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
- 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 - DesignBeginnerNew
Use-Case Specification for a Marketplace Disputes Workflow
Identify 5 primary use cases (e.g., 'Buyer opens dispute within 7-day window', 'Seller counters with evidence', 'Operations escalates to refund'). For each: actors, precondition…
- Use Cases
- Cockburn Template
- Requirements Specification
Requirements Engineering - PresentationBeginnerNew
Requirements Validation Workshop for a Government Permits Portal
Convert the 12 main flows in the requirements document into concrete executable scenarios (think Gherkin: Given / When / Then) with realistic data (anonymized real permits). Wal…
- Requirements Validation
- Executable Scenarios
- Gherkin
Requirements Engineering - CodeIntermediateNew
Supply-Chain Hardening: SLSA-Aligned Build Pipeline for an Apache Project
Audit the project's current release pipeline (GitHub Actions, release-script). Map the current state against the SLSA v1.0 requirements (source, build, provenance, dependencies)…
- Supply Chain
- Slsa
- Sigstore
Open Source Contribution and Maintainership 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
- ResearchIntermediateNew
Industrial Case Study: Why a Microservices Migration Failed
Conduct 8 1-hour interviews across CTO, 3 tech leads, 2 platform engineers, 1 SRE, and the product VP. Analyze 24 months of artifacts (ADRs, RFCs, incident reports, deployment d…
- Industrial Case Study
- Qualitative Research
- Software Architecture
Advanced Software Engineering - DesignSeniorNew
Design a Cross-Chain Bridge Protocol with Honest Threat Model
Read the Vitalik 'cross-chain interoperability' essay and survey 3 existing bridge designs (lock-and-mint, atomic-swap, optimistic-rollup-native). Design your protocol around a …
- Blockchain Protocols
- Smart Contracts
- Solidity
Blockchain and Decentralized Systems Engineering - DesignIntermediateNew
Design an Idiomatic REST + Webhooks API for a Logistics SaaS
Read the team's draft + the public APIs of 3 reference logistics platforms (anonymized, briefing pack provided). Author a 5-page API design guideline covering URL structure (nou…
- API Design
- REST
- Openapi
Software Design and Design Patterns - StrategyIntermediateNew
Decompose a CRM Monolith into Bounded Services
Analyze the monolith using NDepend or similar (provided). Identify the top 4-6 candidate service boundaries based on coupling + business-capability seams (likely: Quotation, Pol…
- Strangler Fig Pattern
- Service Decomposition
- Csharp Programming
Enterprise and Business Software Engineering - 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.
- AnalysisIntermediateNew
Architecture Evaluation via ATAM for a Healthcare Platform
Run a 2-phase ATAM (Phase 1: present architecture + elicit quality-attribute goals + analyze approaches; Phase 2: broader stakeholder validation). Capture: business drivers, qua…
- Atam
- Architecture Evaluation
- Quality Attributes
Software Architecture - DesignIntermediateNew
Design a Kanban Flow System for a Platform Team
Map the platform team's current workflow (intake to deploy) and design a Kanban board with 5-7 columns, explicit WIP limits per column, and a class-of-service swimlane for emerg…
- Kanban
- Flow Metrics
- Process Design
Agile Methods and Practices - CodeIntermediateNew
Repository + Unit-of-Work Refactor on an EF Core Codebase
Read the data-access patterns across the 5 bounded contexts (Payroll, Timesheets, Benefits, Org, Reporting) and tag the 12 worst N+1 incidents from the last quarter's traces. Au…
- Repository Pattern
- Unit Of Work
- Design Patterns
Software Design and Design Patterns - CodeIntermediateNew
Design an Anti-Corruption Layer for a Legacy Hospital EHR
Map the legacy EHR's HL7 v2 message schema (ADT, ORM, ORU segments) to the new platform's domain (Patient, Encounter, Order, Result). Identify the 6-10 anti-patterns in the lega…
- Anti Corruption Layer
- Hl7 Integration
- Domain Modeling
Domain-Driven Design Get recognized by recruiters and employers.
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Why Ewance
- DesignIntermediateNew
Design an Event-Driven Reporting Pipeline for an Enterprise BI Team
Map the 9 source systems by extraction approach: CDC where possible (Debezium for SAP HANA + MES databases), event hooks where the source supports them (Salesforce streaming API…
- Change Data Capture
- Kafka
- Debezium
Enterprise and Business Software Engineering - AnalysisBeginnerNew
Developer-Experience Audit of a Public API
Walk through the existing public API as a first-time developer using only the public docs, OpenAPI spec, SDKs (Python + JavaScript), and example repos. Run the first-hour test 3…
- Developer Experience
- API Design
- Documentation
API Design and GraphQL - AnalysisIntermediateNew
Defect-Trend Analysis and Quality Action Plan for an EV Charging Platform
Pull 18 months of defect data from Jira + the field-incident system + customer-service tickets. Categorize defects by component, severity, and root-cause taxonomy. Run statistic…
- Defect Analysis
- Statistical Process Control
- Root Cause Analysis
Software Quality and Process Improvement - StrategyIntermediateNew
Roll Out an Advanced Process Model (LeSS) to 6 Product Teams
Read the LeSS framework (Larman + Vodde) and audit the 6 teams' current Scrum practice (anonymized data + 4 hours of recorded ceremonies). Author a 10-page rollout design coveri…
- Advanced Process Models
- Scaling Agile
- Less
Advanced Software Engineering - 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 - 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
- Rabbitmq
- Message Broker Migration
Event-Driven Architecture
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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