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
- AnalysisSeniorNew
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 - AnalysisSeniorNew
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 - DesignSeniorNew
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 - StrategySeniorNew
Design a Lean and Culture Transformation for a Legacy Manufacturer
Working only from the materials you are given — a company dossier describing SteelCraft's history, structure, and sources of resistance; a shop-floor operations dataset of scrap…
- Lean Manufacturing
- Organizational Culture
- Change Management
Open coursework 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
- CodeSeniorNew
Build a Visual Search Prototype for Sustainable Fashion
Using the public fashion image dataset and the supplemental product metadata table provided, build an end-to-end visual search pipeline: extract a numeric fingerprint (an embedd…
- Deep Learning
- Computer Vision
- Cnn
Open coursework - AnalysisSeniorNew
Field Study: Dynamic Pricing for GreenGrid's Renewable Power Sales
Your task is to investigate price and renewable-supply behavior in a public electricity market and use that evidence to build a dynamic pricing model for GreenGrid. Work only fr…
- Dynamic Pricing
- Optimization
- Risk Management
Open coursework - StrategySeniorNew
Reposition Mason & Co. to Win Younger Shoppers
Acting as the brand strategist Mason & Co. has retained, design a repositioning proposal for the chain using only the four supplied materials: the company case file, the custome…
- Brand Repositioning
- Customer Segmentation
- Retail Marketing
Open coursework - StrategySeniorNew
Negotiating a SaaS Enterprise Deal with a Fortune 500 Manufacturer
Using the deal case file, the procurement positions brief, the comparable-deals benchmark dataset, and the standard contract and service-level agreement template provided to you…
- Enterprise Sales
- Procurement Negotiation
- Contract Negotiation
Open coursework - 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.
- AnalysisSeniorNew
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 - StrategySeniorNew
Shifting Organizational Culture at a 200-Person Manufacturing Firm
Your team will conduct a cultural assessment using surveys and interviews (simulated data provided). You will map the current and desired culture on the Competing Values Framewo…
- Organizational Culture
- Change Management
- Leadership Development
Organizational Behavior - DesignSeniorNew
Design a Fair-Pricing Auction for a Renewable Energy Certificate Marketplace
Using the GreenCert market context brief and the European certificate-system reference for the regulatory and product backdrop, design an auction that clears trades in this cert…
- Auction Theory
- Mechanism Design
- Market Design
Open coursework - AnalysisSeniorNew
Process Mining for Order-to-Cash in a Mid-Size Manufacturing Firm
Your task is to analyze the provided event log using process mining software (e.g., Disco, Celonis, or ProM). Discover the as-is process model, identify bottlenecks, rework loop…
- Process Mining
- Event Log Analysis
- Bpmn Modeling
Business Process 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
- AnalysisSeniorNew
Feasibility Study: On-Demand 3D-Printed Spare Parts for Wind Turbines
Working only from the materials provided — the WindServ maintenance case file (CF-1), the spare-parts demand and lead-time log (DS-1), the additive-manufacturing costing referen…
- Additive Manufacturing
- Supply Chain Design
- Cost Analysis
Open coursework - StrategySeniorNew
Designing a Six Sigma Project for a Renewable Energy Manufacturer
You are given historical warranty data and production process maps. Your task is to create a comprehensive Six Sigma project charter including a problem statement, goal statemen…
- Six Sigma
- Dmaic
- Measurement System Analysis
Quality and Productivity Management - StrategySeniorNew
Service Quality Improvement for a Regional Hospital Chain
Your task is to conduct a gap analysis using SERVQUAL dimensions (reliability, responsiveness, assurance, empathy, tangibles) based on patient survey data (provided). Identify t…
- Service Quality
- Servqual
- Process Improvement
Service Operations Management - AnalysisSeniorNew
Social Listening for a B2B SaaS Brand Reputation
Your task is to perform a social listening analysis for CloudSync over the past 3 months. Constraints: use only free or trial versions of tools (e.g., Brandwatch, Talkwalker, or…
- Social Listening
- Sentiment Analysis
- Reputation Management
Social Media Marketing - StrategySeniorNew
Build an Impact Measurement Framework for a €10M Green Bond
Working only from the materials provided, design a complete impact measurement framework for Helios Grid Software's green bond. Examine the company dossier (HELIOS-DOSSIER) to u…
- Green Bond Principles
- EU Taxonomy
- Impact Kpis
Open coursework - StrategySeniorNew
Assess ESG Integration in a Family Office Portfolio
Analyze the current portfolio's ESG ratings using MSCI or Sustainalytics data (provided). Identify sectors with high carbon footprint and poor social scores. Recommend a new ass…
- ESG Integration
- Portfolio Optimization
- Impact Measurement
Wealth Management
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.
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Sponsor a challenge and meet candidates through actual work.
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