IoT Engineer

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.

Role: Powertrain Diagnostics Engineer 

Location: Bengaluru 

Experience: 3-5 years 

About company: 

Requisimus is an IT consulting and service organization headquartered in Germany. With over 25 years of expertise and global presence, we are committed to customer excellence and focused in addressing niche areas of product engineering, process consulting and software development in automotive, railways, production automation, data management and business IT domains. Requisimus, India incubated since 2023, is focused to provided consulting and services for embedded product development and software solutions. 

Job Summary: 

The Powertrain Diagnostic Trouble Codes (DTC) Specialist having responsibilities for developing and managing the diagnostic trouble codes for powertrain systems. This role involves collaboration with cross-functional teams to ensure on-time delivery of diagnostic solutions that meet quality and regulatory standards. 

Key Responsibilities: 

• DTC Development and Management: 
• Experience in Diagnostics and Fault Management 
• Developing powertrain diagnostic strategies and DTCs, understanding of DTC Structure. 
• Ensure that diagnostic systems meet OBD I and II (On-Board Diagnostics) standards. 
• Maintain and update the DTC related Documents as new systems are developed and existing 
• systems are modified. 
• Knowledge of ISO14229. 
• Experienced programming with C/C++ 

Collaboration and Communication with Testing and Validation Team: 

• Working closely with the validation and vehicle testing teams for resolving reported issues to improve overall vehicle performance. 
• Based on testing & validate feedback: Analyzing, Diagnosing, Debugging and troubleshooting reported software issues, providing effective solutions. 
• Coordinate with software developers to ensure seamless operation and accurate reporting of DTCs. 
• Perform root cause analysis for diagnostic emissions and drivability cases. 

Documentation and Reporting: 

• Prepare comprehensive documentation for diagnostic algorithms and code functionalities. 
• Report on the performance and accuracy of diagnostic systems 

Support and Training: 

• Provide technical support to internal teams and external customers regarding diagnostic 
• systems. 
• Develop training materials and conduct training sessions 

Job Title

Hardware Engineer

Job Summary

We are seeking a Hardware Engineer to design, develop, and support low-power electronic hardware systems, from concept through production. The role involves schematic design, PCB layout, component selection, and collaboration with firmware and mechanical teams to deliver reliable and manufacturable hardware solutions.

Key Responsibilities

·        Design electronic circuits and develop schematics and PCB layouts

·        Select components based on performance, power, cost, and availability

·        Develop and review battery-operated designs

·        Ensure designs meet electrical, thermal, and reliability requirements

·        Support hardware bring-up, debugging, and validation

·        Prepare BOMs, Gerbers, and manufacturing documentation

·        Work closely with firmware, and testing team

·        Review and improve designs for DFM/DFA and production readiness

Required Qualifications

·        Bachelor’s degree in Electronics Engineering, Electrical Engineering, or related field

·        Strong understanding of analog and digital electronics

·        Experience with PCB design tools (Altium, KiCad, Eagle, or similar)

·        Familiarity with microcontrollers and embedded systems

·        Ability to read datasheets and apply reference designs

·        Basic knowledge of EMI/ESD protection and signal integrity

Preferred Qualifications

·        Experience with low-power or battery-operated hardware

·        Exposure to IoT devices, sensors, or communication modules

·        Experience supporting prototype to production transitions

·        Knowledge of manufacturing and testing processes

·        Ability to document designs clearly and professionally

Experience Level

·        2+ years

Soft Skills

·        Strong problem-solving skills

·        Ability to work independently and in cross-functional teams

·        Good communication and documentation skills

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

Skills Required:

- Good experience with programming language Python
- Strong experience in Docker.
- Good knowledge with any of the Cloud Platform like Azure.
- Must be comfortable working in a Linux environment.
- Must have exposure into IOT domain and its protocols ((Zigbee & BLE ,LoRa,Modbus)
- Must be a good team player.
- Strong Communication Skills

Role and Responsibility:

 Developing firmware for robust embedded system devices

 Active involvement in designing architecture, communication protocols & selection of technology.

 Designing test cases and active participation in testing

 Team building and grooming new members.

Candidate Skill Set:

 Thorough knowledge and hands on experience of Embedded C programming.

 Experience of firmware development on multiple microcontroller families like AVR, MSP430, STM32,

Renesas, etc.

 Strong programming & debugging skills.

 Knowledge of IDE’s like Keil, AVR Studio, IAR, Cubesuit will be an added advantage.

 Hands on experience of working on wireless communication (BLE, Wi-Fi, Zigbee, LoRa, GSM/ GPRS)

Qualification:

 A team player with excellent analytical, problem-solving skills, with strong ability to quickly learn.

 Passion for developing products with new technologies.

 Bachelor's/ master’s degree in electronics related discipline or equivalent experience

 Experience of 1-3 years