Mach is an associate at Addario Law Group LLP. His practice includes criminal, regulatory, constitutional and civil litigation.

Before joining Addario Law Group, Mach was a judicial clerk at the Ontario Court of Appeal.

Mach obtained his law degree from the Schulich School of Law at Dalhousie University. He won academic prizes in Criminal, Constitutional and Administrative Law courses. While at law school, Mach worked at the Dalhousie Legal Aid Service, represented fellow students in university disciplinary proceedings through the Dalhousie Student Advocacy Service and volunteered with PATH Legal, a prison law charity. Upon graduation, the faculty of law awarded Mach the G.I. Smith Memorial Award, which is given to the graduating student who shows the most promise of achieving exemplary standards of professional and public service.

Before law school, Mach completed a Bachelor of Social Science in Economics at the University of Ottawa. He graduated from the University of Ottawa as the University Gold Medalist.

Mach was called to the Bar in 2026.

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