EMBEDDED NETWORKING SOFTWARE ENGINEER

What you'll be doing:As part of the launch of new strategic projects, we are strengthening our Software Networking team. You will join a small, dynamic group of 6 people, based in France, responsible for developing networking software solutions that span the entire stack, from hardware-level drivers to cloud-scale virtual switching. Your main responsibilities will include: Leading and contributing to:
· Design, develop, and optimize networking software for our cutting-edge DPU platform.
· Create and maintain low-level software, including MAC/PHY drivers and packet forwarding engine firmware.
· Develop and enhance Linux kernel drivers to support network offloads and hardware acceleration features.
· Implement and optimize data plane solutions utilizing the Data Plane Development Kit (DPDK) and Open vSwitch (OVS).
· Build and maintain robust, scalable, and automated test frameworks using Python to ensure software quality and performance.
· Collaborate closely with hardware and system architecture teams to define requirements, design software interfaces, and debug complex, system-level issues.
· Profile and analyze system performance to identify and resolve software bottlenecks. What we're looking for:Technical

skills:
· Strong proficiency in C programming and experience with large-scale software development.
· Solid experience with Linux kernel development, device drivers, or similar low-level programming.
· Proficiency in Python for scripting, automation, and test framework development.
· Good understanding of fundamental networking concepts, including TCP/IP, Ethernet, network protocols and packet forwarding techniques. Nice to have
· Hands-on experience with the Data Plane Development Kit (DPDK) framework.
· Familiarity with Open vSwitch (OVS) architecture and hardware offload mechanisms.
· Experience with low-level hardware interfaces, such as MAC/PHY components.
· Knowledge of virtualization technologies like SR-IOV and KVM.
· Experience with performance tuning and optimization of networking data planes. Profile :
· Master's degree or PhD in Computer Science, Computer Engineering, or a related technical field.
· At least 3 years of experience in embedded software engineering.
· Excellent analytical and problem-solving abilities.
· Strong communication skills and ability to work effectively in a collaborative team environment.
· A proactive and self-motivated approach with a strong sense of ownership.
· Passion for learning new technologies and tackling complex engineering challenges. Of course, you might not have all of those required skills But feel free to apply anyway and explain to us why you believe you are the right person for the job. Contract Information:
· Type of contract: Permanent contract
· Starting date: As soon as possible
·

Location:
Montbonnot (38) or Sophia Antipolis (near Nice) What we can offer you:
· Competitive salary & performance-based RSU (free shares)
· Hybrid work model
· Additional paid leave (RTT)
· Meal vouchers (Edenred)
· Premium health coverage (Malakoff Humanis)
· Sustainable mobility incentives
· Generous paternity leave
· Monthly team activities (laser game, hiking, sailing, karaoke…) and large-scale company events About the recruitment process:
· First interview with the line manager
· Second interview with the team
· Final interview with HRD or CEO Equal Opportunity Statement:KALRAY is committed to creating a diverse and inclusive environment, and we welcome applications from individuals of all backgrounds, identities, and experiences. We do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, skin color, national origin, gender, sexual orientation, age, marital status, disability status, or any other characteristic protected by law. Should you require any accommodations or adjustments throughout the interview process and beyond, please do not hesitate to let us know. We are committed to ensuring that all candidates have an equal opportunity to showcase their abilities and succeed in our organization.