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You'll design and operate the global network and reliability layer behind one of the world's fastest private supercomputers — the fabric powering distributed compute, ML workloads, real-time analytics, and mission-critical enterprise systems. Extensive hands-on experience with network devices (firewalls, switches, load balancers) and large-scale architectures and protocols — BGP, QoS, MPLS, and IPsec VPNs.

Alembic

Senior Network & Site Reliability Engineer

We’re backed by Fifty Years (Scott Phoenix), BoxGroup, SV Angel, Betaworks, Pace Capital, angels including Nat Friedman, Logan Kilpatrick (Google AI), Guillermo Rauch (Vercel) and others from Tesla AI, Physical Intelligence, and Markforged. We’re hiring an Electrical Engineer to join our electrical team that owns the entire electrical stack across current and next-gen robot versions; including PCB design, bring-up, debugging, and electrical architecture.

Bracket Bot

Electrical Engineer

Our team brings together founders from Oculus and Ubiquity6, alongside proven leaders from Meta, Google, and Apple, with deep expertise spanning hardware and software. Partner with ML infrastructure and training engineers to build a fast, cost-effective, accurate, and reliable serving layer to power a new consumer product category.

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Sesame

ML Model Serving Engineer

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This role focuses on delivering clean energy projects, improving efficiency, and supporting sustainability goals. Job Description: MastarRec is hiring a Renewable Energy Engineer to support renewable and sustainable energy initiatives across the United States.

MastarRec

Senior Renewable Energy Engineer

Backed by multi-million-dollar funding and direct sponsorship from AMD with hands-on support from AMD engineers the team is scaling rapidly to build the full stack powering frontier AI models and real-time applications. You’ll gain hands-on experience with performance engineering, learn how large AI models are optimized and deployed at scale, and collaborate closely with ML researchers and experienced systems engineers.

Sciforium

Software Engineer, Fullstack

Shape net-new products from ideation through delivery: as Imprint expands into new financial products and a deeper rewards platform, youll define technical approaches for systems that dont exist yet while evolving the ones that do. We combine advanced payments infrastructure, intelligent underwriting, and deep customer data to create delightful and personalized experiences for members as well as efficient and profitable relationships for our brand partners.

Imprint Payments Inc

Staff Software Engineer

This team plays a critical role in building secure, reliable, and intuitive APIs and SDKs that power robotics applications across industries from restaurants and hotels to warehouses and factories. Work closely with robotics, infrastructure, and product teams to translate low-level hardware functions into developer-friendly APIs.

Right Hire Consulting

Sr. Software Engineer

Every role at Eight Sleep is a chance to create cutting-edge technology, collaborate with world-class talent, and help shape a future where sleep isn’t passive - it’s a powerful tool for living better. This includes periodic equity refreshments based on performance, ensuring that as Eight Sleep grows and succeeds, so do you – perfectly aligning your achievements with the broader triumphs of the company.

Eight Sleep

Senior Software Engineer - Mobile (iOS)

About the Role Were looking for a Senior Full-Stack Engineer to design and deliver high-impact product features and backend services that turn complex GTM data into actionable insights. You'll build intuitive user interfaces in React/TypeScript and robust APIs with Python FastAPI/GraphQL, powering seamless agent workflows.

Sr. Full Stack Engineer

Hard problems with real impact: You'll tackle the hardest challenges in marketing analytics while building systems that influence multimillion-dollar decisions at Fortune 100 companies. This role is ideal for someone who wants to apply deep technical expertise to real-world problems-shipping code that makes a difference, not just publishing papers.

Research Engineer - Causal AI

Additionally, all open positions are published only through our official careers platform, Ashby .If you are contacted by anyone claiming to represent Air Apps from a different email domain, through a recruiting agency, or via a job posting source other than Ashby, please exercise caution. As a Data Engineer at Air Apps, you will be responsible for designing, building, and optimizing data pipelines, data warehouses, and data lakes to ensure efficient data processing and analytics.

Air Apps

Data Engineer

Bonus points for MLOps platforms and automated model lifecycle management, cloud-native ML architectures and distributed training, responsible AI and model governance, and leading technical initiatives across multiple teams. With a mission to entertain, inspire, and create significant social impact, Beast Industries operates across various domains including digital media, philanthropy, consumer products, and innovative business initiatives.

MrBeast

Senior Machine Learning Engineer

They design, architect, and implement controls solutions across a range of automation projects — from automated storage and retrieval systems (ASRS) and robotics to conveyance, sortation, and material handling systems. Create robust programs and sequences to control complex, multi-station machinery to perform processes such as material pick and place, sortation, conveyance, storage/retrieval, and material transport.

Boxbot

Senior Controls Engineer

Bonus points for building and maintaining design systems, modern frameworks like React, Vue, or Angular, cloud-native environments and CI/CD, and a track record of leading technical initiatives across teams. Deep Frontend Builder: Typically 8+ years in software engineering with serious frontend depth, building modern web apps in JavaScript and TypeScript and maintaining scalable architectures in production.

Senior Frontend Engineer

Advanced Debugging: Troubleshoot complex interactions involving GPUs, compilers, ML frameworks, and distributed training runtimes (e.g., vLLM compilation failures, CUDA memory leaks, ROCm kernel crashes). Backed by multi-million-dollar funding and direct sponsorship from AMD with hands-on support from AMD engineers the team is scaling rapidly to build the full stack powering frontier AI models and real-time applications.

Senior HPC & GPU Infrastructure Engineer

The salary estimate provided represents the typical salary range for the position, and other factors may be used to determine the successful candidate's actual salary, including: skill set, experience, training, education, organizational needs, internal equity, market data, and geographic zone. With solutions to ensure the efficient use of frequencies, long distance communications, monitoring and security communications intelligence applications, we improve communications and protect military forces and infrastructure around the world.

About SPX SPX Corporation is a Fortune 500 multi-industry manufacturing leader. The company offers highly-specialized engineered solutions to solve critical problems for customers. SPX is focused on providing solutions that support the expansion of global infrastructure, with particular emphasis on the growing worldwide demand for energy and power. Its innovative product portfolio, containing many energy efficient products, includes cooling systems for power plants throughout the world; custom engineered process equipment that assists a variety of flow processes including food and beverage manufacturing, oil and gas exploration, distribution and refinement and power generation; handheld diagnostic tools that aid in vehicle maintenance and repair; and power transformers that regulate voltage for electrical transmission and distribution by utility companies. SPX is headquartered in Charlotte, North Carolina and has employees in more than 40 countries worldwide. Our People The SPX team is made up of individuals with a clear sense of urgency. We aim to build a team of people who can inspire and invigorate associates at all levels. We value diversity and seek those who are smart, multidimensional, global thinkers. SPX is highly focused on doing everything simpler, better and faster for preemptive advantage. Excellent communication skills are of utmost importance and we make it our practice to candidly share and actively listen to new ideas.

SPX Corporation

Quality Engineer

We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Collaborate with Product Line Management and R&D Management to generate development schedules that achieve key project milestones, NPI deliverables, business requirements, and customer satisfaction.

Coherent Corp

Senior Principal Optoelectronics Engineer

In this role, you will drive the development of high-impact web interfaces that integrate with our flight safety platform, enabling users to interact with complex aviation data and derive actionable insights. Backed by top investors, we’ve secured a dozen Department of Defense contracts and partnered with major airlines to deliver mission-critical systems.

Beacon AI

Staff Software Engineer, Frontend/Web App

We're looking for strong CV/ML engineers with good product judgment who are comfortable both designing solutions and doing the hands-on work to ship them. Strong CV + deep learning background — you've trained and shipped models (segmentation, detection, document AI, or vision-language).

Bobyard

Computer Vision Research Engineer

Salary Range : The compensation range for this position is specific to the locations listed below and is the range Lucid reasonably and in good faith expects to pay for the position taking into account the wide variety of factors that are considered in making compensation decisions, including job-related knowledge; skillset; experience, education and training; certifications; and other relevant business and organizational factors. Perform hands-on testing and troubleshooting using lab equipment (battery simulators, power supplies, E-loads, oscilloscopes, current probes, power analyzers, thermal chambers, DAQ systems).

Lucid Motors Company Overview 
Lucid Motors is a luxury mobility company that is reimagining what a car can be. We are applying innovative engineering, design, and technology to define a new class of vehicle. Lucid is developing products and services for the new world of experiential, on-demand, and sustainable luxury, with the Lucid Air premium sedan as its first platform. Headquartered in Menlo Park, California, in the heart of Silicon Valley, the Lucid team brings deep expertise from the automotive and technology industries.
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Join us in defining new mobility experiences in the rapidly changing transportation landscape. Be part of a team determined to produce exceptional products that are advancing the fields of engineering, technology, and design.
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Performance Engineer Jobs in Walnut Creek, CA

Senior Network & Site Reliability Engineer Alembic

Electrical Engineer Bracket Bot

ML Model Serving Engineer Sesame

Senior Renewable Energy Engineer MastarRec

Software Engineer, Fullstack Sciforium

Staff Software Engineer Imprint Payments Inc

Sr. Software Engineer Right Hire Consulting

Senior Software Engineer - Mobile (iOS) Eight Sleep

Sr. Full Stack Engineer Right Hire Consulting

Research Engineer - Causal AI Alembic

Data Engineer Air Apps

Senior Machine Learning Engineer MrBeast

Senior Controls Engineer Boxbot

Senior Frontend Engineer MrBeast

Senior HPC & GPU Infrastructure Engineer Sciforium

Quality Engineer SPX Corporation

Senior Principal Optoelectronics Engineer Coherent Corp

Staff Software Engineer, Frontend/Web App Beacon AI

Computer Vision Research Engineer Bobyard

Test Engineer, Power Electronics Test & Validation Lucid Motors

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