Principal System Engineer

Company: RadiantHire Solutions
Location: Dulles
Posted on: April 1, 2026

Job Description:

Title: Systems Engineer - Principal I This is a part time role Description: Our client is supporting our prime contractor and their U.S. Government customer on a large mission-critical cyber operations program. They are seeking an experienced and technically proficient Systems Engineer - Principal I to design, develop, and implement ServiceNow Security Operations (SecOps) solutions that enhance the customer’s ability to detect, respond, and remediate security threats. This hybrid role combines ServiceNow SecOps development, integration engineering, and process consulting. The ideal candidate will work directly with security stakeholders, translate mission requirements into technical designs, and deliver scalable, secure, and automated SecOps capabilities within the ServiceNow platform. Eligibility: Must be a US Citizen Must have an active TS/SCI clearance Must be able to obtain DHS Suitability prior to starting employment 8 years of software development, IT security, or IT systems engineering experience Responsibilities Include: Designing, prototyping, and implementing ServiceNow SecOps applications, including: Security Incident Response (SIR): enrichment, correlation rules, and automated playbooks. Vulnerability Response (VR): scanner integrations, remediation workflows, patch group automation. Configuration Compliance (CC): policy exception handling, remediation tasks, compliance dashboards. Threat Intelligence (TI): ingestion of IOCs, sightings search, enrichment workflows. Supporting the customer’s roadmap for Splunk integrations to enable alert ingestion, bi-directional incident synchronization, and SIEM dashboards. Developing custom integrations with SIEM, scanner, and intel tools (e.g., Splunk, Tenable, VirusTotal, Hybrid Analysis) using IntegrationHub, REST/SOAP APIs, and MID Server. Building and maintaining orchestration playbooks, Flow Designer workflows, Business Rules, and Script Includes to automate enrichment and response actions. Documenting and maintaining policies, procedures, and technical designs aligned with Agile development practices and secure coding standards. Leading workshops with SOC, IR, and VR teams to capture mission needs, define business requirements, and translate them into technical solutions. Creating and maintaining Performance Analytics dashboards and KPIs to provide real-time visibility into security posture. Supporting incident resolution, troubleshooting, and sustainment of the ServiceNow SecOps environment. Providing mentorship and knowledge transfer to client staff on best practices and solution sustainment. Required Skills: 4 years of ServiceNow experience, with at least 2 years focused on SecOps applications (SIR, VR, CC, or TI) Strong knowledge of ServiceNow administration, advanced configuration, and custom application development. Experience integrating ServiceNow with SIEM, vulnerability scanners, and threat intelligence platforms. Hands-on experience with Flow Designer, Orchestration, IntegrationHub, and MID Server. Strong technical skills in web technologies (JavaScript, HTML, XML, Angular, CSS) and integration technologies (REST, SOAP, LDAP, SSO). Familiarity with federal cybersecurity frameworks (NIST 800-53, FedRAMP, CISA KEV, MITRE ATT&CK). Strong communication, presentation, and documentation skills for technical and business stakeholders. Desired Skills: Experience supporting DHS, DoD, or Intelligence Community customers. Experience deploying future-state SecOps processes including incident triage, vulnerability management, compliance automation, and threat intel workflows. Familiarity with Splunk use cases for security operations and event correlation. Experience with collaboration tools (MS Teams, Outlook, SharePoint, Atlassian Jira/Confluence). Strong problem-solving, analytical, and consulting skills in complex security environments. Information Systems Security Engineering Professional (ISSEP) or Information System Security Architect Professional (ISSAP) certification desired. Desired Certifications: ServiceNow Certified System Administrator (CSA). ServiceNow Certified Application Developer. ServiceNow Certified Implementation Specialist – SecOps (SIR, VR, or CC). ITIL v4 Foundation certification (or willingness to complete within one year). DoD 8570.1-M Compliance at IAT Level I (e.g., Certified Information Systems Security Professional (CISSP)) certification highly desired Required Education: Bachelor’s degree in Cybersecurity, Computer Science, Software Engineering, Systems Engineering, or a related discipline, and at least 8 years of directly relevant work experience. In lieu of a degree: an additional 10 years of directly relevant work experience (for a total of 18 years) may be substituted.

Keywords: RadiantHire Solutions, Harrisonburg , Principal System Engineer, IT / Software / Systems , Dulles, Virginia