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
- CodeIntermediateNew
Prescriptive Route Optimization for a Sustainable Fashion Logistics Firm
Your team must develop a decision-support tool that recommends optimal delivery routes for EcoThreads' fleet. You'll need to model the logistics network, incorporate constraints…
- Optimization
- Simulation
- Route Planning
Business Analytics - StrategyIntermediateNew
Data Privacy Ethics for a 40-Person SaaS Scale-Up
You are the Data Ethics Officer at DataFlow. The enterprise client wants to use anonymized customer interaction data to train their AI models. Your task is to create a data gove…
- Data Privacy
- GDPR Compliance
- Ethical Framework Design
Open coursework - StrategyIntermediateNew
Design a Regulatory Compliance Strategy for PayBridge in India
Working as a pair of regulatory analysts, design a regulatory strategy proposal for PayBridge's leadership. Ground every claim in the provided materials: use the PayBridge compa…
- Regulatory Compliance
- Public Policy
- Stakeholder Engagement
Open coursework - StrategyIntermediateNew
Designing a BI Strategy for a Regional Retail Chain
Your challenge is to design a BI architecture including a data warehouse (conceptual and logical models), an ETL strategy to integrate data from multiple sources (POS, inventory…
- Data Warehousing
- Etl
- Olap
Business Intelligence Develop in-demand professional skills.
Each challenge names the skills it strengthens. Over time, your profile fills with the competences a hiring manager would actually look for.
Why Ewance
- StrategyIntermediateNew
Redesign Glow Naturals as a Beauty Creator Platform
Acting as the strategy consultant on the engagement, examine the three items in your materials: the Glow Naturals Company Dossier, the Customer and Unit-Economics Dataset, and t…
- Business Model Canvas
- Platform Design
- Ecosystem Mapping
Open coursework - StrategyIntermediateNew
Change Management for a 40-Person SaaS Scale-Up Moving to Enterprise
Assess the current organizational culture using a provided survey (simulated data) and identify potential sources of resistance using Kotter's 8-Step Model or ADKAR. Design a 3-…
- Change Management
- Organizational Culture
- Resistance Management
Business and Industrial Psychology - StrategyIntermediateNew
Investigate FlowSync's Path from Self-Serve to Enterprise Sales
Treat this as a field investigation, not a desk opinion. First, study the publicly observable evidence: the live pricing and packaging pages listed in 'provided_materials' show …
- Product Led Growth
- Enterprise Sales
- Pricing Strategy
Open coursework - AnalysisIntermediateNew
Decarbonizing a 40-Person SaaS Scale-Up's Supply Chain
As a carbon management analyst, you must quantify CloudSync's current carbon footprint (Scope 1, 2, 3), identify reduction levers, and propose a roadmap to carbon neutrality. Co…
- Carbon Footprinting
- Scope 3 Emissions
- Renewable Energy
Circular Economy and Sustainable Operations - Browse challenges
Explore role
Pricing Strategist
Set the price that captures value without leaving sales on the table. Demand modelling, willingness-to-pay research, and the disciplined experimentation that turns pricing into a competitive advantage.
- ResearchIntermediateNew
Investigate Fast-Fashion Green Claims to Reposition EcoWear
Work only from the materials provided: the EcoWear company brief, the seed claims dataset you will extend, the two competitor sustainability hubs (H&M Group and Inditex/Zara), a…
- Competitive Intelligence
- Sustainability Analysis
- Strategic Communication
Open coursework - StrategyIntermediateNew
Redesign TaskFlow's Pricing to Win Enterprise Without Losing Small Businesses
Working only from the materials provided to you — the customer accounts and usage dataset (taskflow-accounts-usage), the current pricing and packaging brief (taskflow-pricing-br…
- Pricing Strategy
- Segmentation
- Financial Analysis
Open coursework - AnalysisIntermediateNew
Valuation of a 40-Person SaaS Scale-Up for Series A
Your team will act as a boutique valuation advisory. You must gather comparable public SaaS companies (e.g., from the Cloud ERP or data integration space) and calculate relevant…
- DCF Valuation
- Comparable Company Analysis
- Financial Modeling
Corporate Finance - AnalysisIntermediateNew
Value a Business Software Scale-Up for Its Series B Round
Working only from the company financial fact pack and the public market-data reference provided to you, value the company three different ways and reconcile the results. First, …
- DCF Valuation
- Comparable Company Analysis
- Venture Capital Method
Open coursework Get recognized by recruiters and employers.
Credentials are blockchain-anchored via LearnCoin — tamper-evident, portable, link-shareable on LinkedIn and beyond.
Why Ewance
- StrategyIntermediateNew
Restructuring a Regional Retail Chain for Digital Survival
Your team's task is to conduct a comprehensive restructuring analysis: evaluate each store's performance (using provided financial data), recommend which stores to close, conver…
- Financial Analysis
- Portfolio Restructuring
- Change Management
Corporate Strategy - AnalysisIntermediateNew
Forecasting Churn for a SaaS Scale-Up
You are a data scientist intern at TaskFlow. Using the provided dataset, perform feature engineering and build a logistic regression or decision tree model to predict churn. Ide…
- Data Analysis
- Regression
- Classification
Data Analytics for Business - CodeIntermediateNew
AI-Driven Sales Lead Scoring for a B2B SaaS Scale-Up
You will receive a sample dataset of 200 leads with fields like company size, industry, email open rates, and website visits. Using AI tools, you must craft prompts to generate …
- Prompt Engineering
- Lead Scoring
- Data Analysis
Data-Driven Prototyping with AI - StrategyIntermediateNew
Migrating from Relational to NoSQL for a Social Media Startup
You are given a simplified relational schema of SnapVibe's current database (users, posts, comments, likes). Your task is to: (1) analyze the limitations of the relational model…
- Nosql
- Mongodb
- Data Migration
Database Systems - AnalysisIntermediateNew
Design TaskFlow's Pricing-Page Experiment Verdict and Decision Proposal
Working only from the two provided materials — the visitor-level experiment dataset (`ab_test_visitors.csv`) and the VP decision brief (`vp_decision_brief.md`) — design a propos…
- A B Testing
- Statistical Analysis
- Bayesian Methods
Open coursework - ResearchIntermediateNew
Field Study: Launching EcoThreads' Reclaimed Line on Social
Investigate how sustainable fashion brands genuinely engage Gen Z on Instagram and TikTok, then design EcoThreads' four-week launch for the Reclaimed line. Ground every recommen…
- Social Media Marketing
- Content Creation
- Influencer Marketing
Open coursework - StrategyIntermediateNew
Evaluate and Launch TaskFlow's Developer Platform Strategy
Using the four materials provided (the TaskFlow company dossier, the competitor ecosystem landscape brief, the financial and customer baseline dataset, and the developer demand …
- Platform Business Models
- API Economy
- Ecosystem Governance
Open coursework - AnalysisIntermediateNew
Design a Causal Measurement Plan for EcoWear's Ad Campaign
Using only the EcoWear weekly sales dataset and the campaign brief listed in the provided materials, design a measurement proposal that estimates the causal effect of the spring…
- Difference In Differences
- Causal Inference
- Time Series
Open coursework - StrategyIntermediateNew
Repair Post-Merger Collaboration at Maison Luxe and EcoDenim
Using only the materials provided, design a three-month cultural integration program for the merged Maison Luxe and EcoDenim organization. First, diagnose the friction using the…
- Cross Cultural Communication
- Merger Integration
- Program Design
Open coursework - AnalysisIntermediateNew
Pivot or Persevere for a Food-Tech Startup
Your team has one week to analyze provided customer data (acquisition channels, churn rates, unit economics) and market research on the B2B office food market. Deliver a recomme…
- Data Analysis
- Unit Economics
- Business Model Canvas
Entrepreneurship and New Venture Creation - ResearchIntermediateNew
Tax Transparency Report for a Renewable Energy Firm
You are a tax and sustainability consultant. Your task is to draft a tax transparency report for SunPower Europe following GRI 207. The report must include a tax strategy statem…
- Gri 207
- Tax Transparency
- Country By Country Reporting
ESG and Sustainability Reporting - AnalysisIntermediateNew
Set the Coupon on SunPower Renewables' €500M Green Bond
Acting as the financial analyst assigned to the deal, work only from the materials provided: the issuance mandate ('issuance-mandate'), the comparable-bonds dataset ('comparable…
- Bond Valuation
- Fixed Income
- ESG Finance
Open coursework
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.