Data Scientist & Data Analyst with 3-year experience looking for FT Data roles.1) Programming: Python (Scikit-Learn, pandas, numpy, nltk), R, SQL (MySQL), Tableau, PySpark, AWS, MongoDB, Elasticsearch, Google Analytics, Advanced Excel (Pivot Table, VBA)2) Methodologies: Decision Tree (Random Forest, XGBoost), NLP (LDA), Time Series, Neural Network, Regularization, PCA, SVM, Logistic Regression; A/B Testing, Causal Inference, Exploratory Data Analysis, Sentiment Analysis, Simulations3) Credentials: CFA Level II Candidate, 2nd Place 2021 Smart C-Terminal Science and Technology Competition ($80,000 initial investment), 4th Place 2020 Roland Berger Talents Competition, Excellence Award 2022 Bain Cup Case CompetitionFor more information, please contact Jiayi Wang(Skylar) at w.jiayi@columbia.edu
Stealth Ai Startup
View- Website:
- morganstanley.com
- Employees:
- 4857
- Company phone:
- (212)761-4000
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FounderStealth Ai StartupNew York, Ny, Us
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Assistant Vice PresidentMorgan Stanley Oct 2024 - PresentNew York, Ny, UsWealth Management AI Machine Learning and Workplace Solution Team -
Model/Anlys/Valid Sr Analyst - AvpCiti Jan 2023 - Oct 2024New York, New York, Us● Manage Risk models (CLI, CLD, Authorization) and AI models to inform strategic business decisions [SAS, R]● Construct robust Consumer Analytics model enabling targeted segmentation of high-value consumer segments [Python, ML]● Automate generation of hundreds of Workflow Reports tracking stakeholder progress for timely project delivery [SAS] -
Advertising Product ManagerState Cashmere Jun 2023 - Jan 2024New York, New York, Us -
Business Analytics AdvisorCigna Sep 2022 - Dec 2022Bloomfield, Ct, Us● Manage 20+ Supply Chain databases and initiate automated ETL pipelines by building custom web crawls with data manipulation and updating data to SQL Server databases [Python, Alteryx, SQL]● Create Supplier Default Probability model for implementing innovative risk mitigation strategies [Machine Learning]● Design ROFR Analysis Recommendation Algorithm and generate 200+ Vendor Risk Scorecards Dashboards [Tableau] -
Data Science AnalystBeauer Jan 2021 - Dec 2022● Performed natural language processing on 10,000 consumer reviews to identify market trends and competitive product analysis, developed product optimization strategies [NLP]● Constructed A/B testing experiments to verify the new strategies effectiveness on user preferences, improved product usage rate● Created competitive advantages and presented business dashboard to investors to realize millions of investments
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Data Scientist InternNsi Insurance Group Jun 2022 - Aug 2022Miami Lakes, Florida, Us● Improved query efficiency of databases by 15% via implementing sharding; Designed ETL pipelines for automated database linkage on machine learning models for data wrangling automation [SQL, Hadoop & Spark]● Created machine learning models for the home insurance comparison search engine to predict customer purchasing probability, delivered customer insights to sales department with 8% increase in operational efficiency [Random Forest, XGBoost, H2O]● Applied exploratory data analysis to generate target consumer profiles for developing the customized marketing strategy [EDA] -
Consulting InternPwc Sep 2020 - Dec 2020Gb● Developed the Probability of Default model for investors of a P2P lending company to assess counterparties’ credit rating● Implemented logistic regression to build a Personal Lending model mapping the default probability to an ordinal rating system as a predictor for loan interest rate [Python]● Confirmed model robustness and generalizability through backtesting, benchmarking against alternative models, sensitivity tests, and model assumptions testing [Decision Tree, Random Forest, K-fold Cross-validation]● Presented the PD model with stakeholders across business verticals and obtained approval from Model Governance Board -
Consulting InternRoland Berger Jun 2020 - Sep 2020Munich, Germany, De -
4Th Place 2020 Roland Berger Campus Talents CompetitionRoland Berger Jun 2020 - Jun 2020Munich, Germany, De
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Institutional Business Department InternCitic Securities Company Limited Jun 2018 - Aug 2018Beijing, Cn
Jiayi Wang Skills
Jiayi Wang Education Details
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Columbia UniversityApplied Analytics -
The University Of Nottingham Ningbo ChinaInternational Business Economics
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The London School Of Economics And Political Science (Lse)Advanced Corporate Finanace
Frequently Asked Questions about Jiayi Wang
What company does Jiayi Wang work for?
Jiayi Wang works for Stealth Ai Startup
What is Jiayi Wang's role at the current company?
Jiayi Wang's current role is Founder.
What schools did Jiayi Wang attend?
Jiayi Wang attended Columbia University, The University Of Nottingham Ningbo China, The London School Of Economics And Political Science (Lse).
What skills is Jiayi Wang known for?
Jiayi Wang has skills like Leadership, Ppt, Economic Data Analysis, Economics, Deal Sourcing, R (Programming Language, Data Analysis, Microsoft Sql Server, Exploratory Data Analysis, Market Research, Communication, Finance.
Who are Jiayi Wang's colleagues?
Jiayi Wang's colleagues are Joy Conetta, Rajat Sharma, Aruna Bindra, Juan D. Jaramillo, Winnie Mathonsi, Alexandre Zimmermann, Robert Gilraine.
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