ServiceNow Senior Developer

JR United Kingdom; Watford; Remote; GBP 50,000 - 70,000; Full time

Job summary

A leading company is seeking a ServiceNow Senior Developer in Watford. The role includes developing and optimizing ServiceNow applications, working closely with team members in an Agile environment, and ensuring high standards of code quality. This position offers competitive pay and the chance to work on impactful projects in a collaborative team.

Qualifications

• Proven experience with ServiceNow application development.
• Familiarity with Agile methodologies.
• Strong ability to address technical debt and improve code quality.

Responsibilities

• Develop and configure ServiceNow applications and perform optimization.
• Conduct unit testing and support performance testing.
• Collaborate with BAs, Product Owners, and Developers.

Skills

Agile/Scrum methodologies

Performance Optimization

Profiling and Debugging

Code Quality

Collaboration

Tools

ServiceNow applications

ATF (Automated Test Framework)

CI/CD pipelines

Job description

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ServiceNow Senior Developer, watford, hertfordshire

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Client:

Cpl Life Sciences

Location:

watford, hertfordshire, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

26.06.2025

Expiry Date:

10.08.2025

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Job Description:

ServiceNow Senior Developer

Inside IR35

Remote

3 months

Platform Development, Configuration and Documentation

• Develop and configure ServiceNow applications, including Custom Apps, Modules, UI Policies, Business Rules, and Client Scripts.
• Implement and maintain Workflows, Flow Designer flows, and Integration Hub spokes.
• Translate architecture and design into working, optimized code aligned with platform best practices.

Performance Optimization

• Conduct profiling and debugging of scripts, workflows, and queries to identify performance bottlenecks.
• Optimize GlideRecord usage, ACL performance, indexing, and background jobs.
• Collaborate with the architect to implement performance improvement recommendations.

Technical Debt & Code Quality

• Participate in identifying and addressing technical debt in existing modules and custom applications.
• Perform and respond to code reviews, refactor, and optimize logic where needed.
• Maintain clean, reusable, and modular code following defined standards and naming conventions.

Demo & Instance Readiness

• Prepare and validate instance readiness for feature demos and UATs (data prep, role mapping, test cases).
• Ensure the instance is clean, with demo-specific configurations and no test pollution.

Agile, Collaboration, and Demo Readiness

• Familiarity with Agile/Scrum methodologies and participation in ceremonies.
• Collaborate closely with BAs, Product Owners, and Developers to ensure business alignment.
• Lead and support feature demos, ensuring environments are technically ready and performance tested.
• Define and manage release readiness criteria from a technical perspective.
• Support in bi-weekly feature releases for client.

Testing & Validation

• Conduct unit testing, regression testing, and support performance testing.
• Log and resolve bugs or inconsistencies raised during internal QA or performance analysis.
• Use tools like Instance Scan, Script Tracer, Debug Logs to troubleshoot issues.

Nice to have

• Experience with CI/CD pipelines for ServiceNow.
• Hands-on with ATF (Automated Test Framework) for regression and performance validation.
• Experience handling demo or UAT environments, including data masking or synthetic data creation.
• Ability to present technical concepts to non-technical stakeholders clearly and confidently