Sr ServiceNow Developer

Leidos is looking for a Senior ServiceNow Developer to support and lead ongoing ServiceNow continuous improvement projects of existing ServiceNow implementation for an enterprise. The successful candidate will be able to adapt to client needs, and to support the implementation of the ServiceNow roadmap. The Senior ServiceNow Developer will collaborate with a diverse workforce within a matrix environment and be able to communicate effectively in obtaining and synthesizing requirements from external stakeholders, while working with the team to build upon the existing ServiceNow foundation. 

As a Senior ServiceNow Developer, you will play a crucial role in designing, developing, and implementing solutions within the ServiceNow platform. You will be responsible for maintaining and performing continual service improvements on the following implemented modules: ITSM, ITOM, ITAM, CMDB, HAM, CSM.   

This position is hybrid / remote. However, candidates must be willing to work east coast core work hours and "MUST BE" local to Washington, DC area and may be required to work onsite at times.

Qualifications: 

• Bachelor's degree and 8+ years of proven experience as a ServiceNow Developer with strong understanding of the platform’s architecture and capabilities. May consider additional years of experience in lieu of a degree. 

• At least 6 years of experience with design, development and support. 

• At least 4 years of experience in leading software development projects. 

• Must have hands on ServiceNow development experience across multiple modules in particular experience with Hardware Asst Management (HAM), Configuration Management Database (CMDB), Customer Service Management (CSM) and HR Service Delivery (HRSD). 

• Familiar with ITSM, ITOM, and ITAM. 

• Shows initiative, presents ideas to overcome challenges, self-starter. 

• Positive attitude, willingness to learn and team-oriented. 

• Exceptional communication and organizational skills. 

• Support development in Agile framework. Actively participate in agile daily scrums and ceremonies, updating stories daily in ServiceNow documenting development progress and collaborating across platform teams. 
   

• Hands-on experience with ServiceNow custom-scoped application development. 

Responsibilities: 

Technical Lead: 

• Exhibits exceptional customer service and teamwork, collaborating effectively with clients and vendors to achieve mission success while maintaining a strong commitment to delivering high-quality products and services. 
   

• Effectively conveys key ideas and gathers actionable feedback from cross-functional team members and stakeholders. Demonstrates strong creativity, collaboration, and the ability to communicate with clarity and impact. 

• Identifies risks and challenges, performs qualitative and quantitative analyses, evaluates alternatives, and provides well-informed recommendations. 

• Lead Development review process and provide technical guidance and support to junior and mid-level staff. 

• Gather and document business and system requirements. 

• Support in the development of use cases and testing procedures, ensuring product functionality, debugging and testing is completed prior to production deployment 

• Coordinate and lead project team meetings with technical staff and other key stakeholders. 

• Develop implementation plans, SOP, system architecture for all project deployments.  

• Assist in the architecture, design, management, and implementation of ServiceNow. 

• Prepare IT to project status reports and presentations by collecting, analyzing, and summarizing information and trends 
   

• Maintains project documentation repository 
   

• AI experience: Now Assist, third-party LLM API’s, Automatic test framework 
   

Development: 

• Demonstrated experience working on large-scale projects in diverse team environments with a focus on ServiceNow tools and techniques, including experience with JavaScript/GLIDE, HTML5, Angular JS, jQuery and CSS. 

• Design, configure, and implement environments for applications, engineer suitable release management procedures, and provide production support. 
   

• Design, create and configure Business Rules, UI Policies, UI Actions, Client Scripts and ACLs including advanced scripting. 
   

• Design and develop automation workflows, perform unit tests, and conduct reviews to make sure work utilizes coding standards and best practices for platform performance, and assess the overall quality of delivered components. 
   

• Experience using Flow Designer. 

• Integration experience. 
   

• Collaborate with team on software design, to provide accurate work estimates and implementation of new features including interfaces, contracts with storage system, and data transformation. 
   

• Liaise with other development, infrastructure, and operations teams. 
   

• Ensure that all security policies and practices are adhered to as part of development. 
   

• Ensure all development is created in alignment with ServiceNow Technical Best Practices 

What Sets You Apart: 

• Experience integrating ServiceNow with external systems 

• Familiarity with organizational change management 

• Ability to support multiple projects simultaneously 

• Experience with Okta and SSO technologies 

• Ability to obtain public trust clearance prior to start date. 

• Active ServiceNow Certified Systems Administrator (CSA) Certification or the ability to obtain certification within 3 months of hire date. 

You Might Also Have: 

• ServiceNow Certified Application Developer Certification 

• ServiceNow Certified Implementation Specialist Certification 

• ITIL v3 Foundations Certification 

• Project management experience 

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that provide them with an opportunity to thrive, professionally and personally. For us, helping you grow your career is good business. We’d like to learn more about you, apply today! 

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

July 14, 2026

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.