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greenhouse

Principal macOS Security Researcher

Huntress
Remote, USA
Senior
Remote
Discovered 1 weeks ago
elasticsearchkibanapythonrubyswift

Full Job Posting

What We Offer:

  • 100% remote work environment - since our founding in 2015
  • Generous paid time off policy, including vacation, sick time, and paid holidays
  • 12 weeks of paid parental leave
  • Highly competitive and comprehensive medical, dental, and vision benefits plans
  • 401(k) with a 5% contribution regardless of employee contribution
  • Life and Disability insurance plans
  • Stock options for all full-time employees
  • One-time $500 reimbursement for building/upgrading home office
  • Annual allowance for education and professional development assistance
  • $75 USD/month digital reimbursement
  • Access to the BetterUp platform for coaching, personal, and professional growth
  • Huntress is committed to creating a culture of inclusivity where every single member of our team is valued, has a voice, and is empowered to come to work every day just as they are.
  • We do not discriminate based on race, ethnicity, color, ancestry, national origin, religion, sex, sexual orientation, gender identity, disability, veteran status, genetic information, marital status, or any other legally protected status.
  • We do discriminate against hackers who try to exploit businesses of all sizes.
  • Accommodations:
  • If you require reasonable accommodation to complete this application, interview, or pre-employment testing or participate in the employee selection process, please direct your inquiries to [email protected]. Please note that non-accommodation requests to this inbox will not receive a response.
  • Huntress uses artificial intelligence tools to assist in reviewing and evaluating job applications, including resume screening, skills assessment, and candidate matching and comparisons. These AI tools support our human recruiters in the initial review process, but do not make final hiring decisions without human involvement. By submitting your application, you acknowledge this use of AI in our recruitment process. Please review our Candidate Privacy Notice for more details on our practices and your data privacy rights.
  • #BI-Remote

Qualifications

  • Deep expertise in macOS system internals, including the security model, code signing and notarization, TCC, SIP, persistence, and the Mach-O file format
  • Hands-on experience with Apple's Endpoint Security API and system extension development
  • Authority on macOS security threats, attack techniques, and the current macOS malware landscape
  • Familiarity with macOS fleet management (MDM, configuration profiles, mobileconfig deployment)
  • Experience red teaming and performing attack emulation to bypass EDR on macOS
  • Experience with the MITRE ATT&CK matrix, Sigma, YARA, and Elasticsearch/Kibana
  • Track record of building POCs and carrying research from concept through to a shipped product capability
  • Experience leading data requirements work and tying it to cost/benefit analysis on collecting and storing only high-value telemetry
  • Commitment to clear written documentation of research findings
  • Comfortable reading Apple developer documentation, framework headers, and API references to answer undocumented questions

Preferred Qualifications

  • Proficiency with Swift. Additional understanding of Go, Python, and/or Ruby is preferred.
  • An understanding of how SMBs utilize IT automation tools such as PSAs and RMMs is strongly preferred
  • Bonus: Comfortable reverse engineering Mach-O binaries and scripted payloads using debuggers and a disassembler suite (Binary Ninja, IDA Pro, Hopper, or Ghidra)

Responsibilities

  • Lead product research initiatives that develop and evaluate macOS security product strategies and technologies
  • Identify and prototype new telemetry from Apple's Endpoint Security API and other macOS subsystems to expand prevention, hardening, and detection capabilities
  • Reproduce and analyze macOS attacks through hands-on execution of attacker techniques, malware detonation, and vulnerability exploitation
  • Reverse engineer macOS malware and Apple's own security frameworks (XProtect, XProtect Remediator, Gatekeeper, TCC) to identify coverage gaps and inform product direction
  • Prototype and test new tools and methodologies for offensive operations against macOS endpoints, including EDR evasion and bypass research
  • Build proof-of-concept implementations that demonstrate the feasibility of new capabilities
  • Document research findings and collaborate with Detection Engineering on writing and tuning detectors
  • Coordinate with Product and Engineering teams to integrate and operationalize solutions developed by Security teams
  • Stand up ephemeral research environments and attacker infrastructure using cloud, VM, and container technologies
  • Track Apple platform changes across beta and release cycles, and assess their impact on agent capability, telemetry, and detection coverage
  • Identify and address gaps in macOS product coverage, including false positive and false negative investigations
  • Develop internal and external technical documentation to educate customers and adjacent teams on macOS security risks and opportunities
  • Mentor and teach across the team on macOS internals, malware analysis, and research methodology
  • Promote Huntress' reputation through public speaking, CFPs, blogs, and media interaction

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