Human Resources Generalist

ATOMS Careers page; Phoenix (AZ); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Disability Insurance

Life Insurance

401(k)

Equity

Sick Time

Unlimited PTO

Paid Holidays

Job summary

Atoms is seeking a HR Generalist to support employees and leaders through HR processes including onboarding, offboarding, workers’ compensation, and employee relations in our Phoenix office. You will own key HR workflows, maintain data accuracy in HRIS, run reports, assist payroll, advise managers, and collaborate with operations on workforce planning and process improvements.

This role requires a service mindset, strong attention to detail, and the ability to navigate a fast-paced startup

Qualifications

• 2-4 years of Human Resources experience in Logistics, Start-up, or related field.
• Associates Degree required; Bachelor's degree preferred
• Proficient with payroll management and HRIS systems
• Experience handling workers’ compensation cases is a plus
• Excellent communication and organizational skills
• Ability to handle confidential information with tact and professionalism

Responsibilities

• Maintain HRIS and employee data with accuracy and reporting readiness.
• Serve as a trusted resource on HR policies, benefits, and workplace expectations.
• Manage onboarding workflows and ensure compliant new hire experiences.
• Own employee relations process including intake, documentation, and escalation.
• Review attendance and time-off records for payroll accuracy.
• Coordinate workers’ compensation claims with operations and insurers.
• Conduct audits to ensure compliance across HR focus areas.
• Collaborate with operations on workforce planning and process improvements.
• Pull payroll reports and resolve discrepancies with Finance.

Skills

Interpersonal skills

Communication

Organizational skills

Attention to detail

Confidentiality

Microsoft Office

Education

Associates Degree

Bachelor's degree preferred

Tools

HRIS

Payroll software

Office 365

Job description

Atoms is building the machines that power the next era of progress.

Over the last decade, software has transformed the digital world. But the physical world, where food is made, minerals are mined, goods are moved, and industries are run, remains far less intelligent, far less efficient, and far more constrained. We’re changing that.

Atoms builds Physical AI— real-world robots for the industries that move civilization forward, starting with food, mining, and transport. Our systems are designed to understand, predict, and control the real world with precision, turning complex physical operations into something more reliable, more scalable, and more productive.

This work requires more than robotics. It requires deep integration across hardware, software, AI, operations, manufacturing, and real estate. We don’t just build machines in a lab. We deploy them into real environments, operate them, learn from them, and improve them until they work at scale.

We are roboticists, engineers, operators, and builders. We believe the next great technology companies will not only transform information, but the physical systems that shape everyday life.

If you want to work on hard problems with real-world impact, join us.

About the role

The HR Generalist will play a critical role in supporting employees and leaders through thoughtful HR processes and proactive problem-solving. This position will contribute directly to business operations by owning key HR workflows, maintaining accurate data, and ensuring compliance across multiple employment areas — including onboarding, offboarding, workers' compensation, and employee relations support. The ideal candidate brings a service mindset, strong attention to detail, and the ability to think critically in a fast-paced environment.

What you’ll do

• Maintain HRIS and employee data systems with a focus on accuracy, consistency, and reporting readiness.
• Serve as a trusted resource to employees and managers, providing guidance on HR policies, benefits, and workplace expectations.
• Manage onboarding workflows to ensure a smooth and compliant new hire experience, including HRIS setup, policy acknowledgment, and process optimization.
• Own the employee relations process, including intake, documentation, resolution tracking, and identifying trends for escalation to HR leadership as needed.
• Support the review of employee attendance and time-off records to ensure accuracy for payroll and compliance purposes.
• Coordinate workers’ compensation claims in collaboration with operations and insurance partners, ensuring timely documentation, compliance, and resolution tracking.
• Conduct regular audits across HR focus areas — including employee files, I-9s, headcount records, payroll data, and benefits eligibility — to ensure ongoing compliance and operational accuracy.
• Collaborate cross-functionally with operations leadership to support workforce planning, organizational changes, and process improvement initiatives.
• Pull payroll reports and verify employee data for accuracy prior to submission to Finance for processing; follow up on discrepancies as needed.
• Act as a liaison between employees and benefits providers, such as health insurance and retirement plan vendors, ensuring timely communication of benefits information.
• Generate and analyze HR reports related to headcount, attrition, leave trends, and other key metrics to support business decisions.
• Participate in policy updates and internal HR communications, helping ensure employees are informed and aligned.
• Support HR projects and contribute to a culture of continuous improvement across the department.
• Advise managers on HR-related matters, offering solutions that balance company policy, culture, and business objectives.
• Own the offboarding process, including termination entries, final pay updates, and system deactivation — with an emphasis on ensuring complete and accurate removal to prevent rostering or operational discrepancies.
• Perform other administrative duties as assigned to support the overall efficiency of the Human Resources department and day-to-day operations.

What we're looking for

• 2-4 years of Human Resources experience in Logistics, Start-up or related field.
• Equivalent combination of education and experience accepted; higher levels of education may substitute for required experience
• Associates Degree required with Bachelors degree preferred
• Proficient with or the ability to quickly learn payroll management, human resource information system (HRIS), and similar computer applications.
• Hands-on experience handling workers’ compensation cases from intake to resolution.
• Excellent interpersonal skills with the ability to manage sensitive and confidential situations with tact, professionalism, and diplomacy.
• Clear, confident communication skills, both written and verbal.
• Excellent organizational skills and attention to detail.
• A deep care for doing great work and taking pride in the details — you raise the bar for yourself and others.
• Proficient with Microsoft Office Suite or related software.
• Experience working with Transportation Network Company (TNC) guidelines is preferred but not required.

At Atoms, you’ll work on one of the defining challenges of our time—bringing automation into the physical world to drive real, lasting impact. We exist to uncover valuable unknown truths and turn them into progress, which means constantly pushing beyond what’s known and building what doesn’t yet exist. The work is ambitious and often challenging, but it’s grounded in a shared sense of purpose and a team committed to seeing it through together. Our work only matters if it serves others, and we know that meaningful progress depends on the trust of the people we serve and the strength of our team—so we invest in both, creating an environment where you can do your best work and grow.

What else you need to know

This role is based in our Phoenixoffice. Atoms is a company driven by invention and continuous change - we are constantly reimagining our industries, building new products, and refining how we operate. We do our best work together. That’s why all of our office-based teams work onsite, five days a week.

The base salary range for this role is $90,000 - $110,000 per year.

Actual compensation will be determined on an individual basis and may vary depending on experience, skills, and qualifications.

Base salary is just one part of your total rewards package. You may also be eligible for equity awards.

Benefits Summary (USA Full-Time Exempt Employees):

• Medical, Dental, Vision, Disability, and Life Insurance
• Flexible Spending Account / Health Savings Account Options
• 401(k)
• Equity
• Sick Time, Unlimited Flexible Time Off, and Paid Holidays

Benefits are subject to change at the company's discretion.
Atoms accepts applications on an ongoing basis.

Ready to join us as we serve those who serve others?

#LI-Onsite

As set forth in ATOMS Careers page’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.