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Network Stack Developer
Network Stack Developer

Network Stack Developer at QFocus AI · Bengaluru (Bangalore) · 9 - 17 years · ₹30L - ₹55L / yr · Bootstrapped · Posted 22 Jul 2026

QFocus AI's logo

Network Stack Developer

Vineet G's profile picture
Posted by Vineet G
9 - 17 yrs
₹30L - ₹55L / yr
Bengaluru (Bangalore)
Skills
layer 2
layer 3
roce
rdma
linux user mode
nic

About the organization

QFocus AI Pvt. Ltd. (QFAI), a wholly owned subsidiary of QFocus Technologies LLC, is a consulting-led engineering services company with sharp focus on supporting next gen advanced products development across AI/ML, Compute, Communication, Storage and Consumer Electronics. Our mission is to help our customers deliver cutting-edge products on time ensuring world-class quality.

Why Join QFAI? Join a passionate team, dedicated to making a difference.  We are a close-knit team, with a strong mission, vision and values that guide our day-to-day.  Recognition of work, respect, and our multicultural community are key aspects of the employee experience and contribute to our continued success.  Would you like to be part of our story? Don't hesitate, come and join us! 

About this opportunity – Network Stack Developer

Join our team working with an elite customer developing cutting-edge AI training/inference server infrastructure silicon. As a Network Stack Developer, you will be developing L2/L3 Protocol stack for validating AI silicon under development.

Key Responsibilities:

·      Develop, Validate and maintain highspeed L2/L3 protocol stacks over NIC drivers in Linux kernel / User mode and other Host/Device operating systems.

·      Implement and optimize L2/L3 protocols, RDMA, and RoCE for high-performance networking applications.

·      Collaborate with cross-functional teams to develop, test NIC firmware and protocol stack software, Troubleshoot and resolve NIC-related technical issues.

·      Develop and maintain test frameworks for NIC performance and functionality testing.

Required Skills:

·      Proficiency in C, C++, and Python programming languages. 

·      In-depth knowledge of networking protocols, including TCP/IP, IPv4, and IPv6 and their packet formats.

·      Hands-on experience with tools for capturing and analyzing protocol packet exchanges across high-speed interfaces.

·      Understanding of high-performance multi-core CPU/GPU clusters and their high-speed interconnect fabric interfaces such as PCIe and Infiniband.

·      Working familiarity with Host Channel Adapters (HCAs) or bridges that parse, translate and route data from standard NW stacks into fabric-specific transport logic would be an added advantage.

Desirable Skills:

·      Hands on experience developing AI training/Inference application would be valuable.

·      Python scripting for test log analysis and NIC behavior triage.

·      Experience with machine learning and deep learning frameworks and their underlying NW payload transfer.

·      Working experience with latest AI coding copilot-based flows to generate, review, test and release code.

Education:

·      Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related field with a focus on computer systems or networking.

Experience:

·      At least 6+ years of experience in L2/L3 stack development, using modern NIC device driver APIs including kernel mode and user mode drivers.

·      Experience working with high-speed cloud data center server stack development


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Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
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About QFocus AI

Founded :
2023
Type :
Services
Size :
0-20
Stage :
Bootstrapped

About

N/A

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