Software Engineer(Layer 2/Layer 3)
at It offers user-friendly fiber speed equipment.
Software Engineer(Layer 2/Layer 3)
Location : Gurgaon (WFH currently)
Experience/ Skills Required : 5 to 10 years
To be successful in this role you should be well versed with the concepts of networking and comfortable in C programming in a linux environment for embedded software. As we use Linux, experience with this operating system is a mandatory requirement, knowledge and experience on OpenWrt is a bonus. Working experience with router software development for layer 3 and layer 4 features.
Domain knowledge required: IPv4, TCP/UDP, IPv6, NAT, Firewall (iptables), DHCPv4, DHCPv6, IPv6 prefix delegation, Port forwarding, Source based routing, Policy based routing, L3 QoS, IGMP proxy, IPv6 MLD snooping, DNS, DNS proxy. Knowledge on VoIP is a bonus.
Management methods: TR069, SNMPv2, CLI.
Operating system: Linux, OpenWrt
Programming languages: C(must have), Python
Working for us means having a healthy interest in Software but most of all, you like to work in a team. You like to take initiative and have the “just do it” approach. Having the right mentality and attitude are more important for us than a degree. Dedication, investigation and responsibility are keywords for us. Preferred years of experience in industry/technology: 5-10 years.
Role:
As a Software Engineer you develop new software features and solutions for our fibre connectivity product portfolio. The position offers a wide range of possibilities to work with everything from low-level Linux drivers to high-level applications. You develop for various protocols and HW interfaces, often in complex network scenarios in combination with customer specific requirements. The team is responsible for all SW development for existing and new Home Gateways. This means development of Linux drivers, network functionality, remote Management (TR-069) and VoIP application (sipapp). The development is mainly done in C and in Linux environment, knowledge in Python is an add-on. Products and development are realized in Agile.

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Job Summary
We are seeking a highly skilled and motivated Linux Device Driver Engineer with strong C/C++ programming skills and hands-on experience in Linux driver development. The ideal candidate will have a proven track record of working with kernel modules and hardware interfaces, and be comfortable debugging and optimizing low-level system software.
Key Responsibilities
- Porting existing Linux device drivers to new platforms, SoCs, and kernel versions.
- New driver development for custom hardware components and peripherals.
- Debugging kernel and driver-level issues using industry-standard tools.
- Integration & bring-up of hardware with Linux-based systems.
- Collaborate with hardware teams to interpret specifications and enable device functionality.
- Optimize drivers for performance, reliability, and resource efficiency.
- Write clear technical documentation for driver APIs, design, and integration steps.
Required Skills & Qualifications
- Bachelor’s/Master’s in Computer Science, Electronics, or related field.
- 4 to 8 years of professional experience in software development.
- Strong proficiency in C/C++ programming and memory management.
- Hands-on experience with any Linux device driver (character, block, network, USB, PCIe, I2C, SPI, etc.).
- Good understanding of Linux kernel architecture, module programming, and build systems.
- Knowledge of interrupt handling, DMA, and device tree configuration.
- Familiarity with cross-compilation and embedded Linux toolchains.
- Experience with debugging tools (GDB, ftrace, perf, printk, etc.).
- Version control experience (Git).
Preferred Skills
- Exposure to multiple driver types (networking, storage, multimedia, etc.).
- Experience with Yocto, Buildroot, or similar embedded Linux environments.
- Knowledge of real-time Linux and RT patches.
- Scripting knowledge (Python, Bash) for testing and automation.
Soft Skills
- Strong analytical and debugging skills.
- Good communication and collaboration abilities.
- Ability to work independently and take ownership of deliverables.
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 You'll Need
- At least 3 years of C++ programming experience in a Linux environment.
- Strong understanding of computer systems e.g. operating systems, networks, performance optimization, etc
- Experience in Object-Oriented design and multi threaded programming
- Experience in creating/supporting cross-platform multi threaded applications
- Strong analytical and problem solving skills
- Ideally some experience in developing low latency systems
- Experience with trading or execution systems preferred
- Bachelor's degree in Computer Science or Computer Engineering or related field
- Reliable and predictable availability
Ideally in Mumbai Metro Area but open to anywhere for the right candidate.
Domain Skills
Leads a team of Engineers for designing and architecting next generation platform solutions for clusters/Interior monitoring systems
Architecting the design for new features and technologies for Platform.
Expertise in programming using C, C++ and good understanding of OOAD & UML
Capable of analyzing HW schematics to realize the SW requirements.
Support and resolve issue resolutions and clarification for cross-functional teams.
Support team lead and project manager at program level in resolving open issues
Technical Skills
Expertise in memory management (eMMC, NAND)
Design, Develop and test device drivers in Linux/Android/QNX platform.
Multithreaded programming, usage of IPCs, Interrupts & synchronization methods.
Expertise in using the communication protocols (I2C, SPI & UART) in the device driver.
Expertise in handling Device Tree based configurations.
Strong C & C++ programming skills, OOPS concepts
Linux Architecture knowhow
Strong in software development for real-time embedded systems
Experienced in Design/Architecture Tools like EA
Expertise in SCM Tools like GIT/GERRIT
Ability to create and review changes for Gerrit and participate in a continuous integration loop
Ability to create/understand the build infranstructure using CMake for the middleware components
Experience in Unit test tools like cppunit, gtest.
Know-how and experience of SAFe/Agile Development
Knowledge in Automotive Safety Standards and Processes (ASPICE).
Logical, Analytical and Debugging/Problem-Solving skills
Qualifications
B.E/B.Tech in Computer Science with hands on with Embedded software development on RTOS
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
Job Description
Embedded Software/Firmware Design and Development on OS/Non-OS based platform
Necessary system architecture development and implementation
Device, sensor and gateway selection and integration based on industry use case.
Development on Image Analytics and Cloud/Platform integration
Development or integration of Cloud/Platform communication protocol
Technical Documentation and Testing of the developed system
Desired Skills, Knowledge& Experience
B. Tech/M. Tech/MCA with 8-10 years of industry experience
Strong programming skills in C/C++ and Python development in Linux
Experience in device or sensor communication interfaces (wired/wireless, short range/long range).
Experience of microcontroller and microprocessor.
Knowledge of IoT gateway firmware development, container, and OS hardening.
Experience in device communication protocol, Edge computing and processing
Competent in application development for Image processing, transmission, and storage
Good understanding and of programming primitives, data structures, multi-threading and memory management techniques
Strong command over complex sensor and hardware control logic to work seamlessly with edge devices or gateway
Proactive and Self motivated
Strong verbal and written communication skill









