How to get hired
Know which embedded job you are applying for
- Firmware / embedded software: C (and some C++) on microcontrollers, drivers for peripherals, RTOS tasks, bootloaders, power management. The largest group.
- Embedded Linux: board support packages, device drivers, Yocto builds, kernel debugging. Needs Linux internals.
- Automotive embedded: AUTOSAR stacks, CAN/LIN/Ethernet, diagnostics (UDS), MISRA C and functional safety (ISO 26262). Big at automotive suppliers and their engineering centres in Bengaluru, Pune, Chennai and Coimbatore.
- Hardware design: schematics and PCB layout in Altium or OrCAD, power supplies, signal integrity, EMC testing. Titles like "Hardware Design Engineer" and "PCB Design Engineer".
- IoT: connectivity (BLE, Wi-Fi, LoRa, cellular), MQTT, device-to-cloud, over-the-air updates. Often at startups and industrial automation companies.
Two kinds of employer
Product companies (chip makers, automotive suppliers, industrial and medical device makers) own the product and hire fewer freshers, mostly from campus. Engineering services companies do embedded work for clients worldwide and hire freshers in larger batches through campus and off-campus drives, often with a few months of training. A services role for two years, then a move to a product company, is a common path. Watch for training bonds in services offers and read them before signing.
The portfolio that gets you shortlisted
Build one project end to end on an STM32, ESP32, or similar board, not just an Arduino sketch:
- Write a driver for a sensor over I2C or SPI yourself, using the datasheet, without a library
- Use interrupts and a timer, and run two or three tasks under FreeRTOS or Zephyr
- Send data somewhere: UART to a PC, BLE to a phone, or MQTT to a cloud dashboard
- Put the code on GitHub with a README, a photo of the setup and a short note on one bug you found with a logic analyser or oscilloscope
That last line is what interviewers ask about.
What interviews test
Embedded interviews go deep on C and on hardware awareness:
- Pointers, structures, bit manipulation (set, clear, toggle a bit in a register), volatile and const, memory layout (stack, heap, .data, .bss)
- Interrupts: what happens on an interrupt, what you must not do inside an ISR, priority and latency
- Communication protocols: UART vs I2C vs SPI vs CAN, with timing diagrams
- RTOS: tasks, semaphores vs mutexes, priority inversion
- Debugging: how you would find a hard fault, a stack overflow, or why a sensor reading is noisy Many companies give a written C test or a live coding round with small problems such as a ring buffer or a debounce routine. Automotive interviews add CAN frames and AUTOSAR layers.
Learning without paying a fortune
Paid embedded courses range widely in fee and quality. Before paying, ask for the list of companies that hired their last batch and talk to two past students. A development board, datasheets and open-source RTOS documentation can take you most of the way. If your college is part of the government's Chips to Startup programme, use the labs and tools it provides.
What the work is like
Mostly lab and desk work with regular hours, crunch before releases, and occasional travel to a customer site or test track. Bugs can take days to find, and you will spend time with an oscilloscope probe in one hand. Growth runs Engineer, Senior Engineer, Lead, then Architect or Technical Manager; automotive and safety-critical skills and Embedded Linux tend to pay the most.