Lead ServiceNow Developer

About the role

MANTECH seeks a motivated, career and customer-oriented Lead ServiceNow Developer to serve as the technical authority for our internal enterprise ITSM environment in Herndon, VA. This is a hybrid position. This role focuses on hands-on custom development and complex enterprise system integrations to ensure seamless interoperability across MANTECH’s internal IT ecosystem.

Responsibilities

• Diagnosing and resolving platform performance bottlenecks, integration failures, and legacy code issues.
• Collaborating with the Product Manager and enterprise infrastructure/security teams to execute technical requirements according to ServiceNow best practices.
• Architecting, designing, and building secure, scalable integrations between ServiceNow and enterprise systems using REST, SOAP, Integration Hub, MID Servers, and custom web services.
• Leading complex script development using JavaScript, Script Includes, Business Rules, Client Scripts, Flow Designer, and Service Portal components.
• Providing technical guidance, code reviews, and architectural oversight to mid- and junior-level developers on the team.
• Maintaining system baselines and configuration management items to align with enterprise architecture standards.
• Recommending, and when approved, implementing process and policy improvements across the ServiceNow platform.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
• 6+ years of hands-on ServiceNow development experience, with at least 2 years in a technical lead role.
• Proven experience designing and implementing complex enterprise integrations using Integration Hub, Webhooks, API endpoints, and OAuth.
• Advanced proficiency in JavaScript, HTML/CSS, JSON/XML, and relational database concepts.
• ServiceNow Certified Application Developer (CAD) certification.
• Experience working across a large team to drive technical agenda and managing complex, intertwined systems and data flows.
• U.S. Citizen (clearance requirement).
• Physical requirements: ability to remain in a stationary position 50%; occasional movement inside the office; frequent communication with co-workers, management, and customers, including delivering presentations; ability to exchange accurate information.

Qualifications

• ServiceNow Certified Implementation Specialist (CIS) in one or more ITSM modules (preferred).
• Experience with automated testing tools (ATF) and DevOps pipeline integrations (preferred).
• Experience creating, maintaining, and communicating complex information technology documentation (preferred).
• Self‑starter with excellent people skills to work across teams and drive change throughout an organization (preferred).

Skills

• JavaScript
• HTML/CSS
• JSON/XML
• Relational database concepts
• ServiceNow development (Script Includes, Business Rules, Client Scripts, Flow Designer, Service Portal)
• Integration Hub, REST, SOAP, MID Servers, custom web services
• OAuth, Webhooks, API endpoints
• Technical leadership and code review