11 parts · 13 chapters

The Deriv Round

This is the one course in Learna written for a single purpose: the Staff/Principal Frontend Engineer process at Deriv. It uses the job description, the notes from the recruiter calls, and everything in the other 23 courses. Each part maps to what a round will test, gives a structure for answering, works an example in full, and shows where the evidence comes from: real work, described accurately.

Seven parts. The role read line by line, with what each line is really testing. The architecture deep-dive drawn live: the state-machine refactor and the platform systems, rehearsed for screen sharing. Frontend system design on Deriv surfaces (cashier, KYC, trading, and the high-traffic onboarding question from round one, answered again properly). Money, identity and trust questions. The AI-workflow questions and the take-home challenge, with evidence. The design pushback drill. And the questions to ask and how to close.

Start reading · Part 0 Present as slides
the role · the architecture deep-dive · system design on a Deriv surface · money and trust · AI workflow · design pushback · questions and the closepersonal preparation · Staff/Principal Frontend Engineer, Deriv (Cyberjaya)
the roleEvery line of the JD, what it tests, and the evidence that answers it.
drawn liveThe state-machine refactor and platform architecture, rehearsed as screen-shared diagrams.
system designCashier, KYC, trading and the onboarding question, with the incremental method.
money and trustEdge cases, degraded states and failure recovery questions, answered from the Trust course.
AI workflowReal answers with receipts, the take-home challenge, and the self-awareness assessment.
pushback and the closeUnsafe, misleading, inaccessible, complex: the drill; then questions and the close.
00

The Role, Read Closely

The JD, line by line
1 ch · ~12 min01

The Architecture Deep-Dive, Drawn Live

The state-machine refactor, drawn · The platform picture, drawn
2 ch · ~15 min02

Frontend System Design on a Deriv Surface

The onboarding question, answered properly · Cashier, KYC and trading, incrementally
2 ch · ~18 min03

Money, Identity and Trust Questions

Edge cases, degraded states and failure recovery
1 ch · ~12 min04

The AI-Workflow Questions

Real answers with evidence
1 ch · ~12 min05

Design Pushback Drill

Unsafe, misleading, inaccessible, unnecessarily complex
1 ch · ~10 min06

Your Questions, and the Close

Your questions for the Head of Frontend, and the close
1 ch · ~8 min07

The Story Bank

Eight stories, one shape
1 ch · ~10 min08

Deriv's Product and API

Products, contracts and the WebSocket API
1 ch · ~12 min09

A Mock Take-Home

Practise on a plausible challenge
1 ch · ~10 min10

Hybrid, WebView and Real Devices

The bridge, the gaps and the cheap phone
1 ch · ~10 min
Built from all 23 other coursesEvery answer here links back to where the depth lives: Trust for money flows, FSD for the design method, AI-native for the workflow, Design for pushback, SRE and Disciplines for metrics. Read this course last and use it as the index into the rest.