Software Engineer-Networking for AI

ARM LIMITED; Cambridge; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading technology company in Cambridgeshire is seeking a Senior Software Engineer specializing in Networking for AI. In this role, you will design and optimize high-performance networking software, collaborate with partners, and contribute to open-source projects. The ideal candidate is proficient in C/C++/Python, has a solid foundation in computer architecture, and thrives in a collaborative environment. This position offers a flexible hybrid working model.

Qualifications

• Proficient in C/C++/Python and scripting languages.
• Knowledgeable in computer architecture and operating systems.
• Strong grasp of data structures, algorithms, and multi-core programming.

Responsibilities

• Design, develop, and optimise high-performance networking software.
• Work closely with internal and external partners.
• Contribute to open-source projects.

Skills

C/C++/Python programming

Multicore processor architecture

Open-source software development

Problem-solving

Team collaboration

Tools

Git

Data plane networking software

Kubernetes

Job description

Job Title: Senior Software Engineer-Networking for AI

Employer: Arm Limited

Location: Cambridgeshire, United Kingdom

Employment Type: Permanent

Reference Number: 10826_7085c6586ac9ebc358bb6d0242330f39

About Arm

Arm leads in microprocessor technology, powering a global ecosystem of 1,000+ partners and 90 billion processors. Our innovations are shaping the future of computing, from AI data centres to cloud networking.

The Team & Role

Join a dynamic team developing and optimising software for Arm's next‑generation application processors. You will work with cutting‑edge technology‑often before public release‑on development platforms, software models, FPGAs, and early silicon.

Responsibilities

As a Software Engineer in the IAS Networking team, you will:

• Design, develop, and optimise high‑performance networking software on Arm platforms.
• Work closely with internal and external partners to enhance networking stacks.
• Contribute to open‑source projects by developing, upstreaming, and maintaining code.
• Adapt quickly to different layers of the networking software stack.

About You

• Skilled in C/C++/Python programming and optimisation.
• Strong foundation in multicore processor architectures.
• Experienced in contributing to open‑source software development.
• Analytical problem solver who thrives on innovation.
• Collaborative team player who enjoys learning and growing with others.

Essential Skills & Experience

• Proficient in C/C++/Python and scripting languages.
• Knowledgeable in computer architecture and operating systems.
• Strong grasp of data structures, algorithms, and multi‑core programming.
• Experienced with distributed version control systems (e.g. Git).
• Clear, effective communicator (both written and verbal).

Desirable Skills & Experience

• Familiarity with open‑source development cycles and contribution processes.
• Experience in software development on Arm, x86, or other architectures.
• Hands‑on expertise in data plane networking software and debugging.
• Background in AI networking stacks, including:
• RDMA/RoCE, libFabric
• Collective communication libraries (OpenMPI, Gloo, OneCCL, NCCL)
• PyTorch‑based inference/training applications
• Practical experience with open‑source networking projects (e.g. DPDK, VPP).
• Understanding of L2–L7 networking, I/O performance, and cloud‑native tech (Kubernetes, CNIs, service meshes).

Accommodations at Arm

At Arm, we want our people to Do Great Things. If you need support or an accommodation to Be Your Brilliant Self during the recruitment process, please email. All accommodation requests will be treated with confidentiality, and information concerning these requests will only be disclosed as necessary to provide the accommodation.

Equal Opportunities at Arm

Arm is an equal‑opportunity employer, committed to providing an environment of mutual respect where equal opportunities are available to all applicants and colleagues. We are a diverse organization of dedicated and innovative individuals, and don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Hybrid Working at Arm

Arm’s hybrid approach to working is centred around flexibility, where we split our time between the office and other locations to get our work done. Details of what this means for each role will be shared upon application.