Full-Time

Enterprise Security Engineer

Posted on 9/23/2025

Red Cell Partners

Red Cell Partners

51-200 employees

Incubator for tech-based healthcare and security

Compensation Overview

$75k - $125k/yr

+ Equity Incentives

Remote in USA

Remote

Some travel is required.

Category
IT & Security (1)
Requirements
  • Experience in a security or IT administration role with a focus on enterprise security
  • Proven knowledge of securing corporate IT environments, including endpoint security, identity and access management (IAM), and SaaS security
  • Hands-on experience administering and securing enterprise-level platforms like Google Workspace or O365
  • Strong problem-solving skills and the ability to operate independently in a startup environment
  • Excellent communication skills to articulate security concepts to both technical and non-technical stakeholders
  • Familiarity with security frameworks, standards, and regulations (e.g., SOC 2, HIPAA, NIST, CIS, ISO 27001)
Responsibilities
  • Implement and manage security controls for our corporate systems, applications, and information assets
  • Design and maintain secure configurations for our employee endpoints and enforce security best practices
  • Administer and secure corporate user accounts and identities, including managing permissions and access controls
  • Develop and implement IT security policies, procedures, and runbooks
  • Identify and remediate vulnerabilities in our corporate environment, adhering to best practices for data security
  • Monitor internal and external systems for security threats and respond to alerts
  • Identify and investigate security incidents affecting our corporate environment, and conduct post-incident analysis
  • Automate security-related tasks to improve efficiency and scalability
Desired Qualifications
  • Relevant industry or cloud security certifications (e.g., Certified Information System Security Professional (CISSP), Certified Cloud Security Professional (CCSP))
  • Experience with scripting and automation to streamline administrative tasks
  • Experience in protecting and managing macOS workstations
  • Experience deploying and managing endpoint security solutions (e.g. management frameworks, EDR tools)
  • Certifications such as Microsoft 365 Certified: Enterprise Administrator Expert, Google Workspace Administrator, or similar
  • Experience with e-mail security protocols (e.g. SPF, DKIM, DMARC) and controls
  • Experience in a regulated industry (e.g., government, finance, healthcare) with exposure to specific compliance requirements

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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