Atilla

Self-employed

Entrepreneur • Indépendant

Dec 2013 - Mar 2025 • 11 yrs 3 mos

Core Activities: Strategic consultancy, technical realization of quantitative models, data infrastructures, and data analysis for a diverse range of clients. Model Development: Design and implementation of statistical models (including time-series analysis, ARCH/GARCH) utilizing Stata, SPSS, Excel (Power User), and RStudio. Data Architecture: Development of robust database environments and complex query structures using SQL. Full-Stack Solutions: Development of applications and interfaces (PHP, JavaScript/jQuery) to make analytical results accessible and actionable for stakeholders. Independent Project Management: Full accountability for the entire project lifecycle: from needs analysis and primary research to technical delivery and documentation. Domain Adaptation: Proven ability to rapidly comprehend and apply new technical and complex subject matter.

Risk Officer

Alphabet • Temps plein

Feb 2019 - Feb 2020 • 1 yr

Project Owner (Risk Department): Led the transition to data-driven risk management by implementing a new HQ-designed, European Harmonized Residual Value model. Utilized Bayesian techniques in SAS to critically test, challenge, analyze, and optimize the model. Successfully demonstrated the model's superiority over conservative alternatives to meet critical HQ deadlines, despite internal resistance regarding provision levels. Successfully persuaded critics and built broad support across teams, board members, and stakeholders. Residual Value Forecasting: Responsible for forecasting the residual value of the lease vehicle fleet to determine financial provisions. Conducted (re)calculations of Contract Residual Value (CRV), Base Residual Value (BRV), and Market Residual Value (MRV), with direct impact on bottom-line results and monthly/annual recalibrations. Board Reporting & Documentation: Drafted board agendas, attended executive meetings, and presented model performance. Responsible for comprehensive documentation, including operational manuals and data definitions. Team Mentorship & Advisory: Guided the team in applied statistics and software applications. Advised the board and resolved complex technical queries to improve workflow efficiency and team proficiency. Cross-functional Collaboration: Partnered with Finance, (Re)Marketing, Accounting, Compliance, Business Intelligence, and IT. Managed daily correspondence regarding model performance and conducted international visits to Global HQ.