Senior Software Engineer - SAI/SDK
Company: Cornelis Networks, Inc.
Location: Austin
Posted on: April 4, 2026
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Job Description:
Cornelis Networks delivers the world’s highest performance
scale-out networking solutions for AI and HPC datacenters. Our
differentiated architecture seamlessly integrates hardware,
software and system level technologies to maximize the efficiency
of GPU, CPU and accelerator-based compute clusters at any scale.
Our solutions drive breakthroughs in AI & HPC workloads, empowering
our customers to push the boundaries of innovation. Backed by
top-tier venture capital and strategic investors, we are committed
to innovation, performance and scalability - solving the world’s
most demanding computational challenges with our next-generation
networking solutions. We are a fast-growing, forward-thinking team
of architects, engineers, and business professionals with a proven
track record of building successful products and companies. As a
global organization, our team spans multiple U.S. states and six
countries, and we continue to expand with exceptional talent in
onsite, hybrid, and fully remote roles. Join Cornelis Networks'
growing SAI/SDK team to drive the development of our
next-generation switch ASIC platform. Partner with our Principal
Engineer on architecture and implementation, taking ownership of
key subsystems to accelerate product delivery. This role combines
deep technical work on Switch Abstraction Interface (SAI) and SDK
implementation with test infrastructure development, supporting
both traditional Ethernet and high-speed interconnect protocols.
You'll work in an AI-first development environment, leveraging
cutting-edge tooling to maximize productivity and impact. This
position offers the opportunity to work on cutting-edge switch ASIC
technology in a fast-paced, innovation-driven environment. You'll
have significant technical ownership, collaborate with world-class
engineers, and contribute to products that power high-performance
computing and AI infrastructure. Cornelis Networks is committed to
AI-first development practices, providing engineers with the best
tools and workflows to maximize impact and career growth. Key
Responsibilities SAI Implementation: Design and implement SAI
object types and APIs for switch ASIC platforms, supporting
multiple operational modes and architectures SDK Development:
Develop and maintain switch SDK components, including low-level
ASIC drivers, control plane interfaces, and hardware abstraction
layers NOS Integration: Integrate SAI/SDK with SONiC and other
network operating system platforms, ensuring seamless
interoperability Test Infrastructure: Build and maintain test
frameworks, harnesses, and CI/CD pipelines for SAI/SDK validation;
write comprehensive unit and integration tests Performance
Optimization: Profile and optimize SAI/SDK performance for latency,
throughput, and resource utilization Technical Collaboration: Work
closely with hardware, firmware, and systems teams to define ASIC
requirements and resolve integration issues Code Quality: Conduct
code reviews, mentor junior engineers, and establish best practices
for SAI/SDK development AI-First Development: Leverage AI coding
assistants and emerging tooling to accelerate development velocity
and code quality Minimum Qualifications BS in Computer Science,
Computer Engineering, or related field 7-10 years of software
engineering experience Strong proficiency in C/C++ with deep
understanding of systems programming Hands-on experience with
switch ASIC/SDK development (Broadcom, Marvell, Intel, or similar
platforms) Linux systems programming experience, including kernel
interfaces and driver development Strong debugging and
problem-solving skills for complex hardware/software integration
issues Excellent communication and collaboration skills Commitment
to AI-first development practices and continuous learning of
emerging AI tooling Preferred Qualifications SAI (Switch
Abstraction Interface) implementation experience SONiC or other
network operating system platform integration experience Network
protocol implementation experience (L2/L3 switching, routing)
High-speed interconnect protocol knowledge Hardware/ASIC
architecture understanding Performance optimization and profiling
experience (perf, gprof, valgrind, etc.) Open-source contribution
history Technical leadership and mentoring experience Experience
with AI-assisted development tools (GitHub Copilot, Cursor, or
similar) Familiarity with test automation frameworks and CI/CD
systems Location: This is a remote position for employees residing
within the United States. We offer a competitive compensation
package that includes equity, cash, and incentives, along with
health and retirement benefits. Our dynamic, flexible work
environment provides the opportunity to collaborate with some of
the most influential names in the semiconductor industry. At
Cornelis Networks your base salary is only one component of your
comprehensive total rewards package. Your base pay will be
determined by factors such as your skills, qualifications,
experience, and location relative to the hiring range for the
position. Depending on your role, you may also be eligible for
performance-based incentives, including an annual bonus or sales
incentives. In addition to your base pay, you’ll have access to a
broad range of benefits, including medical, dental, and vision
coverage, as well as disability and life insurance, a dependent
care flexible spending account, accidental injury insurance, and
pet insurance. We also offer generous paid holidays, 401(k) with
company match, and Open Time Off (OTO) for regular full-time exempt
employees. Other paid time off benefits include sick time, bonding
leave, and pregnancy disability leave. Cornelis Networks does not
accept unsolicited resumes from headhunters, recruitment agencies,
or fee-based recruitment services. Cornelis Networks is an equal
opportunity employer, and all qualified applicants will receive
consideration for employment without regard to race, color,
religion, sex, sexual orientation, gender identity or expression,
pregnancy, age, national origin, disability status, genetic
information, protected veteran status, or any other characteristic
protected by law. We encourage applications from all qualified
candidates and will accommodate applicants’ needs under the
respective laws throughout all stages of the recruitment and
selection process.
Keywords: Cornelis Networks, Inc., Round Rock , Senior Software Engineer - SAI/SDK, Engineering , Austin, Texas
