Startup jobs. A lot of them.

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Define and own the research vision and roadmap , aligned with company strategy and long-term goals

Lead and grow a team of AI Researchers, Applied Scientists, and Research Engineers

Drive innovation across areas such as:

Large Language Models (LLMs)

Reasoning and planning systems

Representation learning

Robustness, safety, and evaluation

Multimodal and agent-based systems

Balance long-horizon exploratory research with near-term applied research that powers products

Ensure research excellence through strong scientific rigor, reproducibility, and evaluation standards

Collaborate with Product, Engineering, and Leadership to transition research into production

Represent the company externally through publications, conferences, and industry engagement

Establish best practices for research processes, tooling, and infrastructure

Mentor senior researchers and develop future research leaders

Required Qualifications

PhD in Computer Science, Machine Learning, AI, or a closely related field (or equivalent research experience)
0-7 years of experience in AI/ML research, with at least several years in a research role
Proven track record of high-impact research contributions (top-tier conferences, journals, or widely adopted systems)
Deep expertise in modern ML techniques, especially LLMs, deep learning, and foundation models
Experience leading and scaling research teams in industry or advanced research labs
Strong understanding of the tradeoffs between research innovation and production constraints
Ability to communicate complex technical ideas clearly to both technical and non-technical stakeholders

Preferred Qualifications

Experience leading research at a top AI lab, FAANG company, or well-known AI startup
Publications at leading venues (e.g., NeurIPS, ICML, ICLR, ACL, EMNLP)
Experience with model training at scale, including distributed systems and ML infrastructure
Background in deploying research models into real-world products
Prior experience influencing company-level technical strategy

Base salary up to $500,000 , plus competitive equity
Opportunity to shape the future direction of cutting-edge AI research
Access to significant compute and research resources
Collaboration with elite engineers, researchers, and product leaders
A culture that values deep thinking, experimentation, and long-term impact

Stealth Startup

Stealth Startup

TL;DR

Company Overview

Company Overview

Funding Track Record

Investor Signal

Founders

What we do

Join the Team

AI Researcher - LLMs [32814]

Startup jobs. A lot of them.

Software Engineer

Data Scientist

Mobile Developer

Frontend Developer

Technical Writer

Machine Learning Engineer

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