Senior Project Manager - Enterprise Onboarding (Hybrid)

Expian; Greater London; Hybrid; GBP 55,000 - 70,000; Full time

Benefits offered by this job

Private health

Pension

26 days holiday plus bank holidays

Job summary

Expian, a London-based SaaS provider, is seeking a Project Manager for Client Onboarding to lead enterprise onboarding projects from contract to live operations. The role blends client-facing governance with technical orchestration, ensuring scope, schedule and budget compliance across integrations, data migration, and go-live readiness.

Based in London with hybrid office days and travel to client sites, you will coordinate with product, engineering, and customer success teams to deliver

Qualifications

• 5+ years of project management experience delivering software implementations for enterprise organisations.
• Experience coordinating with client teams and third-party vendors.
• Technical fluency across API-first architectures, integration patterns (REST, webhooks), environments, and data migration.
• Track record of on-time, on-budget delivery using disciplined scope and change control.
• Excellent written and verbal communication skills with executives and engineers.
• Outstanding organisational skills to manage plans, dependencies, risks, and actions.
• Calm under pressure when managing go-lives tied to fixed real-world dates.

Responsibilities

• Lead end-to-end onboarding from discovery to go-live.
• Define realistic project plans with milestones, dependencies and critical paths.
• Maintain scope, change control, and clear documentation across product configuration, customisation, and integrations.
• Coordinate with Expian's product, engineering, support, and commercial teams at the right moments.
• Plan data migration, validation, cutover, and hypercare activities.
• Governance through steering meetings, status reports and RAID logs.

Skills

Project management

Stakeholder management

Governance

Go-live readiness

Job description

Expian, a London-based SaaS provider, is seeking a Project Manager for Client Onboarding to lead enterprise onboarding projects from contract to live operations. The role blends client-facing governance with technical orchestration, ensuring scope, schedule and budget compliance across integrations, data migration, and go-live readiness.

Based in London with hybrid office days and travel to client sites, you will coordinate with product, engineering, and customer success teams to deliver