Data Sciences Challenges
Explore data science challenges on Ewance to build skills employers expect from analysts and ML engineers. Work through challenges on data cleaning, exploratory analysis, modeling, and storytelling with data.
Most Popular
- AnalysisBeginnerNew
Recommend a Payout Policy for a Mature Data Analytics Firm
Work only from the two items in the provided materials: the DataStream Inc. financial case file and the peer payout dataset. Using the case file, calculate the effect of each op…
- Dividend Policy
- Share Buyback Analysis
- Capital Structure
Open coursework - StrategyBeginnerNew
Plot a Diversification Path for a Nairobi Skincare Brand
Using the founder's company case file, the product portfolio sales dataset, and the category attractiveness readout provided to you, run a portfolio analysis (the BCG growth-sha…
- Portfolio Analysis
- Market Research
- Strategic Thinking
Open coursework - AnalysisBeginnerNew
Optimizing Ad Spend for a D2C Cosmetics Brand
You are a data analyst at Glow & Grow. Using the provided dataset (simulated), perform an exploratory data analysis to understand trends in ad performance. Build a regression mo…
- Data Analysis
- Regression
- Data Visualization
Data Analytics for Business - AnalysisBeginnerNew
AI-Powered Customer Sentiment Analysis for a Fintech App
You will receive a dataset of 500+ anonymized app reviews and tweets. Using AI tools like ChatGPT or Claude, you must craft prompts to classify sentiment (positive, negative, ne…
- Prompt Engineering
- Sentiment Analysis
- Data Visualization
Data-Driven Prototyping with AI Practice your coursework on real scenarios.
Every challenge is shaped from real-world context — not generic exercises. The work mirrors what your degree prepares you for.
Why Ewance
- DesignBeginnerNew
Optimizing Inventory for a São Paulo D2C Cosmetics Brand
You are given a CSV file with raw sales, inventory, and supplier data. Your task is to design an E/R diagram, create the normalized relational schema in 3NF, populate it with sa…
- SQL
- Database Design
- Normalization
Database Systems - AnalysisBeginnerNew
Investigate Churn Drivers for NordicGlow Cosmetics Customers
Work only from the two materials NordicGlow has handed you: the customer behaviour dataset (ds-nordicglow-customers) and the founder's retention brief (brief-nordicglow-ceo). Be…
- Data Preprocessing
- Feature Engineering
- Classification
Open coursework - AnalysisBeginnerNew
Hedging FX Risk for a Sydney D2C Cosmetics Brand
You are a risk management consultant hired by GlowSydney. Analyze the company's FX exposure using provided data on forecasted USD payables and AUD receivables. Recommend a hedgi…
- Fx Hedging
- Derivatives Pricing
- Financial Modeling
Derivatives and Risk Management - StrategyBeginnerNew
SEO Growth Strategy for GlowSeoul Skincare Brand
Using the GlowSeoul brand brief, the baseline web analytics readout, the starter keyword dataset, and the competitor snapshot (all provided), design an SEO strategy that raises …
- SEO
- Keyword Research
- Content Strategy
Open coursework - Browse challenges
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Product Manager
Ship product that solves real user problems. Combine user research, prototyping, and stakeholder alignment to turn ambiguous briefs into measurable wins — the role at the centre of modern software teams.
- StrategyBeginnerNew
Rescue QuickBite's Slipping Users with Mobile Marketing
Your analysis task is to build a mobile marketing retention plan for QuickBite using only the three materials you are given: the case file documenting the company's retention si…
- Mobile Marketing
- User Segmentation
- Push Notifications
Open coursework - StrategyBeginnerNew
Omnichannel Roadmap for a Barcelona Cosmetics Brand
Working only from the materials provided, produce a twelve-month omnichannel transformation roadmap for Glow Barcelona. Read the company dossier (glow-barcelona-dossier) to esta…
- Digital Transformation
- Omnichannel Strategy
- Change Management
Open coursework - AnalysisBeginnerNew
Design a Churn-Prediction and Retention Model for TaskFlow
Using the TaskFlow customer dataset and the VP's framing memo (both provided), design and document a churn-prediction model. Perform exploratory analysis to surface patterns and…
- Logistic Regression
- Classification
- Feature Engineering
Open coursework - StrategyBeginnerNew
Design an Inclusive Engineering Hiring Plan for a Boston SaaS Scale-Up
Using the twelve-month applicant funnel dataset and the current-process case file provided, audit where DataFlow's engineering pipeline loses underrepresented candidates and why…
- Diversity And Inclusion Strategy
- Recruitment Audit
- Bias Mitigation
Open coursework Build a verifiable portfolio.
Submissions become evidence. Reviewers with shipping experience score against a rubric; the result becomes a credential anyone can verify.
Why Ewance
- StrategyBeginnerNew
Migrate Glow Naturals to Dynamics 365 Business Central
Your analysis task is to turn the documented situation in the 'Glow Naturals current-state file' (CASE-001) into a defensible migration blueprint, using the legacy data sample i…
- Microsoft Dynamics 365
- Business Process Mapping
- Data Migration
Open coursework - DesignBeginnerNew
SAP HCM Implementation for a 40-Person SaaS Scale-Up
Your challenge is to configure SAP SuccessFactors Employee Central for Cloudlytics. You will define organizational structure, position management, and employee master data. Then…
- SAP Successfactors
- Hcm
- Business Process Design
ERP Systems (SAP and Microsoft Dynamics) - AnalysisBeginnerNew
ESG Reporting for a Chicago D2C Cosmetics Startup
Your task is to develop a 3-page ESG reporting framework for Glow Naturals, including materiality assessment, KPIs (e.g., carbon footprint, water usage, waste reduction), and a …
- ESG Reporting
- IFRS Standards
- Financial Analysis
Financial Accounting (Graduate) - AnalysisBeginnerNew
Lease Accounting for a Restaurant Chain
Your team's task is to implement ASC 842 for Taco Fresco's 50 leases. You have a spreadsheet with lease data: commencement dates, terms, renewal options, annual rent (including …
- Lease Accounting
- ASC 842
- Present Value
Open coursework - AnalysisBeginnerNew
Valuation of a Vienna D2C Cosmetics Startup
You are a junior financial analyst at a boutique valuation firm. GlowVienna has provided you with historical financial data (revenue, expenses, customer counts) for the past thr…
- DCF Modeling
- Comparable Company Analysis
- Excel Modeling
Financial Modeling - AnalysisBeginnerNew
Digital Banking App Feature Prioritization
You are part of the product team. Analyze the neobank's user transaction data (anonymized CSV provided), conduct a competitive analysis of similar features at eToro, Lemonade, a…
- Product Analysis
- Data Analysis
- Competitive Analysis
Fintech and Digital Finance - AnalysisBeginnerNew
Rate and Structure a Spanish Green Bond Issuance
Using the Aurelia Renovables financial statements dataset, calculate the core credit metrics over the three reported years: interest coverage, net-debt-to-EBITDA leverage, funds…
- Credit Analysis
- Financial Statement Analysis
- Bond Covenants
Open coursework - AnalysisBeginnerNew
Demand Forecasting for a New York D2C Cosmetics Brand
You are a forecasting analyst at Glow NYC. Using provided monthly sales data (units sold) for 10 SKUs, develop a time series forecast for the next 3 months. Compare at least two…
- Time Series Analysis
- Forecasting
- Data Visualization
Forecasting for Decision Making - CodeBeginnerNew
Demand Sensing for a 40-Person SaaS Scale-Up
You are a growth analyst at FlowMetrics. Using weekly data on signups, trial conversions, website traffic, and marketing spend, develop a model to forecast monthly subscription …
- Time Series Forecasting
- Regression Analysis
- Python
Forecasting for Decision Making - AnalysisBeginnerNew
Design a Currency Hedging Policy for GlowAustin's EU and Japan Revenue
You are a junior financial analyst at GlowAustin, and the CFO has asked you to prepare a hedging proposal for the next fiscal year. Working from the provided two-year revenue-an…
- Fx Risk Management
- Financial Analysis
- Derivatives
Open coursework - AnalysisBeginnerNew
Consolidation of a New York D2C Cosmetics Startup with a French Subsidiary
Your task is to produce a full consolidation package for GlowUp Naturals Group. You will receive the trial balances of both entities, details of intercompany transactions (inclu…
- IFRS Consolidation
- Intercompany Elimination
- Non Controlling Interest
Open coursework - StrategyBeginnerNew
Reprice the Hero Serum for a Copenhagen Beauty Startup
Using the competitor price list, the customer purchase history, and the willingness-to-pay survey results provided to you, recommend a single new shelf price for the vitamin C s…
- Game Theory
- Pricing Strategy
- Market Analysis
Open coursework
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From brief to credential, in six steps.
Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
Earn a verified credential.
Step 06
Add it to LinkedIn with one click.
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