Summary
Rachel Elsey is a Senior Control Engineer with over 30 years' experience designing, implementing and commissioning advanced process control across petrochemical, refining and specialty plants. At SABIC she leads cross-plant projects that improve product quality, throughput and energy efficiency using model-based predictive control (DMC+, Connoisseur, HEICON, DeltaV Predict) and advanced DCS strategies (DeltaV, ABB MOD300, Honeywell Experion/TDC3000). Her career spans hands-on DCS migrations, dynamic steam system simulation and operator training simulator development, giving her deep practical insight into both control theory and on-site operability. She combines legacy system expertise with modern model predictive approaches and has repeatedly translated simulator studies into measurable plant performance gains. Notably, she pairs control engineering depth with a pragmatic “fake programmer” sense of humour, reflecting long experience turning complex process models into robust, operational systems.
9 years of coding experience
25 years of employment as a software developer
Emerson Process Management
Adersa
AspenTech
The Paston School
Siemens
Predictive Control Limited
BEng(Hons.), Chemical Engineering, BEng(Hons.), Chemical Engineering at Polytechnic of Wales
Honeywell