Pay and Bill Business Analyst (1 year FTC)

Workwell are delivering a strategic, multi-year programme to build an integrated global workforce platform. The programme aims to deliver efficiency through automations and integrates several back-office systems across multiple geographies and business units. The Pay & Bill stream is central to this platform ensuring workers are paid correctly, clients are billed accurately, and the business has full financial visibility across multiple currencies and jurisdictions. This stream requires an exceptional business analysis to bridge business requirements, regulatory considerations, and technical implementation across several integrated systems.

The Pay & Bill Business Analyst will be the analytical engine of the Pay & Bill stream.

You will own the end-to-end requirements lifecycle from discovery and stakeholder workshops through to acceptance criteria, test support, and post-delivery validation. Working closely with the Pay & Bill Delivery Manager, development teams, integration architects, and third-party technology partners, you will ensure that business requirements are translated into precise, buildable, and testable specifications. This is a hands-on, highly collaborative role requiring analytical rigour and the ability to navigate a complex, fast-moving programme environment where multiple systems, teams, and stakeholders intersect.

This role is remote, with travel into the London office as and when required

What You’ll Be Doing

• Lead requirements gathering globally across all Pay & Bill capabilities including payroll automation, system integrations, time and attendance, expense and leave management, invoice consolidation, and multi-currency processing ensuring all requirements are complete, traceable, and signed off before development begins.
• Facilitate structured discovery workshops with business and technical stakeholders to surface, challenge, and refine requirements across all workstreams.
• Produce and maintain high-quality BRDs, functional specifications, process flows, data dictionaries, and user stories with clear, testable acceptance criteria.
• Own the Pay & Bill requirements backlog, managing traceability throughout delivery and evidencing outcomes at review points.
• Analyse current-state pay and bill processes across business units including legacy processes from mergers and acquisitions identifying gaps, inefficiencies, risks, and compliance considerations.
• Design future-state processes reflecting the target platform architecture, from time capture through to payroll processing and invoice generation, producing AS-IS and TO-BE process maps (inc. data flow maps) at the depth for development and test teams
• Identify and document all business rules governing payroll calculations, currency conversion, expense approvals, leave accruals, billing logic, and jurisdiction-specific regulatory requirements.
• Lead the definition and documentation of the Pay & Bill Target Operating Model, mapping current-state capabilities, identifying gaps against the target state, and translating TOM principles into actionable requirements and system specifications.
• Ensure integration decisions, system design choices, and workflow automations are continuously evaluated against the TOM, flagging deviations or technical debt risks before they are built in.
• Document and maintain all TOM artefacts, including operating model narratives, capability maps, RACI matrices, and process ownership definitions as living documents throughout the programme.
• Contribute to change impact assessments, working with the Delivery Manager and business stakeholders to identify what needs to change operationally at each phase of delivery.
• Define interface requirements between the time and attendance system, the core CRM platform, and the payroll aggregator, working closely with the integration and API team.
• Analyse data flows across systems, produce data mappings, and identify data quality issues that could affect payroll accuracy, billing integrity, or reporting.
• Contribute to data migration requirements where historical payroll or financial data needs to be transferred into new systems.
• Act as the day-to-day business liaison for the Pay & Bill stream maintaining relationships with Finance, Payroll Operations, Client Services, and IT, and facilitating sign-off on requirements and design decisions.
• Define test scenarios, UAT scripts, and acceptance criteria; coordinate UAT with business stakeholders; and conduct post-deployment validation to confirm solutions meet requirements in production.
• Maintain accurate BA artefacts in line with the programme's governance framework, identifying and flagging scope changes with clear impact assessments.
• Contribute to the stream RAID log, surfacing risks and assumptions that emerge through requirements and design analysis.