Principal Systems Engineer

Description:

Arm is seeking a Principal Systems Engineer specializing in network interconnects for blade and rack-level systems. This position plays a key role in the design, simulation, and optimization of high-performance interconnect architectures that link compute, storage, and accelerator elements across datacenter and cloud-scale infrastructure. The role demands a strong technical foundation in networking standards and a passion for innovation in system architecture at scale.

This is a high-impact hybrid role based in Austin, TX, where you will work closely with cross-functional engineering and vendor teams to deliver next-generation rack-scale network solutions that power cutting-edge compute workloads, including AI/ML systems.

Key Responsibilities

Architecture and Design

• Define and architect rack-level network topologies (e.g., 200/400/800G Ethernet, Smart NICs, network security solutions) optimized for performance, scalability, and cost.

• Collaborate with hardware and software teams to align interconnect solutions with power, performance, and efficiency targets.

• Evaluate and select optimal network fabrics (Ethernet, InfiniBand, CXL, PCIe) based on system requirements.

• Specify and design scale-up and scale-out network architectures for large-scale systems.

Performance and Simulation

• Model and simulate network performance for rack-level systems, performing detailed bottleneck and latency analyses.

• Develop optimization strategies to enhance bandwidth, reliability, and throughput across interconnected systems.

Integration and Validation

• Collaborate with platform and board design teams to ensure robust physical and logical network integration.

• Define comprehensive test plans for networking subsystem validation and bring-up.

• Work closely with industry network vendors to ensure alignment with AI/ML system requirements and emerging features.

Standards and Compliance

• Stay current with evolving networking standards and form factors (IEEE 802.3, OCP NIC, OSFP, QSFP-DD).

• Contribute to the creation of internal compliance and design guidelines for networking hardware.

Cross-Functional Collaboration

• Partner with firmware, software, and datacenter infrastructure teams to ensure end-to-end functionality across system layers.

• Collaborate with ODMs, ISVs, and technology partners for product roadmap alignment and issue resolution.

Qualifications

Required:

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, or related field.

• 5+ years of hands-on experience in systems or network engineering within datacenter, cloud, or HPC environments.

• Strong knowledge of rack-level networking topologies and high-speed interconnects.

• Expertise in Ethernet and/or InfiniBand technologies, including experience with QSFP/OSFP modules and switching.

• Understanding of Layer 1–3 protocols and performance optimization.

• Proficiency with simulation and performance analysis tools.

Preferred:

• Experience with CXL, NVLink, or PCIe-based interconnects.

• Familiarity with Open Compute Project (OCP) hardware and standards.

• Exposure to thermal and power modeling of networking components.

• Scripting proficiency (Python, Bash) for automation and data analysis.

Why Join Arm

• Work on innovative rack-scale systems powering next-generation computing workloads.

• Collaborate with global experts in hardware, networking, and system design.

• Competitive compensation and world-class benefits.

• Opportunities for career advancement, professional learning, and innovation.

Compensation

• Base Salary: $297,600 – $402,600 per year (depending on experience and location).

• Additional Benefits: Comprehensive health coverage, equity programs, paid leave, and performance bonuses.

• The full total rewards package will be shared during the recruitment process.

Hybrid Work Policy

Arm supports a flexible hybrid work model promoting both high performance and personal wellbeing. Employees typically spend a minimum of two days per week in the office, depending on team needs and project requirements.

Equal Opportunity Statement

Arm is proud to be an Equal Opportunity Employer, committed to creating an inclusive environment where individuals of all backgrounds can thrive. We celebrate diversity and do not discriminate based on race, gender, religion, disability, or veteran status.