Software Engineer - C++ GPU Performance ZooxSoftware Engineer - C++ GPU PerformanceSeattle, WA$168,000–$239,000 / yearIn this role, you will: Build real-time instrumentation for performance monitoring (CPU, GPU, latency, memory) and develop offline benchmarking frameworks, tools, and scripts to evaluate & analyze performance at scale in CI/vehicle, and establish budgets for next-gen architectures. Experience with GPU kernel development in a real-time environment, including PTX-level programming, CPU SIMD instructions (e.g., AVX intrinsics), and custom CUDA layers with frameworks like TensorRT & XLA.
Software Engineer - Network (C++) SpaceXAISoftware Engineer - Network (C++)Seattle, WA$180,000–$440,000 / yearColossus powers Grok and our frontier AI models with a custom, high-performance datacenter network that delivers ultra-low latency and massive bandwidth across hundreds of thousands of GPUs. Build tools for software development, deployment, data analysis, visualization, and testing across virtualized environments, hardware-in-the-loop setups, and live production clusters.
Staff Software Engineer, Fullstack QXOStaff Software Engineer, FullstackSeattle, Washington$160,000–$288,000 / yearFull timeQXO is North America’s largest distributor and installer of insulation, the second-largest distributor of roofing products, the second-largest publicly traded distributor of lumber and building materials, and the largest distributor of waterproofing products. You’ll collaborate across engineering, product, and design teams to build secure, reliable, and extensible services and user interfaces that serve millions of users across web and mobile platforms.
Staff Software Engineer, Data QXOStaff Software Engineer, DataSeattle, Washington$175,000–$400,000 / yearFull timeQXO is North America’s largest distributor and installer of insulation, the second-largest distributor of roofing products, the second-largest publicly traded distributor of lumber and building materials, and the largest distributor of waterproofing products. This role is critical in supporting machine learning and AI applications, ensuring a robust, well-architected, and optimized data infrastructure that powers data science and AI teams to develop high-performing models.
Senior Software Engineer, Backend QXOSenior Software Engineer, BackendSeattle, Washington$138,000–$235,000 / yearFull timeQXO is North America’s largest distributor and installer of insulation, the second-largest distributor of roofing products, the second-largest publicly traded distributor of lumber and building materials, and the largest distributor of waterproofing products. You’ll collaborate across engineering, product, and design teams to build secure, reliable, and extensible services and user interfaces that serve millions of users across web and mobile platforms.
Software Engineer, Fullstack QXOSoftware Engineer, FullstackSeattle, Washington$105,000–$200,000 / yearFull timeQXO is North America’s largest distributor and installer of insulation, the second-largest distributor of roofing products, the second-largest publicly traded distributor of lumber and building materials, and the largest distributor of waterproofing products. What you will do: As a Senior Software Engineer on the QXO eCommerce team, you will help design, build, and maintain the core services and user experiences that power our commerce platform.
NewSoftware Engineer, Data Infrastructure & Acquisition - Bellevue, WA, USA SpeechifySoftware Engineer, Data Infrastructure & Acquisition - Bellevue, WA, USABellevue, WAOver 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.
Software Design Engineer in Test IFGSoftware Design Engineer in TestRedmond, WashingtonYou will work closely with the Engine Leads, QA Lead, and Producers to create and deploy various Automated Tests, while also driving the planning, implementation, and maintenance of the automated testing infrastructure. - Role Summary: As a Mid-Level Automation Software Engineer, you will have a direct impact on the next generation of games and experiences built by The Coalition.
Senior AI Engineer QXOSenior AI EngineerSeattle, Washington$150,000–$220,000 / yearFull timeQXO is North America’s largest distributor and installer of insulation, the second-largest distributor of roofing products, the second-largest publicly traded distributor of lumber and building materials, and the largest distributor of waterproofing products. Prior work building tools or automations for Sales, Marketing, or RevOps teams (e.g., CRM-integrated apps, quoting tools, outbound tooling, marketing analytics or experimentation platforms).
Staff Software Technical Program Manager, Platform RADARStaff Software Technical Program Manager, PlatformSeattle, WA$165,000–$215,000 / yearResponsibilities: Lead programs in software development, data governance, and feature implementation through the entire SWDL, including requirements management, architectural design, proof of concept/proof of experience, engineering pilots, unit testing, scale validation, fleet deployment, and sustaining engineering. Facilitate effective ways of working among various cross-functional teams not just within software, but partner teams such as Data Science, Systems Engineering, Product Management, Customer Experience, Deployment Operations, Embedded Systems, and Hardware teams.
Senior RF Signal Processing Engineer CHAOS IndustriesSenior RF Signal Processing EngineerColumbia, Washington$180,000–$230,000 / yearCompensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses. Salary Range: $180,000 - $230,000 The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits.
Staff RF Signal Processing Engineer CHAOS IndustriesStaff RF Signal Processing EngineerColumbia, Washington$180,000–$230,000 / yearCompensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses. Salary Range: $180,000 - $230,000 The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits.
UEFI Engineer YDTS GlobalUEFI EngineerRedmond, WashingtonAs a UEFI engineer you will take customer outcomes to feature definition, platform selection, and code implementation delivering product designs that are optimized for high volume consumer products. UEFI Engineers work with electrical engineers, system engineers, architects and software engineers to determine the core firmware strategy for our product roadmaps.
Software Development Engineer - Front-End AugerSoftware Development Engineer - Front-EndBellevue, WashingtonCreate and continuously refine a unified design system, including shared components, patterns, and design tokens, that keeps visual and interaction design consistent across products while speeding up how quickly new features ship. We eliminate the Coordination Tax: the billions in capital and time lost when disconnected systems force the best people in the business to become the Human API between planning and execution.
Software Development Engineer III: 26-02238 Akraya Inc.Software Development Engineer III: 26-02238Seattle, WA$70–$74.79 / hourMost recently, we were recognized Stevie Employer of the Year 2025, SIA Best Staffing Firm to work for 2025, Inc 5000 Best Workspaces in US (2025 & 2024) and Glassdoor's Best Places to Work (2023 & 2022)! As Talent solutions provider for Fortune 100 Organizations, Akraya's industry recognitions solidify our leadership position in the IT staffing space.
AI Compiler and Performance Engineer ElastixAIAI Compiler and Performance EngineerSeattle, WashingtonAt ElastixAI, if improving inference efficiency requires inventing new quantization schemes, rethinking graph-level optimizations, or modifying the hardware ISA, we do it. In this role, you will design how LLM operations decompose into highly efficient proprietary kernel primitives, optimize execution pipelines, and co-develop abstractions with our hardware and ML teams.
Scientific Applications Engineer/DataOps Manager (Seattle or Redmond, WA) Just-Evotec BiologicsScientific Applications Engineer/DataOps Manager (Seattle or Redmond, WA)Seattle, WashingtonDevelop code and data structure definitions for integrating and visualizing data from various scientific and laboratory sources into databases and related data management systems. Strong communication and collaboration skills, a desire to learn new scientific concepts and domains, and an ability to work directly with scientific staff across multiple disciplines are also required.
Senior Game Engine Engineer, Platform Worldscape TechnologySenior Game Engine Engineer, PlatformRedmond, WashingtonWith a zero-trust security framework, seamless integration with legacy systems, and robust developer tools, Worldscape empowers rapid deployment of agentic applications that drive resilience and efficiency in sectors like logistics, telecom, defense, and infrastructure. Deliver core physics features: Collision detection (broad‑phase/narrow‑phase), entity controllers, vehicle dynamics with an emphasis on orbital mechanics, particles/fluid mechanics (with an emphasis on atmospheric dynamics), etc.
Game Engine Engineer, Platform Worldscape TechnologyGame Engine Engineer, PlatformRedmond, Washington$100,000–$130,000 / yearWith a zero-trust security framework, seamless integration with legacy systems, and robust developer tools, Worldscape empowers rapid deployment of agentic applications that drive resilience and efficiency in sectors like logistics, telecom, defense, and infrastructure. Focus on core physics features: Collision detection (broad‑phase/narrow‑phase), entity controllers, vehicle dynamics with an emphasis on orbital mechanics, particles/fluid mechanics (with an emphasis on atmospheric dynamics).
Senior Backend Engineer - AI Platform WEX Inc.Senior Backend Engineer - AI PlatformSeattle, WARemote$121,500–$145,500 / yearWe provide fleet managers and operators with advanced spend orchestration capabilities, encompassing fuel discounts and sophisticated spend controls that permit precise configuration of merchant restrictions, transaction limits, and velocity thresholds to optimize operational efficiency. Within the NAM Mobility ecosystem, our products facilitate strategic credit issuance to fleet organizations and their workforce through WEX-branded or co-branded credit instruments, accepted across a vast network of fueling stations and merchant partners.