Systems Engineer M&A

Core Weave is The Essential Cloud for AI™. Built for pioneers by pioneers, Core Weave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, Core Weave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, Core Weave became a publicly traded company (Nasdaq: CRWV) in March 2025.

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The People Systems M&A team partners across People, IT, Finance, Legal, Security, and Corporate Development to enable seamless workforce transitions during mergers, acquisitions, and divestitures. This team is responsible for integrating people, data, and systems into Core Weave’s HR technology ecosystem while ensuring compliance, payroll accuracy, and a positive employee experience throughout periods of change.

Core Weave is seeking a highly skilled and motivated Systems Engineer, M&A – People Systems to lead and execute HR systems integrations across M&A events. In this role, you will own the technical delivery of people systems integration, from due diligence through post-close stabilization. You will design and execute Workday data migrations, configure People systems for acquired populations, and support payroll- and compliance‑critical cutovers.

This role operates in fast‑paced environments and plays a critical role in enabling Core Weave’s growth strategy.

• Lead People Systems integration efforts for M&A activities, including onboarding acquired employees into Core Weave’s HR technology ecosystem.
• Partner with Corporate Development and People teams during due diligence to assess HR systems, data structures, payroll, benefits, and compliance considerations.
• Design and execute data migration strategies into Workday HCM, including worker, job, compensation, benefits, and payroll‑related data.
• Configure and optimize Workday HCM, Payroll, Benefits, Time Tracking, Absence, and related People systems to support acquired populations.
• Plan and execute cutover activities, system testing, parallel payroll runs, and go‑live support for M&A integrations.
• Build, support, and monitor integrations between Workday and third‑party people systems, including ATS, benefits vendors, payroll providers, and learning platforms.
• Develop validation, reconciliation, and audit reports to ensure data accuracy and payroll readiness post‑integration.
• Ensure compliance with data privacy, SOX, labor, and regulatory requirements throughout the M&A lifecycle.
• Troubleshoot complex system and data issues in high‑impact, time‑sensitive environments.
• Document integration approaches, risks, and best practices to continuously improve M&A execution.

• Bachelor’s degree in Computer Science, Information Systems, HRIS, or a related field, or equivalent practical experience.
• 4+ years of experience supporting People Systems or HRIS, with hands‑on experience in Workday.
• Demonstrated experience supporting M&A‑related HR systems integrations, conversions, or large‑scale employee onboarding events.
• Strong expertise in Workday configuration, including HCM, Payroll, Benefits, Time Tracking, Absence, security, and reporting.
• Experience using EIBs, Calculated Fields, and Workday Web Services (REST/SOAP APIs).
• Proven understanding of people data governance, security, and compliance requirements in an M&A context.
• Experience managing multiple integrations, timelines, and system dependencies concurrently.

• Experience with Workday Studio.
• Experience supporting global or multi‑entity M&A integrations.
• Familiarity with automation tools or process optimization within HR or People Systems.

We believe in investing in our people and value candidates who bring diverse experiences to our teams—even if you don’t meet 100% of the requirements. This role tends to be a great fit if:

• You love owning complex system integrations with real payroll and compliance impact.
• You’re curious about how people data, systems,…