Beginner Challenges
Real-world scenarios at the beginner level. Earn verified credentials as you practice the work your degree prepares you for.
- AnalysisBeginnerNew
Model Bogotá's Bike-Share Network as a Graph for Overnight Rebalancing
Using only the supplied station directory, the aggregated origin-to-destination trip table, and the operations brief, build a directed weighted graph where each station is a nod…
- Graphs
- Networkx
- Shortest Path
Open coursework - DesignBeginnerNew
Redesigning Onboarding for a B2B SaaS Scale-Up
You are a design thinking consultant hired by Flowly. Your task is to conduct user research with enterprise prospects (use personas provided), ideate a new onboarding flow, prot…
- User Research
- Ideation
- Prototyping
Design Thinking and Innovation - CodeBeginnerNew
REST API + Admin Dashboard for a Tutoring Marketplace
Map the 5 operator workflows by shadowing 2 operators for 4 hours (recordings provided). Design REST endpoints (Open API spec) covering each workflow with role-based scopes (ope…
- REST API
- Vuejs
- Rbac
Web Application Development - AnalysisBeginnerNew
Overcoming Overconfidence in a Madrid D2C Cosmetics Startup
You are a behavioral finance consultant hired by Luz Natural. Your task is to analyze the founder's recent product launch decisions, identify patterns of overconfidence (e.g., i…
- Overconfidence Bias
- Prospect Theory
- Decision Framing
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Each challenge names the skills it strengthens. Over time, your profile fills with the competences a hiring manager would actually look for.
Why Ewance
- CodeBeginnerNew
Churn-Prediction Model for a B2B Vertical SaaS
Use 18 months of anonymized data (provided) covering: usage events, login frequency, support tickets, NPS responses, billing health, feature adoption, practice firmographics. De…
- Supervised Learning
- Python Programming
- Ml Applications
Machine Learning (CS Elective) - AnalysisBeginnerNew
Cluster a Telco's Subscriber Base for a Pricing Refresh
You receive 12 months of anonymized subscriber-level data: monthly minutes, SMS, mobile data, top-up frequency, top-up amount, churn flag, and tenure. Clean and feature-engineer…
- Clustering
- Feature Engineering
- Exploratory Data Analysis
Data Mining and Knowledge Discovery - CodeBeginnerNew
Ship a Lightweight ML Microservice for an EdTech Reading App
You receive 3 months of session telemetry (around 50M reading events, child-anonymized). Engineer features per session window, train a small classifier (logistic regression base…
- Feature Engineering
- Model Serving
- Containerization
Applied Machine Learning - StrategyBeginnerNew
Circular Packaging for a San Francisco D2C Cosmetics Brand
As a sustainability consultant, you must propose a circular packaging strategy for GlowCycle. Analyze current packaging lifecycle, identify circular options (refill, reusable, c…
- Life Cycle Assessment
- Circular Economy
- Cost Benefit Analysis
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.
- AnalysisBeginnerNew
Is the Optimal Vet-Scheduling Feature Computationally Tractable?
Working only from the materials provided — the product feature specification, the de-identified internal record of the customer request, a representative one-day appointment dat…
- Np Completeness
- Complexity Theory
- Algorithm Analysis
Open coursework - AnalysisBeginnerNew
Transfer Pricing for a Lagos D2C Cosmetics Startup
You are a junior tax consultant hired by GlowLagos. Your task is to analyze the current intercompany transactions (raw material purchases, manufacturing fees, and royalty paymen…
- Transfer Pricing
- Benchmarking
- Functional Analysis
Open coursework - StrategyBeginnerNew
Introduce XP Practices to a Legacy E-Commerce Codebase
Run a 6-week intervention with the 7-person checkout team. Week 1: baseline (current test coverage, defect-escape rate, story cycle time). Weeks 2-5: introduce TDD on all new co…
- Extreme Programming
- Test Driven Development
- Pair Programming
Agile Methods and Practices - AnalysisBeginnerNew
Redesign Glow Naturals' Mumbai Last-Mile Delivery Network
Using the delivery records in 'GN-DELIVERY-LOG', the operational account in 'GN-OPS-FILE', and the unit costs and constraints in 'GN-COST-AND-CONSTRAINTS', diagnose where Glow N…
- Route Optimization
- Cost Benefit Analysis
- Supply Chain Design
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- DesignBeginnerNew
Design a Lean ITIL Service Desk for a Cosmetics Startup
Using the support operations snapshot (support-ops-snapshot), the twelve-month ticket log (support-ticket-log), and the executive mandate (ceo-mandate-and-budget), and drawing o…
- Itil
- Service Desk
- Incident Management
Open coursework - CodeBeginnerNew
AR Try-On Web Experience for a Mid-Cap Eyewear Retailer
Build a Three.js + MediaPipe Face Mesh prototype that runs in a mobile browser (Safari 17+ and Chrome 119+). Load 12 frame SKUs as glb (Graphics Language Transmission Format Bin…
- Ar Development
- Webxr
- 3d Interaction
Virtual and Mixed Reality - StrategyBeginnerNew
Go-to-Market Strategy for a San Francisco D2C Cosmetics Brand
Your task is to develop a go-to-market strategy for GlowSF. Conduct a market analysis of the D2C cosmetics landscape in San Francisco, Los Angeles, and New York. Define a unique…
- Market Analysis
- Brand Positioning
- Go To Market Strategy
Open coursework - ResearchBeginnerNew
Case-Study Analysis of a Public AI Incident
Pick one public AI incident (suggestions: a chatbot's harmful response that went viral, a facial-recognition false-arrest case, a financial-model bias scandal). Produce a 6-page…
- Incident Analysis
- Responsible Ai
- Case Study Research
AI Ethics, Fairness, and Responsible AI - StrategyBeginnerNew
Agile Transformation at a Paris D2C Cosmetics Startup
Your task is to assess GlowUp's current organizational structure and leadership gaps, then propose a phased agile transformation roadmap. The plan should include specific agile …
- Agile Leadership
- Change Management
- Organizational Design
Open coursework 
CodeBeginnerNewBuild a Search-Based Delivery Router for a Madrid Grocery Startup
Build a Python service that exposes a single /route endpoint. It accepts a courier's starting location, a list of delivery stops, and a traffic window, and returns the stops in …
- Search Algorithms
- Intelligent Agents
- Python Programming
Open coursework- AnalysisBeginnerNew
Wireless Security Audit and Hardening for a Telco's Public Wi-Fi
Your analysis task is built entirely on three provided materials: the 80-access-point configuration inventory, the 30-day authentication (RADIUS) log extract for those same acce…
- Wireless Security
- Wpa3
- Eap
Open coursework - AnalysisBeginnerNew
CVP Analysis for a 40-Person SaaS Scale-Up
You are a financial analyst at CloudFlow. Given current PLG pricing (€50/user/month, 10,000 users) and cost structure (€200K fixed, €10/user variable), plus planned enterprise t…
- Cvp Analysis
- Break Even Analysis
- Pricing Strategy
Management and Cost Accounting - CodeBeginnerNew
Build an MLP Baseline for Credit-Default Risk at a Fintech
You receive 18 months of anonymized credit-decision data (around 600,000 applications, 80 features) with a 90-day default label. Train an MLP with regularization (dropout, weigh…
- Mlp
- Regularization
- Tabular Deep Learning
Deep Learning - DesignBeginnerNew
Optimizing Checkout Flow for a Seoul D2C Cosmetics Brand
Your task is to map the current checkout process using a service blueprint, identify pain points (e.g., long load times, confusing steps), and propose a redesigned process with …
- Service Blueprinting
- Process Analysis
- Customer Experience Design
Open coursework - CodeBeginnerNew
Semantic Segmentation for a Solar-Panel Inspection Drone
Use a publicly-available solar-panel dataset (or the PV-Defect-Detection dataset). Fine-tune a small U-Net or SegFormer-tiny on panel/no-panel pixel-level segmentation. Evaluate…
- Semantic Segmentation
- Cnn
- Transfer Learning
Open coursework - StrategyBeginnerNew
Rebranding a Legacy German Brewery
You are a brand consultant hired by Alte Eiche. Your task is to analyze the current brand equity, propose a new brand architecture (e.g., sub-brands or endorsed brands), and des…
- Brand Audit
- Positioning
- Brand Architecture
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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