William McMahon

Diploma, Six Sigma Master Black Belt

• at Six Sigma International Institute
• February 2016

Diploma, OHSAS 18001

• at Institute of Occupational Health and Safety
• May 2015

Higher diploma, Senior Incident Investigator

• at KELVIN TOP SET
• May 2015

Higher diploma, Business Management

• at Business Management
• January 2015

Diploma, Project Management

• at PMP
• January 2014

Diploma, HACCP Level 4 Advanced

• at Institute of Food safety
• January 2010

Diploma, Catering and Hospitality Industry Level 706/1

• at City and Guilds
• January 1998