ServiceNow Engineer, Senior

Peraton; Reston (VA); Remote; USD 112,000 - 179,000; Full time

Job summary

Peraton is seeking a Senior ServiceNow Engineer to design, develop, and support highly customized applications on the ServiceNow platform. This 100% remote role requires strong technical judgment and ownership of outcomes.

The candidate will mentor junior developers, gather requirements with stakeholders, and deliver scalable solutions while aligning with security standards like FedRAMP and DoD requirements.

Qualifications

• Demonstrated experience developing and supporting custom ServiceNow applications.
• Strong hands-on experience customizing Service Portal, including widget development and troubleshooting.
• Ability to understand an existing proprietary application by examining its code, configuration, data model, and business processes.

Responsibilities

• Design and develop custom ServiceNow applications using App Engine Studio and/or traditional scoped application development.
• Build and enhance custom modules, data models, platform extensions, and Service Portal widgets.
• Customize and extend existing ServiceNow applications and modules to meet customer-specific requirements.
• Develop workflows, automation, and integrations with external systems using REST/SOAP APIs and third-party platforms.
• Write, test, and debug Business Rules, Script Includes, Client Scripts, UI Policies, Flow Designer flows, and Fix Scripts.
• Develop custom UI components, including UI Pages, UI Actions, and Service Portal elements.
• Gather and analyze requirements directly with stakeholders, identify gaps and dependencies, and translate business needs into technical solutions.
• Investigate unfamiliar application behavior by tracing scripts, configurations, tables, and data relationships.

Skills

ServiceNow

App Engine Studio

REST/SOAP APIs

Service Portal widgets

CMDB

MID Servers

RBAC / ACLs

Agile/DevSecOps

Tools

Service Portal

UI Pages

Flow Designer

Fix Scripts

Job description

ServiceNow Engineer, Senior

Job Locations

US

Responsibilities

Senior ServiceNow Engineer - This is a 100% Remote position

Peraton is seeking a Senior ServiceNow Engineer to design, develop, and support highly customized applications on the ServiceNow platform.

This is a hands-on senior development role requiring strong technical judgment, independent problem-solving, and ownership of outcomes. The successful candidate can take a business need or reported issue, gather and clarify requirements, investigate the existing application, recommend an approach, and deliver a working solution without step-by-step direction.

Our environment includes proprietary applications, custom data models, and extensive Service Portal customization. Most development involves custom solutions. Candidates must be comfortable learning unfamiliar systems, tracing existing code and data relationships, and determining how changes will affect the broader application.

As a senior engineer, you will also serve as a technical resource for junior developers, helping them resolve issues, evaluate approaches, and move work forward.

Be prepared and willing to answer code questions or perform small excercises to prove skillset during video interview.

• Design and develop custom ServiceNow applications using App Engine Studio and/or traditional scoped application development.
• Build and enhance custom modules, data models, platform extensions, and Service Portal widgets.
• Customize and extend existing ServiceNow applications and modules to meet customer-specific requirements.
• Develop workflows, automation, and integrations with external systems using REST/SOAP APIs and third-party platforms.
• Write, test, and debug Business Rules, Script Includes, Client Scripts, UI Policies, Flow Designer flows, and Fix Scripts.
• Develop custom UI components, including UI Pages, UI Actions, and Service Portal elements.
• Gather and analyze requirements directly with stakeholders, identify gaps and dependencies, and translate business needs into technical solutions.
• Investigate unfamiliar application behavior by tracing scripts, configurations, tables, and data relationships.
• Evaluate implementation options and recommend scalable, maintainable solutions aligned with ServiceNow best practices.
• Own assigned work from initial investigation through development, testing, documentation, and delivery.
• Collaborate with developers and other team members in an Agile/DevSecOps environment, including story refinement, estimation, and lightweight ceremonies.
• Maintain and apply knowledge of ServiceNow tables, dictionary definitions, relationships, and the CMDB.
• Configure and use MID Servers for integrations and data movement.
• Implement role-based access controls, ACLs, and other platform security configurations.
• Follow applicable security and compliance requirements, including FedRAMP, DoD, and STIG requirements.
• Set up and configure ServiceNow instances to support new applications or application migrations, researching unfamiliar setup requirements as needed.
• Trace data to its source tables and troubleshoot application behavior within a domain-separated environment.

Work Style Expectations

• Operate with a high level of ownership and autonomy in a fully remote environment.
• Take initiative to research, investigate, and resolve problems using available documentation, platform resources, and application evidence.
• Seek clarification and collaborate when needed, while bringing relevant findings, options, or a recommended next step.
• Identify roadblocks early, communicate their impact, and propose practical ways to move forward.
• Maintain consistent communication and availability during the business day, including clear updates on progress, risks, and dependencies.
• Follow work through completion and proactively coordinate the next priority when current assignments are finished.
• Support a small team through knowledge sharing, constructive technical guidance, and dependable delivery.

Qualifications

• Minimum of 8 years with BS/BA; Minimum of 6 years with MS/MA; Minimum of 3 years with PhD
• Secret Clearance Required
• Demonstrated experience developing and supporting custom ServiceNow applications.
• Strong hands-on experience customizing Service Portal, including widget development and troubleshooting.
• Ability to understand an existing proprietary application by examining its code, configuration, data model, and business processes.
• Ability to work from a business objective or problem statement and develop a technical approach independently.
• Ability to recognize incomplete or ambiguous requirements and ask targeted questions to resolve them.
• Strong troubleshooting skills, including identifying root causes and evaluating the impact of proposed changes.
• Ability to provide technical guidance to junior developers and explain implementation decisions clearly.
• Experience developing workflows, automation, and integrations with external systems (REST/SOAP APIs, third‑party platforms)
• Experience writing, testing, and debugging ServiceNow scripts (Business Rules, Script Includes, Client Scripts, UI Policies, Flow Designer, Fix Scripts)
• Developing custom UI components (UI Pages, UI Actions, Service Portal elements)

Peraton Overview

Peraton is a next‑generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$112,000 - $179,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.