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WPCasso

Custom engineering

Deep WordPress engineeringfor work that cannot besolved with another plugin.

WordPress can do far more than most stacks give it credit for, when someone actually engineers it. We write the plugins, blocks, integrations, and platform code that turn a WordPress site into a dependable system.

The practice

Eight disciplines, one team.

Every discipline below is work we do inside WordPress specifically, following core coding standards and building for the next developer as much as for launch day.

01

Platform engineering

  • Technical architecture and discovery
  • Multisite and complex configurations
  • Development workflow and CI setup
  • High-traffic publishing platforms
02

Custom plugin development

  • Purpose-built plugins for one job
  • Replacing fragile plugin stacks
  • Admin experiences editors understand
  • Long-term maintainability
03

Theme and block development

  • Custom Gutenberg blocks
  • Full Site Editing themes
  • Design-system-driven builds
  • Editorial workflows that hold up
04

Commerce and membership

  • WooCommerce customization
  • Membership platforms
  • Learning platforms
  • Checkout and payment flows
05

Integrations and automation

  • API integrations
  • CRM integrations
  • Data synchronization
  • Webhook and event pipelines
06

Performance and scale

  • Performance engineering
  • Query and database optimization
  • Caching strategy
  • Core Web Vitals work
07

Migrations and modernization

  • Complex data migrations
  • Legacy codebase modernization
  • Platform-to-WordPress moves
  • Accessibility improvements
08

Rescue and stabilization

  • WordPress rescue projects
  • Inherited codebase assessment
  • Security remediation
  • Stabilize first, then improve

Realistic situations

Bring us the difficult part.

These are the shapes of project that usually reach us. If yours looks familiar, that is exactly the point.

Case shape 01

The checkout fails, but only sometimes

A custom checkout flow is failing under unusual conditions. Nobody can reproduce it reliably, and every plugin update makes the guessing worse. We instrument it, reproduce it, and fix the actual cause.

Case shape 02

The theme fights the marketing team

A legacy theme prevents the marketing team from publishing efficiently. Every landing page needs a developer. We rebuild the editorial layer so the team ships pages without tickets.

Case shape 03

WordPress needs to talk to another platform

A business needs WordPress to exchange data with a CRM, an ERP, or an internal system. We design the integration properly: authentication, retries, failure handling, and logs someone can actually read.

Case shape 04

The plugin stack turned into quicksand

Years of quick fixes left a slow, unstable pile of overlapping plugins. We map what each one actually does, replace what should be code, and remove what nothing uses.

Case shape 05

The codebase nobody wants to touch

An agency inherited a client codebase with no documentation and no previous developer to ask. We assess it, stabilize it, and give you an honest map of what is safe to change.

Case shape 06

Publishing at scale needs a safer path

A high-traffic publisher needs releases that do not risk the site during peak hours. We build the staging, review, and deployment process that makes shipping boring again.

These describe recurring shapes of work, not specific client engagements. Your project will get its own technical discovery before we propose anything.

How a project runs

Discovery before estimates. Estimates before code.

Complex WordPress work fails when someone starts typing before understanding the system. We do not.

    01

    Technical discovery

    We examine the codebase, the data, the integrations, and the constraints. For rescues, this includes an honest assessment of what is safe to touch.

    02

    Written approach and estimate

    You get a plan in plain language: what we will build, what we will not, what it costs, and what could change that. Approval is yours.

    03

    Engineering in the open

    Work happens in version control with visible progress. You see staging builds, not a curtain that lifts at the deadline.

    04

    QA, release, and handover

    Tested against real flows, released with a rollback plan, and documented so any competent developer, including a future one who is not us, can maintain it.

Tell us the part everyone else called impossible.

Describe the project, the problem, and the outcome you need. An engineer will read it, and if we are not the right fit, we will say so.