Linux System Administrator

Key Responsibilities

• Maintain and enhance the Yocto BSP for the TechNexion PICO-IMX6 DualLite (NXP i.MX6) platform.
• Assess and execute migration from Yocto Zeus to a newer LTS release (e.g., Dunfell/Kirkstone).
• Integrate stable Linux kernel patches from NXP and mainline.
• Optimize system boot time, startup sequence, and overall performance.
• Remove unnecessary services and packages to reduce image footprint.
• Update and stabilize the Bluetooth stack (BlueZ and firmware).
• Optimize Linux kernel configuration, power management, and CPU tuning.
• Debug CPU, memory, storage, and I/O performance issues.
• Maintain Yocto layers, build process, and technical documentation.
• Define and maintain eMMC/SD storage layouts for boot, rootfs, data, and update partitions.

Required Skills

Mandatory

5+ years of Embedded Linux development experience.

2+ years of hands-on Yocto Project experience.

Strong expertise in:

• Yocto (recipes, meta-layers, BitBake, bbappend)
• Linux kernel configuration and patching
• NXP i.MX6 or similar embedded platforms
• Systemd optimization and boot profiling
• Embedded Linux debugging (dmesg, perf, ftrace, systemd-analyze)
• BlueZ and Bluetooth bring-up
• Cross-compilation, toolchains, and Git workflows

Preferred

• Yocto LTS migration experience.
• U-Boot optimization.
• Embedded power optimization.
• Secure Boot and OTA update concepts.
• Exposure to Qt-based embedded systems.

Key Deliverables

• Optimized and maintainable Yocto BSP.
• Reduced system boot time.
• Lean system image with redundant services removed.
• Stable Bluetooth stack with updated patches.
• Updated Linux kernel with critical fixes.
• Documented Yocto layers and build process.
• Migration plan for the latest Yocto LTS.
• Defined storage partition layout for deployment.

Experience: 5+ Years in Embedded Linux (Minimum 2+ Years with Yocto)

Key Responsibilities

● Contribute to firmware architecture discussions and implement embedded solutions

aligned with product requirements.

● Design, implement, and maintain low-level code (C/C++ and Assembly) for device

drivers, RTOS-based systems, and communication protocols.

● Work with microcontrollers (ARM Cortex-M, RISC-V, etc.), SoCs, and interfaces (UART,

SPI, I2C, USB).

● Participate in board bring-up, debugging, and validation using JTAG/SWD, logic

analyzers, and oscilloscopes.

● Support OTA updates, bootloaders, and watchdog implementations to ensure robust

device operation.

● Collaborate with QA and production teams on testing, DFU flows, and manufacturing

integration.

● Document design specifications, APIs, and debugging procedures for internal use.

● Stay updated on embedded industry practices, toolchains, and frameworks to enhance

development quality.

Qualifications / Skill Set

● Bachelor’s or Master’s degree in Electrical/Electronics Engineering or related field.

● 4–7 years of hands-on experience in embedded systems and firmware development.

● Strong programming skills in C/C++ with familiarity in Assembly.

● Experience with FreeRTOS or similar RTOS.

● Hands-on expertise with STM32, Nordic, or Renesas controllers is a plus.

● Knowledge of power optimization, OTA mechanisms, and firmware security.

● Skilled in debugging embedded systems using JTAG/SWD and related tools.

● Experience with Git-based workflows; scripting knowledge in Python is desirable.

● Prior experience delivering production-grade firmware is an advantage.

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).

Key Responsibilities:

• Install, configure, and maintain Hadoop clusters.

• Monitor cluster performance and ensure high availability.

• Manage Hadoop ecosystem components (HDFS, YARN, Ozone, Spark, Kudu, Hive).

• Perform routine cluster maintenance and troubleshooting.

• Implement and manage security and data governance.

• Monitor systems health and optimize performance.

• Collaborate with cross-functional teams to support big data applications.

• Perform Linux administration tasks and manage system configurations.

• Ensure data integrity and backup procedures.

Job Overview:

We are seeking a talented Android Framework Engineer to join our development team at Primebook. As an android framework developer, you would be responsible for development, coding, testing and debugging of system features and system apps of PrimeOS, driving technical excellence, and shaping the direction of our products. You will work closely with our CTO to create cutting-edge features that meet user needs and business goals.

Key Responsibilities:

• Understand product requirements and translate them into technical requirements.
• Create secure and high-quality production level code that runs well with different android versions and devices with different screen sizes.
• Development and debugging of android framework components like SystemUI, PhoneWindowManager, Settings database etc.
• Should be capable of developing applications from scratch, debug and fix issues quickly when they are found.
• Collaborate with various teams (Product, Design & Testing) to develop and ship new features.
• Should be able to write scalable and efficient code for handling the load of 100k+ users.
• Ensure the best possible performance, quality, and responsiveness of the application, good knowledge of threads in android is necessary.
• Excellent debugging skills, including identifying memory leaks, performance bottlenecks, and using tools like ADB, proguard, etc

Qualifications:

• A “Bring It On” attitude; bias for action; self-driven, end-to-end ownership; entrepreneurial approach; focus on operational excellence; ability to work with ambiguity.
• B.tech degree in Computer Science or equivalent
• 3-5 years of experience with portfolio of work to show the skill set
• Should have developed at-least 2-3 android apps from scratch
• Experience in compiling AOSP and solving common build errors is a must have
• Should have experience working with SystemUI and android framework_base
• Excellent knowledge of Java, Kotlin, MVVM architecture
• Experience with popular libraries (Jetpack, Retrofit, Glide, OkHttp, Gson etc.)
• Experience with RESTful APIs to connect Android applications to backend services
• Must be good at building logics and working with data structures

Perks and Benefits:

Job type: On-site, 5 days a week

Industry Type: Computer Hardware Manufacturing

Functional Area: Testing And Development

Employment Type: Full Time, Permanent

Salary: Upto 20 Lacs (depends on skill)

We are looking networking professionals with the following skill set,

Experience :6+ years of experience in the networking domain

Key skills:

• Must have 6+ years of experience in C/C++ programming language.
• Knowledge of Go programming language and Python programming language is a big plus.
• Strong background in L4-L7 Internet Protocols TCP, HTTP, HTTP2, GRPC and HTTPS/SSL/TLS.
• Background in Internet security related products such as Web Application Firewalls, API Security Gateways, Reverse Proxies and Forward Proxies
• Proven knowledge of Linux kernel internals (process scheduler, memory management, etc.)
• Experience with eBPF is a plus.
• Hands-on experience in cloud architectures (SaaS, PaaS, IaaS, distributed systems) with continuous delivery
• Familiar with containerization solutions like Docker/Kubernetes etc.
• Familiar with server less technologies such as AWS Lambda.
• Exposure to machine learning technologies and distributed systems is a plus

Want to work with an established & growing IT company? Join team Benison to have the right challenges that will help you accelerate your career growth to the next level, faster!   

Benison Technologies was started in 2011 with a mission to revolutionize the silicon industry in India, with a host of amazing big clients like Google, Cisco, McAfee, Intel, and so on, you get to experience the best of both worlds. If you consider yourself an engineer who is capable to join our ever-growing team, then this is the right opportunity for you:  

Why Benison Tech?   

We have a partial acquisition from one of the biggest names in the world (well we cant name them thanks to confidentiality) it’s one of the FAANG companies, and you can “Google” it if you like.  

Oh! & one more thing, this did not happen by accident, our team put a ton of efforts to turn this gigantic dream into a reality.  

Benison Tech has a consistent history of demonstrating growth through innovation time and again.   

We don’t stop there, we then re-invest our profits back into the initiatives for the growth of our people, our culture and the company. Now enough with us, let’s talk about the job roles & responsibilities:    

What you will be working on: 

• You will be working on the next generation network security products, on various public clouds. 
• In addition to development, you will also get your hands involved in the architectural changes while fixing the legacy issues. 
• Planning, designing, integration for network security platforms. 

• Key contributor for developing product strategies and features. 
• You will also work on specific modules to help BYOD setups perform in a streamlined manner. 

Here are some technical skills required:  

• Strong in kernel networking datapath, and TCP/IP stack.   

• Develop Linux Kernel Drivers.   
• Good exposure to Makefiles, and building RPMs.   
• Working to develop and test complex systems software, software development tools, applications, drivers, numerical methods, UIs, and web.    
• May work directly with companies developing and optimising compilers, operating systems, and other software technologies.   
• Designing & coding to support new features in the OS or Products.   

• Debugging kernel code.   
• Debugging customer issues.   
• Performance evaluation/improvement of Kernel Code.   
• Participate in production deployment and assist the production support group when needed.   

What we expect from you:  

• 3 Years of relevant Experience   
• In-depth working knowledge of Linux Operating System.   
• Excellent Linux system development debugging skills, including Linux kernel debugging.   
• Outstanding C development skills.   

• Good understanding of Networking L2 –L7 Protocols and network kernel driver.   
• Experience in porting from various Linux kernel versions.   
• Be a quick learner and be open to working on new technologies if needed.   
• Excellent team player with strong verbal & written communication skills.   
• Be able to step up when the situation demands such as meeting deadlines and critical production issues.   

• Work Independently with a skilled team while defining new system requirements based on custom interaction and inputs 

If the above fits your skill-sets and tickles your interest then read below about the additional benefits that our company offers to talented folks like you:  

Work Culture and Benefits    

• Competitive salary and benefits package  
  (H1-B which means a chance to work onsite out of India)   
• A culture focused on talent development where you get promoted within the quarterly cycle of your anniversary. 
• Opportunity to work with cutting-edge & challenging technologies including legacy tech. 
• Open cafeteria to grab some munchies while you work, we make sure the space feels like your second home, you can also wear pyjamas if you like.   
• Employee engagement initiatives such as project parties, flexible work hours, and long service awards, team bonding activities within the company, extra learning and personal development trainings, because why stop your learning at one thing!   

• Insurance coverage: Group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and your parents. (With some of the best insurance partners in India)  
• Enjoy collaborative innovation (each members gets to innovate & think out of the box), along with highly experienced team managers who maintain diversity and work-life well-being.  
• And of course, you get to work on projects from some of the most recognised brands within the networking and security space of the world, unlocking global opportunities to learn, grow & contribute in a way that is truly impactful yet purposeful at the same time.  

Still not satisfied, and want more proof?  

Head to our website https://benisontech.com/">https://benisontech.com to learn more.  

Primary Skill: System Software Development

Skill sets req:

• Linux porting/development; Linux kernel concepts
• Expertise in Linux BSP device driver development
• Customizing kernel + Porting + Developing Applications Linux Device Driver Development (Character devices) Good Concepts of Network Drivers File Systems Concepts
• Expertise in porting, network stack; optimization, network programming
• Bootloader/Uboot porting
• Camera driver development (Good to have)

Job Area Engineering - Software

Location Remote

Job Description

This position is ideal for a Senior SW engineer who is passionate about solving challenging business problems and building security services that provide an excellent client experience. You will be an integral part of the vulnerability assessment product development team focusing on designing, coding, and testing new and enhanced security services for z/Linux. The successful candidate should be a self-motivated individual with expert software engineering skills and solid expertise with IBM mainframe technologies. Candidate must be flexible and willing to switch tasks based on team's needs.

Qualifications

Basic Qualifications

• Bachelor's degree in Engineering, Information Systems, Computer Science, or related field.
• 1+ years experience with Programming Language such as C, C++, Java, Python, etc.
• Linux kernel and device driver development
• Experience with development boards such as DragonBoard
• Experience with python, perl, rust, shell scripting
• C programming and debugging skills

Preferred Qualifications

• CPU and cache architectures
• Experience with JTAG and GDB debuggers
• Linux Kernel upstream patch submission
• CPU performance and power analysis

• Independent and self-motivated problem solver and strategic thinker
• Proficient in Git for development and patch/branch management

Essential Functions

• Good planning, time management, decision-making, presentation, and organization skills
• Effective written and verbal communication
• Excellent interpersonal and teamwork skills