Senior ServiceNow Developer & Integrations Lead

ManTech; Herndon (VA); Hybrid; USD 140,000 - 190,000; Full time

Job summary

MANTECH seeks a motivated Lead ServiceNow Developer to act as the technical authority for our internal ITSM environment in Herndon, VA. This hybrid role emphasizes hands-on development and complex integrations to ensure seamless interoperability across the IT ecosystem.

You will lead script development, guide mid- and junior developers, and collaborate with security and infrastructure teams to implement best practices and enterprise standards.

Qualifications

• 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.

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.

Skills

JavaScript

HTML/CSS

JSON/XML

Relational databases

Leadership

Education

Bachelor’s degree in Computer Science or related field

Tools

ServiceNow

CAD certification

Integration Hub

MID Server

Job description

MANTECH seeks a motivated Lead ServiceNow Developer to act as the technical authority for our internal ITSM environment in Herndon, VA. This hybrid role emphasizes hands-on development and complex integrations to ensure seamless interoperability across the IT ecosystem.

You will lead script development, guide mid- and junior developers, and collaborate with security and infrastructure teams to implement best practices and enterprise standards.