Linux System Administrator

Role Overview

We are looking for a skilled Systems Engineer with strong expertise in Ansible automation, Kubernetes, and system-level scripting. This role focuses on building scalable automation and managing GPU-aware infrastructure.

Key Responsibilities

• Develop and maintain automation workflows using Ansible
• Write and optimize Ansible playbooks for infrastructure and application deployment
• Automate system-level tasks using Bash scripting
• Debug and test automation workflows for reliability and scalability
• Manage Kubernetes clusters, including:
• Pod lifecycle management
• Networking and firewall configurations
• GPU resource mapping and scheduling
• Custom Resource Definitions (CRDs)
• Collaborate with engineering teams to integrate automation into CI/CD pipelines
• Ensure secure and scalable infrastructure for AI workloads

Requirements

• Strong hands-on experience with Ansible and automation workflows
• Solid Linux system administration experience
• Proficiency in Bash scripting
• Deep understanding of Kubernetes (pods, networking, CRDs, GPU scheduling)
• Experience in debugging and optimizing automation systems
• Strong problem-solving and ownership mindset

Nice to Have

• Experience with GPU workloads or HPC environments
• Exposure to monitoring tools like Prometheus and Grafana

Job Summary

We are seeking an experienced Senior System Administrator responsible for managing and maintaining the organisation’s IT infrastructure, including Windows and Linux servers, network devices, security systems, storage solutions, and enterprise applications. The role ensures high availability, security, and performance of all IT systems while supporting business operations.

Key Responsibilities

Server Administration

• Install, configure, and maintain Windows Server environments (Active Directory, DNS, DHCP, Group Policy).
• Manage and maintain Linux machines for application hosting and system services.
• Administer and maintain Application Servers supporting internal business applications.
• Manage and maintain Biometric Servers used for employee attendance and access control systems.
• Monitor server health, performance, and system logs.
• Perform system updates, patches, and security hardening.

Storage and File Services

• Manage and maintain Samba File Servers for shared storage and user access.
• Administer NAS storage systems (Synology), including storage allocation, access permissions, and performance monitoring.
• Ensure proper storage utilisation and secure data access.

Network Infrastructure Management

• Configure and manage Sophos Firewall, including firewall rules, NAT policies, VPN configuration, and threat protection.
• Configure and maintain Cisco and Netgear switches, including VLAN configuration and network segmentation.
• Manage and maintain wireless access points to ensure reliable and secure Wi-Fi connectivity.
• Monitor network performance and troubleshoot connectivity issues.

Proxy and Security Management

• Install, configure, and maintain Proxy Servers for internet access control and monitoring.
• Monitor firewall logs, network security alerts, and implement security policies.
• Ensure network infrastructure is protected against unauthorised access and threats.

Backup and Disaster Recovery

• Implement and manage backup and restore solutions for servers, NAS, and critical business data.
• Perform periodic backup verification and disaster recovery testing.
• Ensure backup policies and schedules are properly maintained.

Power and Infrastructure Management

• Monitor and maintain UPS systems to ensure an uninterrupted power supply for servers and network infrastructure.
• Coordinate with vendors for UPS maintenance, battery replacement, and power infrastructure reliability.

System Monitoring and Troubleshooting

• Proactively monitor servers, network devices, storage systems, and applications.
• Troubleshoot and resolve system, network, and application-related issues.
• Maintain proper documentation of infrastructure configurations and procedures.

Vendor and Infrastructure Coordination

• Coordinate with vendors for hardware procurement, infrastructure support, and service management.
• Plan and implement infrastructure upgrades and improvements.

Required Skills

• Strong experience with Windows Server Administration
• Good knowledge of Linux System Management
• Experience with Sophos Firewall
• Knowledge of Cisco and Netgear networking devices
• Experience with NAS storage (Synology) and Samba File Server
• Experience managing Application Servers and Biometric Systems
• Experience with Backup and Disaster Recovery
• Understanding of network security and monitoring

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 Title: Linux Project Administrator (RHEL)

Experience: 8-12 Years

Location: Pan India

Open Positions: 1

Role Overview

We are looking for an experienced RHEL Linux Administrator to manage and support enterprise Linux environments. The candidate should have strong hands-on expertise in system administration, patch management, automation, and performance tuning. This role requires proactive monitoring, troubleshooting, and ensuring high availability of Linux platforms.

Must-Have Technical Skills

1. Red Hat Enterprise Linux (RHEL) & Solaris – In-depth Knowledge

Strong understanding of Linux system internals, kernel tuning, boot process, file systems, and performance monitoring. Ability to analyze logs and troubleshoot complex OS-level issues.

2. Patching Using Red Hat Satellite

Hands-on experience in managing repositories, content views, lifecycle environments, and performing patching activities through Satellite. Knowledge of repo sync and package management processes.

3. Ansible Automation

Experience in creating and executing Ansible playbooks for configuration management, patching, and user management. Ability to perform pre- and post-validation checks and automate routine administrative tasks.

4. Scripting Knowledge

Proficiency in Shell scripting or similar scripting languages to automate system administration tasks and operational processes.

5. Performance Monitoring & System Optimization

Experience in identifying performance bottlenecks and implementing tuning measures to ensure system stability and efficiency.

Good-to-Have Skills

1. GitHub / Subversion / TeamCity

Working knowledge of version control systems and CI/CD tools for automation and deployment workflows.

2. NFS & CIFS

Experience in configuring and troubleshooting network file systems and shared storage environments.

3. Networking, Storage & Virtualization

Good understanding of networking layers, storage concepts, database connectivity, and virtualization platforms.

4. AWX

Exposure to AWX for managing and scheduling Ansible automation workflows.

5. CI/CD & Automation Concepts

Understanding of automation frameworks, pipeline concepts, and DevOps practices.

Key Responsibilities

• Ensure all tickets are addressed and updated within SLA in the ticketing tool.
• Participate in team rotation and support activities.
• Maintain Linux platforms in a highly available, secure, reliable, and performant state.
• Identify performance improvement opportunities and implement enhancements.
• Provide technical support to application and development teams.
• 
  

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.  

Relevant experience: 2-3 years

Responsibilities:

1. Should be good at, C, C++, Linux driver development
2. Should have worked in protocol like i2S, SPI, i2C. rf, 6lowpan, Tcp / Ip stack etc..
3. Experience in porting MbedOS , FreeRTOS to different boards is good.
4. Analyzing and enhancing efficiency, stability and scalability of system resources
5. Design, develop, code, test and debug system software
6. Provide post production support
7. Interface with hardware design and development

Requirements:

1. Proven working experience in software engineering
2. Experience in hands-on development and troubleshooting on embedded targets
3. Solid programming experience in C or C++
4. Adequate knowledge of reading schematics and data sheets for components
5. Strong documentation and writing skills

Note: Self-motivated, goal oriented and good analytical skills.

Position Overview:

This position is part of highly skilled fimrware team that do software board bring up of bare silicon for next generation products. In order to write system software for embedded electronic products, this position requires academic background in electronics engineering to understand hardware concepts such as digital logic, schematics, and microprocessor communications to develop effective embedded software.

Candidate should have complete knowledge of Software development cycle from architecture definition to the implementation.

Responsibilities:

• Must wear multiple hats from analyzing field and factory reported issues to software integration.
• Be a liason for troubleshooting and debugging complex systems and identifying the root cause.
• Develop detailed design documents and customer facing application notes for the system and IOT features for Mobile routers.
• Act as a product lead and be part of bigger team in software bring up.   
• Ability to work on Low level software such as bootloaders and understanding of low level functional blocks is a must.
• Work on Linux kernel and configuration.
• Write or port device drivers for Ethernet, USB, GPIO, LED, Bluetooth, Accelormeter, LCD and touch screen.
• Debug stability issues in data routing between WAN and LAN interfaces.
• Work with Software QA with test plan and execution.
• Work with Hardware team to identify and root cause stability problems.

Experience/Requirements:  

• Demonstrable knowledge of C, C++, Assembly programming skills
• Overall 10+ years of experience in embedded environment preferabily Linux.
• Board bring up proficiency with bootloaders and other low level software, must be very good with debugging techniques.
• Experience in TCP/IP networking is must for trouble shooting throughput and other traffic issues.
• Driver experience with I2C, SPI, UART, LCD, Ethernet, PCIe is a plus.
• Experience with low level debugging using JTAG.
• Experience with Makefiles, and build environments such as PTXDIST, Yocto and Buildroot.    
• Experience with version control such as git and svn.
• Good communication skills and team player.
• Ability to work independently and autonomously to meet deadlines, in a fast-changing environment.

Education:

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)