ServiceNow Developer (Assistant Vice President) in London

Company Jefferies, the global investment banking firm, has served companies and investors for almost 60 years. Headquartered in New York with its European head office in London, the firm provides clients with capital markets and financial advisory services, institutional brokerage and securities research, and asset management.

We are seeking a ServiceNow Developer with strong ServiceNow implementation and development experience to support and enhance key Information Security processes across the organization. This role owns the end-to-end delivery, maintenance, and continuous improvement of ServiceNow modules.

The successful candidate will be comfortable gathering business requirements, mapping processes, writing user stories, and configuring and testing platform enhancements. They will partner with stakeholders across business, technology, and security teams, while working closely with global colleagues — including the U.S. team, offshore support teams, and external vendors — to deliver scalable solutions aligned with ITIL, CMDB, and ServiceNow best practices. The role serves as a key EMEA point of contact, owning projects from requirements through development, testing, deployment, documentation, and ongoing support.

Key Responsibilities

• Platform delivery and ownership: Own the end-to-end delivery, maintenance, and continuous improvement of ServiceNow modules supporting Information Security processes, from initial requirements through to deployment and ongoing support.
• Security workflow enablement: Support and enhance workflows for Machine Identity Protection (Digital Certificates/PKI), Illumio Network Segmentation, Vulnerability Response, and adjacent security processes.
• Requirements and process design: Gather business requirements, map current and target-state processes, write clear user stories and acceptance criteria, and translate stakeholder needs into practical platform solutions.
• Configuration and development: Develop and maintain business rules, UI policies, workflows, dashboards, access controls, and wider platform configurations using JavaScript and native ServiceNow capabilities.
• Testing and release: Configure and test platform enhancements, coordinate user acceptance testing, and manage controlled promotion of changes through to production.
• Platform health and data quality: Monitor platform performance and ensure strong platform health, data quality, CMDB integrity, and secure access management across supported modules.
• User support and service management: Provide day-to-day user support, managing ServiceNow-related queries, requests, and incidents in line with agreed service levels.
• Stakeholder and vendor partnership: Act as a key EMEA point of contact, working closely with the U.S. team, offshore support teams, and external vendors to deliver consistent, scalable outcomes.
• Documentation and standards: Produce and maintain technical and process documentation, ensuring alignment with ITIL, CMDB, and ServiceNow best practices.

Required Qualifications

• Minimum of 7 years of ServiceNow experience.
• Demonstrable hands-on experience implementing, configuring, and developing on the ServiceNow platform, including business rules, UI policies, workflows, and access controls.
• Proficiency in JavaScript as applied within ServiceNow, together with a solid understanding of platform architecture and scoped applications.
• Working knowledge of ITIL service management disciplines and CMDB design, data quality, and governance.
• Proven ability to elicit business requirements, map processes, and author clear user stories and acceptance criteria.
• Strong written and verbal communication skills, with the confidence to engage stakeholders across business, technology, and security functions.
• Experience working within a distributed, cross-regional delivery model alongside offshore teams and third-party vendors.

Preferred Qualifications

• ServiceNow certification, such as Certified System Administrator (CSA), Certified Application Developer (CAD), or a relevant Certified Implementation Specialist credential.
• Direct experience with the ServiceNow Vulnerability Response module and integration with scanning or asset discovery tooling.
• Familiarity with Illumio or comparable micro-segmentation platforms, and with certificate lifecycle management tooling such as Venafi or CyberArk.
• Prior experience in financial services or another regulated environment with formal change and audit controls.
• ITIL Foundation certification, or an equivalent recognized service management qualification.
• Exposure to Agile delivery practices and tooling, including backlog management within ServiceNow ITBM/SPM or Jira.

Jefferies is an equal employment opportunity employer, and takes affirmative action to ensure that all qualified applicants will receive consideration for employment without regard to race, creed, color, national origin, ancestry, religion, gender, pregnancy, age, physical or mental disability, marital status, sexual orientation, gender identity or expression, veteran or military status, genetic information, reproductive health decisions, or any other factor protected by applicable law.