Senior Human Resources Generalist
MKS Instruments· enterprise· Manufacturing· Aug 31, 2026 · 2mo ago
Irvine, CA
In office
Full-time
Senior
$90K–$110K
5+ years exp
Job description
A Day in Your Life at MKS:
As the Senior HR Business Partner, People Relations, you will serve as the primary site-based HR partner for employees and leaders, fostering a positive workplace culture, addressing employee relations matters, and driving local talent initiatives, strengthening employee engagement, and helping teams grow and succeed while fostering a culture of accountability, innovation, and continuous improvement.
This role partners closely with site leadership and HR colleagues to support employee engagement, performance, development, compliance, and organizational effectiveness while ensuring consistent employee experience aligned with company values and business objectives. In this role, you will report to the HR Manager, People Relations (PSD/MSD).
You will supervise and develop an Associate HR Generalist.
You Will Make an Impact By:
Partnering with the General Manager and site leadership to support workforce planning, organizational effectiveness, employee engagement, change management, leadership development, and other people initiatives that drive business success.
Serving as the primary employee relations partner for the Irvine site, proactively addressing workplace concerns through coaching, conflict resolution, investigations, corrective actions, employee meetings, exit interviews, and other employee relations activities while ensuring fair, consistent, and compliant outcomes.
Coaching and developing leaders on employee relations, performance management, communication, policy interpretation, leadership effectiveness, talent development, and succession planning to strengthen organizational capability.
Driving employee engagement and workplace culture initiatives by analyzing employee feedback, engagement survey results, workforce trends, and other talent metrics to develop and implement action plans that enhance the employee experience and organizational effectiveness.
Ensuring compliance with employment laws, company policies, and HR processes while maintaining appropriate documentation, leveraging Workday and workforce data to identify trends, provide insights, and support informed decision-making.
Collaborating with Global HRBPs, HR Centers of Excellence, and People Operations to implement enterprise talent processes, connect employees and managers to the appropriate HR resources, and lead site and enterprise HR projects that support business objectives and continuous improvement.
Skills You Bring:
Bachelor s degree in Human Resources, Business Administration, Organizational Development, a related field, or equivalent experience
5 years of progressive HR experience.
Demonstrated employee relations expertise, including conducting investigations, resolving workplace conflicts, administering corrective actions, and interpreting company policies and employment laws. Experience with reductions in force.
Strong business partnership, coaching, and influencing skills with the ability to build credibility and effectively support leaders at all levels of the organization.
Experience supporting employee populations in manufacturing, operations, engineering, or product development environments, with a working knowledge of federal, state, and local employment laws and HR compliance requirements.
Ability to leverage workforce data and HR metrics to identify trends, develop solutions, and drive improvements in employee engagement, retention, and organizational effectiveness.
Excellent communication, facilitation, project management, and problem-solving skills, with the ability to manage multiple priorities, navigate sensitive and confidential situations, drive change, foster a positive workplace culture, and support talent-related initiatives.
Preferred Skills:
Master s degree in Human Resources, Business Administration, Organizational Development, or a related field.
PHR, SPHR, SHRM-CP, or SHRM-SCP certification.
Experience conducting workplace investigations and managing complex employee relations issues in California.
Experience leveraging Workday HRIS, engagement survey platforms, and workforce analytics to drive business decisions.
Demonstrated success partnering with HR Centers of Excellence (Talent Management, Compensation, Talent Acquisition) and HR Business Partners in a matrixed organization.
Experience supporting organizational change initiatives, workforce planning, talent reviews, succession planning, and leadership development programs.
Experience supporting large employee populations within a manufacturing or operational site environment.
Supervisory Scope:
Directly supervise and develop one HR team member in Irvine
In addition to the above responsibilities, the following are considered material job duties of the position:
Ability to take and follow directions and instructions.
Ability to interact with other employees, customers, suppliers, vendors, or the public, in a safe, professional, and respectful manner.
Access to sensitive and confidential business systems and software, personally identifying information, the company’s financial information, and/or the ability to maintain physical security and safety.
Because this position involves the above material job duties, trustworthiness, reliability, and good judgment also are material job duties.
Physical Demands and Working Conditions:
Perform activities such as sitting, standing, or typing for extended periods of time
Regularly requires good manual dexterity and coordination
Ability to remain in a stationary position for 65% of the time
Must be able to communicate information and ideas so others will understand
Must be able to exchange accurate information
The ability to observe documents and details at close range (within a few feet of the observer)
Operates in a professional office and manufacturing environment
Constantly operates a computer and other office productivity machinery
Noise level in the work environment is usually average
We are interested in a qualified candidate who is eligible to work in the United States. However, we will not be sponsoring work visas for this position, at this time.
MKS is an equal opportunity employer, including disability, veteran status and all categories protected by law. Please review our EOE statements for additional details. MKS is generally only hiring candidates who reside in states where we are registered to do business.
MKS will consider qualified applicants with a criminal history pursuant to the California Fair Chance Act and the Los Angeles County Fair Chance Ordinance for Employers.
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Compensation and Benefits:
Salary Pay Range: $90,000 to $110,000 per year. This range is a good faith estimate of the expected salary range for this position, based on a wide range of factors including qualifications, experience and training, operational and business needs and other considerations permitted by law. At MKS, it is not typical for an individual to be hired at or near the top of the range for the role.
Bonus: This position is eligible for a discretionary annual bonus, in an amount to be determined by MKS [or as applicable].
Benefits: MKS offers a comprehensive benefits package, including health insurance coverage (medical, dental and vision), 401(k) with company match, life and disability insurance, 12 paid holidays, sick time, 15 paid vacation days, [6 weeks fully paid] parental leave, adoption assistance and tuition reimbursement [and for participation in any stock programs, signing bonus, etc.].
Globally, our policy is to recruit individuals from wide and diverse backgrounds. However, certain positions require access to controlled goods and technologies subject to the International Traffic in Arms Regulations (ITAR) or Export Administration Regulations (EAR). Applicants for these positions may need to be “U.S. persons.” “U.S. persons” are generally defined as U.S. citizens, noncitizen nationals, lawful permanent residents (or, green card holders), individuals granted asylum, and individuals admitted as refugees.
MKS Inc. and its affiliates and subsidiaries (“MKS”) is an affirmative action and equal opportunity employer: diverse candidates are encouraged to apply. We win as a team and are committed to recruiting and hiring qualified applicants regardless of race, color, national origin, sex (including pregnancy and pregnancy-related conditions), religion, age, ancestry, physical or mental disability or handicap, marital status, membership in the uniformed services, veteran status, sexual orientation, gender identity or expression, genetic information, or any other category protected by applicable law. Hiring decisions are based on merit, qualifications and business needs. We conduct background checks and drug screens, in accordance with applicable law and company policies. MKS is generally only hiring candidates who reside in states where we are registered to do business.
MKS is committed to working with and providing reasonable accommodations to qualified individuals with disabilities. If you need a reasonable accommodation during the application or interview process due to a disability, please contact us at: accommodationsatMKS mksinst.com .
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Benefits
Benefits detected in the listing.
Health Insurance
Dental
Vision
401(K)
Parental Leave