Hybrid in Burlington, MA

Security & Infrastructure Engineer

MatrixSpace is addressing the next generation of AI-enabled sensing solutions using real-time edge-based sensing to sense, detect, and recognize objects and motion in any situation. MatrixSpace’s ability to combine industry-leading RF sensing, AI edge processing, and RF communication in real-time is a major technology breakthrough with multiple vertical market applications.

We are seeking a Security & Infrastructure Engineer to help build and operate secure, scalable IT and security infrastructure across the company, including a new CMMC-compliant enclave environment supporting government and defense-related initiatives.

This role is ideal for someone who enjoys operating across infrastructure, security, compliance, and end-user systems in a fast-paced engineering-focused environment. You’ll work closely with the Director of IT & Security as an early foundational member of the IT and security team, helping establish secure operational practices and scalable internal systems as the company grows.

Key Responsibilities:

  • Help design, implement, and operate a CMMC-compliant enclave environment, including endpoint management, identity and access controls, logging, monitoring, operational processes, and technical documentation.
  • Support day-to-day IT and security operations across both enclave and commercial environments, including SaaS administration, endpoint management, networking, troubleshooting, vulnerability management, and user support.
  • Assist with compliance and security initiatives including CMMC, NIST 800-171, SOC 2, and related security and governance programs.
  • Participate in security operations workflows including vulnerability remediation, audit preparation, evidence collection, vendor/security reviews, and policy/process development.
  • Manage and support Windows, macOS, and Linux systems across cloud and local environments.
  • Help improve identity and access management practices, endpoint security posture, asset management, and operational visibility across the organization.
  • Collaborate closely with engineering and business teams to balance security, usability, and operational efficiency.
  • Contribute to documentation, standards, and repeatable operational processes that support scaling the organization securely.
  • Assist with onboarding, user lifecycle management, and internal technical support across the company.
  • Domestic travel may occasionally be required.

Required Skills and Experience:

Candidates must be legally authorized to work in the United States without employer sponsorship and may be required to obtain and maintain a U.S. government security clearance in the future.

  • 3–5 years of experience across IT, infrastructure, systems administration, security operations, or related technical roles.

  • Strong hands-on experience supporting corporate IT environments in a small or mid-sized company setting.

  • Working knowledge of networking fundamentals, endpoint management, identity and access management, SaaS administration, and modern security tooling.

  • Experience administering Windows, macOS, and Linux environments.

  • Familiarity with MDM platforms, cloud-based collaboration systems, and endpoint security solutions.

  • Exposure to regulated or compliance-oriented environments such as CMMC, NIST 800-171, NIST 800-53, SOC 2, ISO 27001, or similar frameworks preferred.

  • Strong troubleshooting and problem-solving skills with the ability to operate independently across multiple domains.

  • Comfortable balancing operational support responsibilities with longer-term infrastructure and security projects.

  • Strong written and verbal communication skills with an emphasis on documentation and operational clarity.

  • Ability to work collaboratively in a highly cross-functional and fast-moving environment.

Why Join Us

  • Join a team that thrives on innovation and collaboration.
  • Work on cutting-edge technology bridging embedded systems, cloud computing, and AI applications
  • Collaborate with world-class engineers solving complex distributed systems challenges
  • High ownership, fast iteration, and opportunities to lead architecture and innovation initiatives
  • Competitive equity options, and a culture that values innovation and technical excellence.

Compensation range: $120,000 - $160,000. Actual position within the range will be determined based on experience level of the candidate.

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