We are seeking an experienced Senior ServiceNow Developer for a Central Government client on an initial 6-month contract. This role requires active SC Clearance and you will play a key role in designing, developing, and enhancing ServiceNow solutions, ensuring high performance, scalability, and alignment with business requirements. Key Responsibilities Design and develop ServiceNow solutions across multiple modules Deliver advanced JavaScript development within the ServiceNow platform Lead on UI customisation, including UI Policies, UI Actions, Client Scripts, and Service Portal customisation Develop and maintain ServiceNow scripting (Business Rules, Script Includes, Flow Designer, etc.) Configure and extend ServiceNow data models, including tables, relationships, and CMDB structures Collaborate with architects, business analysts, and stakeholders to translate requirements into technical solutions Perform code reviews and ensure adherence to best practice and platform governance Support testing, deployment, and knowledge transfer activities Essential Skills & Experience Strong experience as a Senior ServiceNow Developer Advanced JavaScript development skills Extensive experience with ServiceNow UI customisation In-depth understanding of ServiceNow data models and platform architecture Proven experience with ServiceNow scripting, including Business Rules, Script Includes, Client Scripts, and integrations Experience working in secure/government environments Active SC Clearance (mandatory) You will be required to attend site in Milton Keynes 1-2 days per week. Please send me your CV if you are interested. Certes Computing (and all of its subsidiary companies) is committed to promoting equality and diversity in its business operations.