Every role, every industry. Written together.
Zaigang lays out salary by company size, ability models and industry ecosystems. Discuss, propose edits, simulate the job, then share what you learned. Every entry records how many people have read it.
8 industry entries · with ecosystem
40 industry micro-notes
Roles
POSITION / 8 ENTRIESEach entry covers duties, skills, salary by company size, ability model, growth path, interview questions, insider notes and FAQ — plus community discussion and edit proposals.
Frontend Engineer
Turn product logic into interfaces people can see and use
Backend Engineer
Hold up every visible feature from the invisible side
Product Manager
Decide what to build — and what not to
Data Analyst
Answer what actually happened, with data
See all roles with full detail
Choosing a role is not choosing a title. It is choosing a set of daily tasks, skills to keep building, and a path you can actually walk.ISSUE 03 · Zaigang
Industries
INDUSTRY / 8 ENTRIESEach industry covers ecosystem, company-size distribution, role demand, trends, common roles and take-away micro-notes.
Internet & Software
Software products and online services, defined by fa…
Artificial Intelligence
Model capability, data assets and inference cost, sp…
Financial Technology
Where technology meets regulated finance; correctnes…
E-Commerce
Goods, traffic, checkout and fulfilment, with long c…
See all industries and micro-notes
Glossary
GLOSSARY / 16 TERMSZaigang indexes role terms, industry terms and emerging job titles. Indexed entries link to detail pages; the community votes on what gets added next.
Most-read micro-notes
MOST READ / TOP 6An MVP is not half a product
It must fully validate one hypothesis. Cut scope, not the …
Invest in the eval set
Without a stable, realistic evaluation set, changing model…
Money paths must be idempotent
Use a unique business transaction ID plus a state machine …
Split GMV into three factors
Traffic × conversion × basket size — locate the factor bef…
Clinical pathway before product flow
Registration, consultation, prescription and follow-up hav…
Completion beats enrolment
Enrolment proves marketing worked; completion and homework…
How Zaigang works
METHODOLOGYPost +2 · edit proposal +10 · simulation +5 · share +5 · term vote +1 · invited visitor +5
Simplified Chinese is the full edition; English / 日本語 are compact editions. Translation contributions are welcome. About & data