Senior ServiceNow Developer

Company OverviewWe are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR).QinetiQ US’s dedicated experts in defense, aerospace, security, and related fields all work together to explore new ways of protecting the American Warfighter, Security Forces, and Allies. Being a part of QinetiQ US means being central to the safety and security of the world around us. Partnering with our customers, we help save lives; reduce risks to society; and maintain the global infrastructure on which we all depend.Why Join QinetiQ US?If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems. In our diverse and inclusive environment, you can be authentic, feel valued, be respected, and realize your full potential. QinetiQ US will support you with workplace flexibility, a commitment to the health and well-being of you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives.Position OverviewQinetiQ US is seeking highly qualified ServiceNow Developer to assist with a critical Department of War client located in the Chantilly, VA area. Candidates should be willing to work onsite within a team of 4-6 developers to mentor, train and lead the implementation of crticial ServiceNow functions agency wide. The ServiceNow Senior Developer is responsible for designing, developing, and implementing complex technical solutions on the organization’s ServiceNow platform. This role acts as a primary technical subject matter expert, translating business requirements into scalable, efficient, and secure workflows and applications. The Senior Developer plays a critical role in mentoring junior developers, establishing coding best practices, managing advanced integrations, and ensuring the overall health and architectural integrity of the platform while operating within an Agile framework. ResponsibilitiesTechnical Solution Design & Advanced DevelopmentDesign, build, and customize ServiceNow applications and modules (e.g., ITSM, ITOM, HRSD, CSM) using advanced scripting (JavaScript, GlideRecord, GlideSystem, Business Rules, Client Scripts, Script Includes).Develop and enhance Service Portals using HTML, CSS, AngularJS, and Bootstrap.Translate business concepts and functional requirements into robust, scalable technical designs and implementation plans.Troubleshoot complex technical issues, perform root-cause analysis, and implement effective performance optimizations.System Integration & ArchitectureArchitect and implement secure integrations between ServiceNow and external third-party systems using REST, SOAP, JSON, XML, and Integration Hub.Maintain data integrity and mapping during integrations, ensuring optimal system performance and minimizing technical debt.Assist in defining and maintaining the long-term architectural roadmap for the platform.Code Quality & MentorshipConduct rigorous code reviews for peer and junior developers to ensure adherence to ServiceNow best practices, security standards, and internal guidelines.Mentor and guide junior developers and administrators, fostering a culture of continuous technical learning and high-quality delivery.Act as a technical escalation point for complex development challenges.Change Governance & DeploymentParticipate in the Configuration Control Board (CCB) as a technical Subject Matter Expert (SME) to evaluate the technical feasibility and impact of proposed changes.Manage complex deployments using Update Sets, CI/CD pipelines, and ServiceNow Application Repository, ensuring smooth transitions from lower environments to Production.Ensure all development work follows defined change governance, compliance, security, and architectural standards.Technical Documentation & EnablementDevelop and maintain comprehensive technical documentation, including architectural diagrams, technical design documents (TDD), and system configurations.Create and update Standard Operating Procedures (SOPs) for deployment, coding standards, and platformRequired QualificationsBachelor’s degree in Information Technology, Computer Science, or related field (or equivalent experience).5-7+ years of hands-on experience in ServiceNow development, configuration, and administration.Advanced proficiency in JavaScript, HTML, CSS, AngularJS, and ServiceNow scripting APIs.Strong experience building and managing complex REST/SOAP API integrations.Solid understanding of Agile/Scrum methodologies and experience working in sprint-based delivery cycles.Excellent problem-solving skills and the ability to articulate complex technical concepts to non-technical stakeholders.Top Secret Clearance with SCI eligibility. #qinetiqclearedjobPreferred QualificationsServiceNow Certified Application Developer (CAD) strongly preferred.ServiceNow Certified Implementation Specialist (CIS) in one or more relevant modules (ITSM, ITOM, HRSD, etc.).Experience with Automated Test Framework (ATF) and setting up automated testing pipelines.Familiarity with ITIL processes and strong foundational knowledge of ITSM principles (ITIL v4 certification is a plus).Familiarity with DoD SAPsPay TransparencyThe salary range for this role is $135,000 - $185,000 USD. The salary range provided is a good faith estimate representative of all experience levels. QinetiQ US considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Company EEO StatementAccessibility/Accommodation:If because of a medical condition or disability you need a reasonable accommodation for any part of the employment process, please send an e-mail to View email address on click.appcast.io or call View phone number on click.appcast.io Opt. 1 and let us know the nature of your request and contact information.QinetiQ US is an Equal Opportunity employer. All Qualified Applicants will receive equal consideration for employment without regard to race, age, color, religion, creed, sex, sexual orientation, gender identity, national origin, disability, or protected Veteran status.Job SummaryJob ID: 2026-12242Posted Date: Information TechnologyJob Location: US-VA-Chantilly