Sean Bierman

Assistant Manager Financial Services Technology

BDO Johannesburg

+27 79 934 7028




Sean is an Assistant Manager within the Technology Advisory division, specialising in the Financial Services sector.

Sean started his career at a Big 4 audit firm in South Africa, and his core experience lies in providing IT audit assurance and advisory services to a range of clients within the Financial Services sector. He has four years of experience within this sector, during which he has obtained both COBIT 5 and CISA certifications. Sean’s experience involved using technology to solve problems within the financial services industry and delivering and managing audits as an IT specialist within the external audit environment. Sean has also gained experience in compliance with IFRS and corporate governance principles and has been involved in IT risk management.

Some of Sean’s technical skills include General IT Control reviews, application control reviews, robotics process automation, process and control design reviews as well as data migrations. Sean has provided audit assurance and advisory services to several clients, including Investec Bank Limited, Barclays Africa Group Limited, Nedbank Limited and BMW Financial Services. His client portfolio included:


  • Nedbank CIB
  • Nedbank Corporate&Business Banking
  • Investec Credit
  • Investec CIB
  • Investec Group
  • Wealthport Investments
  • Cell C
  • Dimension Data
  • AngloGold Ashanti
  • Queenspark (Rex Trueform)
  • BMW Financial Services


  • BEcon Majoring in Information System and Economics
  • BEcon Economics and Information System Joint Honours
  • COBiT 5 Foundation certification | APMG
  • CISA Certified


Sean is a member of ISACA