DEV-214 Development

Node.js Backend Engineering at Scale

Take Node services from working to production-grade under load: event loop behaviour, streaming with backpressure, multi-core execution, pooled connections and caches, and clean shutdown. Learners diagnose a leaking and latency-spiking service from real evidence and harden it against the conditions that caused the incident.

B4Professional

6modules

42skill atoms

2role journeys

Curriculum

What this course covers.

6 modules, 42 named skill atoms. Expand any module to see them.

1Event Loop Under Load7 skill atoms

libuv phasesblocking the loop with sync cryptoevent loop lag metricsoffloading cpu-bound worktimers vs setimmediatehead-of-line blockingp99 latency attribution

2Streams & Backpressure7 skill atoms

readable and writable streamspipeline over pipehighwatermark tuningdrain eventsgzip transform streamsunbounded buffering growtherror propagation through pipelines

3Clustering & Worker Threads7 skill atoms

cluster moduleworker_threads for cpu workmessage passing and sharedarraybufferprocess-per-core sizingsticky sessions for websocketszero-downtime reloadsignal handling

4Connections, Pooling & Caching7 skill atoms

pool sizing for postgreskeep-alive agentsdns resolution pitfallsredis cache-asidestampede protection with locksttl and invalidation strategycircuit breakers on downstreams

5Production Hardening & Diagnosis7 skill atoms

graceful shutdown on sigtermheap snapshots and retained sizeclosure-held memory growthclinic and flamegraph profilingstructured logs with trace idshealth and readiness probesunhandled rejection policy

6AI Assistants in Backend Work7 skill atoms

generated code that blocks the event loopplausible but wrong pool sizing advicedeprecated node api suggestionsmissing backpressure in generated stream codereviewing generated error handlingsecurity defaults quietly omittedengineer accountable for production behaviour

Where it fits

DEV-214 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-213→DEV-214→CL-324

Backend Engineer

Professional stage

DEV-302→DEV-214→DEV-204

Roles this course serves

Backend 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-214 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

Node.js Backend Engineering at Scale

What this course covers.

DEV-214 in the role journeys.

Full-Stack Developer

Backend 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

Advanced React & Frontend Architecture

Mobile Release Engineering & Store Operations

Mobile App Testing & Device Strategy

Run DEV-214 for your team.