Human Resources

General Inquiries/Field Support

For general HR inquiries, email Materials Sciences Human Resources at You will receive a reply from the HR Team member who will be handling your request.

Human Resources Team Members

Ambily Rajappan, Senior HR Division partner,, tel. 510-495-2952

Debbie Tan, HR Division partner,, tel. 510-486-6492
HR policy and interpretation, reclassifications, performance review process (PMP), probationary period reviews, position descriptions and leveling assistance, S&E case guidance, limited appointments, rehired retirees, and faculty hires.

Kenneth Tramiel, Jr., HR Assistant;, tel. 510-486-6407
Assistance with routine questions. Status and effort changes, SPOT awards, and employment verifications

Additional Resources

Hiring: To initiate a hire, please complete the New Hire Request Form. If you need assistance filling out the form, please contact our HR Service Center, 510-486-4772.

Job Openings: Anyone interested in employment in MSD should visit the Berkeley Lab Careers page to see current job listings at

Terminations: Supervisors - If you have been notified that your employee will be leaving the Lab, please complete the Ending Employment - Resignations or Expiring Appointments page.

Affiliates (Formerly known as Guests): To initiate an affiliate appointment, please complete the New Hire Request Form.

If you have questions about Affiliates or to terminate an affiliate appointment, please email

Benefits: For information regarding benefit plans, claims/billing, COBRA, death reporting, eligibility, enrollment, flexible spending accounts, inter-campus transfers, leave of absence, legal, life changing events (birth/adoption, marriage, divorce death, employment status), urgent requests, medicare eligibility, plan providers, premium costs), please visit the Benefits web page or contact the Benefits Department directly at 510-486-6403 or

Retirement: For questions regarding retirement or to initiate retirement, please contact the Retirement Administrative Service Center (RASC) at 800-888-8267. You can also visit their web page.

Visas: For visa related questions regarding MSD employees, please contact Larry Guo in our International Research and Scholars Office (IRSO) at 510-486-6514 or

For general visa processing questions, please contact

Career Paths: For information regarding career paths for scientific staff, please contact Berkeley Lab Human Resources.