What is Scrum Master? — UK Software Development Guide

In the UK software development market, the Scrum Master role is often combined with other responsibilities in smaller teams — sometimes called a "Scrum Master / Delivery Lead" or similar hybrid. In government digital services (GDS), the Scrum Master is a standard role in the recommended team structure. UK IR35 considerations: a Scrum Master who is embedded in a client team, using client processes and tools, and providing ongoing services may be inside IR35 — the substitution test (can someone else do the role?) and control test apply.