modeller

mod|el|ler /m'ɒdələr/ (modellers)
in AM, use modeler
1 [N-COUNT]
A modeller is someone who makes shapes or figures out of substances such as wood or clay.
2 [N-COUNT] usu supp N
A modeller is someone who makes theoretical descriptions of systems or processes in order to understand them and be able to predict how they will develop.
...climate modellers.