Senior ServiceNow Software Development Engineer

Senior ServiceNow Software Development Engineer
Location: Chantilly, VA
Clearance: TS/SCI w/Polygraph

Role Overview
The Senior ServiceNow Software Development Engineer is a senior-level technical position responsible for the hands-on development and deployment of enterprise-grade solutions. This role is focused on engineering all aspects of the Integrated Risk Management (IRM) and Security Operations (SecOps) suites. Working in alignment with the Solution Architect and Lead Engineer, the engineer will translate functional requirements into robust code and high-performance automated workflows.
Position Responsibilities

• Security Suite Implementation: Complete the technical configuration and development of ServiceNow Security Incident Response (SIR), Vulnerability Response (VR), and Configuration Compliance (CC) modules.
• Advanced Automation Engineering: Build complex, event-driven automation using Flow Designer and Integration Hub to optimize security and compliance processes.
• Data & Tool Integration: Engineer production-ready integrations with external security tools such as Splunk, Tenable, and Qualys by leveraging REST/SOAP APIs, MID Servers, and Scripted REST APIs.
• RMF & CAM Engineering: Execute technical requirements for the NIST Risk Management Framework (RMF) by designing automated workflows for tasking and control testing within the CAM module.
• Advanced Scripting & Logic: Develop and optimize both server-side and client-side logic using JavaScript, Script Includes, and Business Rules to ensure platform scalability.
• Platform Security: Implement granular access controls through ACLs and Data Filtration to protect sensitive TS/SCI-level information.
• Technical Quality Assurance: Use Automated Test Framework (ATF) to validate development work and ensure solution quality across all environments.

Required Qualifications

• Active TS/SCI Clearance with Polygraph
• Bachelor's degree or advanced degree in a related field
• A minimum of 5 years' technical experience
• Security+ (or equivalent IAT Level II); must be obtained within one month of start if not already held
• Excellent oral and written communication skills
• Expert proficiency in GlideScripting, JavaScript, and Ajax
• Deep understanding of CMDB architecture and its relationship to Asset Management
• Experience working on complex ServiceNow projects requiring in-depth evaluation of situations or data
• Experience integrating data from at least one enterprise security source (such as SIEMs like Splunk/Sentinel, or scanners like Tenable/Qualys/CrowdStrike) into the ServiceNow platform

Desired Qualifications

• ServiceNow Certified System Administrator and Certified Application Developer
• Proven experience implementing at least one major security suite, including SecOps (Security Incident Response, Vulnerability Response, or Configuration Compliance) or IRM/GRC (Policy & Compliance, Risk Management, or CAM)
• Technical familiarity with the NIST Risk Management Framework (RMF) or 800-53 controls
• Experience with Git-based development, Automated Test Framework (ATF), or Now Assist AI/ML integration
• Knowledge of at least one operating system: Linux, Unix, or Windows
• Strong technical background in Cloud Architecture

Stillwater is an Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, veteran status, or any other protected class. If you need assistance with the application process due to a disability, please contact us at
571-525 2482