Senior Linux Developer

Engineering - Cranberry Township, Pennsylvania
Posting Date
Jul 11, 2018
Cranberry Township, Pennsylvania
Job ID


Sophos makes IT security simple with next-generation solutions that protect networks, servers, and devices, wherever they are. Today, more than 100 million users in 150 countries and a global network of channel partners trust Sophos to deliver simple solutions to complex security challenges. Focused on innovation and backed by a global network of Sophos Labs threat intelligence centers and industry-leading support, Sophos delivers solutions that are simple to deploy, maintain, and manage, enabling organizations to focus on performance and growth. Sophos is cybersecurity made simple.


Main Duties

We are looking for Senior Linux Developers to join our Network Security Group in Cranberry Township, PA. Sophos NSG develops industry leading Firewall, SG UTM, Secure Wi-Fi, and Secure Web Gateway products.

Experience and Skills

  • Very strong C programming skills a must

  • Team Player with can do attitude/initiative

  • Passion for software engineering and coding with proven ability to test/debug own code

  • Experience with Agile Software Development methodologies

  • Ability to work well with team of senior and junior engineers in a dynamic, fast paced environment

  • Experience with embedded software and/or kernel software development

  • Knowledge of Linux system-level programming and operating system internals

  • Experience in Linux multi-process and multi-threaded user space and/or kernel programming on x86

  • Strong knowledge of layer 2/3/4 networking protocols, concepts.  Proven experience debugging networking issues.  Working experience on data plane forwarding a plus.

  • Experience with networking hardware, hardware bringup/configuration, and/or security appliances a plus

  • Detailed knowledge of TCP protocol a strong advantage

  • Desired – SSL, IPSec and cryptography knowledge

  • Ability to make appropriate design choices to maximize performance and scalability system requirements

  • Desired experience with:

  • Linux user space packet delivery technologies, DPDK, netmap, xdp, etc

  • Internals of Linux Kernel core networking stack, Netfilter, and/or netdev drivers

  • Snort and/or other IPS/IDS packet processing technologies

  • ARM in addition to x86

  • Automation of test code. Scripting skills with Bash, Python, and/or Java.

  • B.S./M.S Degree in Computer Science or equivalent


In most cases, the compensation package includes:

  • Medical insurance
  • Dental insurance
  • Vision insurance
  • Life insurance
  • Long-term disability insurance
  • 401k plan
  • Vacation time
  • Gym membership compensation

Special How to Apply Instructions

To apply, please send resume to:

If you choose to explore this opportunity, and subsequently share your CV or other personal details with Sophos, these details will be held by Sophos for 12 months in accordance with our Employee Data Protection Policy which can be found here, and used by our recruitment team to contact you regarding this or other relevant opportunities at Sophos. If you would like Sophos to delete or update your details at any time, please reply to this or other emails from Sophos clearly stating your request, or follow the steps set out in the Group Privacy Policy describing your individual rights. If you have any questions about Sophos’ data protection practices please see our Group Privacy Policy and contact information here.

Posting Date
Jul 11, 2018
Cranberry Township, Pennsylvania
Job ID