Tierra is a member of Orrick’s award-winning Employment Litigation group. She represents large corporations and emerging companies in high stakes employment litigation including class actions and complex single-plaintiff disputes. Tierra has extensive experience litigating cases involving wage-and-hours laws, discrimination, harassment, and wrongful termination.

She also maintains a robust employment law counseling practice that includes helping her clients develop, or improve, their diversity, equity, and inclusion programs and policies.

Tierra devotes a portion of her practice to providing pro bono services to nonprofit organizations and low income individuals. She also serves in several leadership roles at Orrick, including as a leader of the Black Lawyers of Orrick affinity group and on Orrick's Associates' Committee for the San Francisco office.

Tierra received her J.D. from the University of California, Berkeley, School of Law, where she also earned a Law & Technology Certificate of Specialization as recognition for her extensive coursework in technology law.