Real-World 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.
- CodeBeginnerNew
Image-Classification Model for a Quality-Control Line at a Bottling Plant
Train an image classifier on 8,000 labeled bottle images (3 defect classes + 'ok'). Use transfer learning from a pre-trained backbone (EfficientNet-B0 or MobileNetV3) — the line…
- Deep Learning
- Supervised Learning
- Ml Applications
Machine Learning (CS Elective) 
CodeBeginnerNewBuild a Pricing-Aware Scheduling Agent for Smart Thermostats
Using only the materials provided, build an intelligent agent with four working parts: perception (read the sensor history), learning (cluster each household's comfort intervals…
- Intelligent Agents
- Basic Learning
- Python Programming
Open coursework- CodeSeniorNew
Vectorize a Risk-Calculation Engine for a Mid-Cap Bank
Receive the existing pricer (C++17, scalar, around 600 lines), 2 weeks of representative input data (around 50M paths), the validation harness, and access to an Intel Ice Lake-S…
- Vectorization
- Avx 512
- Simd
Performance Engineering of Software Systems - DesignIntermediateNew
Prototype an Embedded Dashboard for an EV Charger
Define the 3 user modes (driver: 4 screens, operator: 5 screens, technician: 3 screens) and their entry conditions (NFC card type, PIN, technician key). Build a 12-screen protot…
- Embedded Ui
- Figma
- Framer
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
- CodeFoundationalNew
Rule-Based Intent Classifier for a Customer-Support Triage Bot
Build a rule-based classifier in Python that runs ordered rules (regex + keyword + simple heuristics) against ticket subject + body. Use a hierarchical rule structure (high-prec…
- Knowledge Representation
- Rule Based Systems
- Python Programming
Introduction to Artificial Intelligence (CS Elective) - DesignIntermediateNew
Author a SOC 2-Ready Incident Response Playbook for Kestrel Pay
Using the Kestrel Pay company dossier and the current pinned-message 'playbook' (both provided), author a four-phase playbook — Prepare, Detect & Analyze, Contain/Eradicate/Reco…
- Incident Response
- NIST Sp 800 61
- Security Governance
Open coursework - CodeIntermediateNew
Design a Multi-Tenant Kubernetes Namespace-Provisioning Self-Service
Design and build a Backstage scaffolder that lets a squad request a namespace (specifying environment, owners, expected scale). The scaffolder generates a pull request to a GitO…
- Platform Engineering
- Kubernetes
- Self Service
Platform Engineering - DesignIntermediateNew
Design a UV-Preserving Mesh Simplification Pipeline for 3D-Scan-to-Web
Using the textured high-resolution meshes in the scan corpus (scan-corpus), the engineering constraints in the engineering brief (engineering-brief), the integration contract in…
- Geometry Processing
- Mesh Simplification
- 3d Rendering
Open coursework - Browse challenges
Explore role
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.
- StrategyIntermediateNew
Recover a Red-RAG Enterprise Implementation Mid-Flight
Pull 7 months of project artifacts (Jira, status reports, change requests, meeting minutes, time-tracking). Interview 6 people across the delivery team + 3 from the client side.…
- Project Recovery
- Estimation
- Scope Management
Software Project Management - DesignBeginnerNew
Design a Real-Time 3D Bag Configurator for Milan Brand
Produce a design proposal for an in-browser 3D bag configurator and justify every major decision against the materials provided. Use the reference 3D bag model (a real public gl…
- Webgl
- 3d Rendering
- Shading And Lighting
Open coursework - AnalysisIntermediateNew
Build a Technical Debt Register for a Legacy Banking Monolith
Run 8 structured 45-minute engineer interviews (template provided) capturing one debt item per pain point with reproducible evidence. Run SonarQube against the monolith for a qu…
- Technical Debt
- Debt Quadrant
- Code Quality
Technical Debt Management - DesignBeginnerNew
Design a Negotiation Support Tool for Climate-Tech Supplier Contracts
You will design and prototype a negotiation support tool for a single supplier contract with six issues (price per kg, delivery lead time, minimum order quantity, payment terms,…
- Negotiation Modeling
- Decision Support Systems
- Multi Issue Bargaining
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
CodeBeginnerNewKnowledge-Graph Recommender for a Lisbon Bookstore
Using the catalog sample (catalog_sample), build a knowledge graph whose nodes are books, authors, genres, themes, eras, and awards, and whose edges capture relationships such a…
- Knowledge Representation
- Knowledge Graphs
- Python Programming
Open coursework- StrategyBeginnerNew
Build a Tiered Vendor-Security Review Program, Validated by a 12-Vendor Pilot
Using the de-identified subprocessor inventory and the twelve-vendor pilot dossier provided, design a three-tier risk program (critical, important, low-risk) with explicit, obse…
- Third Party Risk
- Security Governance
- Compliance
Open coursework - DesignIntermediateNew
Cut a 42-Minute Trino Query to Under Five Minutes
Using the slow query, the EXPLAIN ANALYZE readout, the Iceberg table schemas, and the 30-day execution-metrics dataset provided, design an optimization proposal that cuts the cr…
- Trino
- SQL Optimization
- Iceberg
Open coursework - CodeSeniorNew
Diagnose Heap Corruption in a Trading Firm's Order Gateway
Working only from the materials in this case file, reconstruct what is corrupting the heap. Read the representative order-pool allocator module (item: gateway-allocator-module) …
- Cpp Programming
- Manual Memory Management
- Pointers
Open coursework - CodeIntermediateNew
Implement and Tune HyperLogLog for Trace-Stream Cardinality in Go
Working from the HyperLogLog paper (provided as a real source) and the provided representative trace sample, implement HyperLogLog from scratch in Go with no third-party algorit…
- Randomized Algorithms
- Sketching
- Algorithm Analysis
Open coursework - CodeIntermediateNew
Real-Time Collaboration Whiteboard with WebSockets
Design the board state model (sticky notes + cursor positions) and pick a conflict-resolution approach (last-write-wins for v1, or operational-transform if scoping allows). Buil…
- Websockets
- React
- Nodejs
Open coursework - ResearchBeginnerNew
Run a Stakeholder Discovery Program for a Hospital Records Replacement
Using the discovery context and stakeholder roster in the case file, design and run a structured program of 38 interviews (45 minutes each) covering the 28 clinicians, 6 technol…
- Stakeholder Analysis
- Requirements Elicitation
- User Interviews
Open coursework - StrategyBeginnerNew
Continuous-Improvement Kata for a SaaS Engineering Org
Read Mike Rother's 'Toyota Kata' framework + 'The Kata Coaching Practice Guide'. Design a lightweight Improvement Kata for the 3 pilot teams: vision (engineering quality), targe…
- Continuous Improvement
- Toyota Kata
- Coaching
Open coursework - DesignSeniorNew
Redesign a Microfinance App for Four Cross-Cultural Markets
Using the current-app flow specification, the retention-and-funnel dataset, the field-session readouts, and the Unicode locale-data reference, design a culturally adaptive versi…
- Cross Cultural Design
- User Research
- Contextual Inquiry
Open coursework - DesignIntermediateNew
Observability for a Microservices Payments Platform
Design the observability architecture: OpenTelemetry traces from 38 services into Tempo, structured logs via Loki, RED (rate, errors, duration) metrics via Prometheus, SLOs defi…
- Observability
- Opentelemetry
- Slo Design
Open coursework - AnalysisBeginnerNew
Exploit and Remediate Eight Web Flaws on a FinTech Practice Range
Using the eight challenge specifications in the provided challenge specification brief and the representative Rails module in the provided vulnerable application source bundle (…
- Web Security
- OWASP Top 10
- Penetration Testing
Open coursework - CodeIntermediateNew
Predict Loan Default Risk for a Cross-Border Fintech
You receive 18 months of transactions (around 12M rows) and seller-firmographic data. Define a defensible proxy label for default (e.g., a 60-day chargeback-or-dispute spike com…
- Feature Engineering
- Model Selection
- Model Evaluation
Open coursework
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