MCU Application Software Development (MBD) Engineer

Role: Senior PLC Developer

Location: Pune

Experience: 3-7 years

About company:

Requisimus is Germany headquartered, IT consulting and service organization. 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.

Job Summary

We are seeking a skilled and proactive PLC engineer with good aptitude in programming.

Candidate should be flexible to work on PLC and eager to learn Embedded software in future.

Key Responsibilities:

• Strong PLC programming skills in Functional Block Diagram, Ladder Programming, Structured Text and SFC

• Good knowledge of UML diagrams

• Good understanding of Communication protocols over Ethernet.

Good to have:

• Good Communication Skills and Exposure to international customer.

• Experience or knowledge in Software version control tools eg. Git, SVN, etc.

• Eager to learn Embedded C, Firmware development, etc.

• Providing solutions to issues related to the connection of networks and platforms

Senior hardware engineer - Power electronics

Experience: 5 to 10 years experience

Job Location: Pune

Job Description:

• Design, simulate, and develop a variety of power electronic circuits, including AC-DC, DC-DC converters
• Develop schematics using CAD tools such as Mentor and Altium and collaborate with PCB engineers on layout development.
• Support simulation activities using tools LTspice, or similar, helping to build and analyze design.
• Participate in the prototyping and testing of power electronic circuits and components under guidance.
• Help with the assembly and validation of test setups and perform measurements in the lab.
• Assist in the documentation of design details, test procedures, and results.
• Gain exposure to relevant industry standards and regulatory requirements for power electronics.
• Collaborate with other engineering disciplines to understand system-level requirements and interactions.
• Contribute to root cause analysis of issues encountered during testing or production under supervision.

Experience and Qualifications:

• B.Tech/M.Tech with specialization in Electrical or Electronics Engineering.
• Overall Experience of 5-10 Years.
• Specific experience of 2-4 years of experience in the design and development of power electronic systems like DC-DC converters or chargers.

Must Have Competencies:

• Proficiency in electric circuit design and analysis involving power devices, gate drivers and passive elements.
• Good understanding of common topologies for power converters and inverters.
• Proficiency in Microcontrollers and peripherals like PWM, ADC etc.
• Hardware and firmware debugging skills for troubleshooting.

Good to Have Competencies:

• Experience with non-idealities in power electronic devices like diodes, MOSFETs, transformers and inductors.
• Knowledge of layout and how it impacts performance.
• Knowledge of EMI/EMC compliance and safety standards like UL, VDE, IEC, or BIS.
• Proficiency in simulation and design tools such as LtSpice, PSIM, MATLAB, Allegro, or Hyperlynx.

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.

Primary skills:

At least 3+ years of working experience on embedded firmware development

- Experience in multithreaded programming, network programming (wired and wireless protocols), real-time programming, cross-platform and cross-language development

- Hands-on experience on driver development for various sensors

- Working knowledge of communication protocols like UART, I2C, SPI, USB, Ethernet, etc

- Product development experience with range of microcontroller/microprocessor architectures, adoption of bare-metal, RTOS and Linux operating systems on new platforms

-Hands-on experience on software development in Bluetooth domain is added advantage

- Experience with hardware lab equipment such as digital scope, logic analyser and JTAG

- Understanding of embedded development constraints and system performance

- Experience with programming in C/C++ and Embedded C

JD For Embedded C Engineer requirements :

Mandatory Skillsets are as below :

1. Embedded SW development background

2. Embedded C/C++/

3. Hands-on experience in RTOS Programming.

4. Working knowledge of SDLC and methodologies/tools for requirement management.

5. Experience working in an agile development environment.

• Firmware Design and Development experience on different micro-controllers.
  
• C/C++ programming
  
• Linux Commands Operating System Concepts
  
• board bring up, embedded software, Kernel Build, Yocto
  
• Shell scripting Networking Concepts Openwrt OS Concepts
  
• Must have good Communication and Presentable skills.
  
• Experience on any Wifi, Bluetooth, GSM modules is a plus.
  
• Design, develop, code, test and debug system software.

Automotive Embedded Developer

Experience: 3-8 Years
Location: Bangalore, Hyderabad, Chennai, Pune, Thiruvananthapuram, Calicut
Company: Tata Elxsi

Skills : Embedded C, CAN Protocol, Vector Tools, Aspice. Design and Development of ECU 

• Works towards developing Stable & Efficient Firmwares for Embedded
• Responsible for developing Firmware which are Stable, Efficient and scalable.
• Responsible to create coherent and scalable architecture designs.
• Responsible for understanding and utilizing best BLE / IOT
• Responsible for understanding various RTOS design principles.
• Qualification: B.E. / B.Tech / M.C.A. in Computer Sciences.
• Must Proficient in Embedded C, C++, BLE, Zephyr RTOS, nRF.
• Ready to work from home.
• Should have above 4 years of experience.