Senior ServiceNow Developer with Security Clearance

System High Corporation; Chantilly (VA); On-site; USD 110,000 - 160,000; Full time

Job summary

System High Corporation in Chantilly, VA is seeking a ServiceNow Senior Developer to design, develop, and implement complex solutions on the ServiceNow platform. You will translate business requirements into scalable workflows, mentor junior developers, and help shape the platform’s architectural roadmap in an Agile environment.

You will lead integrations with external systems via REST and SOAP, implement secure code, review peers, and guide deployments through CI/CD pipelines while maintaining

Qualifications

• Bachelor's degree in Information Technology, Computer Science, or related field.
• 5+ years of hands-on 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 sprint-based delivery cycles.

Responsibilities

• Design, build, and customize ServiceNow applications and modules using advanced scripting.
• Develop and enhance Service Portals using HTML, CSS, AngularJS, and Bootstrap.
• Translate business concepts into robust technical designs and implementation plans.
• Troubleshoot complex issues, perform root-cause analysis, and optimize performance.
• Architect and implement secure integrations between ServiceNow and external systems.
• Maintain data integrity and mapping during integrations and ensure optimal performance.
• Assist in defining the long-term architectural roadmap for the platform.
• Conduct code reviews to ensure adherence to best practices and security standards.
• Mentor junior developers and administrators to foster high-quality delivery.
• Participate in Change Governance and deployment using Update Sets, CI/CD pipelines.
• Develop and maintain technical documentation and SOPs for deployment and maintenance.

Skills

JavaScript

HTML

CSS

AngularJS

ServiceNow scripting

REST API

SOAP API

Agile/Scrum

Problem solving

Clearance eligibility

Education

Bachelor's degree in IT/CS or related field

Tools

ATF

CI/CD pipelines

Job description

Description 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.

Key Responsibilities

• Design, 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 & Architecture
• Architect 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 & Mentorship
• Conduct 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 & Deployment
• Participate 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 & Enablement
• Develop 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 platform maintenance.

Qualifications Required

• Bachelor'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.

Preferred Qualifications

• ServiceNow 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).

DoD SAPs Core Competencies

• Advanced ServiceNow platform and scripting expertise
• Complex systems integration and API management
• Technical architectural design
• Mentorship and peer development
• Agile development execution
• Root-cause analysis and performance tuning
• Clear technical communication

Additional Information

• This job description is not designed to cover or contain all job duties required of the employee. There may be additional activities, duties and/or responsibilities that are required for this position that are not listed in this job description.
• In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
• System High is a Military friendly employer. Our extensive work on behalf of the U.S. government offers those who have served in uniform an opportunity to continue to serve their country in a new and exciting way while enjoying a successful civilian career.
• System High Corporation is an Equal Opportunity/Affirmative Action Employer. We consider applicants without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, or membership in any other group protected by federal, state, or local law.