hrroles

HR Business Partner

Westlake Open · verified Oct 20, 2026
Rotterdam Part-time Mid-level HR Business Partner & Generalist

At a glance

Mid-level HR Business Partner & Generalist role at Westlake. Rotterdam · part-time · €68,000–€80,000 base.

SalaryStated by Westlake
€68,000 – €80,000
Base salary for this role, in EUR per year, as published in the posting.
RoleHR Business Partner & Generalist
SeniorityMid-level
LocationRotterdam
EmploymentPart-time
Base pay€68,000–€80,000
PostedSep 28, 2026 · 3w ago
Role brief

hrroles summary, based on the employer's posting.

What you'll do

  • Coach managers through HR matters and advise leaders on workforce plans, employee relations and organizational shifts
  • Help manage the Pernis site shutdown, including employee absence, return-to-work and WIA cases
  • Prepare Works Council consultations and approvals, while covering hiring, onboarding, development, contracts and exits
  • Advise on Dutch employment rules, reward and benefits, and workplace policies
  • Run HR initiatives with Payroll, Finance, Legal and colleagues in international HR teams

What you bring

  • At least five years in an HRBP or senior HR generalist position
  • A bachelor's or master's qualification in HR, business administration or a related discipline
  • Sound understanding of Dutch employment rules, plus absence, WIA and Gatekeeper Act casework
  • You speak Dutch and English fluently

Who this fits

This temporary assignment suits an autonomous HR professional comfortable supporting managers and directors through organizational change while handling daily HR operations. The work spans Rotterdam and Pernis, starts in November, lasts about nine months and requires 24 to 32 hours weekly.

From the employer

Westlake offers you the potential to enrich your work life and career experience in an entrepreneurial environment. We work together to enhance peoples' lives through our products and presence in the communities in which we operate.​

HR Business Partner (Temporary Assignment, Approx. 9 months)
Pernis & Rotterdam | 24-32 hours per week


Westlake Epoxy is part of Westlake Corporation and provides epoxy solutions for a wide range of industrial applications worldwide. In the Netherlands, we operate from two locations: our office in Rotterdam and our production site in Pernis.


To temporarily replace our HR Business Partner during maternity leave, we are looking for an experienced HR professional who is available from November onwards for approximately 9 months. You will support both our Rotterdam office and Pernis production site in a broad and highly autonomous HR role.


This is a unique opportunity to work in an international manufacturing environment, partnering with managers, directors and employees on both strategic and operational HR matters during a period of organizational change. A key aspect of the role will be supporting the ongoing closure process of our Pernis site.


What will you do?

This role offers a high level of autonomy and responsibility. While supported by Payroll and HR Services for payroll and system-related processes, you will have broad ownership of both operational and strategic HR activities. Ranging from employee relations, organizational change and employment law matters to contract administration, reporting and day-to-day HR support.

Your responsibilities will include:

  • Advising and coaching managers on all HR-related matters.
  • Partnering with management and directors on organizational change, workforce planning and employee relations.
  • Supporting the ongoing closure process of the Pernis production site.
  • Managing absence, reintegration and WIA-related cases.
  • Supporting the Works Council and coordinating consultation and approval processes.
  • Managing the employee lifecycle, including recruitment, onboarding, employee development, contract administration and offboarding.
  • Providing guidance on employment law, compensation & benefits and HR policies.
  • Driving HR projects and collaborating with Payroll, Finance, Legal and international HR teams.

Who are we looking for?
You are an independent and proactive HR professional who thrives in a dynamic and changing environment. You combine strong stakeholder management skills with a pragmatic approach and are comfortable partnering with managers and directors on a broad range of HR topics. You bring structure, sound judgement and the ability to balance strategic priorities with day-to-day operational demands.


In addition, you bring:

  • A minimum of 5 years of experience as an HR Business Partner or Senior HR Generalist.
  • A Bachelor's or Master's degree in Human Resources, Business Administration or a related field.
  • Solid knowledge of Dutch employment law.
  • Experience with absence management, WIA cases and the Dutch Gatekeeper Improvement Act (Wet Verbetering Poortwachter).
  • Experience with reorganizations, social plans, works councils and employment law matters is a strong advantage.
  • Fluency in both Dutch and English.
  • Experience with Workday is a plus.

What do we offer?

  • A temporary contract for approximately 9 months (interim/contractor arrangements may also be considered).
  • 24-32 working hours per week.
  • A gross annual salary between €68,000 and €80,000 on a full-time basis.
  • Bonus scheme.
  • 26 vacation days and 11 ADV days (based on full-time employment).
  • Attractive pension plan through BeFrank.
  • Hybrid working opportunities.
  • A unique HR role in which you can make a visible impact during a significant organizational transition.

Interested in joining Westlake Epoxy?
If this role excites you and you believe your experience matches our requirements, we encourage you to apply through our career’s website.
For questions regarding the position or recruitment process, please contact Anouk Molendijk at recruitment.europe@westlake.com

Westlake is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to any characteristics protected by applicable legislation.

If you are an active Westlake employee (or an employee of any Westlake affiliates), please do not apply here. You will apply via the Jobs Hub application in Workday.