Embedded Linux Software Developer

Job Title: Embedded Firmware Engineer (RF Focus)

Location: Gurgaon, Haryana (On -site)

Employment Type: Full-Time

Experience: 3-5 years

We’re hiring an Embedded Firmware Engineer (3–5 yrs) with strong experience in Sub-GHz RF, LoRa/LoRaWAN, and IoT systems. The role focuses on firmware development, RF communication, and secure telemetry.

About Aaizel Tech

Aaizel Tech is a pioneering tech startup at the intersection of cybersecurity, AI, geospatial solutions, and more. We drive innovation by delivering transformative technology solutions across industries. As part of our dynamic team, you'll gain hands-on experience and learn from experts who are dedicated to pushing the boundaries of what's possible.

Responsibilities

• Develop firmware for STM32 (WL/H/L/F series)

• Design & implement Sub-GHz RF (403/433/868/915 MHz) systems

• Work on LoRa PHY/MAC & LoRaWAN stack (OTAA/ABP, uplink/downlink)

• Perform RF testing & debugging (RSSI, SNR, range testing, SDR/spectrum tools)

• Implement secure communication (AES-128/256, CRC/SHA)

• Develop drivers: UART, SPI, I2C, ADC, DMA

• Work with FreeRTOS (tasks, queues, ISRs, low power)

• Build communication stacks: RS485/Modbus, RS232, MQTT, TCP/IP, UDP

• Implement bootloader & OTA updates

• Debug using SWD/JTAG, logic analyzer, DSO

• Optimize for performance, power, and RF reliability

Requirements

• 3–5 years in embedded firmware + RF systems

• Strong in Embedded C, STM32CubeIDE, HAL/LL

• Hands-on with LoRa/LoRaWAN & Sub-GHz communication

• Understanding of RF fundamentals (link budget, interference, antennas)

• Experience in secure communication (AES)

• Good knowledge of FreeRTOS & industrial protocols (RS485/Modbus)

• Strong debugging skills (firmware + RF)

• Basic hardware/RF PCB understanding

Good to Have

• Experience with ChirpStack / TTN

• Knowledge of FSK/GFSK

• RF certification exposure (CE/FCC/ETSI)

How to Apply

• Please submit your resume, portfolio, and a cover letter outlining your relevant experience and how you can contribute to Aaizel Tech’s success.

MANDATORY CRITERIA:

• Education: B.Tech / M.Tech in ECE / CSE / IT
• Experience: 10–12 years in hardware board design, system hardware engineering, and full product deployment cycles
• Proven expertise in digital, analog, and power electronic circuit analysis & design
• Strong hands-on experience designing boards with SoCs, FPGAs, CPLDs, and MPSoC architectures
• Deep understanding of signal integrity, EMI/EMC, and high-speed design considerations
• Must have successfully completed at least two hardware product development cycles from high-level design to final deployment
• Ability to independently handle schematic design, design analysis (DC drop, SI), and cross-team design reviews
• Experience in sourcing & procurement of electronic components, PCBs, and mechanical parts for embedded/IoT/industrial hardware
• Strong experience in board bring-up, debugging, issue investigation, and cross-functional triage with firmware/software teams
• Expertise in hardware validation, test planning, test execution, equipment selection, debugging, and report preparation
• Proficiency in Cadence Allegro or Altium EDA tools (mandatory)
• Experience coordinating with layout, mechanical, SI, EMC, manufacturing, and supply chain teams
• Strong understanding of manufacturing services, production pricing models, supply chain, and logistics for electronics/electromechanical components

DESCRIPTION:

COMPANY OVERVIEW:

The company is a semiconductor and embedded system design company with a focus on Embedded, Turnkey ASICs, Mixed Signal IP, Semiconductor & Product Engineering and IoT solutions catering to Aerospace & Defence, Consumer Electronics, Automotive, Medical and Networking & Telecommunications.

REQUIRED SKILLS:

• Extensive experience in hardware board designs and towards multiple product field deployment cycles.
• Strong foundation and expertise in analyzing digital, Analog and power electronic circuits.
• Proficient with SoC, FPGAs, CPLD and MPSOC architecture-based board designs.
• Knowledgeable in signal integrity, EMI/EMC concepts for digital and power electronics.
• Completed at least two project from high-level design to final product level deployment.
• Capable of independently managing product’s schematic, design analysis DC Drop, Signal Integrity, and coordinating reviews with peer of layout, mechanical, SI, and EMC teams.
• Sourcing and procurement of electronic components, PCBs, and mechanical parts for cutting-edge IoT, embedded, and industrial product development.
• Experienced in board bring-up, issue investigation, and triage in collaboration with firmware and software teams.
• Skilled in preparing hardware design documentation, validation test planning, identifying necessary test equipment, test development, execution, debugging, and report preparation.
• Effective communication and interpersonal skills for collaborative work with cross-functional teams, including post-silicon bench validation, BIOS, and driver development/QA.
• Hands-on experience with Cadence Allegro/Altium EDA tools is essential.
• Familiarity with programming and scripting languages like Python and Perl, and experience in test automation is advantageous.
• Should have excellent exposure with coordination of Manufacturing Services, pricing model for production value supply chain & Logistics in electronics and electromechanical components domain.

 Internship Opportunity – Embedded Systems & IoT

Join our hands-on internship program designed for engineering students passionate about core tech. You'll work on real-time projects involving microcontrollers, sensors, RTOS, circuit design, and IoT protocols.

Gain exposure to AI-integrated embedded applications and build a strong project portfolio with mentorship and placement support.

Location: Bangalore (Hybrid/On-site)

Duration: 2–3 months

Eligibility: Final-year students and pre final year (ECE/EEE/CSE/Mechatronics)

#EmbeddedSystems #IoTInternship #EngineeringInternship #CoreTechCareers #Microcontrollers #RTOS #PCBDesign #IoTProjects #KnowxInnovations #AIoT #TechInternship #SkillDevelopment #HandsOnLearning #BangaloreInternship #StudentInternship

Embedos is looking for super heroes, who can help us succeed in our endeavour of becoming a beacon for providing problem solving Industrial IoT Solutions.

Location: MUMBAI

VACANCY: 3 - 4

Embedos makes Controllers –Interface devices and cloud based Software solutions for Remote Monitoring and Control, Industry 4.0 Applications.

We are looking for Engineering super heroes, who have a flare and interest in Core hardware / firmware / embedded software/ Networking and web technologies.

We would want engineers who have wide interests and want to work on multiple specializations. Functions in the embedded domain

• Hardware design small signal /Tele communication/interface electronics/Digital /Latest Microprocessors STM , ESP ,interfaces , I2C, SPI / Peripherals / Schematics /PCB Routing

• Programming languages for embedded devices respective IDEs s, debugging systems

• RTOS, Real time programming concepts.

• Linux Kernel programming, peripheral drivers.

• Communication protocols like Modbus, CAN, OPC other industrial protocols.

• Open source software, documentation, versioning systems.

• Web technology, Web applications, Networking technology, Cloud Interfacing.

We invite you to come and join in our Core team to make this endeavour a success and share the rewards.

Embedos is looking for Super Heroes to work on cutting edge technology involving interfacing IoT enabled Firmware, cloud computing software, generating exciting user interfaces, developing API’s, designing web app architectures, deploying re - usable code and the works.

Roles and Responsibilities:

• Strong experience with programming microcontrollers like Arduino, ESP32, and ESP8266.
• Experience with Embedded C/C++.
• Experience with Raspberry Pi, Python, and OpenCV.
• Experience with Low power Devices would be preferred
• Knowledge about communication protocols (UART, I2C, etc.)
• Experience with Wi-Fi, LoRa, GSM, M2M, SImcom, and Quactel Modules.
• Experience with 3d modeling (preferred).
• Experience with 3d printers (preferred).
• Experience with Hardware design and knowledge of basic electronics.
• Experience with   Software will be preferred.ss

Detailed Job role (daily basis) done by the IOT developer.

·       Design hardware that meets the needs of the application.

·       Support for current hardware, testing, and bug-fixing.

·       Create, maintain, and document microcontroller code.

·       prototyping, testing, and soldering

·       Making 3D/CAD models for PCBs.

Responsibilities:

• Design and implement embedded software applications for IoT devices using C programming language.
• Develop and maintain firmware for Raspberry Pi-based systems, ensuring optimal performance and compatibility with various IoT sensors and peripherals.
• Collaborate with hardware engineers to define and document system requirements and specifications.
• Conduct thorough testing and debugging of embedded software to identify and resolve any issues or bugs.
• Optimize code and improve system performance to enhance the overall user experience.
• Stay updated with the latest industry trends and technologies in embedded systems and IoT development.
• Work closely with the product management team to translate customer requirements into technical specifications.
• Provide technical support and guidance to the team during the development and deployment phases.
• Participate in code reviews and contribute to the continuous improvement of software development processes.

Qualifications:

• Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related field.
• Strong proficiency in C programming language with a solid understanding of embedded systems.
• Experience developing software for Raspberry Pi or similar single-board computers.
• Knowledge of IoT protocols and technologies such as MQTT, CoAP, TCP/IP, and wireless communication (Wi-Fi, Bluetooth, etc.).
• Familiarity with various sensors, actuators, and electronic components commonly used in IoT devices.
• Solid understanding of software development methodologies and version control systems (e.g., Git).
• Strong problem-solving skills and the ability to debug complex issues in embedded systems.
• Excellent communication and teamwork skills to collaborate effectively with cross-functional teams.
• Prior experience in developing IoT applications or working on IoT projects is a plus.

    Requirement analysis

·         Acquisition support (Technical analysis)

·         Automotive ECU software development

·         Diagnostic (UDS) function development

·         Software testing

·         Technical collaboration with internal/external development parties

● Write Effective Codes In C++, Develop Software For Embedded Systems Based On STM32, NRF
● Support And Improve Existing Software
● Prepare Documentation For The Created Software. Qualifications
● Confident Knowledge Of C++ 17, Object-Oriented Programming, Embedded Software Development
● Proficiency With Microcontrollers Of The STM32 And / Or NRF Series
● Experience With RTOS
● Familiarity With Git, Linux
● Technical English
● Knowledge Of Python As An Advantage
● Any Experience With UAS \ UAV \ Drones is much appreciated

• Bachelors in Electronics & Communication or equivalent
• 6-10 yrs experience in embedded software development
• Hands-on embedded C skills (mandatory)
• Experience with any microcontrollers MCU (mandatory) – Renesas/ Infineon/ Cypress/ ST-Micro /TI / Microchip
• Experience with any of peripherals & communication protocols usage in application development (mandatory) – UART, I2C, SPI, I2S, CAN, USB, ADC, DAC, EEPROM, Flash memory
• Experience with any RTOS – FreeRTOS, Azure RTOS, ThreadX
• Experience with any networking &  connectivity modules (preferred & added advantage) – Ethernet, WiFi, BLE, MQTT, COAP
• Exposure to any IoT frameworks (desirable not mandatory) – IoTivity, AWS IoT, Azure IoT
• Experience with any device driver development, driver optimisation (desirable not mandatory)
• Good ability to read data sheets & technical manuals