Tabitha O'Brart
@tabithaobrart
CIPP-qualified senior payroll administrator delivering accurate, automated payroll solutions.
United KingdomWhat I'm looking for
I am a CIPP-qualified senior payroll administrator with extensive experience managing end-to-end payroll for large, multi-entity organisations. I specialise in delivering compliant, accurate payrolls while improving efficiency through automation and strong process controls.
At Dimensions UK I manage payroll operations for around 8,000 employees, performing reconciliations, RTI submissions and large-scale pay uplifts with minimal errors. I lead knowledge-sharing, mentor junior administrators and maintain high customer satisfaction by reducing repeat queries.
Previously I delivered payroll and expenses services for 1,700+ employees at the General Medical Council, supported audits, led system change testing, and built automated solutions such as a Power Automate mileage tracker that cut processing time dramatically.
Throughout my career I have implemented process improvements, managed TUPE transfers, and maintained rigorous audit trails. I bring strong technical skills in payroll systems, Excel, reporting tools and automation to drive accuracy and operational resilience.
Experience
Work history, roles, and key accomplishments
Senior Payroll Administrator
Dimensions UK
Nov 2024 - Present (1 year)
Manage end-to-end payroll for 8,000+ employees across multiple monthly payrolls, delivering accurate RTI reconciliations, monthly reconciliations, and process improvements that reduced repeat queries and ensured timely BACS payments.
GCPayroll and Expenses Officer
General Medical Council
Aug 2019 - Sep 2024 (5 years 1 month)
Delivered end-to-end payroll and expenses for 1,700+ employees, led audits and system change UAT, and automated expense processes reducing mileage processing time from 4 hours to 15 minutes.
Accounts Assistant / Payroll Clerk
Cloud Technology Solutions
Aug 2017 - Aug 2019 (2 years)
Combined payroll and HR administration for a 100+ employee Google Cloud partner, onboarding 100+ staff and maintaining accurate payroll changelogs to support smooth monthly runs.
ASAccounts Payable Analyst
ASOS
Mar 2016 - Aug 2017 (1 year 5 months)
Managed 100+ supplier accounts, ensured timely invoice processing and reconciliations, and supported weekly payment runs to maintain supplier relationships and ledger accuracy.
Purchase Ledger Clerk
Winning Moves UK
Mar 2015 - Mar 2016 (1 year)
Managed purchase ledger across four companies, ensuring accurate coding, weekly bank reconciliations and timely payments to maintain clean ledgers and supplier relationships.
Accounts and Payroll Assistant
Gorgeous Shop
Jul 2014 - Mar 2015 (8 months)
Processed invoices and weekly payroll, managed staff expenses and petty cash, and maintained compliance with refund and fraud controls to support small business finance operations.
Education
Degrees, certifications, and relevant coursework
UWUniversity of Worcester
CIPP Foundation Degree (Level 5), Payroll Management
2020 - 2023
Completed CIPP Foundation Degree in Payroll Management (Level 5) with practical payroll and compliance-focused coursework and assessments.
BUBrunel University
Bachelor of Science (Hons), Mathematics
2010 - 2014
Grade: 2:2
Graduated with a BSc (Hons) in Mathematics (2:2), covering advanced mathematical concepts applied to analytical problem solving.
Queens' School, Hertfordshire
A-Levels, Secondary Education
2003 - 2010
Grade: Mathematics (A), Further Mathematics (B), Geography (C)
Achieved A-Levels in Mathematics (A), Further Mathematics (B), and Geography (C) as part of secondary education.
Availability
Location
United KingdomAuthorized to work in
Job categories
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