McGregor Boyall is a recruitment service. Most vacancies are published on behalf of client companies.
Currently, what the company is primarily hunting for is Frontend Development, Scientific Method, and Software Engineering professionals. They recruit for offices in London, Central London, South London and 19 other locations within United Kingdom. See below for a list of 117 vacancies at McGregor Boyall, for instance "Java/Scala/Kotlin Software Developer - Equity Swaps- Greenfield" and "Application Security Engineer".