郭晓晖大律师于2015年加入德辅大律师事务所。此前，他跟随王鸣峰博士，资深大律师、毛乐礼资深大律师、Michael Arthur大律师及已故的刘克荣大律师进行实习。郭大律师广泛地在民事及商事领域执业，且尤其擅长竞争法事宜。
郭大律师以第一名的身份于香港大学获得工商管理学士（法律）及法学士双学位，获得一级荣誉。在此期间，他获得众多奖学金与学术奖项。随后，郭大律师赴芝加哥大学攻读法学硕士学位，以高等荣誉毕业。他专注于竞争法/反垄断法，知识产权及法律的经济分析。毕业之后，郭大律师随即成为香港大学法律学院助理教授，并且进行竞争法的教学与研究。
近年来，郭大律师以特别顾问、实习大律师及大律师身份于竞争法领域积累了大量经验。这其中包括：
- 争议解决：以特别顾问身份协助有线电视参与通讯事务管理局初步聆讯，有线电视在此聆讯中被指称在2010年国际足协世界杯及2012年奥运会的广播权的次级许可授予中进行反竞争行为；
- 依照《竞争条例》提起的豁除或豁免申请：准备豁除或豁免申请并代表客户参与和竞争事务委员会及政府部门的会议；
- 为不同行业的客户提供有关竞争法的法律意见，包括金融、媒体、零售以及其他专业客户。
郭大律师在香港竞争法领域非常活跃。他定期主持持续专业进修讲座以及接受媒体采访，并且担任多项公职，包括香港大律师公会竞争法委员会成员、消委会竞争政策研究小组成员和香港竞争事务协会执行委员会成员。此外，郭大律师亦是国际竞争网络组织的非政府顾问。
- Middle Temple Scholarship for Advocacy Training (2015)
- Peter Vine Postgraduate Law Scholarship (2010)
- Dean’s Honours List (2005-06, 2007-08, 2009-10)
- Rowdget W Young Medal in Law (2010)
- Norton Rose Prize in Competition Law (2010)
- HSBC Overseas Exchange Scholarship (2008)
- APAA Prize in Issues in Intellectual Property Law (2008)
- HKICS Corporate Governance Paper Competition Winner (2008)
- Association of Chartered Certified Accountants (HK) Scholarship (2008)
- Johnson Stokes & Master Prize in Law of Tort I & II (2007)
- Kowloon Chamber of Commerce Scholarship (2007)
- Sir Man Kam Lo/Jardine Scholarship (2007)
- Rosita King Ho Scholarship (2006)
Various competition law seminars/talks/presentations upon invitation by:
- The Competition Commission
- The International Bar Association’s Law Students’ Committee
- The Chinese Gold & Silver Exchange Society
- The Department of Justice
- The Association of Hong Kong Professionals
- The Construction Industry Council
- The Law Society of Hong Kong
- Thomson Reuters
- The Hong Kong Competition Association
- The Hong Kong Institute of Chartered Secretaries
- Euromoney / International Financial Law Review (IFLR)
- LexisNexis
- law firms
Publications on competition law (some available here):
- Television Broadcasts Ltd v Communications Authority: Implications for the New Competition Ordinance, Hong Kong Lawyer, April 2016 issue
- The New Hong Kong Competition Law: Anomalies and Challenges, 37 World Competition 541 (2014) (awarded the 2014-15 Research Output Prize of the Faculty of Law)
- A Rule of Reason Approach to the Antitrust Issues of the Google Book Search Settlement, 10 DePaul Business & Commercial Law Journal 1 (2011) (nominated for the Concurrences Antitrust Writing Awards 2012)
- A New Approach to Resolving Refusal to License Intellectual Property Rights Disputes, 34 World Competition 261 (2011) (nominated for the journal’s Young Writers’ Award)