Transversal
Data Visualization & Reporting Challenges
Data Visualization & Reporting challenges put you inside the work of turning numbers into decisions people can act on. You'll develop skills in Chart Selection, Chart Reading, and Dashboard Design, and you'll design KPI & OKR metrics while building KPI Dashboards that make performance legible at a glance.
From there you'll handle the harder edges — Storytelling with data, Multi-source data narratives, and Executive dashboards — working with Tableau or Power BI dashboards the way reporting teams actually do. Each challenge you solve earns a verified credential you can share with recruiters.
- ResearchSeniorNew
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 - AnalysisFoundationalNew
Pricing Strategy for a Sustainable Fashion Brand
You are a pricing analyst at EcoWear. Using the survey data (simulated with 500 responses) and competitor prices, perform a conjoint analysis or price elasticity analysis. Deter…
- Data Analysis
- Statistics
- Data Visualization
Open coursework - CodeBeginnerNew
Forecast Hourly Energy Demand for a Microgrid Operator
You receive 24 months of hourly demand, weather (temperature, irradiance), and calendar data for the community. Build a probabilistic forecaster (e.g., quantile regression with …
- Probabilistic Forecasting
- Quantile Regression
- Deep Forecasting
Open coursework - StrategyBeginnerNew
Design a Talent Retention Strategy for a Renewable Energy Firm
Working only from the three materials provided to you — the exit-interview record, the monthly turnover and headcount tracker, and the market compensation benchmark sheet — anal…
- Retention Analysis
- Turnover Metrics
- Compensation Benchmarking
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
- 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
Open coursework - AnalysisBeginnerNew
Lower TikTok Acquisition Costs for a Direct-to-Consumer Cosmetics Brand
Working only from the materials provided, diagnose what makes some of the brand's TikTok ads far cheaper to convert than others and recommend how to reshape future creative. Sta…
- Web Scraping
- Content Analysis
- Data Visualization
Open coursework - CodeSeniorNew
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 - AnalysisBeginnerNew
Customer Lifetime Value Model for SaaS Scale-up
You are provided with a dataset of 5,000 customers with features: acquisition channel, monthly spend, tenure, number of support tickets, product usage metrics, and churn flag. Y…
- Customer Lifetime Value
- Predictive Modeling
- Customer Segmentation
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.
- AnalysisBeginnerNew
Build a Public Open-Data Dashboard for Urban Mobility
Pull the city's open-data cyclist-collision dataset (10 years of incidents, geocoded). Define a clear before/after window around the protected-lane rollout, control for traffic-…
- Exploratory Data Analysis
- Data Wrangling
- Geospatial Analysis
Applied Data Analysis and Practical Data Science - AnalysisFoundationalNew
Controlling Inventory for a Sustainable Fashion Brand
Your task is to develop an inventory control system for EcoThreads. You must analyze historical sales data (provided in a CSV), identify patterns, propose KPIs (e.g., turnover r…
- Inventory Management
- Data Analysis
- KPI Definition
Principles of Management - CodeIntermediateNew
Ship an Engineering-Health Dashboard for an 18-Team Org
Using the four sample data extracts (pull-request events, Linear work-item history, PagerDuty incidents, and the quarterly developer-experience survey) and the organization brie…
- Software Analytics
- Dora Metrics
- Space Framework
Open coursework - AnalysisFoundationalNew
Investigate Price Sensitivity for GlowSydney's New Moisturizer
Working solo, begin by exploring the GlowSydney transaction history (provided as the dataset 'glowsydney-transactions') to summarize how prices and units sold are distributed, u…
- Descriptive Statistics
- Linear Regression
- Data Visualization
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
- CodeBeginnerNew
Implement a Distance-Vector Routing Algorithm
Implement distance-vector routing in Python: each simulated router maintains a distance vector, exchanges vectors with neighbors every 1 second of simulated time, and updates it…
- Routing
- Distance Vector
- Network Simulation
Open coursework - StrategyIntermediateNew
Design a Yield Management Framework for NordicStays
Design a yield management framework for NordicStays and present it as a proposal the executive team can act on. Work only from the three materials you are given: the historical …
- Yield Management
- Revenue Optimization
- Forecasting
Open coursework - ResearchSeniorNew
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 - StrategyBeginnerNew
Balanced Scorecard for CloudMetrics' Shift to Enterprise Sales
Using the company snapshot and the current metrics extract provided in the materials, design a balanced scorecard with four perspectives: financial, customer, internal processes…
- Balanced Scorecard
- KPI Design
- Strategic Alignment
Open coursework - 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 - AnalysisBeginnerNew
Decode Reddit Sentiment for EcoWear's Biodegradable Sneaker Launch
Working only from the provided materials, reconstruct and interpret the public conversation around EcoWear's launch. Use the EcoWear Launch Dossier to ground yourself in the tim…
- Web Scraping
- Sentiment Analysis
- Topic Modeling
Open coursework - DesignBeginnerNew
Balanced Scorecard for a Lisbon Vegan Meal-Kit Startup
Design a complete Balanced Scorecard for the startup including a strategy map, 12-16 KPIs across the four perspectives, target values, and an explanation of cause-and-effect lin…
- Balanced Scorecard
- KPI Design
- Strategy Mapping
Open coursework - 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
Open coursework - AnalysisBeginnerNew
Reducing Defect Rate in Stockholm D2C Cosmetics Production
Your task is to collect and analyze production data (provided in a simulated dataset) to identify root causes of defects. Use control charts (X-bar and R) and process capability…
- Statistical Process Control
- Process Capability Analysis
- Root Cause Analysis
Open coursework - DesignIntermediateNew
Design a Churn Prediction and Retention Proposal for ConnectTel
Using the ConnectTel customer sample (the provided dataset) and the ConnectTel retention context brief, design a proposal for predicting which customers are most likely to leave…
- Logistic Regression
- Classification Metrics
- Feature Selection
Open coursework - AnalysisBeginnerNew
Inflation Hedging for a Lagos D2C Cosmetics Brand
Your task is to analyze recent inflation data, Central Bank of Nigeria (CBN) monetary policy, and USD/NGN exchange rate trends. Then, propose a combination of financial instrume…
- Inflation Analysis
- Monetary Policy
- Exchange Rate Forecasting
Open coursework - CodeSeniorNew
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
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.
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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.