
Candidate should have 6-9 years of experience in IoT embedded systems. He/ She should be
passionate, tech savvy, academically sound, have interest in embedded devices and
technologies.
Experience:
• Exposure to Microcontroller/Microprocessor Architecture /Family e.g. ARM Cortex,
Microchip, Xtensa ESP32, TI CC32XX, STM32
• Knowledge of Bare metal and any RTOS (Free RTOS, uC OS, EmbOSs, VxWorks, QNX)
• Knowledge of Microcontroller peripherals and low level drivers e.g. ADC, DAC, I2C, SPI,
UART, CAN, RS485, DMA, Ethernet, Display
• Knowledge of networking concepts like OSI layers, embedded TCP/IP stacks and common
IP protocols
• Knowledge of RF protocols WIFI, Bluetooth/BLE, IoT Cellular
• Knowledge of IoT communication protocols MQTT, COAP, AMQP
• Knowledge of Build toolchains and framework such as IAR, GCC, Keil, Mplab
• DFMA and DFMEA, Design release process
• Coding standards, guidelines and compliance tools
• Version control and repositories using git tools
• Software quality assurance and automated testing tools Experience / Skills Embedded software design cycle
• Documenting Software Design (flow charts, state diagram, logic design, analysis, implementation, debugging and testing etc)
• Good hands-on programming in Embedded C, C++.
• Programming in scripting languages such as batch, shell, python is a plus.
• Experience with AWS/Google cloud for device connectivity. Exposure to IoT cloud services. e.g. AWS IoT
• Software and Hardware integration testing and troubleshooting
• Protocol debugging using protocol analyzer.
• Understanding of Schematic/ Hardware design around microcontrollers like ST, TI, Atmel, Microchip, ARM core

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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.
Python Embedded Engineer
Location: Chennai
Experience : 3+ years
Budget : 1.2 LPM
We are looking for
Python Engineer who has experience in embedded system is must. Please look for the candidates who are trustworthy and good in communication.
We are looking for a skilled Python Embedded Engineer with 3+ years of experience and exposure to embedded systems.
The ideal candidate will work closely with cross-functional teams to design, develop, and optimize software solutions that interact with hardware and embedded platforms.
Key Responsibilities
Design, develop, and maintain robust Python-based applications and tools.
Work on embedded system software development and integration.
Collaborate with hardware, firmware, and system teams for end-to-end solution development.
Optimize software performance for embedded environments.
Debug, troubleshoot, and resolve system-level issues.
Participate in code reviews and ensure adherence to coding standards.
Contribute to testing, validation, and product release activities.
Required Skills & Qualifications
3+ years of professional experience in Python development.
Strong understanding of software development fundamentals.
Experience or exposure to embedded systems is preferred.
Knowledge of hardware-software interaction and communication protocols.
Familiarity with Git or other version control systems.
Good analytical and problem-solving skills.
Strong communication and teamwork abilities.
Good to Have
Experience with C/C++.
Knowledge of RTOS or Linux-based embedded systems.
Experience with microcontrollers, sensors, or device drivers.
Exposure to CI/CD and automated testing frameworks.
Job Description
Are you passionate about making a difference in people's lives through groundbreaking products and services ? Look no further! Protectol Health is a pioneering pharma-tech company with a holistic approach that spans conventional pharmaceuticals, nutraceuticals, nutrients, and business safety. Our dedication to the value of "Life matters" is not just a slogan – it's ingrained in every facet of our work culture and offerings.
With dedicated divisions in Pharma, Technology, Nutraceuticals, Nutriments, and Business Safety, we drive impactful research and development activities that redefine industries and touch lives. Our operational footprint extends across the GCC countries and India, allowing us to reach and transform communities on a grand scale.
If you're enthusiastic about creating a positive impact and wish to be a part of an organization that values and prioritizes lives, Protectol Health welcomes you. Join us in our mission to shape a healthier present and future. Your expertise and passion will find a meaningful home here.
Roles and Responsibilities
As an Embedded Firmware Engineer, you will be responsible for:
● Leading the firmware development for our product line of safety and medical devices.
● Designing, developing, testing, and maintaining embedded firmware.
● Collaborating with cross-functional teams to define software requirements, specifications, and architectures based on product requirements and industry standards.
● Implementing firmware solutions that comply with ATEX certification, IEC 61508, and Functional Safety (SIL standards) for devices used in hazardous locations.
● Conducting thorough testing and validation of firmware to ensure reliability, accuracy, and compliance with safety standards.
● Optimizing firmware for power efficiency and performance to meet the life of portable and battery-powered devices.
● Implement firmware algorithms for sensor calibration, data processing, and user interface interactions.
● Assisting in hardware-software integration, debugging, and troubleshooting to ensure seamless functionality of the devices.
● Collaborating with Quality Assurance and Product Validation teams to ensure the highest quality of firmware deliverables.
● Participating in code reviews and providing constructive feedback to improve code quality and maintainability.
● Keeping abreast of emerging technologies, industry trends, and advancements in embedded systems for continuous improvement and innovation.
Skills and Qualifications:
● Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or related field.
● 3+ years of experience in embedded firmware development for portable and wireless gas detectors and docking stations.
● Proficiency in C/C++ programming languages for embedded systems.
● Hands-on experience with a complete product development cycle is an add-on.
● Experience with STM32/STM8/ MSP430 or any other low-power microcontrollers for the development of low-powered devices.
● Experience in reading and optimizing analog data in various types of ADCs.
● Understanding of ATEX certification requirements and compliance.
● Understanding and practical experience with Functional Safety standards (SIL2/3 standards) in the development of safety-critical systems is an add-on.
● Experience with coding standards. (eg: Misra-C) Familiarity with System architectures and communication protocols like I2C, UART, SPI, etc. Knowledge of sleep modes and low-power optimization techniques for battery-operated devices.
● Experience in developing and using custom segment LCDs (TN, STN, etc.) used in battery-powered ultra-low power devices.
● Experience with software development tools, version control systems, and bug-tracking systems. Strong analytical and problem-solving skills with attention to detail.
● Excellent communication and teamwork skills.
● Advantages for individuals who thrive in a startup setting.
Work Culture
At Protectol Health, we prioritize our diverse and talented team. We offer flexible work arrangements and resources for well-being to support our employees' personal and professional growth. By putting people first, we attract and retain top talent and drive innovation toward our mission of improving health and well-being
● 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
- Strong C/C++ programming hands on experience
- Should have work experience on firmware development with strong Linux internals.
- Very good development, design and debugging experience on embedded firmware.
- Added advantage to have experience on Systems management/Out of Band/BMC domain experience
- Good to have automation experience using Python or shell scripting
- Excellent communication and problem solving skills
- Experience on tools like JIRA, Yocto, Visual studio, etc.
- 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
o Acceptance criteria: Shall have working experience in creating architectures for at least
4 projects.
Shall be strong in Object-Oriented Design and Thinking.
Shall be strong in documenting software architecture and communicating the same using UML.
Shall be strong in decomposing larger system into smaller units with clear implementation
dependencies marked for planning.
Shall be strong in effort estimation techniques.
Shall possess strong Problem Solving and Analytical Skills.
Shall be strong in C or C++ programing language experience.
Shall possess good understanding of either Linux or QNX or Android Operating Systems
Shall have a strong experience in developing software using in POSIX APIs.
Shall have a strong understanding on Networking, socket programming and working experience
in at least one of the IPC Frameworks like DBUS, SOME/IP, Binders etc.
Working experience with test framework and automation projects such as Robot Framework.
Knowledge on various software licenses and their compatibilities.
Shall posses strong knowledge in bootloaders, system startup, power management, persistency
management, health management and diagnostics framework for automotive systems.
Shall have a good knowledge on Functional Safety.
Shall have a good understanding hardware and processor internals.
Nice to haves:
Knowledge or working experience in AUTOSAR and / or Adaptive Autosar.
Understanding of GNU/Linux and its device driver framework.
Knowledge in “Secure Programming Techniques” is a plus.
Understanding in ARM Trusted Frameworks, Bootloaders & Virtualization Solutions is a plus.
Involvement in open-source projects in the past is a plus.
Knowledge in Package management and installers.

Role As part of the role, the Developers / Senior Developers will be responsible for Design, Coding and Integration while meeting the quality targets set for the project. The Tech Leads will be additionally responsible for Estimation, Architecture, Design, Technical Reviews, Customer Interaction, Building and Mentoring a talented team of Engineers
Knowledge & Skills
- Technical Experience on Physical Layer of 3GPP LTE Experience on DSP Development\
- Proficient in C
- Good understanding of Wireless Communications
- Experience on MAC-PHY interface
- Behavioral Interpersonal skills & Ability to work in team
- Good Communication Skills Good Analytical Skills
- Customer Orientation Job Title LTE Developer with DSP Physical Layer(Engineer/Senior Engineer)








