Security & Infrastructure Engineer Hybrid in Burlington, MA

Help build and secure the infrastructure that powers next-generation AI-enabled sensing systems. MatrixSpace develops AI-enabled radar and sensing systems that help people understand what's happening in the world around them. By combining advanced radar, edge computing, and AI, we deliver situational awareness in environments where traditional sensing solutions struggle. We're looking for a hands‑on Security & Infrastructure Engineer to help build and operate secure, scalable IT and security infrastructure, including a new CMMC‑compliant environment supporting government and defense initiatives. You'll work across infrastructure, security, compliance, and end‑user systems while partnering closely with engineering and business teams to help MatrixSpace scale securely. If you're technically curious, proactive, and enjoy solving complex problems, we'd love to talk. THIS IS A HYBRID ROLE BASED IN BURLINGTON, MA. What You'll Do Design, implement, and maintain a CMMC‑compliant enclave, including endpoint management, identity and access controls, monitoring, and documentation. Support IT and security operations across cloud, endpoint, network, and SaaS environments. Administer Windows, macOS, and Linux systems, along with endpoint management and security platforms. Drive vulnerability management, remediation efforts, audit readiness, vendor security reviews, and compliance initiatives. Improve identity management, endpoint security, asset management, and operational visibility through automation and process improvement. Provide technical support, onboarding, and user lifecycle management while maintaining clear operational documentation. What We're Looking For This position requires working directly or indirectly with the U.S. Government in restricted environments. 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. Required 3–5 years of experience in IT, infrastructure, systems administration, security operations, or related technical roles. Experience with CMMC, NIST 800-171, NIST 800-53, SOC 2, ISO 27001, or similar frameworks. Strong hands‑on experience supporting corporate IT environments and modern security tooling. Working knowledge of networking, endpoint management, identity and access management, SaaS administration, and cloud‑based systems. Experience administering Windows, macOS, and Linux environments. Strong troubleshooting, documentation, communication, and cross‑functional collaboration skills. Someone Who Will Thrive in This Role Enjoys working across infrastructure, security, compliance, and user support. Takes ownership, drives solutions independently, and continuously improves processes. Balances operational execution with long‑term strategic thinking. Collaborates effectively with both technical and non‑technical teams. Has a genuine interest in cybersecurity, infrastructure, automation, or emerging technologies. Bonus Points Experience supporting compliance programs, security operations, or cloud infrastructure. Relevant security, cloud, networking, or systems administration certifications. Personal projects, homelab experience, or demonstrated passion for security and infrastructure. At MatrixSpace, Security & Infrastructure is where operational excellence meets mission‑critical innovation. You'll help build the secure foundation that enables our teams to deliver cutting‑edge sensing solutions to customers across commercial, public safety, and defense markets. Compensation range: $120,000 - $160,000. Actual position within the range will be determined based on experience level of the candidate. #J-18808-Ljbffr Matrixspace