Full-stack Data Scientist

Senior Data Scientist at Fintech Startup
Jul 2019 - Present (4 yr 8 mos)

• Collaborated with cross-functional teams to define and prioritize business problems, translating them into machine learning problems and data-driven research questions.
• Accessed data from diverse sources using SQL/Python/API, implementing data wrangling techniques for data integrity.
• Designed and executed experiments, ensuring accuracy and effectiveness of machine learning models and related business strategies.
• Led end-to-end execution of data science projects, including scoping, building, testing, implementation, maintenance, monitoring, and optimization.
• Coached and mentored teammates and colleagues in advanced analytics topics.
• Applied advanced data analysis and modeling using machine learning and deep learning techniques.
• Developed customer segmentation and conversion propensity models.
• Contributed to loan lifetime modeling, customer attrition modeling, and document classification projects.

Data Analyst at Fintech Startup (same company as above)
May 2018 - Jun 2019 (1 yr 2 mos)

• Accessed and sourced data from various systems using SQL/Python/API, automating data wrangling and reconciliation.
• Conducted data exploration, wrangling, and analysis for trend discovery and improvement opportunities.
• Created dashboards and reports using Tableau, Python, and R for various business units.
• Provided analysis and advice on events tracking, online experiments (including A/B tests), and funnel/product efficiency.

IT Audit Manager at Leading Insurance Company
Dec 2017 - May 2018 (6 mos)
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Senior IT Auditor (Analyst) at Leading Insurance Company
Nov 2016 - Dec 2017 (1 yr 2 mos)

• Performed exploration, wrangling, and analysis of structured and unstructured data for audits and risk assessments.
• Automated data collection and processing from disparate sources, engaging with business and IT.
• Conducted reviews of data governance, management, security, and architecture.
• Led end-to-end business and IT reviews, designing audit programs and managing stakeholders.

Global IT Audit Senior Manager at Telecommunications Company
Jul 2014 - Sep 2016 (2 yrs 3 mos)

• Performed risk assessment and planned/on-demand engagements worldwide, focusing on data analysis.
• Conducted audits and consulting on Big Data and Machine Learning projects in Italy and Russia.
• Issued audit reports, presentations, and visualizations to local and group management.

Senior IT Audit Analyst at Multinational Banking and Financial Services Company
Nov 2011 - Jul 2014 (2 yrs 9 mos)
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IT Audit Analyst at Russia's Largest Retailer
Dec 2009 - Nov 2011 (2 yrs)

• Designed Tech and Data audit programs, executed audit missions, and performed data analysis in IT and operational audits.

Consultant (Development and Analytics) at Leading IT Consulting Company
Aug 2009 - Dec 2009 (5 mos)

• Collected requirements, performed development and testing in solutions based on Microsoft Navision.

Business Analyst at Leading Insurance Company
Nov 2008 - Aug 2009 (10 mos)

• Analyzed core business processes, composed technical specifications for SAP system customization, trained and supported business users.

Support Engineer at Global Provider of Data Protection Solutions
Oct 2007 - Nov 2008 (1 yr 2 mos)

• Provided first and second line support to international corporate customers, developed scripts for OEM solutions.