Lakshya

Software Engineering

Backend Engineer

The largest named specialism. System design carries the loop.

Full archetype card in progress

This role is mapped and its data is live — the figures on the field page come from parsing real postings. The full card — a decoded posting, the interview loop, a worked transcript of the decisive round, a three-week plan and pay bands — is still being written.

The themes below are complete, and are the more useful half.

The book for this field

Software Engineering

What postings now ask for, system design at the level actually assessed, product sense for engineers, code and review, debugging and the coding round, what changes from mid to staff, the loop round by round, and choosing a track.

CHAPTER 2System design, at the level actually askedThe round that decides most senior loops. Not a memorised architecture — a sequence of defensible trade-offs.READ THE CHAPTER →CHAPTER 4Code, review and the 9%Testing appears in 9% of postings because it is assumed. Here is what is actually being assessed.READ THE CHAPTER →CHAPTER 6What actually changes from mid to senior to staffThe most common promotion failure is doing the previous level extremely well.READ THE CHAPTER →

All 8 chapters in Software Engineering →

Cross-cutting

Skills every archetype tests

These are shared across every field on this site — the same question asked in different vocabulary — so preparation here compounds rather than being spent once. The book above is specific to your field.

Design under constraintThe decisive round for SRE, AI Platform, Infrastructure — and the reason strong engineers fail it.READ THE CHAPTER →Failure and incident narrativeEvery archetype asks for this story. The outage is the setting; the decisions are the content.READ THE CHAPTER →Measuring what resists measurementTested in every field on this site under a different name — evals, SLOs, DORA, ablations. Named in 59% of AI and 42% of platform postings, and almost nobody studies it deliberately.READ THE CHAPTER →

Practice questions across all themes →  ·  Back to Software Engineering →