Senior Engineer, Aircraft Security

Job Summary

Our client, a leading travel & hospitality provider, is looking for a Senior Engineer, Aircraft Security to join their Cybersecurity organization, contract (renewable), onsite 3 days/week in Fort Worth Texas. This role backfills a departing senior engineer and owns detection engineering, remediation lifecycle, and PKI engineering for aircraft/connected-system security. The team operates with high autonomy and minimal day-to-day direction, so the right candidate is a self-directed senior engineer who scopes and drives their own work rather than someone who works off an assigned queue or ticket rotation. This is explicitly not a SOC/alert-queue role.

Core Responsibilities

• Engineer and continuously improve detection content and analytics in Microsoft Sentinel/SIEM across aircraft and connected-system telemetry.
• Author KQL queries and detection rules, build dashboards, and independently investigate security events end-to-end with strong written documentation.
• Own remediation plans from finding to validated closure, including vulnerability/finding tracking.
• Provide PKI engineering depth for aircraft-security certificate use cases, including enrollment protocols (SCEP/EST), trusted-role operations, and certificate lifecycle management for certificate-based authentication and software signing/validation.
• Engineer and operate the Absolute endpoint/device platform (SSO, policy groups, API integrations).
• Apply AI/agentic tooling (e.g., Claude) to accelerate detection, investigation, and remediation work.

Required Skills / Experience (Must-Haves)

• 5+ years in security engineering with demonstrated independent project ownership (not queue-based SOC analyst experience).
• Hands-on PKI engineering depth: SCEP/EST, Certificate Policy/Certification Practice Statement (CP/CPS), trusted roles, Levels of Assurance, NIST SP 800-63, certificate-based authentication and software signing/validation (not just certificate consumption/usage).
• Self-directed detection engineering in Microsoft Sentinel, including KQL/query and rule authoring and dashboard build.
• Remediation lifecycle ownership - tracking findings from discovery to validated closure.

Preferred Skills / Experience (Nice-to-Haves)

• Hands-on AI/agentic security tooling experience (Claude/LLM-assisted code and configuration analysis, prompt engineering for security use cases).
• Absolute endpoint platform engineering (SSO, policy groups, API).
• Scripting/automation in Python or PowerShell.
• Aviation, OT, cyber-physical, or embedded-systems exposure.
• HSM/key-management and code-signing infrastructure experience.

Key Competencies and Behaviors

• Entrepreneurial, self-starting mindset - comfortable with ambiguity and given a goal rather than a task list.
• Connects detection, remediation, and PKI into one coherent security outcome without needing task-to-task management.
• Strong written documentation habits for independent investigations.
• Comfortable operating in a small, high-trust, low-bureaucracy team covering safety-sensitive systems.
• Not a fit for candidates seeking a steady assigned ticket queue or close daily direction.

Work Environment

Location: Onsite 3 days/week - Fort Worth, Texas

Compensation & Benefits

Pay Range: The approximate pay range for this position is between $62/hr and $68/hr. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.

• Medical, Dental, & Vision Insurance Plans.
• Employee-owned Profit Sharing (ESOP).
• 401K offered.

About KellyMitchell

At KellyMitchell, our culture is world class. We're movers and shakers! We don't mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment's notice.