Industry Challenges Aligned to Your Coursework
Real scenarios from business, engineering, design, and analysis. Practice the work your degree prepares you for, earn verified credentials, build a portfolio recruiters can verify.
- CodeIntermediateNew
Build an Accessibility-First Visualization Component Library
Build a React + TypeScript component library exporting 4 chart components. Each component must: (a) be navigable by keyboard, (b) expose data via accessible name + ARIA descript…
- Accessibility (Wcag 2.2)
- Accessibility (Wcag 2.2)
- React
Information and Data Visualization - CodeSeniorNew
Offline RL for Robot-Arm Skill Reuse
You receive 5,000 logged trajectories (state, action, reward, next-state) across 12 tasks, with 9 tasks for training and 3 held out. Train an offline RL algorithm (CQL or IQL re…
- Offline Rl
- Conservative Q Learning
- Skill Reuse
Robot Learning - AnalysisBeginnerNew
Streamlining Returns for a Tokyo D2C Cosmetics Startup
Your task is to model the current (as-is) returns process in BPMN, analyze it for inefficiencies, and design a to-be process that automates key steps, reduces handling time by 5…
- Bpmn Modeling
- Process Analysis
- Bottleneck Identification
Business Process Management - DesignIntermediateNew
Threat Model a HealthTech Patient-Portal Web App
Read the 25-page redesign architecture document (auth via Clerk, Next.js front-end, FastAPI backend, Postgres, S3 for documents, webhook integration with EMRs). Build data-flow …
- Threat Modeling
- STRIDE
- Secure Design
Software Security Practice your coursework on real scenarios.
Every challenge is shaped from real-world context — not generic exercises. The work mirrors what your degree prepares you for.
Why Ewance
- DesignIntermediateNew
Build an OWL Ontology for a Pharma R&D Knowledge Base
You receive a CSV-form starter knowledge base (around 4,000 compounds, 600 targets, 1,200 assays) and a list of 12 competency questions the scientists currently can't answer wit…
- Ontology Design
- Owl
- Knowledge Representation
Fuzzy Logic, Knowledge Representation, and Symbolic Reasoning - AnalysisBeginnerNew
Hedging Currency Risk for a German Exporter
You are a junior financial analyst at Mittelstand GmbH. The company has a firm order of €10 million from a US client, payable in USD in 6 months, and a £5 million order from a U…
- Currency Hedging
- Derivatives Pricing
- Risk Management
Financial Markets and Institutions - DesignBeginnerNew
Use-Case Specification for a Marketplace Disputes Workflow
Identify 5 primary use cases (e.g., 'Buyer opens dispute within 7-day window', 'Seller counters with evidence', 'Operations escalates to refund'). For each: actors, precondition…
- Use Cases
- Cockburn Template
- Requirements Specification
Requirements Engineering - ResearchSeniorNew
Plan a Parameter-Efficient Fine-Tuning Strategy for a Big-Tech AI Lab
You will produce (1) a 6-page survey of four PEFT methods (LoRA, adapters, prefix tuning, IA3) with their strengths, weaknesses, and parameter footprints, (2) a one-page decisio…
- Parameter Efficient Fine Tuning
- Transfer Learning
- Fine Tuning
Meta-Learning, Transfer Learning, and Multi-Task Learning - Browse challenges
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Marketing Analyst
Plan and measure campaigns that grow the business. Funnel analytics, attribution, segmentation, and the rigorous measurement that lets marketing defend its budget at the leadership table.
- AnalysisIntermediateNew
Revenue Recognition for a SaaS Scale-Up Moving to Enterprise
Your task is to analyze three sample enterprise contracts from CloudFlow, identify performance obligations, determine the transaction price (including variable consideration), a…
- Revenue Recognition
- ASC 606
- Contract Analysis
Financial Accounting (Graduate) - CodeBeginnerNew
Real-Time Data Visualization Dashboard for an IoT Fleet
Build a deck.gl scatterplot layer rendering 38,000 turbine positions on a map base layer. Color-code by status (operational / degraded / offline) updating from a WebSocket strea…
- Webgl
- Gpu Pipeline
- Data Visualization
Introduction to Computer Graphics - DesignIntermediateNew
Build a Feature Store for a Fintech Fraud Team
You will design a feature-store layer covering 12 representative fraud features (account-level, merchant-level, transaction-level), with both batch (Spark) and online (low-laten…
- Feature Stores
- Data Pipelines
- Apache Spark
Machine Learning at Scale - AnalysisBeginnerNew
Resolving Cross-Cultural Conflict in a Global SaaS Remote Team
Your task is to conduct a cultural conflict analysis using frameworks like Trompenaars and Hofstede, identify root causes, and design a team intervention (e.g., a virtual worksh…
- Conflict Resolution
- Cultural Analysis
- Remote Team Management
Cross-Cultural Management Build a verifiable portfolio.
Submissions become evidence. Reviewers with shipping experience score against a rubric; the result becomes a credential anyone can verify.
Why Ewance
- CodeSeniorNew
Design a Raft-Based Consensus Layer for a Multi-Region Database
Implement Raft in Go per the original Ongaro-Ousterhout paper: leader election, log replication with the safety property, snapshotting at 10K-entry granularity, and joint-consen…
- Distributed Consensus
- Raft
- Fault Tolerance
Parallel and Distributed Algorithms - DesignBeginnerNew
Build the PRD for an Internal RAG Knowledge Assistant
You receive: a description of the CS workflows (post-sale onboarding, escalation, renewal), an inventory of internal knowledge sources (Notion, Salesforce, Zendesk macros, 3 pro…
- Product Management
- RAG Architectures
- Evaluation Design
AI for Business and AI Product Management - 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
Behavioural Finance - CodeBeginnerNew
Model a Trading Order Book with Algebraic Data Types in Haskell
Design ADTs for Side (Buy | Sell), OrderType (Limit | Market | StopLimit), Order, Trade, and BookState. Make illegal states unrepresentable (e.g. a Match can never produce a neg…
- Haskell
- Algebraic Data Types
- Property Based Testing
Functional Programming - CodeIntermediateNew
Design Safe Navigation Behavior for a Hospital Delivery Robot
You receive a dataset of 200 anonymized hospital corridor traces (people positions over time from the robot's LIDAR) plus the current planner's parameters. Design a policy that …
- Human Aware Navigation
- Ros2
- Motion Planning
Human-Robot Interaction - StrategyIntermediateNew
Scaling Playbook for Oatly-Style D2C to Retail Transition
Build an integrated scaling playbook addressing org design, hiring plan, capability gaps, and cash-flow implications of the retail transition. You must propose a redesigned org …
- Organizational Design
- Scaling Strategy
- Hiring Planning
Advanced Entrepreneurship and Founders' Skills - CodeBeginnerNew
Implement Progressive Delivery with Flagger for an E-Commerce Backend
Install Flagger (or Argo Rollouts) into the existing Kubernetes + Istio stack. Configure canary analysis using Prometheus metrics: request-success-rate, request-duration p99, an…
- Flagger
- Argo Rollouts
- Canary Deployment
GitOps and Continuous Delivery - CodeBeginnerNew
Build a Wake-Word Detector for a Smart-Speaker Startup
You receive a small public Japanese-speech dataset, 30 hours of recorded wake-phrase utterances from 50 volunteers, and 200 hours of background-noise recordings. Train a lightwe…
- Keyword Spotting
- Speech Recognition
- On Device Ml
Speech Recognition and Spoken Language Processing - StrategyIntermediateNew
Structuring a Series A for a PLG-to-Enterprise SaaS
Evaluate Flowt's business model, unit economics, and market opportunity. Propose a term sheet with specific liquidation preferences, anti-dilution provisions, and board composit…
- Term Sheet Negotiation
- Saas Metrics
- Three Statement Modeling
Venture Capital and Entrepreneurial Finance - CodeBeginnerNew
Build a Plugin-Based Notification Framework With Observer + Factory
Implement, in Java 21: an EventBus that supports typed subscriptions, a NotificationChannel interface with concrete subtypes (Push, Email, InApp, SMS), an AbstractChannelFactory…
- Python Or Javascript
- Design Patterns
- Oo Design
Object-Oriented Programming and Design - ResearchSeniorNew
Investigate Why Our Generative Model Memorizes Training Data
Pick a small open-source diffusion model (e.g., a Stable-Diffusion-class community model trained on LAION-subset). Reproduce a published membership-inference + extraction probe …
- Generative Models
- Memorization Analysis
- Differential Privacy
Advanced Deep Learning - PresentationBeginnerNew
Crafting a Persuasive Investor Pitch for a Madrid D2C Cosmetics Startup
Your task is to create a 10-slide investor pitch deck and a 5-minute spoken pitch. The deck must include a clear problem statement, solution, market size, business model, tracti…
- Persuasive Writing
- Presentation Design
- Storytelling
Business Communication
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