The Leidos Security and Engineering Programs (SEP) is seeking a ServiceNow Developer for the Center for Information Systems Security (CISS) program. This position requires the ability to work flexible hours in Chantilly, VA with as-needed travel to Washington DC or Alexandria, VA (under 25%).
Work Schedule is as follows:
Monday thru Friday: 6AM-2:30PM
Primary Responsibilities
Maintain, support, and troubleshoot an on-prem production ServiceNow instance. Work with customers and end users to develop solutions for requested enhancements in development and sandbox environments before migrating to production. Assist with instance upgrades, including changes to licensing based off requirements and growth. Collaborate with team lead to create roadmap with timelines for project management and reporting purposes.
Basic Qualifications
• BS degree and 4 – 8 years of prior relevant experience or Masters with 4+ years of prior relevant experience. A High School diploma with an additional 2 years’ relevant experience may be considered in lieu of a degree.
• Interim Top-Secret clearance is required with ability to obtain a Final Top Secret.
Technical Requirements:
•Relational databases: Clear understanding of ServiceNow data schemas, table relationships, and dot-walking.
•Web development basics: Foundational knowledge of HTML, CSS, and XML
•Scripting & logic: Write and debug clean JavaScript for Client Scripts, Business Rules, and Script Includes.
ServiceNow Platform Knowledge:
•Platform configuration: Modify tables, forms, lists, UI Polices/Actions, and Access Control Lists (ACLs).
•Process automation: Build and maintain cross-module workflows using Flow Designer and Workflow Editor.
•System administration: Experience with User administration, Groups, and Roles.
•Reporting: Create and share standard dashboards and platform reports.
•Instance hygiene: Understand how to capture changes using Update Sets.
•Generalist development: Support, configure, and customize features across multiple modules including ITSM and custom applications.
Soft Skills & Delivery:
•Adaptability: Willingness to pivot quickly between different platform modules and diverse business requests.
•Requirements translation: Ability to turn basic business requests into functional platform configurations.
•Problem solving: Troubleshoot basic platform errors and user issues.
•Communication: Ability to gather requirements from non-technical stakeholders.
Couse Completion:
•ServiceNow Fundamentals course
•IAT II Certification
•One of the following active certifications or the ability to obtain within one month of hire: ServiceNow Certified Application Developer, ServiceNow Certified System Administrator, ServiceNow Certified Implementation Specialist, or other ServiceNow certification.
Preferred Qualifications:
•ITIL v3 Foundations Certification
•ServiceNow API experience, such as REST and SOAP
•Experience with ServiceNow on-prem.
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 21, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
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.
Skills Required
- Bachelor's degree with 4-8 years relevant experience (or Master's with 4+ years; HS plus additional experience may be considered)
- Interim Top-Secret clearance with ability to obtain Final Top Secret
- Maintain, support, and troubleshoot on-prem ServiceNow production instance
- Clear understanding of ServiceNow data schemas, table relationships, and dot-walking
- Foundational knowledge of HTML, CSS, and XML
- Write and debug JavaScript for Client Scripts, Business Rules, and Script Includes
- Modify tables, forms, lists, UI Policies/Actions, and ACLs (platform configuration)
- Build and maintain cross-module workflows using Flow Designer and Workflow Editor
- User administration experience (Users, Groups, Roles)
- Create and share standard dashboards and platform reports
- Capture changes using Update Sets (instance hygiene)
- Support, configure, and customize features across ITSM and custom applications
- ServiceNow Fundamentals course completion
- IAT II Certification
- One active ServiceNow certification or ability to obtain within one month (e.g., CAD, CSA, CIS)
- Ability to gather requirements from non-technical stakeholders and translate into platform configurations
- Adaptability and problem-solving to pivot between modules and troubleshoot platform errors
- ITIL v3 Foundations Certification
- ServiceNow API experience (REST and SOAP)
- Experience with ServiceNow on-prem environments
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
