Skills

These carry no proficiency rating, because there is nothing honest to measure them against — they are how the work gets done rather than what it is built with.

Design patterns

Adapter, proxy, facade, singleton, factory, inversion of control, dependency injection — and the principles that decide when not to reach for one.

Application architecture

Object-oriented and functional styles, MVC, and the layering questions that come before either.

Systems

Linux as a daily driver for six years, with Windows and macOS alongside it.

Design

Figma, Photoshop and Illustrator — enough to produce a working mockup before there is anything to build — plus DrawIO and UML for the diagrams that settle an argument.

Delivery

Agile, Kanban or Waterfall depending on the client. Scoping, scheduling, assigning and tracking the work.