Technical Senior SIPP Administrator HMRC Reporting and Transition Support (Contract) Contract Details Contract Length: 6 months Rate: Competitive day rate (DOE) Location: Fully Remote (UK-based required) Overview We are supporting a growing financial services organisation seeking an experienced Senior SIPP Administrator to provide specialist support during a key operational period. This role combines hands-on SIPP administration, HMRC reporting expertise, and knowledge transfer responsibilities, making it ideal for a technically strong contractor who can deliver immediate impact while supporting long-term capability within the business. Role Purpose To deliver high-quality end-to-end SIPP administration across a complex portfolio, while taking ownership of HMRC reporting obligations, technical oversight, and structured handover to the internal team. Key Responsibilities SIPP Administration and Case Management Oversee full lifecycle administration of SIPPs, from onboarding through to ongoing servicing Process contributions, transfers (in/out), crystallisations, and benefit payments Manage drawdown activity, including pension payroll calculations Take ownership of complex, non-standard, and high-value cases Ensure all activities are completed accurately, efficiently, and in line with FCA and HMRC requirements HMRC Reporting and Tax Compliance Prepare and submit Event Reports, including benefit crystallisation and other reportable events Complete Accounting for Tax (AFT) retu