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Mainstay Implementations:
Go Live. Stay Live.
Systems That Work the Way Your People Do
Partnering to get you live & keep you there
We run end-to-end implementations that convert decisions into daily practice. Configuration, data migration, testing, training and adoption design — every activity is measured against real usage and business outcomes. We work with large enterprises and scaling organisations who expect fast, low-risk deployments.

We deliver:

  • Clean configuration aligned to your operating model, not templates.
  • Controlled data migration and reconciliation for a single trusted dataset.
  • Adoption, role-based training and early-life support to lock behaviour.
Discovery
Rapid mapping of systems and ways of working.
Config
Platform set-up tuned to your decisions
Migration
Data reconciliation and accuracy checks
Testing
End-to-end UAT and acceptance criteria
Adoption
Role-based training and manager enablement
Stabilise
Hypercare and transition to AMS
How we deliver results
We blend delivery expertise with human-centered adoption, turning tech into tangible work changes that drive efficiency and engagement. Our process integrates rapid insights with seamless transitions, fostering lasting transformation without disruption.
Discovery Sprints
We run short, evidence-led assessments to identify risks early and refine strategies for confident progress.
Go-Live & Stabilization
Then we orchestrate controlled cutovers focused on business continuity, with real-time support to stabilize and optimize.
How We Partner With You
We don’t only hand over code — we embed operational practices so your platform keeps delivering
Targeted Advisory
Implementation health checks and cutover reviews
Project Consulting
Dedicated implementation teams for fixed scopes
Retainer Support
Post-go-live optimisation and roadmap delivery
Mainstay’s Darwinbox services—across implementation and managed services—have helped ensure continuity, clarity, and confidence well beyond go-live.
Mohan Joshi
Head - Total Reward, StoneX Global
Let's build something together

Whether you’re ready to transform or just exploring options, we’re here.

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