Thomas, 38, has been appointed regional coordinator of Blues’ Academy in London – a new role that came last year as part of a screening restructuring.
The post was initially held by Chris Scudder, but he has since accepted a position at West Ham United as an emerging talent manager and left earlier this year.
Thomas came to Goodison in January after serving as a part-time scout at Chelsea and will be Everton’s eyes and ears in the capital for talent aged under 13 to 18.
Former West Bromwich Albion and Charlton Athletic forward will report directly to Everton Academy recruiting manager Chris Perkins.
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Thomas has played 155 times in the Premier League, scoring 11 times and providing 12 assists.
A product of Arsenal’s youth setup, Thomas has won two FA Youth Cups with the Gunners, but has not been able to break into Arsene Wenger’s first team beyond three appearances. in the Coupe de la Ligue.
Born in London, Thomas, a former England youth international, has also played for Portsmouth, Leeds, Crystal Palace, Rotherham and Port Vale during a 16-year professional career.