Firmware 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.

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

Requirements:

• Very good programming knowledge in C/C++
• Experience in Multi-threaded software development
• Understanding of operating systems concepts, system performance, and optimization
• Familiar with working in an Embedded Linux development environment.
• Excellent problem-solving/debugging skills, design, development, troubleshooting, and debugging
• Knowledge of embedded tools like emulators, linkers, makefiles, etc
• Experience in voice applications development, preferably on client/server platforms
• Knowledge of RTOS programming will be added advantage.
• Understanding of different processors. microcontrollers architectures.
• Familiarity with development tools such as GCC, GDB, Eclipse, GNU Make, etc

Lifespark Technologies is looking for individuals with a passion for impacting real lives through technology. Lifespark is one of the most promising startups in the Assistive Tech space in India, and has been honoured with several National and International awards. Our mission is to create seamless, persistent and affordable healthcare solutions. If you are someone who is driven to make a real impact in this world, we are your people.

Lifespark is currently building solutions for Parkinson’s Disease, and we are looking for an embedded software lead to join our growing team. You will be working directly with the founders on high impact problems in the Neurological Healthcare domain. You will be solving some of the most fundamental and exciting challenges in the industry and will have the ability to see your insights turned into real products every day

Responsibilities :

1. RTOS based multithreaded software development

2. Building future ready, scalable software architectures

3. Liasing with hardware team to decide project requirements

4. Realtime IoT functionality development on ESP32 platform

5. Integration of third party services for cloud based communications and computation

6. Maintaining and documenting software via git (GitLab)

7. Coordinating releases, setup and maintenance of CI/CD pipelines

8. Managing AWS based backend services, integration with AWS services such as S3,

Sagemaker

9. Firmware security, Flash encryption, Bootloader encryption, secure communications

10. Deep integration with hardware team - stress testing hardware

11. Development of device drivers

12. Software testing and maintenance

Recommended experience :

1. Good command over Linux

2. Familiarity with real time tasks and timing sensitive system design

3. Familiarity with BLE/Wifi/etc IoT communication protocols

4. Familiarity with major third party platforms for cloud and ML/AI integration

5. Testing actual physical outcomes of programmed solutions

6. Deep familiarity with ESP-IDF

Location : IIT Bombay, Mumbai

Working mechanism : In-person

Compensation range : 4-12 lpa + ESOPs

Responsibilities:

You will get a chance to create products from scratch. While you will get the advantage of the scale of the organization, you are expected to come up with creative solutions to challenging problems.

On a typical day, you'd work with highly skilled engineers to solve complex problems. This is an early-stage initiative. Your ability to translate business requirements, and develop and demonstrate quick prototypes or concepts with other technology teams will be of great value.

You will learn and work on a variety of languages such as C/C++, python, and Linux as well as work on BLE, MEMS, biometric sensors, and the latest wireless technologies.

Requirements:

6+ years of Embedded firmware development experience in C/C++

BLE/GPS/GSM/RTOS stack expertise

Hands-on experience with Lab equipment (VNA/RSA/MSO etc).

Testing environment setup using automation scripts and networking equipment, practices for the full software development life cycle, including coding standards, code reviews, source control management, continuous

Familiar with Wireless/IoT network protocols and standards.

Experience with microcontrollers, sensors, and serial communication.

Preferred experience with wearOS/TizenSuperior presentation and communication skills, both written and verbal

Bachelor/Masters's degree in electrical/electronic/communications engineering, information technology, physics, or a related field from

Tier 1 Tier 2 Engineering colleges only (IITs/NITs/IIITs/BITS etc. )

Result-oriented and ready to take ownership. Exhibit strong team

Key Responsibilities:

1.    Development, integration and testing of embedded software in the Embedded Linux RTOS

2.    Integrate Application based on Adaptive AUTOSAR Platform

3.    Contribute for Architecture, Detailed design, programming in C++ (11/14/17)

4.    Perform Unit, Integration Tests of developed Application

5.    Detail oriented systematic problem-solving approach in the embedded software.

6.    Debug embedded software on hardware platforms for issue identification and resolution

Minimum qualification criteria:

1.    Bachelor's degree in Electronics, Computer Science, Electrical Engineering, or related field

2.    2+ years of experience in software development in C or C++

3.    2+ years of experience in designing and implementing embedded systems for high performance, high reliability real-time embedded computing platforms

Job Description:

• Design and development of automotive feature/function software/components (ACC, AEB, TSR, LKA etc.) for ADAS/AD systems
• Coordination and regular interaction with different stakeholders and teams like testing, requirements, leads etc.
• Participate in SW requirement generation, SW architecture, detailed design etc.

Requirement:

• 3-7 years of experience in development of Algorithm & Functions for advance driver assist systems (ADAS), Autonomous driving (AD)
• Development experience with safety critical systems
• Experienced in development using MATLAB Simulink, TargetLink, Stateflow
• Experience in modelling and validation of control systems
• Knowledge of SIL, Performance Test, Functional testing
• Embedded software development using C, C++
• Issue management and version control
• Knowledge of ASPICE processes, Static analysis, MISRA checks etc.
• Strong written and verbal communication skills
• Proactive approach for problem solving

Good to have:

• Knowledge of ADAS/AD functions (ACC, TSR, AEB, LCA etc), Data Analysis
• Experienced in managing and authoring of function specification requirements
• Familiarity with AUTOSAR RTE

Nice to have:

• AUTOSAR, Functional Safety (ISO26262) exposure
• Scripting Knowledge - Python, MATLAB
• Working knowledge of automotive protocols like CAN, Ethernet etc.