Embedded Software Developer

Here’s a comprehensive job description for an Embedded Software Developer role that specifically includes RTOS (Real-Time Operating System) expertise and OpenCPU (embedded communications/IoT module) experience — ideal for job postings, résumés, or role definitions.

📌 Job Title: Embedded Software Developer (RTOS + OpenCPU)🧠 Role SummaryYou will design, develop, test, and maintain embedded software and firmware for resource-constrained devices — often operating in real-time systems. This role requires strong skills in RTOS concepts, low-level programming (C/C++), hardware interfacing, and OpenCPU-style IoT module development for embedded connectivity. (Himalayas)

✅ Key ResponsibilitiesEmbedded Software & RTOS Development

• Design, implement, and optimize software for embedded systems, ensuring deterministic behavior and real-time performance on RTOS (e.g., FreeRTOS, Zephyr, embOS). (Himalayas)
• Develop and maintain firmware components including drivers, APIs, scheduling, inter-task communication, and synchronization primitives. (VelvetJobs)
• Conduct thorough system analysis, debugging, testing (unit/integration/field), and performance profiling. (Himalayas)

Hardware Integration

• Work closely with hardware engineers to interface microcontrollers, sensors, communication modules, and peripherals (UART, SPI, I2C, GPIO, ADC). (Internshala)
• Support board bring-up, hardware validation, and cross-platform integration testing. (Internshala)

OpenCPU & Connectivity Integration

• Design applications leveraging OpenCPU-capable communication modules (e.g., GSM/3G/4G/5G IoT modems) where the CPU logic runs directly on the module’s processor, reducing external MCU dependencies. (ResearchGate)
• Implement communication stacks, AT command interfaces, TCP/UDP/HTTP services, firmware upgrades, and remote management on OpenCPU platforms. (ResearchGate)

Documentation & Collaboration

• Create and maintain detailed software design specs, test cases, API documentation, and release notes. (Himalayas)
• Participate in code reviews, design discussions, and cross-team technical planning sessions. (VelvetJobs)

🧩 Required Skills & QualificationsCore Technical Skills

• Strong proficiency in C and C++ for embedded systems. (Himalayas)
• Proven experience with real-time operating systems (RTOS) — tasks/threads, scheduling, synchronization, timers. (Interview Questions)
• Experience with microcontroller platforms (e.g., ARM Cortex-M/A, ESP32). (Himalayas)
• Hands-on experience with OpenCPU-based modules for IoT/communications (developing application logic on the module itself). (ResearchGate)
• Low-level hardware interfacing (GPIO, UART, SPI, I2C, ADC) and embedded debugging. (Internshala)

Tools & Processes

• Familiarity with IDEs and toolchains like GCC, Keil, IAR, Eclipse, and version control (Git). (Himalayas)
• Experience using hardware debugging tools (JTAG/SWD, oscilloscopes, logic analyzers). (Himalayas)
• Knowledge of embedded development processes (SDLC, Agile/Scrum). (VelvetJobs)
• 🎓 Preferred QualificationsBachelor’s or Master’s degree in Electronics, Computer Engineering, Embedded Systems, or related field. (LinkedIn Business Solutions)
• Experience with communication protocols (CAN, Ethernet, BLE, Wi-Fi). (Weekday)
• Familiarity with IoT cloud platforms, MQTT, TLS/SSL, OTA updates.
• Prior work on power-optimized and memory-constrained embedded firmware.
• 🛠️ Typical DeliverablesReal-time firmware modules integrated with hardware and communication stacks.
• RTOS task scheduler implementations with priority schemes and inter-task messaging.
• OpenCPU modem logic handling sensor interfacing, data transport, and remote firmware updates.
• Test plans, automated test scripts, and performance benchmarks.

📈 Experience Levels🎓 Entry / Mid:

• 2–5+ years embedded/RTOS experience with some exposure to IoT modules. (LinkedIn Business Solutions)

🌐 Senior:

• 5+ years of embedded systems design and architecture experience, owning project features from concept to deployment. (Himalayas)

If you want, I can tailor this job description for a specific industry (e.g., automotive, IoT, telecom) or for a particular seniority level (entry/senior/lead). Just let me know!