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.
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- PresentationBeginnerNew
Stakeholder ROI Presentation for Implementing a CRM System
Compare three CRM solutions (Salesforce, HubSpot, Pipedrive) for the firm's specific needs. For each: feature comparison, pricing for 15 users, implementation timeline, and trai…
- Business Administration
- Digital Business Models
- Statistics
Open coursework - AnalysisBeginnerNew
GDPR Data Mapping and Privacy Impact Assessment for an E-Learning Platform
Using the provided system architecture and feature specification, deliver: (1) Complete data map showing all personal data flows (collection → processing → storage → deletion), …
- It Security
- Requirements Engineering
- Data Analytics
Open coursework - AnalysisBeginnerNew
Cash Flow Diagnosis for a Tokyo Direct-to-Consumer Skincare Startup
Working as a small team, use the two-year financial statements package (income statements and balance sheets for the financial years ending 2023 and 2024) and the founder contex…
- Cash Flow Analysis
- Ratio Analysis
- Financial Statement Interpretation
Open coursework - StrategyBeginnerNew
Beachhead Selection for a Direct-Air-Capture University Spinout
Using the founder and company dossier, the sorbent technical specification, and the European market-signals dataset provided to you, run a full divergent-then-convergent process…
- Opportunity Evaluation
- Ideation
- Market Sizing
Open coursework 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
- StrategyBeginnerNew
Responsible AI Policy for a HR-Tech Scale-up
Working as a cross-functional team, produce a Responsible AI Policy that addresses: permitted/prohibited use cases, human oversight requirements, data minimization, vendor due d…
- Ai Policy
- Ai Governance
- Stakeholder Management
AI, Ethics and Society - StrategyBeginnerNew
Investigate and Plan Zeno Pay's 90-Day Scrum Transition
Treat this as a field investigation before a plan. Start by reading the Zeno Pay Current-State Dossier (provided case-file) to understand the three squads, the people, and the c…
- Scrum
- Change Management
- Backlog Design
Open coursework - AnalysisBeginnerNew
Field-Screen EV Charging Partners for Numbat's Nordic Push
Treat this as a field investigation of publicly observable site networks. Using the provided Numbat capability brief and the candidate-sites dataset, build a partner-selection f…
- Partner Screening
- Alliance Strategy
- Competitive Analysis
Open coursework - AnalysisBeginnerNew
Fraud Risk Assessment at a Fast-Growing Jakarta Fintech
Working in a team of 3-4, build a fraud risk register covering at least eight fraud risks across revenue recognition, expected credit loss estimation, management override, and r…
- Fraud Risk Assessment
- Analytical Procedures
- Data Analytics
Auditing and Assurance - Browse challenges
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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.
- AnalysisBeginnerNew
Field Investigation: Heartland Bank's Liquidity Under a Deposit Run
Investigate, then plan. Step one: aggregate the position-level holdings in the Heartland Bank position ledger (heartland-position-ledger) to compute the bank's Liquidity Coverag…
- Liquidity Risk
- Lcr
- Nsfr
Open coursework - DesignBeginnerNew
Scaling a Sydney D2C Cosmetics Startup's Data Pipeline
You are tasked with designing a cloud-based data pipeline for GlowUp. The pipeline must ingest real-time user events (page views, purchases, returns) from web and mobile apps, p…
- Cloud Computing
- Apache Spark
- Nosql
Big Data and Cloud Technologies - DesignBeginnerNew
Design a Farm-to-Garment Traceability System for GreenWeave Cotton
Working only from the materials provided, build a feasible traceability design for GreenWeave. Read the batch case file (M1) to trace how one organic cotton lot moved through fa…
- Blockchain
- Supply Chain
- Tokenization
Open coursework - AnalysisBeginnerNew
Redesign GlowCycle's Subscription Pricing to Cut Skincare Churn
Using only the GlowCycle subscription dataset and the company context file provided with this challenge, design a new tiered subscription pricing structure that reduces monthly …
- Customer Segmentation
- Predictive Modeling
- Prescriptive Analytics
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
- StrategyBeginnerNew
Simulation-Based Customer Success Staffing Plan for Flowly
Using the historical ticket log, the growth-scenarios brief, and the current-operations and service-level specification provided to you, build a discrete-event simulation of Flo…
- Simulation
- Capacity Planning
- Scenario Analysis
Open coursework - DesignBeginnerNew
Optimizing Inventory for a Toronto D2C Cosmetics Brand
Your task is to design a multidimensional data model (star schema) for inventory management, create an ETL pipeline to load sample data (provided as CSV files), and develop an O…
- Data Warehousing
- Etl
- Olap
Business Intelligence - AnalysisBeginnerNew
Sales Performance Analysis for a 40-Person SaaS Scale-Up
You will receive a dataset containing 500+ sales opportunities with fields like deal value, stage, source, close date, and account size. Your challenge is to design a data mart …
- Data Warehousing
- Etl
- Olap
Business Intelligence - StrategyBeginnerNew
Redesign TaskFlow's Pricing to Win Enterprise Customers
Using the company brief, the current-accounts dataset, and the enterprise-requirements brief provided, design a new pricing-and-packaging strategy for TaskFlow that adds enterpr…
- Pricing Strategy
- Packaging Design
- Product Led Growth
Open coursework - AnalysisBeginnerNew
Reducing Turnover at a Dubai D2C Cosmetics Startup
Conduct a qualitative and quantitative analysis of turnover data (provided in a simulated dataset), including exit interview themes and engagement survey scores. Identify the to…
- Turnover Analysis
- Job Crafting
- Engagement Surveys
Open coursework - StrategyBeginnerNew
Plan TaskFlow's Enterprise Entry Against Established Rivals
Working from the TaskFlow company dossier, the enterprise win/loss deal records, and the competitor intelligence pack provided to you, build a strategy for entering the enterpri…
- Competitor Analysis
- Game Theory
- Go To Market Strategy
Open coursework - StrategyBeginnerNew
Growth Strategy for an Amsterdam D2C Cosmetics Startup
Your task is to analyze GlowUp Naturals' current performance, assess the offline retail opportunity (e.g., partnerships with Sephora or independent boutiques), and propose a pha…
- Market Analysis
- Financial Modeling
- Channel Strategy
Management Consulting - StrategyBeginnerNew
Design Wealthsimple's Innovation Ecosystem Strategy
Using only the materials provided, examine Wealthsimple's current ability to innovate and decide what kind of innovation ecosystem it should build. Read the innovation audit mem…
- Ecosystem Mapping
- Open Innovation
- Corporate Venturing
Open coursework - StrategyBeginnerNew
Revamping Loyalty for a Mexico City D2C Cosmetics Brand
You are hired as a marketing analyst. Analyze Brillo Natural's existing customer data (provided in a simulated dataset) to identify purchase patterns and decision triggers. Prop…
- Consumer Psychology
- Segmentation
- Loyalty Program Design
Consumer Behavior - AnalysisBeginnerNew
Optimize Capital Structure for an Austin Cosmetics Startup
Using the company financial profile and the comparable-companies dataset provided to you, model how different debt-to-equity mixes change the firm's weighted average cost of cap…
- Capital Structure Analysis
- Wacc Calculation
- Modigliani Miller
Open coursework - StrategyBeginnerNew
Build a Credible ESG Governance Framework for Glow & Green
You are a junior ESG consultant engaged by Glow & Green. Using only the de-identified company case file (gg-case-file), the investor ESG demand memo (investor-esg-memo), the cus…
- ESG Frameworks
- Stakeholder Analysis
- Governance Design
Open coursework - AnalysisBeginnerNew
Field-Valuing a Paris Subscription Cosmetics Scale-Up
Investigate using ONLY the supplied materials and the public sources listed in them. First, read the company data pack (case-file) to extract historical revenue, margins, subscr…
- DCF Valuation
- Comparable Company Analysis
- Financial Modeling
Open coursework
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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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