Business Challenges
Explore business challenges on Ewance to sharpen the skills employers actually hire for. Practice marketing, finance, operations, and strategy work on real-shaped briefs and earn verified credentials.
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- AnalysisSeniorNew
Brain-Tumor MRI Segmentation Bake-Off
You receive a curated public multi-modal MRI brain-tumor cohort (~600 patients, T1/T1c/T2/FLAIR with whole-tumor / tumor-core / enhancing-tumor masks). Train all three architect…
- Medical Imaging
- Segmentation
- Convolutional Neural Networks
Open coursework - DesignSeniorNew
Design a Distributed Training Job for a 13B-Parameter Model
Decide whether to use Fully Sharded Data Parallel (FSDP), Tensor Parallelism, Pipeline Parallelism, or a hybrid; justify against the 13B-param + 32-H100 setup. Calculate memory …
- Distributed Training
- Fsdp
- Pytorch
Open coursework - AnalysisSeniorNew
Cost-Quality Prompt Optimization at Scale
You receive 2,000 labeled code snippets (human rater consensus score 1-5) and budget for at most 8,000 API calls across the optimization run. Run a factorial sweep of 3 prompt s…
- Prompt Optimization
- Cost Quality Tradeoff
- Experiment Design
Open coursework - ResearchSeniorNew
Design a Distributed-Training Strategy for a Mid-Sized LLM
You will write a 5-page design memo that picks a parallelism strategy for fine-tuning a 13B model on 32 H100 GPUs, with a tokens-per-second estimate, a memory-per-GPU calculatio…
- Distributed Training
- Parallelism Strategies
- LLM Training
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
- AnalysisSeniorNew
Real Options Analysis for Ørsted Offshore Wind Expansion
Construct a base-case DCF for a 1.1 GW US offshore wind project using public assumptions on capex/MW, capacity factor, and PPA pricing. Then layer a real options framework: mode…
- Real Options
- Monte Carlo Simulation
- DCF Modeling
Advanced Corporate Finance - AnalysisSeniorNew
Founder Behavior Diagnostic and 90-Day Plan for a Burnt-Out SaaS CEO
Your task is to read the case file and produce a behavioral diagnostic plus a 90-day intervention plan that the board chair can hand directly to the founder. Examine the de-iden…
- Founder Psychology
- Behavioral Diagnostics
- Executive Coaching
Open coursework - ResearchSeniorNew
Diagnose the Levers of Control at a Stockholm Fintech
Investigate how one real, publicly observable Stockholm fintech (Klarna is the recommended subject) balances Robert Simons' four Levers of Control — belief systems, boundary sys…
- Levers Of Control
- Qualitative Research
- Contingency Theory
Open coursework - AnalysisSeniorNew
Investigate Coffee-Price and Euro Risk for a Vietnamese Exporter
Investigate using only the materials provided. First, observe the real market: track how the Intercontinental Exchange (ICE) robusta coffee futures settlement price and the euro…
- IFRS 9
- Hedge Accounting
- Derivatives
Open coursework - 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.
- StrategySeniorNew
Ethical Marketing Strategy for a Fast Fashion Retailer's Sustainability Line
Your task is to create a marketing campaign for EcoThreads that is transparent, culturally sensitive, and legally compliant. You must develop a communication strategy that highl…
- Ethical Marketing
- Sustainability Communication
- Cross Cultural Marketing
Open coursework - AnalysisSeniorNew
Assess Partnership Risk for WellsTrade's Instant Payments Launch
Using the PayFlow due-diligence data room and the eighteen-month PayFlow operational metrics dataset, identify and quantify the operational, security, compliance, and reputation…
- Operational Risk
- Vendor Risk
- Cybersecurity
Open coursework - ResearchSeniorNew
Buying Behavior Analysis for a Dutch Sustainable Packaging Startup
Your task is to investigate the B2B buying process for sustainable packaging. You will design a semi-structured interview guide based on the buying center framework. Recruit and…
- B2B Marketing
- Buying Behavior
- Qualitative Research
Business-to-Business Marketing - ResearchSeniorNew
Frame Dependence in Investment Decisions for a Renewable Energy Fund
You are a behavioral finance analyst at GreenCap Partners. Your task is to audit past investment decisions for framing effects, then design a decision template that forces consi…
- Frame Dependence
- Prospect Theory
- Decision Framing
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Why Ewance
- AnalysisSeniorNew
Audit a Decentralized Lending Protocol for Smart Contract Vulnerabilities
Working only from the provided lending protocol contract module — which contains LendFlow's core deposit-and-borrow pool together with a simplified price oracle it depends on — …
- Solidity
- Smart Contract Auditing
- Decentralized Finance
Open coursework - StrategySeniorNew
Design a Stakeholder Engagement Plan for SolarVent's Andalusia Solar Farm
Working as a team of three sustainability consultants hired by SolarVent, design a complete stakeholder engagement proposal for the Andalusia solar farm. Ground every recommenda…
- Stakeholder Analysis
- Community Engagement
- Conflict Resolution
Open coursework - StrategySeniorNew
Design a Circular Business Model for EcoWear
Acting as EcoWear's business model innovation analyst, examine the EcoWear company file, the customer behavior dataset, the operations brief, and the circular economy industry r…
- Circular Economy
- Business Model Canvas
- Financial Modeling
Open coursework - DesignSeniorNew
Designing a Feedback Culture for a Remote-First Sustainable Fashion Brand
Research best practices in feedback culture from business psychology (e.g., feedback orientation, psychological safety). Design a feedback system that includes tools, training, …
- Feedback Culture
- Psychological Safety
- Remote Work
Business and Industrial Psychology - AnalysisSeniorNew
Structuring a German-Danish Offshore Wind Joint Venture
Working only from the de-identified deal file (deal-file), the written client instructions (client-instructions), and the two official statutory sources for German and Danish co…
- Cross Border Jv
- Partnership Law
- Corporate Law
Open coursework - DesignSeniorNew
Circular Economy Strategy for a Fast Fashion Retailer
As a circular economy strategist, you must design a take-back program for TrendLoop's Amsterdam stores. Analyze customer behavior, logistics, and partnerships (with recyclers, r…
- Circular Economy
- Business Model Innovation
- Logistics
Circular Economy and Sustainable Operations - StrategySeniorNew
Investigate Germany's Market for EcoThreads' Entry
Your task is to investigate the German sustainable fashion market and produce a recommended entry strategy for EcoThreads. Start from the company facts in the EcoThreads briefin…
- Market Entry
- Competitive Analysis
- Regulatory Analysis
Open coursework - 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 - AnalysisSeniorNew
M&A Strategy: Should Precision Parts Acquire MicroGears?
Using the financial-data workbook and the industry benchmarks memo provided, value MicroGears Ltd. two ways — a discounted-cash-flow analysis and a comparable-transactions analy…
- Mergers And Acquisitions
- DCF Valuation
- Synergy Estimation
Open coursework - StrategySeniorNew
Shareholder Activism Defense for a SaaS Scale-Up
You are a senior strategy advisor to the CEO. Your task is to analyze the activist's demands, evaluate the company's governance vulnerabilities, and propose a response strategy.…
- Shareholder Activism
- Defense Strategy
- Board Dynamics
Corporate Governance - StrategySeniorNew
Alliance Strategy for a 40-Person SaaS Scale-Up Going Enterprise
Your task is to identify and evaluate three potential alliance partners for TaskFlow, considering strategic fit, resource contribution, and risk. For the top candidate, design a…
- Alliance Management
- Partner Evaluation
- Negotiation Strategy
Corporate Strategy - AnalysisSeniorNew
Renewable Energy Investment Under Policy Uncertainty
You are a financial analyst at SunVest. The proposed solar farm has a capacity of 50 MW, construction cost €80M, and expected life 25 years. Key uncertainties: annual electricit…
- Real Options
- Monte Carlo Simulation
- Stochastic Modeling
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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