Knowledge Systems Engineer - Fusion Systems HelionKnowledge Systems Engineer - Fusion SystemsEverett, WashingtonSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. You’ll work directly with engineers and operators to turn fragmented, implicit, and fast-changing knowledge into something durable, searchable, and actionable.
Machine Learning Engineer ElastixAIMachine Learning EngineerSeattle, WashingtonYou will be responsible for designing and developing critical components, including ML model deployment, innovative model optimization pipelines, and performance benchmarking and simulation workflows. This is a highly interdisciplinary role where you'll collaborate closely with our multi-disciplinary team to ensure our entire stack works in harmony to deliver optimal AI inference solutions.
Senior Full-Stack WebApp Engineer LevelSenior Full-Stack WebApp EngineerSeattle, WashingtonYou will architect and ship features that span TypeScript front-ends (React-family) and Kotlin/Java (JVM) backend services, partner with engineers across web, mobile, and native clients, and help raise the engineering bar on a small, senior-leaning team. As a Senior Full-Stack WebApp Engineer on the Platform team, you will own end-to-end slices of Level's web experience — from the browser through the API layer and into the services that power identity, accounts, onboarding, and the authoring/admin surfaces our internal teams rely on.
Security Engineer, Application Security OpenAISecurity Engineer, Application SecuritySeattle, WashingtonFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. As a Security Engineer, Application Security you will be responsible for identifying and mitigating security vulnerabilities within software applications through building security tools, code reviews, penetration testing, and security assessments.
Principal Operations Systems Engineer HelionPrincipal Operations Systems EngineerEverett, WASince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. You will work at the intersection of Manufacturing, Supply Chain, Engineering, Factory Automation, and Software Engineering to solve complex operational problems that directly impact Helion's ability to scale.
Fuel Cycle Operations Engineer HelionFuel Cycle Operations EngineerEverett, WASince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Collaborate with our design teams to validate scalable fuel cycle processes through hands-on R&D activities, including system buildout, experimental testing and data analysis.
Junior Engineer Blueprint HiresJunior EngineerSeattle, WA2-5 years of relevant construction or related field experience in roofing, waterproofing, glazing installation, lab or field testing, or related building envelope systems. A multi-disciplinary architectural, engineering and construction firm is seeking a Junior Engineer, to help them build a better future by bringing your technical expertise to their Seattle, WA office.
Full Stack Engineer Rainier RecruitingFull Stack EngineerSeattle, WashingtonNamed the #1 Best Workplace in Washington State in 2022, recognized as a ClearlyRated Best of Staffing firm, and identified as a top recruitment firm by multiple business journals, Rainier Recruiting is fast becoming a respected company. We are building something that has not existed before, and we are a small, senior team (currently ~15, growing to ~28 by year-end), backed by one of the world's largest consumer companies.
Process Engineer II - Downstream - Site Based, Redmond, WA CyprotexProcess Engineer II - Downstream - Site Based, Redmond, WARedmond, WashingtonThe role reports to Downstream Lead for site MSAT, and is responsible to support all aspects of downstream processing for multiple clinical-scale cGMP manufacturing trains employing the innovative Just-Evotec continuous processing platform in 24/7 operations. Masters (or Bachelors) degree in Engineering with 2+ (5+) years of pharmaceutical/biotech experience including a minimum of 2-4 years of supporting downstream purification activities for biopharmaceutical products.
Senior Propulsion Engineer Stoke SpaceSenior Propulsion EngineerKent, WA$151,305–$252,105 / yearAs a Senior Engines Design Engineer, you will have extreme ownership over all aspects of a components design, analysis, manufacturing, testing, and validation for an advanced reusable rocket engine (components like thrust chambers, reentry heat shields, injectors, turbomachinery, actuators, ignitors, etc). Experience in designing, analyzing, and testing rocket engine components; thrust chambers, regenerative cooling channels and heatshields, injectors, turbomachinery, actuators, ignitors, gimbals, feed systems, engine layouts, etc.
Turbomachinery Engineer Stoke SpaceTurbomachinery EngineerKent, WA$129,150–$193,620 / yearTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. As a Turbomachinery Engineer at Stoke, you will have extreme ownership over all aspects of turbomachinery design, analysis, manufacturing, build, testing, and validation for advanced reusable rocket engines.
Sr Engineer, Enterprise AI T-MobileSr Engineer, Enterprise AIBellevue, WashingtonThis role focuses on developing enterprise-grade AI solutions using Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and agentic AI frameworks integrated with internal systems and workflows. The Senior Engineer, Enterprise AI helps design, build, and scale AI-powered applications and platforms that improve productivity and intelligent decision-making across T-Mobile’s enterprise environment.
Senior Materials Engineer, Diagnostics HelionSenior Materials Engineer, DiagnosticsEverett, WASince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. You will work cross-functionally with Materials, Research, and Engineering teams to translate failure modes into measurable signals and integrate diagnostics into hardware and predictive models.
Member of Technical Staff, Hardware Reliability Engineer LumotiveMember of Technical Staff, Hardware Reliability EngineerRedmond, WashingtonLumotive’s Light Control Metasurface (LCM) beam forming chips can be programmed to function as a beam steering mirror, a lens, mirror, a beam splitter—or any optical function—replacing bulky and mechanical optical components with a fully digital, reconfigurable semiconductor. Responsibilities: Develop, set up, and execute reliability test plans for lidar modules and systems, including environmental stress tests (temperature cycling, thermal shock, humidity), accelerated life testing, and mechanical shock/vibration.
Senior Electrical Simulation Engineer HelionSenior Electrical Simulation EngineerEverett, WashingtonSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. As a Senior Electrical Simulation Engineer focused on simulation, you will develop and validate detailed circuit and system models that guide design decisions and ensure the safe, stable operation of our fusion systems.
Senior Test Engineer HelionSenior Test EngineerEverett, WashingtonSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. As a Test Engineer at Helion, you will be responsible for designing, building, and sustaining the electrical test systems that validate PCBAs, power electronics, and high-voltage assemblies used across our fusion generators.
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.
Senior Electrical Engineer, Hardware In The Loop HelionSenior Electrical Engineer, Hardware In The LoopEverett, WAWhat You Will Be Doing: As an Senior Electrical Engineer focused on Hardware-in-the-Loop (HIL), you will design, build, and automate test platforms that allow us to validate our hardware, firmware, and software together in realistic, integrated environments. Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward.
Senior Software Engineer, Full Stack HelionSenior Software Engineer, Full StackEverett, WashingtonYou will design, develop, and operate secure, reliable, scalable, and delightfully usable full-stack applications to optimize processes between mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance, integrating with our internal data platform and external systems. Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward.
Senior Electrical Engineer, Hardware in the Loop HelionSenior Electrical Engineer, Hardware in the LoopEverett, WashingtonSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. As an Senior Electrical Engineer focused on Hardware-in-the-Loop (HIL), you will design, build, and automate test platforms that allow us to validate our hardware, firmware, and software together in realistic, integrated environments.