Model Validator V

Please note!
Independent Contractors (ZZP) are welcome.
Assignment Description
We are looking for an experienced Model Validator to join a specialised Model Risk Management team responsible for validating Trading Book financial risk models. This assignment focuses on XVA models, financial derivatives valuation, prudent and fair valuation methodologies, and complex valuation adjustments. You will act as Lead/Senior Validator, taking ownership of end-to-end model validations from planning through completion while challenging model developers and model owners on key risk topics. You will prepare high-quality validation reports for senior stakeholders and regulatory standards, advise on model risk materiality and remediation strategies, and contribute to the continuous development of the Model Validation function. The role also offers the opportunity to drive innovation through automation and AI-enabled validation techniques within an international and highly collaborative environment.
What will you be doing?
* Perform end-to-end validation of Trading Book financial risk models with a strong focus on XVA.
* Act as Lead/Senior Validator throughout the entire validation lifecycle.
* Execute risk-based model validations in line with the Model Risk Management Framework.
* Prepare and defend validation reports for model approval committees and senior stakeholders.
* Advise on model risk materiality, prioritisation and remediation strategies.
* Contribute to innovation within Model Validation, including automation and AI-enabled validation techniques.
* Coach junior validators and provide guidance on ways of working.
* Build strong relationships with model developers, risk managers and other stakeholders across Trading Book and Model Risk Management.
# Hard requirements (only apply if you meet all of the following)
* Demonstrable expertise in **XVA** and the **valuation of financial derivatives**.
* Proven experience with Trading Book financial risk models.
* Strong quantitative background (Financial Mathematics, Stochastic Calculus, Statistics, Econometrics or a related discipline).
* Experience working in a highly regulated environment with strict governance and documentation standards.
* Knowledge of the regulatory framework surrounding **Valuation Adjustments**, including **Additional Valuation Adjustments (AVA)**.
* Experience challenging first line of defence decisions.
* Hands-on experience with quantitative modelling in **Python**, including **pandas/polars, NumPy, QuantLib and ORE**.
* Knowledge of AI applications, including prompting, agentic workflows and managing AI-related risks.
Assignment Details
Start: 3 August 2026
Duration: Until 31 December 2026 (possible extension)
Hours: 36 hours per week
Location: Amsterdam (hybrid)
Rate: Target rate €100 - €120 per hour

Engagement: Independent Contractor (ZZP)
Projects
You will be involved in the validation of, among others:
* XVA Out-of-Scope Methodologies, including Prudent Valuation and Valuation Adjustments.
* Commodity XVA models, including the Gibson-Schwartz model and commodity product pricing.
* Fair and Prudent Valuation methodologies for IR and FX Skew models within XVA.
* Collateral Valuation Adjustment (ColVA) models.
In addition, you will advise on broader XVA topics, including the relationship between Accounting CVA and FRTB CVA, identification of modelling gaps, and assessment of model risk implications.