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
- StrategyExpertNew
Fintech Partnership Risk Assessment for a Traditional Bank
Your task is to conduct a risk assessment for WellsTrade's potential partnership with PayFlow. Review PayFlow's business model, cybersecurity posture, regulatory compliance (e.g…
- Operational Risk
- Vendor Risk
- Cybersecurity
Banking and Financial Institutions - ResearchExpertNew
Experimental Design for a Fintech App's Savings Nudge
You are a behavioral data scientist at SaveSmart. Design a randomized controlled trial (RCT) to test the effect of a 'future self' nudge on savings behavior. Define treatment an…
- Experimental Design
- Statistical Analysis
- Nudge Theory
Behavioral Economics - CodeExpertNew
Real-Time Sentiment Analysis for a Sustainable Fashion Brand
You are to develop a real-time sentiment analysis system for EcoWear. Ingest data from Twitter API (hashtag #EcoWear) and a mock review API, process using Spark Streaming with M…
- Spark Streaming
- Mapreduce
- Nosql
Big Data and Cloud Technologies - ResearchExpertNew
Neuromarketing Audit for a Sustainable Fashion Retailer
Your team will design and simulate a neuromarketing experiment. First, propose two alternative store layouts (e.g., circular vs. grid) and two website homepage designs (e.g., he…
- Neuromarketing
- Experimental Design
- Eye Tracking Analysis
Consumer Behavior Practice your coursework on real scenarios.
Every challenge is shaped from real industry context — not generic exercises. The work mirrors what your degree prepares you for.
Why Ewance
- AnalysisExpertNew
M&A Strategy for a Mid-Market Manufacturing Firm
You have access to financial statements for both companies and industry data. Your task is to value MicroGears using DCF and comparable transactions, estimate potential synergie…
- Mergers And Acquisitions
- Dcf Valuation
- Synergy Estimation
Corporate Finance (Graduate) - DesignExpertNew
Designing a Data Warehouse for a Renewable Energy Firm
You are given sample data from three sources: energy production logs, weather data, and equipment maintenance records. Your task is to: (1) design a star schema with fact and di…
- Data Warehousing
- Star Schema
- Etl
Database Systems - DesignExpertNew
Dynamic Pricing Optimization for a Ride-Hailing Platform
You are a data scientist at CityRide. Using 6 months of historical trip data (pickup/dropoff, time, fare, surge multiplier), weather data, and local events calendar, you must bu…
- Reinforcement Learning
- Optimization
- Simulation
Data Science for Business - AnalysisExpertNew
Financial Statement Analysis for a Renewable Energy Firm
Your team must analyze SunPower's last three years of financial statements (income statement, balance sheet, cash flow statement) and ESG reports. Calculate key ratios (liquidit…
- Financial Statement Analysis
- Ratio Analysis
- Dupont Analysis
Financial Accounting (Graduate) - Browse challenges
Explore role
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.
- DesignExpertNew
Designing a Market-Making Strategy for a New ETF
You are a quantitative analyst at Nova Capital. The new ETF (ticker: AIRO) will track 30 AI and robotics stocks with daily rebalancing. The initial AUM is $200 million. Your tas…
- Market Microstructure
- Etf Arbitrage
- Risk Management
Financial Markets and Institutions - StrategyExpertNew
Blockchain-Based Supply Chain Traceability Strategy
You are hired by the manufacturer's innovation team. Research existing blockchain traceability solutions in luxury goods (e.g., LVMH's AURA, Breitling's use of blockchain), asse…
- Blockchain Strategy
- Supply Chain Analysis
- Cost Benefit Analysis
Fintech and Digital Finance - CodeExpertNew
Designing a Bond Trading Strategy for a Hedge Fund
Your task is to design a long-short strategy: long corporate bonds and short gilts (or vice versa) based on spread analysis. Use historical data (provided) to backtest the strat…
- Fixed Income Arbitrage
- Yield Spread Analysis
- Backtesting
Fixed Income and Bond Markets - ResearchExpertNew
Blockchain Pilot for Coffee Supply Chain Traceability
Your task is to propose a blockchain pilot project for one coffee origin (choose Colombia). Define the data to be captured at each supply chain node (farm, mill, exporter, roast…
- Blockchain In Supply Chain
- Traceability
- Roi Analysis
Global Supply Chain Management 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
- ResearchExpertNew
Business Cycle Positioning for a Renewable Energy Firm
You are an economic analyst at SunVista. The CFO needs a report on the current and expected Eurozone business cycle to guide the timing of a €500M investment in new solar capaci…
- Business Cycle Analysis
- Macroeconomic Forecasting
- Investment Timing
Global Economy and Macroeconomics for Managers - AnalysisExpertNew
Commodity Index Rebalancing for a Multi-Asset Fund
Your task is to conduct a quantitative analysis of commodity index rebalancing methodologies and recommend a new approach for the fund. Compare at least three different commodit…
- Commodity Indices
- Index Rebalancing
- Portfolio Optimization
Hedge Funds and Alternative Investments - DesignExpertNew
Auction Design for Renewable Energy Subsidies
Your team must design an auction mechanism for allocating subsidies to offshore wind projects. You have historical bid data from past auctions, cost estimates for different tech…
- Auction Theory
- Mechanism Design
- Game Theory
Industrial Economics and Game Theory - StrategyExpertNew
International Expansion Strategy for a Fintech Startup
You are a strategy team of 3. Analyze three target markets (Indonesia, Vietnam, Philippines) using macroeconomic data, regulatory barriers, and competitive landscape. Recommend …
- Market Entry Strategy
- Macroeconomic Analysis
- Regulatory Analysis
International Economics - CodeExpertNew
Forecasting Exchange Rates for a 40-Person SaaS Scale-Up
Your task is to collect monthly data for the past 5 years for GBP/USD and EUR/USD, along with relevant predictors (interest rate differentials, inflation, GDP growth, trade bala…
- Time Series Forecasting
- Econometric Modeling
- Python
International Finance - AnalysisExpertNew
Data Protection Impact Assessment for a Fintech App
You are the data protection officer (DPO) for the fintech. Perform a DPIA for the new AI-driven loan feature, following ICO guidelines. Identify at least 5 key risks, rate them …
- Gdpr Compliance
- Data Protection Impact Assessment
- Risk Management
IT Governance and Security - AnalysisExpertNew
Data Protection Impact Assessment for a Smart City IoT Project
Your task is to produce a full DPIA report for the smart parking pilot. You must describe the processing, assess necessity and proportionality, identify risks to data subjects, …
- Dpia
- Gdpr
- Risk Assessment
IT Law and Data Protection - AnalysisExpertNew
Gender Pay Gap Audit at a Hamburg Tech Scale-up
Your task is to analyze the provided anonymized employee dataset (including salary, job level, tenure, performance rating, and gender) to determine if a gender pay gap exists af…
- Pay Gap Analysis
- Regression Analysis
- Blinder Oaxaca Decomposition
Labor Economics - DesignExpertNew
Social Security Compliance for a Remote-First Tech Company
As a compliance analyst, you must audit GlobalDev's current practices and propose a system for social security registration and contribution tracking across multiple EU jurisdic…
- Social Security Law
- Eu Regulation
- Cross Border Compliance
Labor and Employment Law - CodeExpertNew
Deep Learning for Sustainable Fashion Visual Search
You are given a dataset of 10k product images (from a subset of the catalog) with metadata (category, price, material). Build a visual search pipeline: extract embeddings using …
- Deep Learning
- Computer Vision
- Cnn
Machine Learning and AI for Business - CodeExpertNew
Dynamic Pricing for a Renewable Energy Aggregator
Your task is to develop a dynamic pricing model for GreenGrid's electricity sales. Constraints: must account for weather-dependent generation, market price volatility, and regul…
- Dynamic Pricing
- Optimization
- Risk Management
Managerial Economics - AnalysisExpertNew
Stochastic Inventory Policy for a Sustainable Fashion Brand
Using historical demand data (provided), fit a demand distribution and determine optimal (s, S) or (R, Q) policy parameters. Consider perishability (seasonal collections) and a …
- Inventory Optimization
- Stochastic Modeling
- Simulation
Operations Analytics and Optimization
How it works
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.
Industry teams behind a decade of practitioner briefs
Hiring from this pool?
Sponsor a challenge and meet candidates through actual work.
Industry teams can shape briefs around the skills they hire for, then evaluate students on rubric-scored deliverables — not resumes.