Versatile back Tromans is capable in both the centres and at fullback, having honed her skills at Newcastle Emlyn RFC, Wiberod RFC, Carmarthen Quins, Scarlets and Cardiff University – as well as Wales Under-20s on the international stage. 

Ellie’s Lightning debut came in October 2024 in the Premiership Women’s Rugby loss to Trailfinders Women, and she would add a second appearance as a replacement against Sale Sharks a week later. She broke away from Lightning to perform for Brython Thunder in the Celtic Challenge, before returning to Loughborough in the summer of 2025 and started all four PWR: The Cup 2025/26 games before going on to join a group of ten senior players who extended their contracts with the club in July 2026.