Day one to full ramp, on autopilot.
Onboarding sets the slope of someone's entire career, yet most programs are a folder of PDFs and a prayer. Nucleus OS turns onboarding into a personalized path per role, with an AI tutor answering the questions a new hire is afraid to ask.
Built for People teams, HR operations, and hiring managers

The problem is the process, not the people.
One-size-fits-none
Every new hire gets the same deck, whatever their role, level, or experience.
Questions go unasked
New hires hesitate to interrupt busy colleagues, so they guess, and ramp slows down.
Managers fly blind
Nobody can see whether a new hire is on track until the first review.
One platform, four moves.
Create, Learn, Manage, and Analyze work on the same content, the same learners, and the same data.
What it looks like in practice.
- 01Before day one
Preboarding
Welcome, logistics, and paperwork assigned automatically when the offer is signed in your HRIS.
- 02Days 1-30
Foundations
Company, product, and role essentials, with the AI tutor available for every question.
- 03Days 31-60
Practice
Role scenarios and real tasks with feedback, adapted to what each hire has mastered.
- 04Days 61-90
Ramp confirmed
Readiness checks confirm the hire is productive, and their manager sees the evidence.
Every hire gets the attention of your best mentor.
- 30-60-90 day paths generated from your own docs
- Per role
- 30-60-90 day paths generated from your own docs
- answers for new-hire questions, in your voice
- 24/7
- answers for new-hire questions, in your voice
- ramp progress for every hiring manager
- At a glance
- ramp progress for every hiring manager
Illustrative outcomes based on typical deployments; results vary.
Connected to the tools you already run.
The connectors employee onboarding teams use most, from the 48 that ship with every plan.
HiBob
Personio
Bamboo
Gusto
Slack
Google Drive
Employee Onboarding questions, answered.
More ways teams use Nucleus OS.
See employee onboarding on Nucleus OS.
Bring one real program to a thirty-minute demo and leave with a working preview: content, tutors, and automation, running on Nucleus OS.