How the industry is organised. Aerospace works in layers, often called tiers:

Two kinds of buyer. Airlines buy commercial aircraft. Governments and air forces buy military aircraft and defence systems. Defence is tightly controlled: countries restrict who may see a weapon's designs. So defence engineering is harder to move abroad than commercial work.
Why it moves slowly. Every new aircraft, and every change to one, must be certified by aviation regulators before it may fly. The software on board must meet strict safety standards. A new airliner can take ten years to develop, and is then built and flown for decades.
Where India fits. The world's aircraft and engine makers run some of their largest engineering centres outside their home countries in Bengaluru. They work on design, software and data. India is also building a small aerospace industry of its own, from defence electronics to electric air taxis.
Every company named here has posted software engineering jobs in India. Famous companies that don't actively hire software engineers in India are left out.
This Market Segment has two sub-segments:
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Two more sections are on this page: The airframers and the engines and The cabin, the electronics and the defence systems. Sign in to read them here, in full.
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- The cabin, the electronics and the defence systems
The aircraft makers
The engine makers
The system suppliers
A new kind of aircraft
The cabin
Defence electronics and systems
Two companies covered mainly in other Market Segments supply the aircraft makers:
New aircraft and engines are designed, tested and certified more and more in simulation. Their software is updated throughout their lives. Their data is used to predict when each part will wear out. The industry calls this linked record, from design to maintenance, the digital thread. India's aerospace centres long did design and documentation work, and are now moving to the digital thread. India's own programmes, from defence electronics to air taxis, draw on the same engineers.
Who these companies hire, and for what, is on What aerospace, defence and space companies hire for.