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💼 Mercedes-Benz Interview Experience

Position: Senior Embedded Software Engineer
Domain: Embedded C++, Linux, CMake, Automotive Software Systems
Mode: Online Technical + Managerial Interview

📌 Job Role Highlights

The role at Mercedes-Benz primarily focused on:

  • C++ development in embedded environments
  • Working with Linux-based systems
  • CMake for build automation
  • Debugging using GDB and analyzing memory issues
  • Software architecture understanding, especially in automotive domain
  • Static code analysis, testing methodologies (Unit, Integration)

🧠 Key Topics Discussed

✅ C++ Programming

  • Reversing a 3-digit number logic
  • Writing a function to find the greatest of 3 numbers
  • Pointer usage and memory management
  • Function call stack and recursion explanation
  • Differences between stack and heap

✅ Linux & CMake

  • Linux terminal commands and file structure
  • Writing a basic CMakeLists.txt file
  • Compiling and linking process in Linux
  • Debugging tools on Linux like gdb, valgrind

✅ Embedded Systems

  • Bitwise operations and their application in microcontrollers
  • Memory-mapped I/O access
  • Handling peripheral registers
  • Interrupt handling basics

🧪 Practical/Hands-On Rounds

  • Code Simulation: Asked to code in an online compiler, implementing reverse logic and basic pointer operations.
  • Debugging Session: Interviewer described a memory leak scenario and asked for debugging steps.
  • CMake Task: Write a simple CMakeLists for a multi-file C++ project.

⬅️ Back

💡 Interview Tips for Mercedes-Benz

  • Be strong in basic C++ concepts and memory handling.
  • Practice writing and debugging code on Linux.
  • Understand basic embedded systems and use cases for bitwise operations.
  • Be ready to explain your real-time project contributions.
  • Prepare 1–2 custom examples of logic building with edge case handling.
  • Memory Allocation in C++
  • Pointers vs References
  • Stack vs Heap
  • CMake basics and advanced flags
  • Linux command-line utilities
  • Interrupts and Bit-level register manipulations
  • Class design, constructors, destructors
  • Static and dynamic libraries

🔚 Final Notes

Mercedes-Benz interviews focus on problem-solving skills, embedded understanding, and practical debugging abilities. Ensure clarity in basics and demonstrate how you handle real-world automotive software challenges.