Payroll Software Implementation Specialist


Company:	Ipsum Utilities Limited
Salary:	Not specified
Hours:	Full-time
Location:	PR7 1NY
Job type:	Permanent
Posting date:	10 Sept 2026
Closing date:	8 Oct 2026

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Summary

Employment Type: Interim, Fixed term contract - (expected six-month duration)

Working Hours: Monday – Friday

What’s in it for you…

We believe in looking after our people, and it shows. When you join Ipsum, you’re not just taking a job - you’re starting a career with real support behind it. 

Annual leave

Hybrid working

Group Personal Pension Plan

Car allowance

Career development & progression with the opportunity to earn professional qualifications

24/7 access to a virtual GP and Mental health support & counselling services 

Cycle to Work scheme 

Discount club - supermarkets, phone bills, gyms & more! 

Life assurance cover 

Long service recognition 

Active local social committees 

Regular social events 

About the role…

As a Payroll Software Implementation Specialist, you will work closely with the Payroll Project Lead and play a pivotal role in supporting the delivery of our payroll transformation initiative across a complex UK payroll environment within the organisation. This role is ideal for someone with hands-on experience in complex UK payroll software implementations and integrations (specific experience in Zellis’ ZellisONE, Zellis HCM AIR SaaS, Zellis HCM Cloud SaaS and/or Zellis Private Cloud SaaS would be advantageous) and proven capability in data migration, process improvement and governance, and supporting stakeholders through all phases of implementation.

This is a fixed-term contract with a minimum period of 6 months. Working hours are 40 hours per week Monday - Friday. The role will be based from our head office in Chorley, with occasional travel & hybrid working.

As a Payroll Software Implementation Specialist, you will support a seamless transition into new software and new ways of working.

Payroll system migration: working closely with the Payroll Project Lead to lead and support end to end migration activities across Zellis, PeopleHR, Ipsum.live Jobs, Business Central and other required internal systems, including data extraction, cleansing, mapping, validation, and reconciliation

Facilitate workshops and develop training materials and user guidance documentation to define requirements, business processes, and future-state operating models, and manage stakeholder expectations and provide regular project updates

Process documentation: create clear “as-is” and “to-be” process maps, workflows, and procedural documentation

Data analysis & preparation: define, review, audit, and prepare payroll data and datasets for migration, ensuring accuracy and completeness

Testing & UAT: coordinate and execute payroll testing, cycles, parallel runs, defect resolution, and statutory calculation checks

Stakeholder engagement: working closely with HR, Finance, IT, Operations, and external vendors to ensure project alignment and smooth delivery throughout implementation

System configuration: support system configuration of complex and varied payroll rules, pay elements, GL mapping, and integrations with HRIS/ERP systems

Compliance & Controls: ensure payroll processes meet HMRC, GDPR and data protection legislative requirements, RTI and PAYE/NIC’s requirements, pensions regulations, and internal governance standards

Change management: assist with training, communication, and handover to BAU payroll teams at go-live stage

Experience and Qualifications

Strong technical knowledge of UK payroll legislation and payroll best practice.

Hands on experience with UK payroll systems, ideally with Zellis Technology.

Proven experience and strong understanding or payroll interfaces with HRIS, Finance ERP, Time & Attendance, and pension and other benefit and third-party providers

Proven experience in data migration, including cleansing, mapping, and validation

Significant experience of complex payroll models including multiple payroll frequencies, multiple legal entities, TUPE transfers, harmonisation programmes, and complex pay calculations

Confident working with large datasets and Excel

Excellent communication skills with the ability to translate technical details into clear guidance

Significant experience supporting UK system implementations and/or payroll transformation projects

Strong problem-solving skills and attention to detail

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