Senior Challenges
Real-world scenarios at the senior level. Earn verified credentials as you practice the work your degree prepares you for.
- DesignSeniorNew
Circular Economy Strategy for a Fast Fashion Retailer
As a circular economy strategist, you must design a take-back program for TrendLoop's Amsterdam stores. Analyze customer behavior, logistics, and partnerships (with recyclers, r…
- Circular Economy
- Business Model Innovation
- Logistics
Circular Economy and Sustainable Operations - ResearchSeniorNew
Graph Transformer Research Probe for a Drug-Target Predictor
You receive a public drug-target interaction dataset (around 50,000 drug-target pairs with labels and molecular graphs), a strong GIN baseline, and a starter GraphGPS implementa…
- Graph Transformers
- Neural Networks
- Message Passing
Machine Learning on Graphs - AnalysisSeniorNew
Diagnose a Hard-Real-Time Failure in an Automotive ECU
Receive anonymized AUTOSAR runnable + task traces (CSV + Vector CANalyzer .blf), 8 hours covering 3 failure events. Identify timing budget per task and runnable. Reproduce on th…
- Autosar
- Real Time Debugging
- Can Bus Analysis
Embedded Systems Engineering - CodeSeniorNew
Build a Real-Time Cascade Detection Pipeline for a Trading Platform
Receive 6 months of anonymized trade events (timestamp, ticker, side, volume, account_segment) plus a static follower graph among 50k 'top trader' accounts. Build a streaming pi…
- Streaming
- Network Science
- Graph Analysis
Network Science and Computational Social Science 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
- DesignSeniorNew
Group Reporting Redesign for a Renewable Energy Conglomerate
Your team must deliver a comprehensive group reporting redesign for EcoPower Group. You will receive an overview of the group structure (subsidiaries, associates, joint ventures…
- Consolidation Process Design
- IFRS Compliance
- Intercompany Elimination
Group Accounting and Consolidation - CodeSeniorNew
Port a Numerical Kernel from CPU to GPU for a CFD Simulator
Receive the existing CFD solver (C++17 + OpenMP, around 8,000 lines, the hot kernel is a 7-point stencil sweep over a 512^3 grid), the validation harness, and access to an A100 …
- Gpu Programming
- Cuda
- Parallelism
Performance Engineering of Software Systems - AnalysisSeniorNew
Gender Pay Gap Audit at a Hamburg Tech Scale-up
Your task is to analyze the provided anonymized employee dataset (including salary, job level, tenure, performance rating, and gender) to determine if a gender pay gap exists af…
- Pay Gap Analysis
- Regression Analysis
- Blinder Oaxaca Decomposition
Labor Economics - ResearchSeniorNew
Stress-Test Scalable Oversight on a Tool-Using Agent
Design a sandwich-oversight study: pick a task domain where non-expert oversight is plausible but not trivial (e.g., reviewing data-analysis steps, checking small bug fixes, eva…
- Scalable Oversight
- Alignment Research
- Experimental Design
AI Safety and Alignment - 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.
- StrategySeniorNew
Digital Transformation for a Traditional Swiss Watchmaker
You are a digital transformation lead at Horloge Suisse. Your task is to propose a digital platform strategy that enhances customer engagement and opens new revenue streams. Con…
- Tech Enabled Business Transformation
- Platform Ecosystems
- Blockchain
Digital Strategy and Platforms - CodeSeniorNew
Video Action Recognition for a Retail Loss-Prevention Startup
Use a public action-recognition dataset (UCF101 + a small curated retail-action subset; the latter is provided synthetic or you can label 50 short clips). Fine-tune a small back…
- Video Understanding
- Action Recognition
- Transfer Learning
Computer Vision - DesignSeniorNew
CFC Rules Compliance for a Renewable Energy Group
You are a senior international tax advisor hired by GreenVolt. The group has a complex structure with IP holding companies in zero-tax jurisdictions and financing entities in lo…
- Cfc Rules
- Atad
- Tax Restructuring
International Taxation of Multinationals - AnalysisSeniorNew
Hybrid Legal Structure for a US-Based Benefit Corporation
Your task is to research and recommend a legal structure for EcoThread. Analyze the pros and cons of benefit corporation, L3C, and hybrid models (e.g., for-profit with a nonprof…
- Legal Structures
- Benefit Corporation
- Social Enterprise Law
Social Entrepreneurship and Impact Get recognized by recruiters and employers.
Credentials are blockchain-anchored via LearnCoin — tamper-evident, portable, link-shareable on LinkedIn and beyond.
Why Ewance
- DesignSeniorNew
Build an Edge MLOps Pipeline for a Smart-Agriculture Sensor
You receive a fleet simulator (1,000 simulated sensors with bandwidth + battery profiles), a model registry stub, and the current firmware's model-loading interface. Design and …
- Edge Mlops
- Ota Updates
- Model Versioning
Edge ML and On-Device Machine Learning - CodeSeniorNew
Designing a Bond Trading Strategy for a Hedge Fund
Your task is to design a long-short strategy: long corporate bonds and short gilts (or vice versa) based on spread analysis. Use historical data (provided) to backtest the strat…
- Fixed Income Arbitrage
- Yield Spread Analysis
- Backtesting
Fixed Income and Bond Markets - 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 - DesignSeniorNew
Designing a Cross-Functional Team Structure for a Sustainable Fashion Brand
Your task is to design a cross-functional team structure and provide a change implementation plan. Success means a structure that reduces handoffs, empowers teams, and preserves…
- Organizational Structure Design
- Cross Functional Collaboration
- Conflict Resolution
Organizational Behavior (Graduate) - CodeSeniorNew
Auto-Vectorize an Inner Loop for AVX-512
Profile the existing kernel on a 12-dataset benchmark (provided). Pick one of two strategies: (a) add an LLVM IR-level vectorization pass plugged into the existing pipeline, or …
- Vectorization
- Llvm
- Loop Optimization
Advanced Compilers and Program Optimization - ResearchSeniorNew
Business Cycle Positioning for a Renewable Energy Firm
You are an economic analyst at SunVista. The CFO needs a report on the current and expected Eurozone business cycle to guide the timing of a €500M investment in new solar capaci…
- Business Cycle Analysis
- Macroeconomic Forecasting
- Investment Timing
Global Economy and Macroeconomics for Managers - DesignSeniorNew
Design an OS-Level Side-Channel Mitigation for a Multi-Tenant Cloud
Read 3 canonical cache-side-channel papers (provided). For each attack: characterize the threat model, the required attacker capabilities, and the OS-level invariant that, if he…
- Os Security
- Side Channels
- Virtualization
Advanced Operating Systems - DesignSeniorNew
Design a Strong-Consistency Distributed Counter Service
Design the service end-to-end: storage (Spanner / CockroachDB / FoundationDB — you choose), counter scheme (sharded counters with periodic reconciliation vs strongly-consistent …
- Distributed Databases
- Consensus
- Strong Consistency
Advanced Database Systems - ResearchSeniorNew
Performance Pay for Teachers in a Charter School Network
Your task is to design a performance pay system for teachers that links compensation to student achievement and other performance metrics. The system must address equity concern…
- Performance Pay
- Stakeholder Mapping
- Educational Measurement
Motivation and Incentives - DesignSeniorNew
OTA Firmware-Update Architecture for a 50,000-Device Smart-Meter Fleet
Design a 4-stage OTA architecture: (1) signed image build + manifest, (2) backend rollout (1 percent canary, 10 percent expand, 50 percent expand, 100 percent), (3) device-side …
- Embedded Systems
- Cyber Physical Systems
- Edge Computing
Internet of Things and Cyber-Physical Systems - ResearchSeniorNew
Cross-Cultural Redesign of a Microfinance App for 4 Markets
Run remote contextual inquiry with 4 users each in Kenya + Indonesia (8 sessions total via local interpreters). Conduct expert reviews with native designers for Philippines + In…
- Cross Cultural Design
- User Research
- Contextual Inquiry
Advanced Human-Computer Interaction - CodeSeniorNew
Real-Time Sentiment Analysis for a Sustainable Fashion Brand
You are to develop a real-time sentiment analysis system for EcoWear. Ingest data from Twitter API (hashtag #EcoWear) and a mock review API, process using Spark Streaming with M…
- Spark Streaming
- Mapreduce
- Nosql
Big Data and Cloud Technologies
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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