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Project Manager - SaaS Implementation - ATS/HRIS

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Senior Project Manager — SaaS Implementation (HR & Recruitment Systems) 6-month FTC (likely extending to 12) Central London, hybrid (2 days/week)

I’m recruiting a Senior Project Manager for a well-established London charitable social enterprise — 1,200 people across 40+ sites — building out a newly created project delivery function.

You’d lead the end-to-end implementation of a new recruitment platform (ATS): vendor selection, requirements, configuration, data migration, UAT, training, rollout and adoption. Off-the-shelf SaaS, implemented properly — this is not a custom build.

What you’ll own:

  • The full delivery lifecycle: scope, plans, budgets, risks and dependencies, from discovery through to handover and post-go-live improvement
  • Vendor selection, then the vendor relationship — contracts, commercials, invoices, and holding them to account on quality and timelines
  • Proper governance: RAID logs, RAG reporting, roadmaps and weekly status reports, planned in MS Project or Smartsheet
  • The BA work too — this is a small team, so you’ll gather user requirements and map journeys, workflows and processes yourself
  • Data migration involving sensitive personal data, with a genuine working understanding of GDPR and migration risk
  • Change and adoption across an organisation that’s new to project management — comms, training, and bringing people with you across 40+ sites

You’ll need:

  • Extensive experience in end-to-end SaaS implementation delivery (this is a senior role)
  • HR or recruitment systems experience — HRIS or ATS: Workday, SuccessFactors, iTrent, Oracle, Fieldglass or similar (desirable)
  • Waterfall delivery in structured, regulated or data-sensitive environments
  • Real vendor management, including contract and budget ownership
  • Exceptional documentation — statements of work, timing plans, process maps
  • To be London-based and happy in the office 2 days a week (more during training and rollout), with a DBS check

This probably isn’t for you if your background is agile product delivery, building custom software with dev teams, or on-prem-to-cloud infrastructure migration.

Interviewing immediately.

Apply here or message me directly. Please confirm where you’re based, your right to work in the UK (no sponsorship available), and whether you’ve already applied to a role like this directly (so we don’t duplicate an application).

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Contract Type: Temporary

Specialism: Projects & Transformation

Focus: Project Manager

Industry: Not for Profit and Charities

Salary: pro-rata'd

Workplace Type: Hybrid

Experience Level: Senior Management

Location: London

Job Reference: 1JG5AC-69645354

Date posted: 7 August 2026

Consultant: Simrah Rehan