Principal Software Engineer - C, Networking, Unix

Req ID: R34022

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Principal Software Engineer - C, Networking, Unix

  • Bangalore, Karnataka, India
  • Full_time

Citrix builds the secure digital workspace technology that frees 400,000 customers to do their very best work from anywhere. By joining our award-winning workplace, you’ll be included in the globally diverse, collaborative team that values work-life balance. Come see why Fortune named us one of the 100 Best Companies to Work For®. Let’s innovate and grow together!

What we're looking for:

Position Summary

We believe work is not a place, but rather a thing you do. Our technology revolves around this core philosophy. We are relentlessly committed to helping people work and play from anywhere, on any device. Innovation, creativity and a passion for ever-improving performance drive our company and our people forward. We empower the original mobile device:  YOU!

You will join a team of experienced and talented software engineers based in Bangalore, India, with years of history delivering high-quality carrier and enterprise grade products, in a fast-paced business environment, and will have the potential to collaborate with fellow engineering teams across the globe.

The Citrix NetScaler is the Citrix solution for load balancing and content switching, application offloading, attack protection, application firewalling and more. It enables the datacenter network to become an end-to-end service delivery fabric to optimize the delivery of all web applications, cloud-based services, virtual desktops, enterprise business apps and mobile services.

The Principal Software Engineer will envision, design, develop, automate, test and maintain platform SW for NetScaler high performance physical, virtual and cloud platforms. Work includes developing Ethernet device drivers for both physical and virtual NICs and infrastructure components for Integrating NetScaler to Public and Private clouds.


  • End to end product development of platform software including Requirement analysis, Design, develop, automation and testing.
  • Troubleshoot, support customer escalations and deployments.

Qualifications and Requirements

The position requires 12 -15 years of related work experience in Platform software development with BE/ME Degree.

Essential requirements

  • BE/ME in Computer Science or related discipline
  • Prior experience in Network device drivers/system programming is a must.
  • Expert in  C/C++ programming languages
  • Should have excellent debugging skills
  • Good working knowledge on Python programming language.
  • Good understanding of Ethernet controller concepts like DMA, RSS, PCIe, SRIOV, VMDQ, Para virtualization drivers etc.
  • Good understanding on virtualization technologies are must
  • Good understanding of cloud technologies like ELB/ALB, AutoScale etc.
  • Good working knowledge on Python programming language.
  • Good understanding on Layer 2 technologies.
  • Good Computer Science background – Architecture, Algorithms, Data structures. 
  • Working knowledge on automation.
  • Working knowledge of TCP/IP networking.
  • Good analytical and problem-solving skills. 
  • Good written and verbal communication skills. 
  • Ability to work collaboratively (local and remote) with other engineers.
  • Energetic, self-motivated individual with an ability to prioritize tasks.

Functional Area:

Software Development

What you’re looking for:

Everyone is welcome at Citrix. We prioritize diversity, equity, inclusion, and a culture of belonging, and celebrate bringing our courageous, authentic selves to work. We believe this way of working helps us innovate, and it’s just one of the reasons why our employees continuously recognize Citrix as a great place to work.

Citrix helps make work more sustainable to benefit the planet, our business, and our communities. For more than 30 years, we have empowered individuals and organizations to work remotely or work from anywhere, reducing commuting emissions and energy consumption in the process. 

We are the #1 leader in Virtual Client Computing (VCC) and #2 in the Application Delivery Controller (ADC) space, and we have key partnerships with top cloud providers. We’ll give you the tools, learning opportunities, mentorship, and flexibility to achieve your goals. Come see why you belong at Citrix, with our culture supporting purposeful innovation and growth from within. 

The Benefits

We offer a competitive total rewards package* that includes:

  • 18 weeks of paid parental leave
  • Health and wellness benefits
  • Employee assistance program
  • Retirement benefits
  • Time off and absence programs
  • Professional development and mentorship opportunities
  • Paid volunteer time and charitable matching of employee donations
  • Employee resource groups
  • And more!

**Please note that benefits may vary based on location.

Citrix Systems, Inc. is firmly committed to Equal Employment Opportunity (EEO) and to compliance with all federal, state and local laws that prohibit employment discrimination on the basis of age, race, color, gender, sexual orientation, gender identity, ethnicity, national origin, citizenship, religion, genetic carrier status, disability, pregnancy, childbirth or related medical conditions, marital status, protected veteran status and other protected classifications.

Citrix uses applicant information consistent with the Citrix Recruitment Policy Notice at

Citrix welcomes and encourages applications from people with disabilities. Reasonable accommodations are available on request for candidates taking part in all aspects of the selection process. If you are an individual with a disability and require a reasonable accommodation to complete any part of the job application process, please contact us at (877) 924-8749 or email us at for assistance.

At this time, we are requiring personnel entering a Citrix office, traveling for business or attending a Citrix event to be fully vaccinated against COVID-19. If you choose to remain unvaccinated based on a specific medical need or a sincerely held religious belief and need to access our offices, Citrix will work with you to provide you with reasonable accommodation where possible. Learn more about our COVID-19 policies.

By applying, you are giving Citrix consent to be considered for future openings of other roles of similar qualifications.

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