A leading global financial institution is seeking an experienced Surveillance Calibration specialist to join its established surveillance function on a 6-month contract basis. This is a hybrid role (4 days in) looking to pay up to £430 a day umbrellaThis is a highly analytical and hands-on role focused on the calibration, validation, and optimisation of trade surveillance scenarios across global capital markets businesses. Working closely with surveillance, compliance, and risk stakeholders, you will play a key role in enhancing alert effectiveness, reducing false positives, strengthening regulatory coverage, and improving surveillance outcomes.The successful candidate will bring experience within a financial services environment, alongside strong expertise in surveillance systems, scenario tuning, quantitative analysis, and market abuse risk management.Key ResponsibilitiesExecute surveillance scenario calibration and re-calibration activities using quantitative and statistical techniques.Optimise surveillance thresholds and parameters to improve alert quality, effectiveness, and productivity.Conduct validation and effectiveness reviews of surveillance scenarios, assessing regulatory coverage, product scope, and design integrity.Analyse alert performance, identify trends, and recommend enhancements to surveillance controls and methodologies.Partner with surveillance and business stakeholders to apply qualitative judgement alongside quantitative outputs.Develop and maintain su