Six Figure Work

HR Business Partner - Technology

Mill

Company websitemill.com (Mill, opens in new tab)

Base salary $185K  to $210K

Employer-published annual base salary, USD. Advertised base range in San Bruno, CA

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  • LocationSan Bruno, CA
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (55 min ago) · observed since

About this job

Mill is a waste prevention technology company reimagining what it means to eliminate waste, starting with food. We build smart systems and infrastructure for homes, businesses, and municipalities that transform food scraps from landfill-bound waste into valuable resources, including chicken feed. Tens of thousands of Mill’s residential food recyclers are already helping households divert millions of pounds of food scraps every year, paving the way for our upcoming launch of Mill Commercial—the industry’s first end-to-end solution for managing, understanding, and preventing food waste in commercial environments (e.g. grocery, restaurants, food services). At Mill, we are passionate about building easy-to-use, beautifully designed technologies that keep food in the food system and out of landfills.

About the role

As our HR Business Partner, you will start as the People partner to our hardware, software and product teams. You will work with engineering leaders, from seasoned to newly promoted, on how their teams grow, how their managers lead and how performance is judged. Our head of engineering comes from hardware, our software team is growing, and our commercial product is ramping up, so your work will change as the roadmap does. As Mill grows, we expect the role to reach other teams across the company.

You will report to our Head of People and work every day with our recruiting and People Operations teams. We are looking for someone who is at ease with engineers, direct in conversation and happy to move between strategy and the task that needs doing.

What you will do

  • Be the first call for engineering and product leaders on team design, hiring plans, performance and employee relations.
  • Coach managers, from first-time to experienced, on setting expectations, giving direct feedback and developing their teams.
  • Run the engineering side of our performance, promotion and talent review cycles, and help leaders calibrate across hardware and software.
  • Work with Recruiting on engineering hiring plans, role levels and how new hires get up to speed.
  • Partner with Legal and outside counsel on work authorization for the engineering team, including visa renewals, sponsorship.
  • Help leaders plan team changes as we move into launch, including backup plans for critical roles.
  • Build on our manager development program with material for technical leaders.
  • Use data such as attrition, ramp time and engagement to spot issues early and propose practical fixes.
  • Be instrumental in helping shape our performance and compensation philosophy as we grow.
  • Join company-wide People work with the rest of the team, and pick up other projects as we grow. No task is too small.

Your first 3 to 6 months

  • Know our engineering and product leaders and their teams, and share a clear view of where people support matters most.
  • Solve a real problem that engineering leaders name early, so they see the value of the role quickly.
  • Become the day-to-day People partner for engineering managers, including performance and employee relations conversations.
  • Help build the hiring, succession and ramp-up plan for critical engineering roles, with Recruiting and the head of engineering.
  • Take a lead role in the next performance and talent review cycle for engineering, including calibration across hardware and software.
  • Share your point of view on our performance and compensation philosophy, and help us shape it.

What you bring

  • 10+ years of experience as an HR business partner or HR generalist, ideally with engineering, hardware or product teams in a growing company.
  • Credibility with technical leaders, and comfort having brave, direct conversations with them.
  • Hands-on experience coaching managers and running performance and talent review cycles.
  • Sound judgment on employee relations, including when to bring in Legal or a specialist.
  • Comfort with ambiguity, and the ability to zoom between high-level strategy and detail in the same day.
  • Skill using data to tell a clear story, in a small meeting and in front of the whole company.
  • Working knowledge of US employment law and work authorization, including visa sponsorship and renewals. Experience supporting teams in more than one country is a plus.
  • Interest in Mill's mission to prevent waste.

The estimated base salary range for this position is $185k to $210K, which does not include the value of benefits or a potential equity grant. A wide range of factors are considered in making compensation decisions, including but not limited to skill sets, market conditions, experience and training, licensure and certifications, and business and organizational needs.

Source: Mill on Greenhouse · View original posting (opens in new tab)

Pay in context

This role's base floor ($185,000) is above 83% of the 583 HR & Recruiting roles in California listed on this site; 4 others list the same floor. Their median floor is $150,000; the middle half runs from $125,500 to $172,000.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 8, 2026.

This range next to 6 other live Mill roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Mill roles with the nearest advertised base floor
RolePublished base
HR Business Partner - Technology (this listing)$185K - $210K
Firmware EngineerFrom $185K
Data Engineer - Data Platform$185K - $210K
Technical Program Manager, Hardware Operations$185K - $210K
Software Applications & Data Program Manager$185K - $210K
Senior Mechanical Global Supply Manager$190K - $220K
Operations Program Manager, Manufacturing Readiness$195K - $225K

Same $100K to $400K scale as every card. All Mill roles · How to read the bar

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-11-03
Where this pay comes from

Location as the employer wrote it: San Bruno, California

The estimated base salary range for this position is $185k to $210K, which does not include the value of benefits or a potentia

Method
Employer text, read with fixed rules and re-verified
Checked
Rule set
us-base-v2

The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.

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