Engineering & Technology
Software Engineering Challenges
Real software-engineering projects on Ewance — design, build, and ship features against production-shaped constraints, not toy exercises. Solve them to build a portfolio of verified, recruiter-checkable proof you can do the work — not just describe it.
Recommended challenges
- StrategyBeginnerNew
Modernize an ERP Customization Strategy via Sidecar Apps
Catalog the 23 customizations by type (workflow, UI extension, integration, report, business logic) and impact on upgrade cycles. For each, propose the right BTP target (CAP ser…
- SAP Btp
- Cap Framework
- Enterprise Architecture
Enterprise and Business Software Engineering - CodeBeginnerNew
Add a Test Harness to an Untested Open-Source CLI
Fork the repo (test mirror provided), set up Vitest with coverage and a CI workflow that fails under 75 percent on the targeted modules. Write characterization tests first (asse…
- Unit Testing
- Integration Testing
- Test Coverage
Software Construction - CodeIntermediateNew
Upstream a Strategic Patch to a Major CNCF Project
Pick a published roadmap area on the chosen project (instructor will sanity-check the choice). Read the project's CONTRIBUTING.md, RFC template, governance model, and the 3 most…
- Oss Contribution
- Rfc Design
- Pr Etiquette
Open Source Contribution and Maintainership - DesignIntermediateNew
Build a Quality Metrics Program for a Medical-Device Software Team
Read the team's QMS (Quality Management System) documents and the IEC 62304 software lifecycle requirements. Design a metric catalog of 12-15 metrics covering process (review-co…
- Quality Metrics
- Iec 62304
- Process Improvement
Software Quality and Process Improvement 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
- 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 - AnalysisIntermediateNew
Empirical Study of PR Review Throughput on a Mid-Sized Monorepo
Pull 8 weeks of PR data from the monorepo (~3,800 PRs across 12 teams) covering open-to-merge time, review-comment count, review-round count, reviewer count, lines changed, and …
- Empirical Software Engineering
- Software Analytics
- Statistical Analysis
Advanced Software Engineering - DesignIntermediateNew
Design a Versioning Strategy for a Public REST API
Receive the OpenAPI spec for the 14 endpoints, 8 months of partner-support tickets tagged 'breaking-change', and the partner-mix breakdown (which endpoints which partner uses). …
- REST API Design
- REST API Design
- API Versioning
API Design and GraphQL - StrategyIntermediateNew
Choose Between Microservices and Modular Monolith for a Scale-Up
Audit the codebase: lines of code per Rails engine, deploy frequency, change-coupling between engines (using git co-change analysis), per-engine on-call burden. Survey the 4 squ…
- Architecture Decision
- Team Topologies
- Modular Monolith
Software Architecture - 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.
- StrategyIntermediateNew
Risk Register and Budget for a Regulated Mobile Banking Launch
Read the launch brief (28 pages) and the regulatory inventory (12 obligations). Build a top-25 risk register categorized (technical, security, regulatory, vendor, operational) w…
- Risk Management
- Regulatory Planning
- Scheduling
Software Project Management - AnalysisIntermediateNew
Audit API Governance Across a Tier-1 Bank's Integration Estate
Inventory the API estate using a combination of Swagger/OpenAPI scrapes (where present) and stakeholder interviews. Build a scorecard covering: spec completeness, auth scheme, v…
- API Governance
- Openapi Spec
- Dora Compliance
Enterprise and Business Software Engineering - CodeIntermediateNew
Refactor a Tangled Order Aggregate at a Logistics Platform
Work in the provided Spring Boot 3 + Java 21 codebase. Identify the true aggregate roots (likely candidates: Order, Shipment, Invoice) and split the god object accordingly. Extr…
- Tactical Ddd
- Aggregate Design
- Java Refactoring
Domain-Driven Design - 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
Software Quality and Process Improvement Get recognized by recruiters and employers.
Credentials are blockchain-anchored via LearnCoin — tamper-evident, portable, link-shareable on LinkedIn and beyond.
Why Ewance
- DesignIntermediateNew
Migrate a RabbitMQ Topology to Kafka for a Healthcare SaaS
Analyze the current RabbitMQ topology + 30 days of message volume data. Map each queue to a Kafka topic with the right partition key (likely patient_id, encounter_id, or clinic_…
- Kafka Event Streaming
- Rabbitmq
- Message Broker Migration
Event-Driven Architecture - CodeSeniorNew
Implement a Proof-of-Stake Consensus Mechanism in Rust
Read the Casper FFG paper (Buterin + Griffith, 2017) and design a simplified PoS implementation in Rust: 21 validators, 32-slot epochs, two-phase finality (justify, then finaliz…
- Consensus Algorithms
- Blockchain Protocols
- Systems Language Proficiency (Go, Rust, C++)
Blockchain and Decentralized Systems Engineering - CodeIntermediateNew
Refactor a Reckless Inadvertent Debt Hotspot
Read the class + git blame to map its responsibilities. Write characterization tests (using approval testing) until you can change behaviour without surprise — target at least 7…
- Refactoring
- Mikado Method
- Characterization Testing
Technical Debt Management - CodeIntermediateNew
Refactor a God-Object Order Service with Strategy + Command
Read OrderService and the last 18 months of bug tickets touching it. Author a 5-page design document showing the current class diagram, the target Strategy-per-order-type + Comm…
- Design Patterns
- Refactoring
- Strategy Pattern
Software Design and Design Patterns - StrategyBeginnerNew
Maintenance Plan for a Donated NGO Web Platform
Run an inventory: dependencies (with known-CVE check), secret exposure, test coverage, deploy process, observability, and on-call. Author a 12-month maintenance plan covering pr…
- Software Maintenance
- Dependency Management
- Security Hardening
Software Engineering Foundations - CodeIntermediateNew
Migrate an Internal Service from REST to gRPC
Receive the existing OpenAPI spec, the Go service code, and 7 days of traffic data. Pick the top 2 RPS-by-method endpoints and design Protocol Buffers (protobuf) message + servi…
- Grpc
- Protobuf
- REST API Design
API Design and GraphQL - StrategyBeginnerNew
Introduce XP Practices to a Legacy E-Commerce Codebase
Run a 6-week intervention with the 7-person checkout team. Week 1: baseline (current test coverage, defect-escape rate, story cycle time). Weeks 2-5: introduce TDD on all new co…
- Extreme Programming
- Test Driven Development
- Ai Pair Programming
Agile Methods and Practices - 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 (Adrs)
- Technical Debt
- Stakeholder Communication
Technical Debt Management - AnalysisIntermediateNew
ISO 25010 Self-Assessment for an Aerospace Avionics Vendor
Read the module's documentation (architecture, requirements, test reports, defect history). For each of 8 ISO 25010 characteristics (functional suitability, performance efficien…
- Iso 25010
- Quality Assessment
- Do 178c
Software Quality and Process Improvement - StrategyBeginnerNew
Code Review Bootcamp for an Early-Stage Mobile Team
Read the team's last 100 merged PRs (export provided) and tag the 10 worst review threads (rubber-stamp, bikeshed, missing context). Draft a 4-page code-review guideline coverin…
- Code Review
- Mentorship & Coaching
- Process Mapping
Software Construction - StrategyBeginnerNew
IDE-Assisted Refactoring Bootcamp for a Junior Backend Team
Design a 5-day curriculum centered on 10 katas chosen for refactoring-pattern coverage (e.g., Gilded Rose for replace-conditional-with-polymorphism, Tennis kata for extract-meth…
- Refactoring
- Katas
- Ide Tooling
Refactoring and Code Smell Detection - CodeBeginnerNew
Apply SOLID Principles to a Notifications Subsystem
Read Notifier and the last 6 months of incidents touching it. Write a 4-page design document mapping each of the 5 SOLID principles to a specific change in the subsystem (Single…
- Solid Principles
- Design Patterns
- Refactoring
Software Design and Design Patterns
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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