Embedded Software Developer

WE ARE HIRING
Firmware Engineer
R&D Department | Microlit
Job Role
Department
Location
Experience
Firmware Engineer
R&D
Lucknow
2+ Years
About the Role
Microlit is looking for a hands-on Firmware Engineer to join its R&D Department in Lucknow. The ideal candidate will have at
least 2 years of professional embedded-systems experience and a proven record of developing 23 production-grade,
structured firmware projects. This role is for an engineer who can take firmware from architecture and low-level drivers through
debugging, validation and production deployment.
The candidate must be strong in C/C++, bare-metal programming, STM32 and ESP32, with a solid understanding of memory
management, RTOS/OS concepts and Linux. Exposure to robotics calculations and computer vision is also important for our
R&D work.
Key Responsibilities
Design, develop and maintain reliable, modular and production-grade embedded firmware.
Develop low-level drivers and application firmware for STM32 and ESP32 platforms.
¢ Write and debug bare-metal firmware and work directly with MCU registers and peripherals.
¢ Develop RTOS-based applications and implement safe task, interrupt and inter-task communication models.
¢ Integrate sensors, actuators, communication interfaces and other hardware into embedded products.
¢ Debug firmware using JTAG/SWD, ST-LINK/J-Link, oscilloscopes, logic analyzers and other tools.
¢ Analyze and optimize CPU, RAM and Flash usage; identify memory corruption, stack/heap and timing issues.
¢ Collaborate with hardware, mechanical, software and R&D teams to deliver complete product solutions.
¢ Implement diagnostics, fault handling, watchdogs, configuration management and firmware update mechanisms.
¢ Document architecture, interfaces, design decisions, test procedures and production releases.
What Makes This Role Different
We are looking for a product-building engineer not someone limited to Arduino-level prototypes or
academic projects. You should be able to explain the architecture, trade-offs, difficult bugs and production
lessons behind firmware you have actually built.
Microlit | R&D Department
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Required Technical Skills

1. Embedded C/C++ & Bare Metal
   ¢ Strong C/C++ programming; pointers, structures,
   function pointers and bit manipulation.
2. Robotics & Mathematics
   ¢ Coordinate systems, vectors, matrices, trigonometry and
   transformation matrices.
   ¢ Bare-metal development, startup code, interrupts,
   registers, timers, DMA and peripheral drivers.
   ¢ Forward/inverse kinematics, position and motion
   calculations.
   ¢ Production-oriented modular architecture, state
   machines and error handling.
   ¢ Practical understanding of motors, encoders, IMUs and
   actuators.
3. STM32 & ESP32 Mandatory
   ¢ Hands-on STM32 experience: HAL/LL, register-level
   programming, GPIO, ADC, PWM, UART, SPI, I2C,
   CAN, USB/Ethernet.
4. Computer Vision
   ¢ OpenCV, image processing, camera calibration and
   image/real-world coordinate relationships.
   ¢ Object detection/tracking, perspective transformation
   and basic vision mathematics.
   ¢ ESP32 with ESP-IDF and/or professional embedded
   framework; FreeRTOS, Wi-Fi/BLE and OTA.
   ¢ YOLO, TensorFlow Lite or ONNX experience is an
   advantage.
   ¢ JTAG/SWD, ST-LINK/J-Link and low-level debugging.
5. Memory Management
   ¢ Flash, SRAM, ROM, stack, heap, static/dynamic memory
6. Communication Protocols
   ¢ UART, SPI, I2C, CAN, RS485 and Modbus.
   and fragmentation.
   ¢ TCP/IP, UDP, MQTT; Wi-Fi and Bluetooth/BLE are
   advantageous.
   ¢ Memory alignment, linker scripts and .text/.data/.bss
   sections.
   ¢ Memory corruption, leaks, stack overflow and DMA-safe
   buffer handling.
7. Development & Quality
   ¢ Git/GitHub/GitLab, code reviews and structured
   branching.
   ¢ Oscilloscope, logic analyzer, multimeter and serial
   analysis.
8. OS / RTOS / Linux
   ¢ FreeRTOS or equivalent: tasks, scheduling, priorities,
   mutexes, semaphores, queues and race conditions.
   ¢ Unit/integration testing, static analysis, coding standards
   and production documentation.
   ¢ Linux command line, processes/threads, shell,
   networking, SSH, GDB, GCC, Make/CMake and
   cross-compilation.
   Preferred / Added Advantage
   ROS/ROS2 ¢ Embedded Linux ¢ Raspberry Pi / NVIDIA Jetson ¢ BLDC/FOC and motor control ¢ LiDAR / IMU / encoder integration
   ¢ CAN-FD ¢ Ethernet ¢ Bootloader / OTA ¢ Edge AI ¢ MISRA-C/C++ ¢ Hardware-in-the-loop testing ¢ CI/CD for embedded systems
   Candidate Profile
   Experience
   Education
   2+ years of professional embedded/firmware development.
   B.Tech / B.E. / M.Tech in Electronics, Electrical,
   Instrumentation, Computer Engineering, Robotics or a related
   discipline preferred.
   Production Track Record
   At least 23 structured, production-grade firmware projects
   with clear personal contribution and understanding of
   architecture, debugging and deployment.
   Work Style
   Hands-on, analytical, hardware-friendly, strong debugging
   mindset and comfortable working across firmware, electronics
   and robotics.
   Interview Focus
   Candidates should be prepared to walk through 23 real projects and explain the firmware architecture, MCU selection, memory
   map, communication protocols, RTOS usage, debugging approach, production issues, testing strategy and the specific problems
   they personally solved. Practical assessment may include C/C++, bare-metal STM32/ESP32, debugging, RTOS, memory and
   robotics/vision problems.
   Microlit | R&D Department
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Join Microlit's R&D Team
If you enjoy building reliable embedded products, solving difficult hardwaresoftware problems and turning
ideas into production systems, we would like to hear from you.
Job Location: Lucknow | Department: R&D | Experience: 2+ Years
Microlit | R&D Department
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