Senior Human Resources Generalist

Marmon Holdings, Inc.•Mesquite, TX

4d•Onsite

About The Position

TMI Climate Solutions LLC, part of the global industrial organization Marmon Holdings (backed by Berkshire Hathaway), is committed to making a positive impact, providing diverse learning and working opportunities, and fostering an empowering culture. TMI Climate Solutions has been building advanced, custom HVAC solutions for nearly 40 years. As we open our new operation in Mesquite, Texas, we are expanding our U.S. footprint and building a team to support TMI’s next phase of growth. This is an exciting opportunity to join a well-established Canadian company at the ground level of a new site launch. Our Human Resources team will be instrumental in building the culture, processes, and employee experience at this location. In this role, you will help create a workplace where employees feel supported, leaders are equipped, and the site is positioned for long-term success.

Requirements

Bachelor’s degree in Human Resources, Industrial Relations, or a related field.
Proficiency with Microsoft Office Suite; experience with HRIS systems (Workday preferred) and payroll systems (ADP WFN preferred).
Strong judgment, ethics, and confidentiality.
Excellent written and verbal communication skills.
Strong organizational, time management, and problem-solving skills.
Ability to build trust and work effectively across teams.
Attention to detail and a collaborative mindset.

Responsibilities

Serve as a trusted advisor to managers on HR policies, labor laws, performance management, talent development, and employee relations.
Recommend and support disciplinary measures when needed while ensuring fair and consistent application of policies.
Act as a resource for employees, answering questions on benefits, policies, and workplace practices.
Manage the full staffing cycle: writing job descriptions, posting roles, screening resumes, coordinating interviews, and preparing offer letters and new hire files.
Oversee onboarding and integration of new employees, ensuring a smooth transition through probation.
Identify training needs and coordinate learning and development programs.
Administer benefits enrollment, support payroll inquiries, and maintain accurate employee records in the HRIS (Workday preferred).
Partner with Health and Safety on work stoppages and collaborate with HR leadership on complex labor relations issues.
Draft HR policies, internal communications, and presentations.
Support HR projects and initiatives that enhance the employee experience.
Maintain and update the HRIS database for hires, terminations, and employee changes.