Design Challenges
Research, wireframe, prototype, hand off — design as a craft, not just visuals.
- DesignIntermediateNew
Design Multi-Tenant Network Policies with Calico Tier Enforcement
Receive the cluster topology (120 customer namespaces + 4 platform namespaces), the application traffic patterns (frontend talks to backend talks to its tenant's database), and …
- Kubernetes Orchestration
- Network Policy
- Calico
Container Orchestration with Kubernetes - DesignFoundationalNew
Build a Tic-Tac-Toe-Style Game Agent for an Edtech Demo
Implement Connect-Four (7-column, 6-row board) in Python plus a minimax agent with alpha-beta pruning, configurable search depth, and a simple heuristic evaluation function for …
- Game Playing Ai
- Minimax
- Alpha Beta Pruning
Introduction to Artificial Intelligence - DesignFoundationalNew
Launching a Sustainable Fashion Line with Influencer Marketing
Develop a complete influencer marketing plan: identify influencer tiers (macro, micro, nano), create a brief for influencers, propose a content strategy, and set KPIs. Include a…
- Influencer Marketing
- Campaign Planning
- Budgeting
Marketing Management - DesignIntermediateNew
Tokenizing Carbon Credits for a Renewable Energy Firm
Your task is to propose a comprehensive tokenization framework for EcoToken's carbon credits. You must select an appropriate blockchain platform (e.g., Ethereum, Polygon, or a p…
- Blockchain
- Smart Contracts
- Solidity
Blockchain and Digital Assets 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
- DesignSeniorNew
Digital Innovation Lab for a Regional Bank
Your task is to design a blueprint for the innovation lab. Define its structure (e.g., hub-and-spoke, virtual team), governance (e.g., stage-gate process), and funding model. Pr…
- Innovation Lab Design
- Regulatory Compliance
- Legacy System Integration
Digital Transformation - DesignIntermediateNew
Design a Transactional Schema for a SaaS Order-Provisioning System
Design the schema for orders, quota packs, consumption events, and refunds. Define each critical transaction (buy, consume, refund) with isolation level and locking strategy. Id…
- Precedent Transactions
- Acid
- Isolation Levels
Introduction to Database Systems - DesignSeniorNew
Multi-Region Failover for an Enterprise RAG Service
Design and prototype: (1) a primary-region deployment of the RAG service (vector DB + LLM inference + retrieval API), (2) a passive secondary region with replicated vector store…
- Multi Region Architecture
- Disaster Recovery
- Terraform
Cloud Computing for Data and ML - DesignBeginnerNew
Designing a Digital Platform for Local Artisans in Nairobi
Your task is to design a digital platform business model for CraftConnect. You must define the value proposition for artisans and buyers, propose a revenue model (e.g., commissi…
- Platform Business Models
- Value Proposition Design
- User Experience Design
Digital Business Models - Browse challenges
Explore role
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.
- DesignIntermediateNew
Author an Incident Response Playbook for a Fintech Startup
Author a 4-phase playbook (Prepare, Detect & Analyze, Contain/Eradicate/Recover, Post-Incident) covering 6 incident classes: data breach, ransomware, account takeover, payment-f…
- Incident Response
- NIST Sp 800 61
- Security Governance
Information Security Management and Governance - DesignIntermediateNew
Wi-Fi 6E Site Survey + Capacity Plan for a Hospital
Import floor plans for 4 buildings (around 38,000 m2 total) into Ekahau or equivalent. Run a predictive survey targeting -65 dBm RSSI in patient rooms + -60 dBm in operating the…
- Wifi 6e
- Rf Planning
- Site Survey
Wireless and Mobile Networks - DesignBeginnerNew
Design Secrets Management for a Regulated GitOps Pipeline
Design the secrets topology: Vault as the single source, External Secrets Operator (ESO) syncing into Kubernetes Secrets with auto-rotation. SecretStore + ClusterSecretStore bou…
- External Secrets Operator
- Hashicorp Vault
- Secrets Management
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 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
- DesignIntermediateNew
Design an Adaptive UI for a Streaming-Platform Recommender
Design 3 adaptive layout variants triggered by session-intent signals (time of day, last-3-session pattern, device class) — without retraining the recommender. Build a high-fide…
- Adaptive Interfaces
- Interaction Design
- A/B Testing
Advanced Human-Computer Interaction - DesignSeniorNew
Impact Measurement Framework for a Green Bond Issuance
Your task is to create a comprehensive impact measurement framework for the green bond. Deliver a KPI dashboard (5-7 metrics), a data collection methodology, a reporting templat…
- Green Bond Principles
- EU Taxonomy
- Impact Kpis
Sustainable Finance and Impact Investing - DesignBeginnerNew
Build an Attention-Visualization Tool for Translation Quality Audit
You will load a small open-source EN-FR transformer (e.g., Helsinki-NLP Opus-MT-en-fr), build a Streamlit or Gradio demo that lets the user paste English source, see the French …
- Attention Mechanisms
- Neural Mt
- Tool Design
Machine Translation - 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
Bootstrap ArgoCD on a Multi-Cluster Platform for an EdTech
Design the repo topology: per-environment vs per-tenant kustomize overlays, ApplicationSet generators for service-per-cluster fan-out, a sync-wave strategy for ordered deploys. …
- Argocd
- Kubernetes Orchestration
- Kustomize
GitOps and Continuous Delivery - DesignFoundationalNew
Stakeholder Workshop on AI Risk for a Public-Sector Pilot
You receive a description of the pilot (24/7 LLM chatbot answering questions on municipal services in Spanish and Catalan). Design a 3-hour workshop for around 25 mixed-stakehol…
- Stakeholder Management
- Workshop Design
- Responsible Ai
AI Ethics, Fairness, and Responsible AI - DesignSeniorNew
Formal Specification of a Rate-Limit Service in TLA+
Specify the rate-limit service's lease-renewal protocol in TLA+ (PlusCal acceptable for readability). Model 3 invariants: (1) at most one node holds a lease for a tenant at any …
- Tla Plus
- Formal Specification
- Model Checking
Requirements Engineering - 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 Or Tensorflow
Machine Learning Systems - DesignIntermediateNew
Migrate a Monolithic Database to a Sharded Topology
Analyze schema (32 tables) + query workload (anonymized 7-day pg_stat_statements export) to identify the right shard key per table. Most tables shard on user_id; identify the 4-…
- Database Sharding
- Postgresql Or Mysql
- Vitess
Distributed Systems - DesignSeniorNew
Dynamic Pricing Optimization for a Ride-Hailing Platform
You are a data scientist at CityRide. Using 6 months of historical trip data (pickup/dropoff, time, fare, surge multiplier), weather data, and local events calendar, you must bu…
- Reinforcement Learning
- Optimization
- Simulation
Data Science for Business - DesignIntermediateNew
Change-Impact Analysis for a Cross-Service API Migration
Pull API logs over 30 days from the API gateway to enumerate all consumers + per-endpoint call volume. Cross-reference with service-catalog ownership to map 23 consumers to team…
- Change Impact Analysis
- API Migration
- Parallel Run
Software Evolution and Maintenance - DesignIntermediateNew
Security Policy Overhaul for a 40-Person SaaS Scale-Up
You are the new IT security manager. Review current policies (provided in a brief), identify gaps against SOC 2 trust service criteria, and produce a new set of 5 core policies …
- Security Policy Development
- Soc 2 Compliance
- Vendor Risk Management
IT Governance and Security
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.
Industry teams behind a decade of practitioner briefs
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Sponsor a challenge and meet candidates through actual work.
Industry teams can shape briefs around the skills they hire for, then evaluate students on rubric-scored deliverables — not resumes.