Sr. Principal Engineer, Scale-Up (Data Path Features)

Upscale, Inc.
United States
On-site

Who this role is best for

Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Design and implement high-performance data path features
  • Optimize system performance for AI workloads
Typical background
Experience in backend software engineeringStrong understanding of computer architecture and networking

Skills & requirements

Required

C++PythonLinuxNetworkingPerformance TuningDistributed Systems

Preferred

CUDATensorFlowKubernetes

Stack & domain

High-performance InfrastructureAI WorkloadsSiliconSystemsNetworkingPerformanceScaleExecutionFirst-principles EngineeringAIDataTechOwnershipTechnical RigorSpeedProblem-solvingCollaborationCommunicationArtificial IntelligenceInfrastructure

About the role

Original posting from Upscale, Inc. via Lever

Why join Upscale, Inc. 

Upscale, Inc., is building the high-performance infrastructure powering the next generation of artificial intelligence. Backed by over $500M in funding and rapid global adoption, we are scaling systems designed for the world’s most demanding AI workloads.

We focus on first-principles engineering across silicon, systems, and networking—where performance, scale, and execution are critical. Our team is talent-dense and high-performing. We value ownership, technical rigor, and speed, and we offer the opportunity to work on foundational problems with immediate, real-world impact.

If you’re looking to do high-impact work, move fast, and help define the infrastructure behind the future of AI—Upscale is where you can produce meaningful work at the frontier—and operate at a high standard. 

Where you fall within that range depends on your experience, skills, and impact—we benchmark against internal levels to keep things fair and consistent.

Equal Opportunity

Upscale, Inc., is building a team that reflects a wide range of perspectives, backgrounds, and experiences. We’re proud to be an Equal Opportunity Employer and consider all qualified applicants regardless of race, color, religion, national origin, sex, sexual orientation, gender identity, disability, or veteran status.

Accessibility & Accommodations

We’re committed to making our hiring process accessible to everyone. If you need accommodations at any stage, just reach out to us at hiring@upscaleai.com—we’re happy to help. Note: This inbox is only for accommodation requests.

Source: Upscale, Inc. careers (Lever)

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