WORK · CASE STUDY LIBRARY

Work that solves real problems.

Engineering case studies, written the way we work: the problem, the constraints, the decisions, the architecture, and how the result is tested and verified.

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The library

Client case studies are published once they are approved. The studies below are illustrative concepts: design explorations of real problem types, not delivered client engagements. They describe intended results qualitatively and how each would be verified; no metrics are claimed.

Showing 6 of 6 case studies

SYSTEM / CS-0105 LAYERS · 15 COMPONENTS
1. 01Sources
  Wiki
  Shared drives
  Ticket history
2. 02Ingestion
  Connectors
  Chunking
  Permission sync
3. 03Retrieval
  Hybrid search
  Access filter
  Re-ranking
4. 04Generation
  Grounded prompt
  Citation check
  Fallback
5. 05Experience
  Answer UI
  Feedback
  Expert routing
PRIMARY PATHWiki→ Connectors→ Hybrid search→ Grounded prompt→ Answer UI
CS-01Illustrative concept
Knowledge, connected.
- AI
- Software
- Cloud
INDUSTRY
Professional services
PROBLEM
Answers exist across wikis, drives, and ticket history, but people cannot find them quickly, and search ignores who is allowed to see what.
SOLUTION CATEGORY
Retrieval-augmented knowledge assistant
TECHNOLOGY
TypeScript
Next.js
Python
PostgreSQL + pgvector
LLM APIs
OpenTelemetry
INTENDED OUTCOME
Grounded answers with visible sources, scoped to each person’s existing permissions, and a clear route to a human expert when the system cannot answer.
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SYSTEM / CS-0205 LAYERS · 14 COMPONENTS
1. 01Systems
  Orders
  Finance
  Warehouse
2. 02Events
  Webhooks
  Polling adapters
  Event log
3. 03Orchestration
  Workflow engine
  Rules
  Idempotency keys
4. 04Operations
  Exception queue
  Pause / resume
  Audit trail
5. 05Interfaces
  Ops console
  Notifications
PRIMARY PATHOrders→ Webhooks→ Workflow engine→ Exception queue→ Ops console
CS-02Illustrative concept
Operations, in sync.
- Automation
- Software
- Web
- QA
INDUSTRY
Operations & logistics
PROBLEM
Work moves between systems through re-keying and messages; exceptions surface late and are hard to recover.
SOLUTION CATEGORY
Event-driven workflow orchestration
TECHNOLOGY
TypeScript
Node.js
PostgreSQL
Message queue
React
Playwright
INTENDED OUTCOME
Fewer manual handoffs, every exception visible in one place, and failed steps that can be retried without creating duplicates.
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SYSTEM / CS-0305 LAYERS · 14 COMPONENTS
1. 01Device
  Job list
  Forms & checklists
  Photo capture
2. 02Local data
  SQLite store
  Outbox queue
  Media cache
3. 03Sync
  Delta sync API
  Conflict rules
  Resumable uploads
4. 04Backend
  Jobs service
  Scheduling integration
  Media storage
5. 05Back office
  Dispatch view
  Conflict review
PRIMARY PATHJob list→ SQLite store→ Delta sync API→ Jobs service→ Dispatch view
CS-03Illustrative concept
Field work, offline-first.
- Mobile
- Software
- Cloud
INDUSTRY
Operations & logistics
PROBLEM
Technicians work where connectivity drops, so paper notes and end-of-day re-entry create delays, gaps, and errors.
SOLUTION CATEGORY
Offline-first mobile field application
TECHNOLOGY
React Native
TypeScript
SQLite
Node.js
PostgreSQL
Object storage
INTENDED OUTCOME
Jobs that can be completed fully offline, with records synced reliably and conflicts surfaced to a person instead of silently overwritten.
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SYSTEM / CS-0405 LAYERS · 14 COMPONENTS
1. 01Content
  Commerce platform
  CMS
  Search
2. 02Edge
  CDN cache
  Image optimization
  Revalidation
3. 03Application
  Server rendering
  Cart & checkout
  Live price & stock
4. 04Quality gates
  Performance budgets
  Journey tests
  Accessibility checks
5. 05Observability
  Real-user monitoring
  Error tracking
PRIMARY PATHCommerce platform→ CDN cache→ Server rendering→ Performance budgets→ Real-user monitoring
CS-04Illustrative concept
A storefront that holds up.
- Web
- QA
- Cloud
INDUSTRY
Commerce & retail
PROBLEM
The storefront slows down under campaign traffic, and every release feels risky because changes can break checkout.
SOLUTION CATEGORY
Headless storefront and performance engineering
TECHNOLOGY
Next.js
TypeScript
Headless commerce API
CDN caching
Playwright
Lighthouse CI
INTENDED OUTCOME
Pages that stay responsive at peak, an accessible checkout, and releases that ship only after performance and journey checks pass.
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SYSTEM / CS-0505 LAYERS · 14 COMPONENTS
1. 01Change
  Pull request
  Risk tags
  Preview env
2. 02Fast checks
  Unit tests
  Contract tests
  Static analysis
3. 03Journey checks
  Critical E2E
  Visual diffs
  Accessibility
4. 04Release gates
  Performance smoke
  Flake quarantine
  Release report
5. 05Production
  Synthetic monitors
  Error budgets
PRIMARY PATHPull request→ Unit tests→ Critical E2E→ Performance smoke→ Synthetic monitors
CS-05Illustrative concept
Releases, with evidence.
- QA
- Automation
- Cloud
INDUSTRY
Technology & SaaS
PROBLEM
Releases slow down because regression testing is manual, and nobody trusts the existing automated suite because it fails at random.
SOLUTION CATEGORY
Risk-based test automation and CI quality gates
TECHNOLOGY
Playwright
TypeScript
Contract testing
k6
GitHub Actions
Docker
INTENDED OUTCOME
Fast, trusted feedback on every pull request, and release decisions based on a clear report rather than a manual checklist.
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SYSTEM / CS-0605 LAYERS · 14 COMPONENTS
1. 01Intake
  Email inbox
  Upload portal
  Scanner
2. 02Understanding
  OCR
  Classification
  Field extraction
3. 03Validation
  Schema rules
  Confidence thresholds
  Cross-checks
4. 04Review
  Review queue
  Source side-by-side
  Corrections
5. 05Systems of record
  Case system export
  Audit log
PRIMARY PATHEmail inbox→ OCR→ Schema rules→ Review queue→ Case system export
CS-06Illustrative concept
Documents, triaged.
- AI
- Automation
- Software
INDUSTRY
Professional services
PROBLEM
Incoming documents are read, classified, and keyed in by hand; volumes spike unpredictably and errors are caught late.
SOLUTION CATEGORY
AI-assisted document intake and extraction
TECHNOLOGY
Python
OCR
LLM structured outputs
PostgreSQL
Queue workers
React
INTENDED OUTCOME
Routine documents processed with human review where confidence is low, and every extracted field traceable to the text it came from.
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Work that solves real problems.

The library

Knowledge, connected.

Operations, in sync.

Field work, offline-first.

A storefront that holds up.

Releases, with evidence.

Documents, triaged.

Have a problem worth solving?