DEV-213 Development

Advanced React & Frontend Architecture

Move from writing components to owning frontend architecture: rendering behaviour, state boundaries, server-side data patterns, and the performance and accessibility budgets a production app is held to. Learners profile a real application, justify a state management choice against alternatives, and bring a component library under measurable standards.

B4Professional

6modules

43skill atoms

2role journeys

Curriculum

What this course covers.

6 modules, 43 named skill atoms. Expand any module to see them.

1Rendering & Reconciliation8 skill atoms

virtual dom diffingkey stabilityReact Compiler and automatic memoizationwhat the compiler will not memoizekeeping useMemo for imperative libraries and reference-identity contractsconcurrent rendering and transitionsstrictmode double invokewasted-render profiling

2State Management Choices7 skill atoms

local vs server stateredux toolkitzustand and jotaireact query cache semanticsderived state anti-patternscontext re-render blast radiusnormalized entity stores

3Server Components & Data Fetching7 skill atoms

server vs client componentssuspense boundaries and streamingrequest waterfalls vs parallel fetchescache and revalidate semanticshydration mismatch errorsserver actionsuse client boundary discipline

4Performance & Bundle Budgets7 skill atoms

react profiler flamegraphscode splitting with lazyroute-level chunkinginp and long-task measurementimage and font loading strategybundle analyzer budgetsthird-party script cost

5Accessibility & Design Systems7 skill atoms

semantic landmarksfocus management in dialogsaria used sparinglykeyboard trapstoken-driven themingheadless component primitivesvisual regression tests on components

6AI-Generated Components Under Review7 skill atoms

scaffolding vs architectural intentgenerated hooks with wrong dependency arraysdeprecated lifecycle and legacy context suggestionsinvented library apisaccessibility gaps in generated markupbundle bloat from suggested dependenciesengineer accountable for render cost

Where it fits

DEV-213 in the role journeys.

This course appears in 2 of our 45 role journeys. Here is what a learner takes immediately before and after it in each.

Full-Stack Developer

Professional stage

DEV-401→DEV-213→DEV-214

Frontend Engineer

Professional stage

DEV-301→DEV-213→DEV-224

Roles this course serves

Frontend Engineer Full-Stack Developer

The capability ladder

This course is authored to band B4.

Every course we run is written to one rung of the CASI ladder, so a plan can be assembled to take a team from where they are to where they need to be.

What do B1–B6 mean?The CASI Capability Ladder — click to expand

Every course targets a band on the CASI Capability Ladder — our six-band proficiency scale, anchored to open standards (O*NET, ESCO, NICE, NIST AI RMF, Bloom's). A band tells you how deep a course goes, and what evidence proves it.

What the learner can doTypical evidence

AwareUnderstands concepts and vocabulary; uses tools with guidance

Knowledge checks

FoundationPerforms standard tasks correctly in familiar contexts

Guided labs, autograded exercises

PractitionerDelivers complete pieces of work independently

Scenario labs, proctored hands-on exams

ProfessionalHandles production-grade complexity, trade-offs and failure modes

Break-fix drills, design defenses

AdvancedEngineers systems end-to-end under constraints; leads others

Rubric-scored capstones, vivas

ExpertSets direction; recognised authority across teams

Portfolio + panel evaluation

A note on B6. Courses in this catalog target B1–B5. B6 is not taught — it is recognised, through a portfolio and a panel, once someone is setting direction for others. Every journey here is built to land a learner at B5.

Other Development courses at this level.

DEV-202

Run DEV-213 for your team.

This course runs at several lengths depending on how deep you need to go and how much of it your people already have. Tell us who is being trained and we will scope it.

Add it to a training plan Talk to our team Check your team’s level free

Advanced React & Frontend Architecture

What this course covers.

DEV-213 in the role journeys.

Full-Stack Developer

Frontend Engineer

Roles this course serves

This course is authored to band B4.

Other Development courses at this level.

Advanced Java: Concurrency, JVM & Performance

Java Microservices with Spring Cloud

Software Architecture & Design Patterns

Node.js Backend Engineering at Scale

Mobile Release Engineering & Store Operations

Mobile App Testing & Device Strategy

Run DEV-213 for your team.