Introduction

At Gallagher Benefit Services, you’re a trusted partner to organizations navigating some of their most important people decisions. We help clients build better workplaces, where people feel supported, empowered, and inspired to thrive. Whether it’s shaping benefit strategies, designing wellbeing programs, or advising on workforce challenges, the work you do here creates meaningful change for businesses and the people who power them. We’re a community of bold explorers, trusted experts, and compassionate partners; working side by side to solve problems, and shape the future of work. Here, curiosity is encouraged, collaboration is second nature, and your ideas have room to grow. If you’re looking for a place where your contribution matters and where you can help build a better world of work; think of Gallagher. 
Overview

Project Manager, HR Integration & Change Management

We are seeking an experienced Project Manager to lead and coordinate all HR workstreams to integrate ~2,500 people into Gallagher’s GBS (Gallagher Benefit Services) US Division.

 

This role will ensure HR deliverables are executed seamlessly and aligned with the broader business and cross-division functional integration plan. Key areas include organizational design, role mapping, compensation alignment, learning and development, data management and integrity, and employee engagement throughout the lifecycle of the integration. A critical component is driving change management to foster cultural alignment and win the hearts and minds of transitioning employees.

How you'll make an impact

Key Responsibilities

Integration Planning & Governance

• Develop and maintain a master HR integration plan with clear milestones, dependencies, and risk mitigation strategies.
• Oversee all HR workstreams and ensure their deliverables are integrated into the overall business and cross-division functional integration roadmap.
• Establish governance cadence (workstream meetings, SteerCo updates) and maintain dashboards for executive reporting.

HR Workstream Oversight

• Organizational Design: Align structures, roles, and reporting relationships.
• Compensation: Harmonize pay structures, incentive plans, and job leveling.
• Learning & Development: Design onboarding and leadership development programs.
• Data Cleanup: Ensure accuracy and consistency of employee data across systems.
• Employee Engagement: Develop strategies to foster belonging, trust, and cultural alignment.

Change Management Leadership

• Create and execute a comprehensive change management strategy for HR-related integration activities.
• Partner with Internal Communications to deliver clear, timely messaging to employees and leaders.
• Develop manager toolkits, FAQs, and engagement campaigns to support adoption.
• Conduct readiness assessments, pulse surveys, and feedback loops to measure sentiment and adjust plans.

Stakeholder Engagement

• Serve as the central point of coordination for HR integration activities.
• Build strong relationships with executive sponsors, functional leaders, and acquired company leadership.
• Drive decision-making and accountability across matrixed teams.

About You

Required Qualifications

• Bachelor's degree (or commensurate experience) and 6-7 years of related experience, ideally in HR integration or large-scale organizational change
• Project Management experience with a demonstrated ability to lead multiple projects at the same time, or large projects with multiple work streams
• Demonstrated ability to work effectively and build relationships with internal and external stakeholders at all levels within the organization as well as drive impact without direct authority
• Subject Matter Expertise in all disciplines within the HR function including a strong understanding of compensation frameworks, org design principles, and L&D strategies
• Experience with building and/or managing Human Resources business processes and practices
• Proven expertise in change management
• Exceptional communication and facilitation skills including experience communicating potentially challenging messages to a global employee population using varied communication vehicles
• Advanced proficiency in project management tools (MS Project, Smartsheet, Teams)
• MBA or PMP a plus.

Competencies

• Change Leadership: Skilled at driving adoption and engagement.
• Strategic Thinking: Sees interdependencies and plans holistically.
• Empathy & Influence: Builds trust and motivates teams through uncertainty.
• Data-Driven: Ensures accuracy and uses insights to guide decisions.

Success Metrics

• HR integration milestones delivered on time and within budget.
• Employee engagement scores and cultural alignment indicators.
• Compensation harmonization completed accurately.
• Org design implemented with minimal disruption.
• Training completion rates and onboarding effectiveness.
• Data integrity achieved across all systems.

Compensation and benefits

We offer a competitive and comprehensive compensation package. The base salary range represents the anticipated low end and high end of the range for this position. The actual compensation will be influenced by a wide range of factors including, but not limited to previous experience, education, pay market/geography, complexity or scope, specialized skill set, lines of business/practice area, supply/demand, and scheduled hours. On top of a competitive salary, great teams and exciting career opportunities, we also offer a wide range of benefits. 

Below are the minimum core benefits you’ll get, depending on your job level these benefits may improve:

• Medical/dental/vision plans, which start from day one!
• Life and accident insurance
• 401(K) and Roth options
• Tax-advantaged accounts (HSA, FSA)
• Educational expense reimbursement
• Paid parental leave

Other benefits include:

• Digital mental health services (Talkspace)
• Flexible work hours (availability varies by office and job function)
• Training programs
• Gallagher Thrive program – elevating your health through challenges, workshops and digital fitness programs for your overall wellbeing
• Charitable matching gift program
• And more...

**The benefits summary above applies to fulltime positions. If you are not applying for a fulltime position, details about benefits will be provided during the selection process.

 

We value inclusion and diversity

Click Here to review our U.S. Eligibility Requirements

Inclusion and diversity (I&D) is a core part of our business, and it’s embedded into the fabric of our organization. For more than 95 years, Gallagher has led with a commitment to sustainability and to support the communities where we live and work.

Gallagher embraces our employees’ diverse identities, experiences and talents, allowing us to better serve our clients and communities. We see inclusion as a conscious commitment and diversity as a vital strength. By embracing diversity in all its forms, we live out The Gallagher Way to its fullest.

Gallagher believes that all persons are entitled to equal employment opportunity and prohibits any form of discrimination by its managers, employees, vendors or customers based on race, color, religion, creed, gender (including pregnancy status), sexual orientation, gender identity (which includes transgender and other gender non-conforming individuals), gender expression, hair expression, marital status, parental status, age, national origin, ancestry, disability, medical condition, genetic information, veteran or military status, citizenship status, or any other characteristic protected (herein referred to as “protected characteristics”) by applicable federal, state, or local laws.

Equal employment opportunity will be extended in all aspects of the employer-employee relationship, including, but not limited to, recruitment, hiring, training, promotion, transfer, demotion, compensation, benefits, layoff, and termination. In addition, Gallagher will make reasonable accommodations to known physical or mental limitations of an otherwise qualified person with a disability, unless the accommodation would impose an undue hardship on the operation of our business.