Senior Security Engineer

Beacon AI
United States
Hybrid

Who this role is best for

Geared toward security professionals comfortable with designing secure architectures in FedRAMP and DoD environments, and who have experience collaborating with software teams on secure system design.

Best fit for

  • Candidates with hands-on experience securing production cloud environments and compliance frameworks like NIST and CMMC
    — “5+ years of hands-on experience in security engineering roles securing complex systems and data, including production cloud environments”
  • Individuals who have led incident response and integrated security into the SDLC
    — “Lead incident response efforts, including detection, containment, remediation, and follow-up analysis”
  • Candidates with direct experience in FedRAMP authorization and DoD Impact Level environments
    — “Direct experience with FedRAMP authorization processes (ATO, SSP, POA&M) and/or DoD Impact Level (IL4/IL5) environments”
  • Professionals who can balance security risk with fast-moving product development
    — “Comfort being an early security owner: setting priorities, building from scratch, and balancing risk against a fast-moving product roadmap”

Things to consider

  • Must be a U.S. Person due to export control regulations, with no visa sponsorship available
    — “Due to U.S. export control regulations, we can only hire U.S. Persons”
  • Requires significant in-office presence in San Carlos, CA with limited remote flexibility
    — “This is a hybrid role based in San Carlos, CA, with 3+ days per week onsite”

How to stand out

  • Highlight experience with AI security, specifically mitigating prompt injection and data leakage
    — “Secure our AI systems, including LLM and retrieval-based features, against risks like prompt injection, data leakage, and model misuse”
  • Emphasize hands-on security engineering experience with cloud environments like AWS GovCloud
    — “production cloud environments (AWS or AWS GovCloud strongly preferred)”
  • Demonstrate familiarity with building security processes from scratch in fast-moving environments
    — “Comfort being an early security owner: setting priorities, building from scratch”
  • Include experience with security frameworks like NIST 800-53 and CMMC 2.0 in your resume
    — “Familiarity with security and compliance frameworks such as NIST 800-53/800-171, ISO 27001, and CMMC”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Designed and implemented secure architectures
  • Led incident response efforts
  • Integrated security into the SDLC
Typical background
5+ years of hands-on experience in security engineeringStrong knowledge of security principles

Skills & requirements

Required

Security EngineeringCloud SecurityFedrampDod Impact LevelSecurity MonitoringIncident ResponseThreat ModelingSecure Code Review

Preferred

AviationAerospaceItar-controlled Environments

Stack & domain

Security EngineeringFedrampDod Impact LevelNIST 800-53NIST 800-171CMMC 2.0DfarsITARAI SystemsLLMRetrieval-based FeaturesPrompt InjectionData LeakageModel MisuseSecurity MonitoringLoggingVulnerability AssessmentsPenetration TestingSecurity ReviewsIncident ResponseThreat ModelingSecure Code ReviewAutomated Security ChecksCI/CDInfrastructure-as-codeEncryptionAccess ManagementSecure Data HandlingSecurity ToolsSIEMIds/ipsVulnerability ScanningSecurity FrameworksISO 27001LeadershipCollaborationProblem-solvingCommunicationAnalytical ThinkingSecurityComplianceAviationDodCMMCAI

About the role

Original posting from Beacon AI via Ashby

ABOUT BEACON AI

We’re a fast-moving team of aviators, engineers, and operators building an AI platform to make flying safer, more efficient, and more capable. Backed by top investors, we’ve secured a dozen Department of Defense contracts and partnered with major airlines to deliver mission-critical systems. We operate without silos or heavy processes. Small, focused teams own what they build, ship quickly, and learn fast, pushing the boundaries of how humans and AI work together in aviation.

ROLE OVERVIEW

We are seeking a Senior Security Engineer to ensure the security and integrity of Beacon AI’s systems and data across commercial and Department of Defense (DoD) environments. This is a hands-on security engineering role focused on designing and operating secure systems, partnering closely with software teams, and protecting mission-critical flight safety technology while meeting applicable security and compliance standards, including FedRAMP and DoD Impact Level (IL) requirements.

WHAT YOU’LL DO

  • Design and implement secure architectures across applications, cloud infrastructure, backend services, and in-cockpit edge systems, including environments built to FedRAMP Moderate baseline and DoD IL4/IL5 environments.
  • Protect sensitive data through strong controls for access management, encryption, and secure data handling, consistent with NIST 800-53 and NIST 800-171 requirements.
  • Identify, assess, and mitigate security risks through vulnerability assessments, penetration testing, and security reviews.
  • Lead incident response efforts, including detection, containment, remediation, and follow-up analysis.
  • Integrate security into the SDLC by partnering with software teams on threat modeling, secure code review, and automated security checks in CI/CD and infrastructure-as-code.
  • Implement and operate security monitoring and logging to detect and respond to threats in real time.
  • Support authorization and compliance efforts (ATO packages, SSPs, POA&Ms) for FedRAMP and DoD accreditation processes.
  • Help maintain CMMC 2.0 readiness and alignment with DFARS cybersecurity clauses across the environment.
  • Secure our AI systems, including LLM and retrieval-based features, against risks like prompt injection, data leakage, and model misuse.

WHAT WILL MAKE YOU SUCCESSFUL

  • 5+ years of hands-on experience in security engineering roles securing complex systems and data, including production cloud environments (AWS or AWS GovCloud strongly preferred)
  • Strong knowledge of security principles, threat modeling, and defensive security practices.
  • Experience with common security tools and technologies (e.g., SIEM, IDS/IPS, vulnerability scanning, encryption).
  • Familiarity with security and compliance frameworks such as NIST 800-53/800-171, ISO 27001, and CMMC.
  • Direct experience with FedRAMP authorization processes (ATO, SSP, POA&M) and/or DoD Impact Level (IL4/IL5) environments.
  • Comfort being an early security owner: setting priorities, building from scratch, and balancing risk against a fast-moving product roadmap.
  • Proven ability to collaborate effectively with software engineers on secure system design.
  • Hands-on mindset with strong analytical and problem-solving skills.

BONUS POINTS

  • Passion for aviation and a desire to improve air travel efficiency and safety.
  • Experience working with aviation, aerospace, or DoD customers, particularly in ITAR-controlled environments.
  • Familiarity with zero trust architectures or advanced security approaches.
  • Experience with StateRAMP, IL5/IL6 systems, or classified/controlled unclassified information (CUI) handling.
  • Experience securing mobile (iOS), embedded, or edge devices operating in disconnected or constrained environments.
  • Relevant security certifications such as CISSP, CISM, or CEH.

Work Location

This is a hybrid role based in San Carlos, CA, with 3+ days per week onsite and the option to work remotely on remaining days.

Perks & Benefits (Full-Time Employees)

  • Healthcare: 100%* of employee medical premiums covered; 25% for dependents
  • Time Off: 3 weeks PTO plus 13+ paid company holidays
  • 401(k): Offered (no current employer match, but we are committed to enhancing this benefit in the future)

Due to U.S. export control regulations, we can only hire U.S. Persons (U.S. citizens, Green Card holders, lawful permanent residents, or individuals granted asylum or refugee status). We are unable to provide visa sponsorship or support visa transfers. All work must be performed in the United States.

Beacon AI is an equal opportunity employer and does not discriminate based on race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, veteran status, or any other protected characteristic. We prohibit harassment or discrimination of any kind in the workplace and comply with all applicable federal, state, and local employment laws.

Source: Beacon AI careers (Ashby)

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