Business
ESG, Sustainability & Impact Challenges
ESG, Sustainability & Impact challenges put you inside the work of measuring and disclosing how an organization affects the planet and society. You'll build on Climate Basics and ESG Frameworks, run a Materiality Assessment, and carry out GHG Protocol Scope 1 emissions accounting the way sustainability teams actually do.
From there you'll handle the harder edges — GHG Protocol Scope 2 & 3 accounting, CSRD / ISSB Disclosures, transition planning, and air-quality dispersion modeling — backing every claim with ESG data governance and audit-grade documentation, and mapping outcomes to the UN SDGs. Each challenge you solve earns a verified credential you can share with recruiters.
Recommended Challenges
· Audit-grade documentation Clear- CodeSeniorNew
Implement Threshold Signatures for a Multi-Sig Custody Service
Read the FROST IETF draft (draft-irtf-cfrg-frost) and the underlying Schnorr signature scheme on the secp256k1 curve. Implement the FROST distributed key generation (DKG) and 3-…
- Applied Cryptography
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Applied Cryptography - CodeBeginnerNew
Find and Exploit Web Vulnerabilities on a Capture-the-Flag Range
Receive credentials to the CTF environment, the 8 challenge specifications (each with a target endpoint and a flag to extract), and the Rails source for the vulnerable app. For …
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GPU Cost Dashboard for an AI Consulting Practice
Pull AWS Cost and Usage Report, GCP billing export, and Lambda Labs invoices into a single Parquet table. Implement a tagging convention (project + client + experiment_id) and a…
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Open coursework - CodeIntermediateNew
Apply Software Transactional Memory to a Real-Time Auction Book
Implement two variants of the same auction-book API (best-bid/best-ask lookup, place-order, cancel-order, match-orders): (1) baseline with java.util.concurrent locks + a SkipLis…
- Transactional Memory
- Concurrent Data Structures
- Haskell
Advanced Concurrency and Parallel Computing 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
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Tune Autoscaling for a Cost-Sensitive Workload with HPA + KEDA
Receive the service's current Deployment + HorizontalPodAutoscaler config (static 12-20 replicas), 90 days of traffic logs + Kafka-lag metrics, and the SLA (p99 < 250ms, error r…
- Kubernetes
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Re-Architect a Data-Center Fabric for an AI-Training Workload
Receive the current 3-tier topology diagram, traffic captures from the existing fabric (4 weeks of sFlow), and the rack-level requirements for the 4 new H100 racks (200 Gbps per…
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Advanced Computer Networks - AnalysisBeginnerNew
Threat-Model a Patient-Intake Web App for a Telemedicine Startup
Receive the architecture diagram (Next.js front-end, Node.js API, PostgreSQL, S3 for ID-photo uploads, Clerk for auth), the data-flow description for patient intake, and the SOC…
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Introduction to Computer Security - CodeBeginnerNew
Build an I/O Benchmarking Harness for an Edge Storage Appliance
Receive the appliance specs (4x 7.68TB Gen4 NVMe, ZFS, Linux kernel 5.15), the 3 target workload profiles (4KB random read at QD32, 1MB sequential write at QD8, mixed 70/30 read…
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Computer Systems and Organization - 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.
- DesignBeginnerNew
Architecture Decision Records for a Modernization Program
Read 18 weeks of architecture-channel Slack history and 6 architecture-review meeting notes to inventory decisions already made. Backfill 12 ADRs using Michael Nygard's template…
- Architecture Decision Records
- Technical Debt
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Technical Debt Management
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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