Design Challenges
Research, wireframe, prototype, hand off — design as a craft, not just visuals.
- DesignBeginnerNew
Design the Architecture for a Library Management System
Read the 30-page replacement RFP. Author a 15-page architecture document covering the C4 model levels 1-3 (context, container, component) for the new system: web app, mobile app…
- Software Architecture
- C4 Model
- Data Modeling
Software Engineering Foundations - DesignIntermediateNew
Social Media Campaign for a Sustainable Fashion Brand
Design a 4-week social media campaign for EcoThreads' new 'Reclaimed' line. Define target audience personas, create a content calendar with 12 posts, propose 3 influencer collab…
- Social Media Marketing
- Content Creation
- Influencer Marketing
Digital Marketing - DesignIntermediateNew
Design a Customer 360 Graph for a Cross-Border Fintech
You receive 500 sample customer records across CRM, payments core, and KYC systems, plus a 50-record entity-resolution benchmark (pairs labelled same/different). Design an OWL o…
- Customer 360
- Entity Resolution
- Owl Ontology
Knowledge Graphs and Semantic Web - DesignBeginnerNew
Design the Onboarding for a Consumer-AI Copilot App
You receive: current funnel analytics (1M trial sign-ups over the last 90 days, current activation rate, current D1/D7/D30 retention), a competitor teardown deck, and the founde…
- Product Design
- User Onboarding
- A/B Testing & Experimentation
AI for Business and AI Product Management 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
- DesignBeginnerNew
Design a Golden-Path Service Template for a Series-D Scale-Up
Design a golden-path template producing a Go (or Node) microservice with: REST + gRPC scaffolding, structured logging (slog or pino), OpenTelemetry tracing, Prometheus metrics, …
- Platform Engineering
- Golden Paths
- Backstage
Platform Engineering - DesignSeniorNew
Structuring an Interest Rate Swap for a UK Infrastructure Fund
You are a structured finance associate at a bank advising InfraBridge. Design a plain vanilla interest rate swap that converts the floating-rate liability to fixed. Provide the …
- Interest Rate Swaps
- Derivatives Pricing
- Credit Risk Modeling
Derivatives and Risk Management - DesignFoundationalNew
Building a Cross-Functional Team for Innovation
Your task is to create a team charter and a 3-month team development plan. You must define the team's purpose, roles, norms, and decision-making processes. Additionally, you nee…
- Team Building
- Cross Functional Collaboration
- Conflict Resolution
Leadership - DesignSeniorNew
Designing a Data Warehouse for a Renewable Energy Firm
You are given sample data from three sources: energy production logs, weather data, and equipment maintenance records. Your task is to: (1) design a star schema with fact and di…
- Data Warehousing
- Star Schema
- Etl Fundamentals
Database Systems - 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.
- DesignBeginnerNew
Architecture Decision Records for a Modernization Program
Read 18 weeks of architecture-channel Slack history and 6 architecture-review meeting notes to inventory decisions already made. Backfill 12 ADRs using Michael Nygard's template…
- Architecture Decision Records (Adrs)
- Technical Debt
- Stakeholder Communication
Technical Debt Management - DesignSeniorNew
Designing a Market-Making Strategy for a New ETF
You are a quantitative analyst at Nova Capital. The new ETF (ticker: AIRO) will track 30 AI and robotics stocks with daily rebalancing. The initial AUM is $200 million. Your tas…
- Market Microstructure
- Etf Arbitrage
- Risk Management
Financial Markets and Institutions - DesignIntermediateNew
NSGA-II Multi-Objective Design for an Edtech Curriculum Recommender
You receive a synthetic student cohort (300 students with skill profiles), a content catalog (around 1,200 items with difficulty + duration + topic tags), and a simulator that e…
- Nsga Ii
- Multi Objective Optimization
- Metaheuristics
Evolutionary Computation and Metaheuristic Search - DesignBeginnerNew
Design a Retrieval Pipeline for a Climate-Research Open Archive
You receive a metadata sample (5,000 documents) plus 50 example researcher queries (mixed-language). Design a retrieval pipeline architecture that: (1) extracts and normalizes s…
- Retrieval Architecture
- Hybrid Search
- Multilingual Search
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Why Ewance
- DesignBeginnerNew
From PLG to Enterprise: SaaS Scale-Up Pricing
You are a product manager at TaskFlow. Your task is to propose a new pricing and packaging strategy that includes enterprise tiers, add-ons, and a sales-assisted model. Constrai…
- Pricing Strategy & Elasticity
- Packaging Design
- Product Led Growth
Business Model Innovation - DesignIntermediateNew
Map Bounded Contexts for a Mid-Cap Insurance Carrier
Facilitate 2 half-day Event Storming sessions with 18 domain experts using Miro. Capture domain events, commands, actors, and policies. Identify 6 to 10 candidate bounded contex…
- Event Storming
- Bounded Contexts
- Context Mapping
Domain-Driven Design - DesignIntermediateNew
Counterfactual Explanations for an Insurance Pricing Model
You receive a trained LightGBM regression model (premium in GBP), the feature schema (28 features, 14 mutable from the customer's side), and 500 sample quotes. Use DiCE (Diverse…
- Counterfactual Explanations
- Dice Ml
- Interpretability
Explainable and Interpretable AI - DesignIntermediateNew
Real-Time Traffic-Sensor Fusion for a Smart Intersection
Design a fusion architecture: per-modality timestamping (NTP-disciplined within 50ms), per-modality confidence weighting (modality-specific noise model), Kalman-filter or partic…
- Sensor Fusion
- Cyber Physical Systems
- Edge Computing
Internet of Things and Cyber-Physical Systems - DesignIntermediateNew
Financial Model for a SaaS Scale-Up's PLG to Enterprise Shift
You are part of a 3-person financial modeling team. TaskFlow provides project management software and currently has 10,000 free users and 500 paying customers (ACV $1,200). The …
- Saas Metrics
- Revenue Modeling
- Excel Dashboard
Financial Modeling - DesignIntermediateNew
Design a Secure-by-Default IoT Device Provisioning Flow
Design end-to-end provisioning: factory bootstrap (per-device key pair burned at manufacture), installer flow (BLE-driven activation, Wi-Fi handoff), cloud-side enrollment (mTLS…
- Iot Security
- Secure Provisioning
- Mutual Tls
Cyber-Physical and Cybercrime Topics - DesignBeginnerNew
Redesign a Confusing Onboarding Flow for a Habit-Tracker App
Run a heuristic evaluation against Nielsen's 10 heuristics on the current 4-screen flow. Recruit 5 participants from the target persona (millennials in self-improvement habits) …
- User Centered Design
- Usability Testing
- Heuristic Evaluation
Human-Computer Interaction - DesignIntermediateNew
Drift-Detect + Self-Heal a Multi-Tenant Kubernetes Estate
Enable ArgoCD auto-sync with selfHeal + prune across all 28 clusters. Add Kyverno cluster policies enforcing baseline standards (registry, resource limits, network policy). Buil…
- Argocd
- Kyverno
- Drift Detection
GitOps and Continuous Delivery - DesignBeginnerNew
Chain-of-Thought for High-School Math Tutoring
You receive 80 practice problems across 4 topics (linear equations, factoring, systems of equations, quadratics), each with the correct answer and an expected age-appropriate ex…
- Chain Of Thought
- Zero Shot Prompting
- Few Shot Prompting
Prompt Engineering - DesignIntermediateNew
Design a Secure Wi-Fi Onboarding Flow for IoT Devices
Design a BLE-based onboarding protocol: device advertises a service UUID on power-on, the companion app discovers, performs an ECDH key exchange, then encrypts and sends Wi-Fi S…
- Link Layer Protocols
- Ble
- Secure Onboarding
Computer Networks - DesignBeginnerNew
Optimizing Inventory for a São Paulo D2C Cosmetics Brand
You are given a CSV file with raw sales, inventory, and supplier data. Your task is to design an E/R diagram, create the normalized relational schema in 3NF, populate it with sa…
- SQL
- Database Design
- Normalization
Database Systems - DesignSeniorNew
Auction Design for a Renewable Energy Certificate Marketplace
Your task is to propose an auction design for GreenCert's REC marketplace. You must compare at least two auction formats (e.g., uniform-price, discriminatory, Vickrey) and recom…
- Auction Theory
- Mechanism Design
- Market Design
Pricing and Revenue Management
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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