![Jessica Tseng Hasen](/sites/default/files/styles/portrait_4x5_360x450_1x/public/2024-08/Jessica%20Tseng%20Hasen.jpg?itok=J5bnDTm0)
![Jessica Tseng Hasen](/sites/default/files/styles/portrait_4x5_360x450_1x/public/2024-08/Jessica%20Tseng%20Hasen.jpg?itok=J5bnDTm0)
Jessica Tseng Hasen
- ESS Senior Counsel
Jessica's practice sits at the intersection of legal practice and technology.
Jessica Tseng Hasen is passionate about leveraging technology to optimize client outcomes in a defensible and efficient manner and approaches leading-edge e-discovery problems with a multidisciplinary understanding of the legal and business issues that matter most to her clients.
Jessica is known for her work on high-stakes, complex matters, including a matter involving over 55 million records, multiple multidistrict litigations, and investigations by several regulatory agencies and legislative bodies; and a Technology Assisted Review (TAR) of one million documents in two months in response to a Hart-Scott-Rodino second request.
Jessica's experience includes strategic e-discovery counseling and TAR workflow design for complex commercial litigation; voting rights and redistricting litigation; copyright, patent, and trade dress infringement; U.S. Securities and Exchange Commission (SEC) and U.S. Department of Justice investigations; qui tam actions; internal corporate investigations; Federal Trade Commission merger evaluations and second requests; and antitrust matters. Jessica frequently collaborates with merits and local counsel on such matters and advocates for her clients during discovery conferences and meet and confers.
A regular speaker and writer about e-discovery and legal technology issues, Jessica is a leader of Perkins Coie's E-Discovery Services & Strategy practice. Outside of her e-discovery practice, Jessica works with clients on litigation readiness and information governance projects. Her active pro bono practice includes work on civil rights litigation and trafficking in forced labor cases.
Before joining Perkins Coie, Jessica worked in the in-house legal departments of two Fortune 20 technology companies, focusing on product liability issues. She is a proud first-generation American, a lifelong Seattleite (besides a yearlong sabbatical spent teaching English in Madrid, Spain), and mom of two young children.
Areas of focus
Education & Credentials
Education
- Seattle University School of Law, J.D., cum laude
- University of Washington, B.A., History; Political Science
Bar and Court Admissions
-
Washington
- U.S. District Court for the Western District of Washington
Impact
Professional Leadership
- The Sedona Conference, WG1, Brainstorming Group on Possession, Custody or Control, 2023-present
- Relativity Attorney Advisory Board, 2022-present
- The Sedona Conference Working Group on Electronic Document Retention and Production (WG1), Member
Community Involvement
- Legal Voice, Volunteer, 2008-present
- Legal Voice, Chair, Raise Your Voice Committee, 2011-2013
- International Legal Technology Association, Member, 2012-present