Summary
Overview
Work History
Education
Skills
Accomplishments
Software
Timeline
Languages
Hi, I’m

KYRIAKOS MAVRIDIS

Data Scientist | Business Strategist & ML Expert | Pricing Modeler
Greece
KYRIAKOS MAVRIDIS

Summary

Results-driven Data Scientist with a strong business and strategy background. Adept at aligning data-driven initiatives with organizational goals. Skilled in developing minimum viable products (MVPs), optimizing infrastructure-constrained code, and applying statistical experimentation for decision-making. Extensive experience in managing cross-functional teams for machine learning prototyping and product development in software-as-a-service (SaaS) environments. Drives scalable solutions from concept to production. Deep expertise in quantitative finance, treasury operations, hedge fund strategies, and risk management . Proficient in pricing algorithms , including NYOP models and risk-based pricing for insurance products. Possesses a strong command of Value at Risk (VaR) calculations, risk frameworks, and comprehensive risk reporting methodologies.

Overview

24
years of professional experience
2
Languages

Work History

OptforAl

Co-Founder - Lead
09.2021 - Current

Job overview

  • Strategic Leadership & Consultation : Drive end-to-end data science projects, providing expert consultation on AI/ML implementation, predictive analytics, and business intelligence to optimize decision-making
  • Machine Learning & SaaS Solutions : Design and deploy ML models in SaaS environments, ensuring scalable, production-ready solutions which align with business objectives
  • MVP Development & Rapid Prototyping : Development of Minimum Viable Products (MVPs), iterating quickly to validate concepts and optimize performance
  • Automation & Workflow Optimization : Manage automation projects to enhance productivity, streamline operations, and improve cross-functional coordination
  • Online Experimentation & A/B Testing : Build experimentation framework and utilise statistical modeling to assess initiatives to maximise ROI
  • Cross-Functional Team Leadership : Collaborate with engineers, analysts, and executives to bridge technical solutions with business needs, ensuring measurable impact
  • Risk Modeling & Financial Analytics : Implement risk assessment frameworks, pricing strategies, and financial modeling for industries including fintech and ecommerce

TaxiBeat

Principal Data Scientist
10.2021 - 11.2022

Job overview

  • Developed and scaled dynamic pricing models : Optimise profit while balancing customer experience and long-term profitability. Applied inventory-based pricing for fleet-owned taxis, ensuring demand fulfillment, while leveraging dynamic marketplace pricing for hail-and-ride services, where supply constraints impact match probability.
  • Developed Real-Time Price Elasticity Models: Integrated price sensitivity analysis into dynamic pricing frameworks, adjusting rates based on real-time customer response and competitor benchmarking.
  • Implemented Personalized & Segmented Pricing: Built dynamic pricing algorithms leveraging customer segmentation, behavioral modeling, and real-time demand fluctuations to maximize revenue across diverse user cohorts.
  • Automated Fare & Surge Pricing Adjustments: Deployed reinforcement learning models and multi-arm bandits to optimize real-time price adjustments while maintaining market competitiveness and customer retention.
  • Designed cross-functional A/B testing framework: Integrate statistical modeling to evaluate pricing experiments and assess causality effect on marketing and operations via incrementality measurement.
  • Collaboration with stakeholders: Translate data insights into actionable pricing strategies, aligning department-specific objectives with company-wide revenue and operational goals.

Etraveli Group

Senior Data Scientist
06.2019 - 09.2021

Job overview

  • Development of advanced pricing models and customer segmentation algorithms: Align sales, commercials, operations and finance, to a long-term profitability without sacrificing business share and visibility through meta channels.
  • Design of automated pricing strategies for ancillary flight products: Pricing add-ons (“Cancel Anytime,” “Support Packages”, etc), leveraging ML to optimize dynamic pricing based on demand, risk, and conversion patterns.
  • Participation in fraud detection initiatives: Machine Learning model to mitigate the risk of acquiring fraudulent transactions in a fraud-vulnerable business as the OTA.
  • Exploration of multi-arm bandit modeling: balance real-time testing with predictive analytics to evaluate broad organizational impact on various objective functions.

Etraveli Group

Treasury & Online Payments Director
11.2015 - 05.2019

Job overview

  • Cash flow and working capital management with strategic oversight: I ntegration of risk mitigation across treasury, finance, and operations for optimal liquidity.
  • Financial engineering solutions and natural hedges: Address FX risk and ensure financial stability and operational resilience.
  • Payment processing architecture : Establish business and technical specifications with vendors focusing on transaction acceptance while maintaining low fraud rates (3D secure channeling or whitelist).
  • Optimisation of payment processing routing: Exploit multiple cascaded payment processors considering IRF cost schema.
  • Data-driven initiatives during acquisition and private equity audit: Ensure compliance, financial due diligence, and strategic valuation.

Golden Water Capital Ltd Hedge Fund

Co Founder & Investment Manager
06.2009 - 05.2015

Job overview

  • Development of algorithmic trading strategies for alpha generation: Leverage machine learning for signal generation (entry-exit points) and systematic execution across multiple asset classes.
  • Design and development of execution algorithms: Ensure efficient trade execution with minimal slippage, leveraging market microstructure insights and order book dynamics.
  • Implementation of risk management frameworks: Dynamic exposure adjustment based on quantitatively determined market regimes, volatility models, and drawdown controls.
  • Compliance and regulatory adherence: Manage AIMA-based governance for FCA compliance, ensuring operational transparency and investor confidence.
  • Investor relations and fundraising: Engage with LPs, effectively communicating fund strategy, performance metrics, and risk-adjusted returns to build trust and transparency while managing capital allocation decisions

Freelancer Consultant
01.2006 - 01.2008

Egnatia Bank

Research & Market Analyst
01.2001 - 01.2004

Education

Group ESCEM

MBA from Finance

University of Athens

BSc from Mathematics

University of Washington

Certificate from Machine Learning Foundations: Case Study Approach

Simplilearn

Certificate - Data Scientist Masters Program

Athens Derivatives Exchange

Certified Market Maker & Derivatives Trader

Skills

Accomplishments

Optimized Data Processing for ML Training: Developed a high-efficiency data filtering function, reducing billions of records while maintaining representativeness, significantly accelerating ML pricing model training. This innovation streamlined data processing, reducing computational overhead and enabling faster model deployment in production.


Constraint-Optimized Pricing Model: Designed a mathematically optimized pricing framework using Lagrange multipliers, ensuring all business constraints (e.g., demand elasticity, supply availability, and revenue targets) were systematically incorporated. This approach provided a closed-form solution, enhancing model interpretability and improving pricing precision under real-world constraints.


Profit Growth Boost

Increased company revenue by 20% by developing strategic pricing models leveraging ML-driven almost real-time market adjustments


Experimentation Framework Leadership

Successful testing frameworks A/B and Multi Arm with focus on pricing.


Risk Management Mitigation: FX Hedging

Managed FX risk exposure across 35 currencies, implementing a hybrid hedging strategy that combined natural operational hedges with financial derivatives, reducing currency volatility impact on profitability.


Operational Risk: Fraud

Reduced fraudulent transactions by more than 20% via fraud prevention machine learning algorithms, incorporating real-time anomaly detection and risk-scoring mechanisms to safeguard transactions in a high-risk OTA environment.



Software

Python

R

SQL

PySpark

Neural Networks

Machine Learning and AI

Jira

Tableau

Plotly

Dash

Git

Timeline

Principal Data Scientist

TaxiBeat
10.2021 - 11.2022

Co-Founder - Lead

OptforAl
09.2021 - Current

Senior Data Scientist

Etraveli Group
06.2019 - 09.2021

Treasury & Online Payments Director

Etraveli Group
11.2015 - 05.2019

Co Founder & Investment Manager

Golden Water Capital Ltd Hedge Fund
06.2009 - 05.2015

Freelancer Consultant

01.2006 - 01.2008

Research & Market Analyst

Egnatia Bank
01.2001 - 01.2004

University of Athens

BSc from Mathematics

Group ESCEM

MBA from Finance

University of Washington

Certificate from Machine Learning Foundations: Case Study Approach

Simplilearn

Certificate - Data Scientist Masters Program

Athens Derivatives Exchange

Certified Market Maker & Derivatives Trader

Languages

Greek
Native language
English
Proficient
C2
KYRIAKOS MAVRIDISData Scientist | Business Strategist & ML Expert | Pricing Modeler