QT Developer

Key Responsibilities

1. Kernel Lifecycle & Maintenance

Upstream Alignment: Lead the strategy for upgrading enterprise kernels (e.g., migrating from LTS 5.15 to 6.6) while maintaining binary compatibility where required.

Patch Porting: Expertly port functional and performance patches between disparate kernel versions, resolving complex code conflicts and API changes.

CVE Mitigation: Monitor the Linux Kernel Mailing List (LKML) and security advisories to identify and backport CVE patches from upstream to production environments.

2. Deep-Dive Debugging & Stability

Panic Analysis: Act as the final escalation point for Kernel Panics and "Oops" messages. Utilize kdump, crash, and gdb to perform post-mortem analysis of vmcores.

Boot-Time Resolution: Debug critical failures during the early boot process (UEFI handoff, initramfs, and early kernel init) where standard logging is unavailable.

Performance Tuning: Use ebpf, ftrace, and perf to identify bottlenecks in memory management, scheduler latency, or I/O throughput.

3. Driver Development & Hardware Integration

Driver Ownership: Design, develop, or maintain at least one Open Source or Proprietary Device Driver (Network, Storage, GPU, or Character devices).

Hardware Abstraction: Interface directly with hardware registers, managing DMA mappings, and optimizing interrupt handling (MSI-X, Threaded IRQs).

Out-of-Tree Management: Maintain driver compatibility across kernel updates using DKMS or similar frameworks.

4. Infrastructure & Automation

Registry Management: Oversee the distribution of custom kernel builds and modules via GitLab Container/Package Registries.

CI/CD for Kernel: Build automated testing pipelines (Hardware-in-the-loop) to validate kernel stability before enterprise-wide deployment.

Required Technical Skills:

Languages: Mastery of C/C++ Programming (C is preferred)

Kernel Internals: Deep understanding of VFS, Memory Management (MMU/Paging), Process Scheduling, and Networking Stacks.

Debugging Tools: Expert-level use of kprobes, trace-cmd, valgrind, and hardware-level debuggers (JTAG/Serial Console).

Build Systems: Proficiency with Kbuild, Makefiles, and building RPM/Debian packages for kernel distribution.

Security: Hands-on experience with SELinux/AppArmor policy development and kernel hardening (FIPS, KSPP).

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

About us:

Arista Networks was founded to pioneer and deliver software driven cloud networking solutions for large datacenter storage and computing environments. Arista's award-winning platforms, ranging in Ethernet speeds from 10 to 400 gigabits per second, redefine scalability, agility and resilience. Arista has shipped more than 20 million cloud networking ports worldwide with CloudVision and EOS, an advanced network operating system. Committed to open standards, Arista is a founding member of the 25/50GbE consortium. Arista Networks products are available worldwide directly and through partners.

About the job

Arista Networks is looking for world-class software engineers to join our Extensible Operating System (EOS) software development team.As a core member of the EOS team, you will be part of a fast-paced,high caliber team-building features to run the world's largest data center networks.Your software will be a key component of Arista's EOS, Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products.

The EOS team is responsible for all aspects of the development and delivery of software meant to run on the various Arista switches.You will work with your fellow engineers and members of the marketing team to gather and understand the functional and technical requirements for upcoming projects.You will help write functional specifications, design specifications, test plans, and the code to bring all of these to life.You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests.At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.

This role demands strong and broad software engineering fundamentals, and a good understanding of networking including capabilities like L2, L3, and fundamentals of commercial switching HW.Your role will not be limited to a single aspect of EOS at Arista, but cover all aspects of EOS.

Responsibilities:

• Write functional specifications and design specifications for features related to forwarding traffic on the internet and cloud data centers.
• Independently implement solutions to small-sized problems in our EOS software, using the C, C++, and python programming languages.
• Write test plan specifications for small-sized features in EOS, and implement automated test programs to execute the cases described in the test plan.
• Debug problems found by our automated test programs and fix the problems.
• Work on a team implementing, testing, and debugging solutions to larger routing protocol problems.
• Work with Customer Support Engineers to analyze problems in customer networks and provide fixes for those problems when needed in the form of new software releases or software patches.
• Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.
• Mentor new and junior engineers to bring them up to speed in Arista’s software development environment.
• Review and contribute to the specifications and implementations written by other team members.
• Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead.

Qualifications:

• BS Computer Science/Electrical Engineering/Computer Engineering 3-10 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 5 years experience, Ph.D. in Computer Science/Electrical Engineering/Computer Engineering, or equivalent work experience.
• Knowledge of C, C++, and/or python.
• Knowledge of UNIX or Linux.
• Understanding of L2/L3 networking including at least one of the following areas is desirable:

1. IP routing protocols, such as RIP, OSPF, BGP, IS-IS, or PIM.
2. Layer 2 features such as 802.1d bridging, the 802.1d Spanning Tree Protocol, the 802.1ax Link Aggregation Control Protocol, the 802.1AB Link Layer Discovery Protocol, or RFC 1812 IP routing.

• Ability to utilize, test, and debug packet forwarding engine and a hardware component’s vendor provided software libraries in your solutions.
• Infrastructure functions related to distributed systems such as messaging, signalling, databases, and command line interface techniques.
• Hands on experience in the design and development of ethernet bridging or routing related software or distributed systems software is desirable.
• Hands on experience with enterprise or service provider class Ethernet switch/router system software development, or significant PhD level research in the area of network routing and packet forwarding.
• Applied understanding of software engineering principles.
• Strong problem solving and software troubleshooting skills.
• Ability to design a solution to a small-sized problem, and implement that solution without outside help.Able to work on a small team solving a medium-sized problem with limited oversight.

Resources:

• Arista's Approach to Software with Ken Duda (CTO): https://youtu.be/TU8yNh5JCyw
• Additional information and resources can be found at https://www.arista.com/en/

• Perform analysis, design and implementation of assigned projects using sound engineering principles and adhering to business standards, practices, processes, and product / program requirements
• Engage with global teams to effectively translate customer requirements to software requirements and identify potential solutions that are optimized to operate with in constraints of the product
• Troubleshoot variety of complex software problems
• Provide timely status updates and proactive communications on issues to the stakeholders.
• Able to interface with internal and external stake holders regarding software issues.
• Contribute as part of teams put together to meet overall organization initiatives/objectives
• As a technical lead,

1. Guide team efforts towards successful deliverables.
2. Provide technical leadership to teammates through coaching and mentorship.
3. Able to effectively manage escalations and operate under crisis
4. Have the ability and willingness to acquire in-depth understanding of domain and existing products (beyond software) and apply that knowledge to develop new products and to deliver enhancements/ fixes for customer requirements.
   
   

• Background in Industrial Automation
• Prior experience in supervisory control systems software
• Bachelor of Engineering degree in Computer Science/Information Science/Electronics/Electrical/Instrumentation with strong back ground in Industrial automation software
• Strong C, C+ programming on variety of Windows platforms using Microsoft technologies
• Sound knowledge of Computer Science fundamentals data structures, algorithms, operating system concepts
• Excellent analytical skills, methodical problem-solving skills and troubleshooting skills
• Prior experience of working in global teams and interfacing with multiple stake holders
• Excellent communication skills (verbal and written) and the ability to interact with extended teams spread across the globe.

* Experience in C/C++ and have strong experience embedded application development and integration in Linux

* Good in creating unit tests, performing code reviews, optimizing performance and ensuring standards for maintainability  

* Debugging, profiling, and performance optimization 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

• Develop embedded Linux Applications
• Work with a worldwide team to integrate the product to meet the requirement

Required Qualifications:

• Degree in Computer Science from a top-tier institution
• Relevant full-time work experience of 4+years
• Strong foundation in computer science, Object-Oriented software, unit testing & test automation with scripts
• Ability to self-teach.

Mandatory Technical Skills:

• Expert level programming in C/C++
• Linux systems programming, data structures & algorithms
• Networked applications

Desirable Technical Skills:

• Linux Board Bring up, device drivers would be an advantage