Full-Time

Senior AI/ML Researcher

Applied Machine Learning

Posted on 10/5/2025

Red Cell Partners

Red Cell Partners

51-200 employees

Incubator for tech-based healthcare and security

Compensation Overview

$175k - $225k/yr

Seattle, WA, USA

In Person

Some travel is required.

Category
AI & Machine Learning (2)
,
Required Skills
Python
Tensorflow
Pytorch
Machine Learning
Requirements
  • Expertise in ML Model Training and Optimization: Proven experience with ML research, including designing and evaluating novel training methodologies, model architectures, and optimization techniques.
  • Deep Knowledge of Language Model Fine-Tuning: Demonstrated proficiency in customizing and fine-tuning language models to meet specific use cases, with experience in models such as GPT, BERT, or similar frameworks.
  • Proficiency in ML Frameworks: Strong understanding of machine learning and NLP frameworks like TensorFlow, PyTorch, or similar, with the ability to design and implement custom model architectures.
  • Programming Skills: Proficiency in Python with an emphasis on writing efficient, maintainable, and scalable code.
  • Research Communication Skills: Ability to present complex technical concepts to both technical and non-technical stakeholders, highlighting the business impact of ML innovations.
  • Educational Background: A Master’s or PhD in Computer Science, Machine Learning, or a related field, with a focus on ML research.
  • Impactful ML Solution Delivery: Proven track record of delivering ML solutions that have made significant real-world impact, ideally within an enterprise or production setting.
Responsibilities
  • Lead ML Research and Development: Drive the research, development, and optimization of machine learning models, focusing on solving real-world business problems through advanced ML techniques.
  • Architect Novel Training and Fine-Tuning Methodologies: Design, implement, and iterate on advanced training protocols, fine-tuning processes, and optimization strategies, particularly for Language Models (LLMs).
  • Evaluate Model Performance and Innovation: Develop and refine techniques for assessing and enhancing the effectiveness of ML models, focusing on accuracy, scalability, and adaptability to dynamic enterprise requirements.
  • Feedback System Design for Continuous Learning: Create systems that incorporate user and system feedback to iteratively improve model performance over time.
  • Cross-Functional Collaboration: Work closely with product teams and domain experts to translate business needs into research questions and actionable ML strategies.
  • Stay Current on ML Advancements: Actively monitor the latest research in ML and NLP, integrating cutting-edge practices and methodologies into our development pipeline.
  • Mentor and Guide Team Members: Provide technical guidance to junior researchers, fostering a culture of continuous learning, experimentation, and research-driven development.

Red Cell Partners is an incubation firm that builds technology-led companies aimed at quickly reaching scale in healthcare and national security. It supports ventures by developing tools and solutions designed to move advanced technologies from concept to market, addressing national priorities. Its approach combines technical development, mentorship, and strategic resources to turn promising ideas into deployable products. Unlike general accelerators, Red Cell focuses on mission-driven, defense-aligned projects with the goal of solving urgent public needs. The company’s objective is to bring practical, impactful innovations to market that strengthen national health and security capabilities.

Company Size

51-200

Company Stage

N/A

Total Funding

$494.5M

Headquarters

New York City, New York

Founded

2020

Simplify Jobs

Simplify's Take

What believers are saying

  • Raised $91M for RCIF I to fund incubations through early-stage rounds.
  • Hired Sean O'Keefe as deputy CTO from Google and Function Health.
  • Opened Incubation Fund II in August 2025 for healthcare and security scaling.

What critics are saying

  • UnitedHealth crushes Crux using Optum's $1B Rally revenue to undercut pricing.
  • AWS reclaims Sridharan, launches agentic platforms starving Trase DoN contracts.
  • Claros obsoletes Trase edge AI via General Catalyst-funded energy tools.

What makes Red Cell Partners unique

  • Red Cell incubates tech-led companies in healthcare, cyber, and national security.
  • Launched Crux in 2024 for affordable QoL medications via employer benefits.
  • Deployed Trase in 2024 for agentic AI in regulated industries like defense.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

Flexible Work Hours

Remote Work Options

Parental Leave

Company News

Axios
Mar 19th, 2026
Claros raises $30M seed to cut data centre energy waste

Claros, a startup developing technology to minimise energy waste at data centres, has closed a $30 million seed round co-led by General Catalyst and Red Cell Partners. Systemiq Capital, Aero X Ventures and Trenches Capital also participated as new and existing investors.

Yahoo Finance
Mar 12th, 2026
Red Cell Partners appoints ex-Google and Function Health veteran Sean O'Keefe as deputy CTO

Red Cell Partners has appointed Sean O'Keefe as Deputy Chief Technology Officer. O'Keefe will oversee technology strategy implementation, daily engineering operations and manage the firm's engineering teams. O'Keefe previously served as Senior Vice President of Engineering at Function Health, where he was the first engineering hire and led development of a secure health data platform and generative AI platform. Earlier in his career, he worked at Google Research as a Senior Software Engineer, leading the TensorFlow Model Remediation Library focused on AI safety and bias mitigation. A former Green Beret in the 10th Special Forces Group, O'Keefe also worked at Bridgewater Associates conducting quantitative research. Red Cell Partners is a venture studio building technology companies in healthcare, cyber and national security sectors.

Evolve Security
Feb 25th, 2026
Evoke Security Raises $4M Pre-Seed Round to Secure the Agentic Workforce - Evoke Security

Evoke empowers organizations to deploy AI with confidence. Our platform surfaces and secures risks at the agentic layer.

Red Cell Partners
Jan 19th, 2026
Valinor | Red Cell Partners

Valinor provides a go-to-market engine for those building products for defense, the broader U.S. Government, and our allies.

PR Newswire
Jan 8th, 2026
Valinor Enterprises: $85 Million Raised to Scale New Operating Model for Defense

/PRNewswire/ -- Valinor Enterprises, an operational holding company for defense and government technology, today announced it has raised $54 million in Series...

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