
About TEJAS NETWORKS LIMITED
About
Tejas Networks designs, develops and manufactures high-performance and future-ready optical and data networking products that are sold to telecommunications service providers, web-scale internet companies, utilities, large enterprises, defence and government entities in more than 60 countries. Tejas products are differentiated by a programmable, software-defined hardware™ architecture that provides flexibility, multi-generation support and a seamless software-enabled network transformation to its customers. Tejas is ranked amongst top-10 vendors in the global optical aggregation market.
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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
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
Role: Sr. Principle Engineer -Firmware
Experience: 8 to 10 Yrs.
Job description:
Primary skills:
- At least 8 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
- Prior experience with overseeing board bring-up and validation
- Hands-on experience on driver development for various sensors,Flash,PMIC
- 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
- Minimum 2+ years of experience doing hands-on software development in Bluetooth domain; application, framework, Bluetooth stack or drivers
- Working Experience In display driver development with MIPI/LVDS/QSPI will be a value addition
- Experience with hardware lab equipment such as digital scope, logic analyser and JTAG
- Understanding of embedded development constraints and system performance
- Hands-on Experience on System level integration
- Experience with programming in C/C++/python
- Experience in reading schematics
Secondary skills:
- Version Control System
- Working experience on BLE SoC like Nordic, Ambiq, Dailog
- Bug Tracking
What You'll Do
● Develop embedded system architecture that is efficient and scalable
● Develop multi-device system design, envision customer interaction, and corner cases to build issue-free design
● Develop firmware code for Interrupt driven system which interacts with Android and cloud
● Implement function safety, protection and security in the embedded system
● Implement predictive hardware failure features
Who You Are?
● Passionate individual who loves to work on embedded systems. a person who likes to drive things actively rather than waiting for tasks to get assigned.
● Strong programming capabilities
● Understanding of electronics and hardware
● Clear thought process, believe in simplifying rather than complicating
● Argue and fight over the opinions. Believe in delivering the best for the users
You Should Have
● 3+ year experience in embedded system design
● Mastery in C/C++ for embedded systems. Strong fundamentals of Microcontrollers and their common peripherals.
● Strong basics of C/C++, memory map, compiler functionality
● Done multiple projects during graduation/post-graduation. Participated and performed in tech competitions.
● Experience working with actuators like motors (DC/brushless), LED/LCD and HMI interfaces, speakers, sensors etc
● Experience working with motor control algorithms and PID controllers
- Proficiency with Linux OS and basic bash scripting
Responsibilities
- Design and implement software of embedded devices and systems from requirements to production and commercial deployment
- Design, develop, code, test and debug system software
- Review code and design
- Analyze and enhance efficiency, stability and scalability of system resources
- Integrate and validate new product designs
- Support software QA and optimize I/O performance
- Provide post production support
- Interface with hardware design and development
- Assess third party and open source software
Requirements
- Proven working experience in software engineering
- BS degree in Computer Science or Engineering
- Experience in hands-on development and troubleshooting on embedded targets
- Solid programming experience in C or C++
- Proven experience in embedded systems design with preemptive, multitasking real-time operating systems
- Familiarity with software configuration management tools, defect tracking tools, and peer review
- Excellent knowledge of OS coding techniques, IP protocols, interfaces and hardware subsystems
- Adequate knowledge of reading schematics and data sheets for components
- Strong documentation and writing skills
Summary:
The embedded systems engineer designs, develops, tests, and maintains embedded systems. The engineer will identify and fix issues and work collaboratively with engineers, product managers, and others on various teams.
Responsibilities:
- Design and build embedded systems, including embedded system firmware
- Test and debug the systems
- Monitor and maintain the system after development
- Improve system efficiency and stability after development
- Collaborate with customers to create systems based on their needs
Requirements:
- Minimum of a bachelor's degree in computer science or engineering
- Professional experience in embedded systems
- Significant programming experience in C or C++
- Experience in trouble-shooting embedded systems and microcontroller peripherals
- Experience in working in real-time operating systems
- Experience in interfaces, IP protocols, and hardware subsystems
- Proficiency in working with common embedded systems communication protocols
- Strong interpersonal and writing skills
- Ability to work as part of a team
- Exceptional analytical and problem-solving skills
- Self-motivated and passionate about your work and embedded systems
- Always eager to learn and improve









