Intermediate Challenges
Real-world scenarios at the intermediate level. Earn verified credentials as you practice the work your degree prepares you for.
- DesignIntermediateNew
Instrument a Model Monitoring Stack from Scratch
Pick the priority product (recommend the customer-service RAG assistant, around 40k queries/day). Define monitoring signals: input drift (Evidently/NannyML), output quality (LLM…
- Model Monitoring
- Data Drift Detection
- LLM Evaluation
ML Engineering and Production ML - CodeIntermediateNew
Mine Health-Forum Posts for Symptom Trend Signals
You receive 6 months of crawled public posts (~400,000 posts, already cleaned of usernames) and access to a UMLS API for normalisation. Build a pipeline that does (1) symptom ex…
- Text Mining
- Biomedical NLP
- Umls Normalization
Linguistic Engineering and Language Technologies - StrategyIntermediateNew
Integrate DataFlow's Engineering and Product Teams
Using the team diagnostic dossier, the leadership vision memo, and the feature delivery metrics dataset provided to you, design and propose a team integration plan for DataFlow.…
- Organizational Design
- Team Dynamics
- Conflict Resolution
Open coursework - ResearchIntermediateNew
Tune a PPO Policy for an Energy-Storage Trading Bot
You receive 18 months of 15-minute Nordic spot-price data, a battery dynamics model (capacity, round-trip efficiency, degradation curve), and a rule-based baseline that earns ab…
- Policy Gradients
- Ppo
- Reinforcement Learning
Deep Reinforcement Learning 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
- AnalysisIntermediateNew
Open-Source License Audit and 60-Day Remediation Plan for Lumen Observability
Work only from the four items in provided_materials. Start with the dependency inventory (the 'Lumen dependency inventory' dataset), which lists every open-source package, its d…
- Oss Licensing
- Sbom
- Supply Chain
Open coursework - StrategyIntermediateNew
Rebuild a Bank's Requirements Baseline for Audit Defense
Working only from the program case file, the current 400-entry requirements spreadsheet, and the auditor's findings note provided to you, produce a judgment and a working baseli…
- Requirements Management
- Traceability
- Governance
Open coursework - 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 - CodeIntermediateNew
Build a CodeQL Query Pack to Catch Logging of Personal Data
Using the provided personal-data source and logging-sink specification, write CodeQL data-flow queries for Java and Python that detect personal data travelling from a source (re…
- Static Analysis
- Codeql
- Data Flow Analysis
Open coursework - Browse challenges
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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.
- AnalysisIntermediateNew
Investigate Director Liability in a SaaS Scale-Up's Failed Deal
Work only from the materials provided: the scenario dossier ('scenario-dossier') that sets out the timeline, the board's delegation of sales authority, and the lost contract, pl…
- Director Duties
- Companies Act 2006
- Business Judgment Rule
Open coursework - AnalysisIntermediateNew
MCMC for Conversion-Funnel A/B Testing at a Marketplace
You receive 6 weeks of per-visitor funnel data (visit, sign-up, trial start, trial-to-paid conversion) split by variant and by acquisition channel (organic, paid social, paid se…
- Mcmc
- Bayesian Hierarchical Models
- Ab Testing
Probabilistic Machine Learning - AnalysisIntermediateNew
Design a Causal Measurement Plan for EcoWear's Ad Campaign
Using only the EcoWear weekly sales dataset and the campaign brief listed in the provided materials, design a measurement proposal that estimates the causal effect of the spring…
- Difference In Differences
- Causal Inference
- Time Series
Open coursework - CodeIntermediateNew
Use Actor-Critic to Auto-Tune a HVAC Control Policy
You receive a Sinergym wrapper around the EnergyPlus model of one floor with 8 thermal zones, weather data for one year, and occupancy schedules. Train a Soft Actor-Critic (SAC,…
- Actor Critic
- Soft Actor Critic
- Continuous Control
Deep Reinforcement Learning Get recognized by recruiters and employers.
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Why Ewance
- CodeIntermediateNew
Build a Zephyr-Based Sensor Node for Industrial IoT
Set up a Zephyr workspace, configure the device tree for the provided nRF52840 + ADXL355 + custom BLE service. Implement: SPI driver for accelerometer at 4 kHz, on-device 1024-p…
- Zephyr Rtos
- Ble Protocol
- Low Power Design
Embedded Systems Engineering - CodeIntermediateNew
Variational Autoencoder for Synthetic Tabular Banking Data
You receive a 500K-row anonymized transaction dataset with 25 columns (mixed numerical + categorical). Train a VAE (TabVAE or a small custom model) with appropriate likelihoods …
- Variational Inference
- Deep Generative Models
- Synthetic Data
Open coursework - CodeIntermediateNew
Harden a Linux Container Runtime Against Privilege Escalation
Receive the pen-test report (with attack chain), the current cluster config (EKS 1.29, default Amazon Linux 2023 worker nodes), and 3 representative workload classes (web API, a…
- Os Security
- Linux Hardening
- Apparmor
Computer Systems Security - AnalysisIntermediateNew
Forecasting Churn for a SaaS Scale-Up
You are a data scientist intern at TaskFlow. Using the provided dataset, perform feature engineering and build a logistic regression or decision tree model to predict churn. Ide…
- Data Analysis
- Regression
- Classification
Open coursework - AnalysisIntermediateNew
Privacy-by-Design Review for a Smart-City Data Platform
Map the new module's end-to-end data flow (sensors -> ingestion -> analytics -> dashboards -> exports). Run a Privacy Impact Assessment against OECD privacy principles + per-ten…
- Privacy By Design
- Privacy Regulation
- Compliance
Information Security Management and Governance - CodeIntermediateNew
Lambda-Calculus Semantic Parser for a Math-Tutor EdTech
Define a small typed lambda-calculus representation for linear equations and a small set of word-problem templates (rate, age, mixture). Build a parser that maps surface express…
- Semantic Parsing
- Lambda Calculus
- Symbolic Reasoning
Computational Semantics - CodeIntermediateNew
Design an Event-Sourced Inventory System for a Third-Party Warehouse
Working from the operations case file and the warehouse domain specification, design an event model of twelve to fifteen events that covers the warehouse lifecycle (receive, put…
- Event Sourcing
- Cqrs
- Eventstoredb
Open coursework - StrategyIntermediateNew
Repair Post-Merger Collaboration at Maison Luxe and EcoDenim
Using only the materials provided, design a three-month cultural integration program for the merged Maison Luxe and EcoDenim organization. First, diagnose the friction using the…
- Cross Cultural Communication
- Merger Integration
- Program Design
Open coursework - CodeIntermediateNew
Edge-Inference Pipeline for a Smart-Factory Vibration Monitor
Architect a pipeline that runs on an ESP32-S3 + STM32 combo (provided): (1) sample 3-axis accelerometer at 3.2 kHz, (2) compute windowed FFT features on-device every 1s, (3) run…
- Edge Computing
- Embedded Systems
- Sensors And Actuators
Internet of Things and Cyber-Physical Systems - ResearchIntermediateNew
Compare Kernel Methods to Trees on a Genomics Classification Task
You receive a curated benchmark of about 12,000 labeled variants with ~120 numerical + ~40 string features. Fit kernel SVMs (RBF, polynomial, string), random forest, and XGBoost…
- Kernel Methods
- Svm
- Tree Ensembles
Statistical Machine Learning - CodeIntermediateNew
Build a GitOps Rollout Pipeline with ArgoCD Progressive Delivery
Receive the current CI pipeline (GitHub Actions runs kubectl apply against EKS), one representative service (Go API, 8 replicas, 4ms p99 SLO, 0.1 percent error-rate SLO), and ac…
- Kubernetes
- Gitops
- Argocd
Container Orchestration with Kubernetes - StrategyIntermediateNew
Board Composition Reform at a Family-Owned Manufacturing Firm
You are a corporate governance advisor hired by the supervisory board. Your task is to design a new board structure that includes independent directors, defines clear roles for …
- Board Structure
- Succession Planning
- Co Determination
Corporate Governance
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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