Engineering contractor electronics systems

At Unlimited Technology, we are committed to our company's core values of Passion, Collaboration, Innovation and Adaptability. With offices throughout the United States, we are a premier cyber and physical security specialty contractor, and we are growing at a rapid pace. We have a wide range of talented and experienced individuals that deliver cutting edge technology solutions to meet our customers’ ever-changing needs.

We secure the facilities and networks of the world’s leading brands and critical infrastructure and are recognized leaders in the physical and IT security, cyber, and managed services industries. The Systems Engineer III is a senior technical resource responsible for the design, configuration, programming, integration, testing, and commissioning of security technology systems for Unlimited Technology’s Government/Federal business, including enterprise, multi-site, and mission-critical environments.

The position releases the Bill of Materials on complex projects, resolves disputed scope, leads complex integrations and system architecture, and serves as the technical escalation point for Systems Engineer I and II personnel. The Systems Engineer III also reviews the deliverables of other engineers and develops and recommends engineering standards and best practices. This position reports to the Systems Engineering Manager and has no direct reports.

This position supports the Government/Federal business, and assignments may require clearance eligibility, badging, and government site access. Work is assigned through the Systems Engineering Ticket Request Queue. The Systems Engineer III escalates to the Systems Engineering Manager and works closely with Project Management, Installation, Service, the CAD and Design group, and Solution Engineering. Engineering levels are cumulative. This position performs the full scope of Systems Engineer work across all levels of project complexity;

this includes scope and Bill of Materials review, port chart preparation, programming, integration, testing, commissioning, and support of field personnel. Works as a senior individual contributor and technical authority, providing technical leadership, peer review, mentoring, and escalation support without direct personnel management responsibility. Independently owns enterprise, multi-site, and mission-critical work, and serves as the assigned escalation point for Systems Engineer I and II personnel.

Program and integrate complex, enterprise, and mission-critical systems, including multi-platform and third-party integrations. Design and configure system architecture, including high availability, redundancy, failover, and disaster recovery considerations, and lead backup and recovery configuration ign and manage Active Directory and LDAP integration and certificate management, including federated, multi-site, and mobile credential deployments. Own PKI integration design for PIV/CAC-enabled PACS deployments, including certificate chain validation, CRL and OCSP revocation checking, and OSDP Secure Channel key management architecture, accounting for legacy reader and hardware limitations that cannot support FICAM-compliant modes.

Lead technical remediation strategy for complex or systemic ATO and vulnerability assessment findings, sequencing fixes to avoid downtime on active government facilities and validating resolution under retest. Work directly with ISSO, ISSM, and Authorizing Official stakeholders to scope NIST 800-53 control implementation, support continuous monitoring evidence collection, and defend risk-acceptance or compensating-control decisions when findings cannot be fully closed before an ATO deadline.

Lead testing, commissioning, customer…