Transversal
Communication & Storytelling Challenges
Communication & Storytelling challenges put you to work making complex ideas land with the people who need them. You'll develop skills in Written Communication, Plain Language Writing, and Presentation Structure, sharpen Public Speaking, and turn numbers into meaning through Data Storytelling.
From there you'll handle the harder edges — Pyramid Principle storytelling, Executive briefing, Board-level communication, Crisis Communication, and Cross-cultural communication — writing Narrative memos and 6-Pagers the way high-trust teams actually do. Each challenge you solve earns a verified credential you can share with recruiters.
- 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 - AnalysisBeginnerNew
Model a City Bike-Share Network as a Graph for Rebalancing
Build a directed weighted graph with stations as nodes and edges as aggregated trip volume over rolling windows. Compute (a) betweenness centrality to find high-traffic stations…
- Graphs
- Networkx
- Shortest Path
Data Structures - ResearchIntermediateNew
Audit Recommender Filter Bubbles for a Civic Forum
You receive 90 days of impression logs (about 30 million recommendation events) tagged with content viewpoint labels (left-leaning, center, right-leaning, non-political) from an…
- Recommender Evaluation
- Diversity Metrics
- Audit Methodology
Social Network Analysis and Web Science - 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 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
- CodeFoundationalNew
Build a Best-First Search Solver for a Delivery Startup's Test Lab
Build a Python module exposing uniform-cost search and A-star search on a 2D grid with weighted cells (open road, traffic, no-go). Implement two admissible heuristics for A-star…
- Search Algorithms
- Heuristic Design
- Python
Introduction to Artificial Intelligence - AnalysisBeginnerNew
Revamping Motivation at a São Paulo D2C Cosmetics Startup
Your task is to conduct a motivational audit using Herzberg's two-factor theory and self-determination theory. You will interview (simulated) employees, identify hygiene and mot…
- Motivation Theory
- Diagnostic Analysis
- Change Management
Organizational Behavior - 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
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 - Browse challenges
Explore role
Strategy Analyst
Frame the business question, model the options, build the recommendation. From market sizing to competitive analysis, this role is where strategy consulting meets in-house decision-making.
- CodeBeginnerNew
Reason about Drone Mission Plans with Probabilistic Logic
Build a small Bayesian network (around 12 nodes) capturing weather, no-fly-zone proximity, battery state, operator certification, and mission risk. Implement exact inference (va…
- Bayesian Networks
- Probabilistic Inference
- Knowledge Representation
Introduction to Artificial Intelligence - DesignBeginnerNew
Designing a Cross-Cultural Communication Workshop for a Global Remote Team
Your task is to design a 4-hour interactive workshop that addresses cultural dimensions (e.g., power distance, direct vs. indirect communication) and provides practical tools fo…
- Cross Cultural Communication
- Workshop Design
- Facilitation
Business Communication - AnalysisBeginnerNew
Spectral-Analyze Wearable Sleep Data for a Healthtech Pilot
You receive 30 nights of wearable data per 25 volunteers, with polysomnography-derived ground-truth stages (Wake / NREM / REM). Engineer spectral features (delta, theta, alpha, …
- Spectral Analysis
- Feature Engineering
- Wavelet Analysis
Time Series Analysis and Forecasting - PresentationBeginnerNew
Storytelling Visualization of an Autonomous Vehicle Test Campaign
You receive aggregated test results: 12,000 test runs across dry, wet, and snow conditions, with metrics for disengagement rate, near-miss count, and route-completion percentage…
- Data Storytelling
- Audience Adaptation
- Chart Design
Data Visualization Get recognized by recruiters and employers.
Credentials are blockchain-anchored via LearnCoin — tamper-evident, portable, link-shareable on LinkedIn and beyond.
Why Ewance
- StrategyBeginnerNew
Pick a Forecasting Stack for an Edtech Engagement Team
You will produce a 6-page strategy memo evaluating three paths: (1) in-house forecasting team (2 engineers), (2) open-source stack (statsforecast + neuralforecast), (3) forecast…
- Ai Strategy
- Build Vs Buy Analysis
- Vendor Evaluation
Time Series Analysis and Forecasting - AnalysisBeginnerNew
Cluster a Mid-Market SaaS Customer Base for Account-Tier Re-segmentation
Pull 12 months of usage signals from the warehouse: feature adoption depth, session frequency, integration counts, ticket volume, NPS (Net Promoter Score), seat utilization. Sta…
- Clustering
- K Means
- Hdbscan
Data Mining and Information Retrieval - StrategyIntermediateNew
Brand Crisis Simulation for a Fast-Food Chain
You are the brand crisis team at QuickBite. Within 48 hours of the video's release, you must draft a public statement, an internal memo, and a 30-day crisis management plan. The…
- Crisis Communication
- Stakeholder Management
- Brand Equity
Brand Management - StrategyIntermediateNew
Internationalization Strategy for a Lagos D2C Cosmetics Brand
Your task is to analyze the attractiveness of three candidate regions (Southeast Asia, Middle East, North America) for GlowNative's expansion, recommend one, and design a detail…
- Market Analysis
- International Business
- Strategic Planning
Strategic Management (Graduate) - AnalysisIntermediateNew
Frequent-Itemset Mining on a Grocery Retailer's Basket History
Load 18 months of basket-level transaction data (Parquet, around 92 GB) into a Spark cluster. Run FP-growth at support thresholds tuned per category (food vs household vs fresh)…
- Frequent Itemset Mining
- Fp Growth
- Spark
Data Mining and Information Retrieval - DesignBeginnerNew
Draft a Model Card for a Generative Image Product
You receive the model's training-data summary, evaluation metrics, intended-use statement, and known failure modes from the ML team. Write: (a) a 3-page plain-language model car…
- Model Cards
- Transparency Documentation
- Responsible Ai
AI Ethics, Fairness, and Responsible AI
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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Industry teams behind a decade of practitioner briefs
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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.