Hiring.Camp

Systems Security Engineer

RFS Group

·

Feb 27, 2026

Salary
$150k – $160k
Workplace
Remote, Onsite
Type
Full-time
Department
Engineering
Experience
6+ years
Visa
Not sponsored
Clearance
Not required
Source
RecruiterFlow

Description

Who is Recruiting from Scratch: Recruiting from Scratch is a specialized talent firm dedicated to helping companies build exceptional teams. We partner closely with our clients to deeply understand their needs, then connect them with top-tier candidates who are not only highly skilled but also the right fit for the company’s culture and vision. Our mission is simple: place the best people in the right roles to drive long-term success for both clients and candidates.https://www.recruitingfromscratch.com/

Systems Security Engineer

Location: Phoenix, AZ
Company Stage of Funding: Early-Stage / Defense Technology Startup
Office Type: Onsite, Full-Time
Salary: Competitive (based on experience)
Security Clearance: Ability to obtain U.S. Secret clearance required


1. Company Description

We’re representing a defense technology company building autonomous swarm systems designed for demanding national security environments. Their fleet of autonomous unmanned ground vehicles operates across embedded, edge, and cloud environments, combining GPU-accelerated computing, secure communications, and distributed fleet management infrastructure.

The company is scaling rapidly and building its security posture from first principles. Security is not an afterthought — it is core to the product. This role will sit at the center of ensuring resilience, compliance, and mission readiness across embedded platforms, vehicle-to-cloud communications, and cloud-hosted services.


2. What You Will Do

As a Systems Security Engineer, you will own and execute the company’s end-to-end security strategy across embedded systems, cloud infrastructure, and compliance programs. This is a hands-on individual contributor role with full ownership of technical security architecture and operational execution.

You will:

  • Design and implement secure system architectures across embedded platforms, GPU-accelerated systems, and cloud-hosted services.

  • Architect and enforce cloud security controls (IAM, network segmentation, encryption, multi-tenancy, and zero-trust patterns).

  • Secure embedded systems including secure boot, trusted execution environments, firmware security, key management, and hardware security modules.

  • Protect heterogeneous CPU/GPU systems (e.g., NVIDIA Jetson-class platforms).

  • Secure vehicle-to-cloud communications and distributed system protocols.

  • Conduct threat modeling, vulnerability analysis, and system-level security assessments.

  • Implement continuous monitoring, vulnerability tracking, and remediation processes.

  • Lead compliance and accreditation activities, including preparation of documentation for Authority to Operate (ATO).

  • Align systems with federal cybersecurity frameworks such as NIST, FISMA, and CMMC.

  • Brief security architectures and compliance status to government stakeholders and leadership.

  • Coordinate security incident response activities.

  • Establish internal security policies and scalable monitoring processes as the company grows.

This role requires building systems and processes from scratch in a fast-paced startup environment where execution and ownership are critical.


3. Ideal Background

The ideal candidate is a technically deep security engineer who thrives in complex cyber-physical systems and defense environments.

  • 6+ years of experience in systems security engineering or cybersecurity.

  • Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Cybersecurity, or related field.

  • Experience securing complex embedded systems, including firmware, hardware security modules, and key management.

  • Experience designing security architectures for cloud platforms (AWS, Azure, or GCP).

  • Strong network security fundamentals (firewalls, VPNs, TLS/mTLS, secure communications, zero-trust models).

  • Experience securing distributed systems and vehicle-to-cloud communication pipelines.

  • Experience conducting vulnerability analysis and system-level security assessments.

  • Experience supporting compliance and accreditation processes, including ATO preparation.

  • Working knowledge of federal cybersecurity frameworks (NIST, FISMA, CMMC, etc.).

  • Ability to obtain and maintain a U.S. Secret security clearance.

  • Strong communication skills and ability to operate as the primary security owner.

  • Comfortable working onsite in Phoenix, AZ.


4. Preferred

  • Experience serving as the primary security engineer at an early-stage hardware, robotics, or defense company.

  • Background in autonomous systems, robotics, aerospace, or cyber-physical platforms.

  • Active U.S. TS/SCI clearance.

  • Strong programming experience in C++ and Python.

  • Experience securing GPU environments (CUDA, TensorRT).

  • Experience with penetration testing or red teaming for embedded systems.

  • Experience with container security, infrastructure-as-code scanning, secrets management, and SIEM/SOAR tooling.

  • Familiarity with ROS or robotics software stacks.

  • Experience with supply chain risk management and system-level testing processes.


5. Compensation and Benefits

  • Compensation: Competitive salary based on experience.

  • Work Model: Full-time, onsite in Phoenix, AZ.

  • Clearance: Ability to obtain and maintain U.S. Secret clearance required (active clearance not required at hire).

  • Impact: Direct ownership of the security posture of autonomous systems deployed in national security environments.

  • Growth: Opportunity to architect and scale security from the ground up in a high-impact defense startup.

Mission Alignment:

This role is ideal for engineers motivated by contributing to the defense of the United States and its allies.

Equal Opportunity:

The company is committed to equal employment opportunity and complies with all applicable federal, state, and local employment laws.

Salary Range: $150,000-160,000 base. https://www.recruitingfromscratch.com/

Skills

PythonAWSAzureGCPCybersecurityPenetration TestingSIEMRisk ManagementCompliance

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Remote Systems Security Engineer at RFS Group • $150k – $160k | Hiring.Camp