Senior Software Engineer, Cybersecurity HelionSenior Software Engineer, CybersecurityEverett, 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 closely with firmware, software, and infrastructure engineers to embed security into every stage of the development lifecycle—reviewing designs, auditing code and dependencies, and integrating security checks into CI/CD pipelines.
Senior Software Engineer - UI AIMSenior Software Engineer - UISeattle, WashingtonYou're equally comfortable architecting a component library API, debugging a real-time WebSocket pipeline pushing protobuf telemetry, optimizing a Three.js scene rendering live LiDAR, or thinking through the access-control UX of a multi-tenant SaaS portal. As a Senior Software Engineer with a UI focus, you will design and build the two web surfaces that put a human in the loop with AIM's autonomous fleet: the safety-critical Operator UI and the multi-tenant portal — and the shared design system that powers both.
Staff Software Engineer - Managed Kubernetes LambdaStaff Software Engineer - Managed KubernetesBellevue, WashingtonOur investors notably include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove. As a Staff Engineer on our Orchestration team, you will collaborate to help drive the technical vision for Lambda's managed orchestration services, including Managed Kubernetes, Managed Slurm on Kubernetes, and higher-level platform services for inference and AIOps.
Staff+ Software Engineer, Databases AnthropicStaff+ Software Engineer, DatabasesSeattle, WAYou'll help set the database strategy for Anthropic: designing systems that handle billions of API requests, building storage that runs cleanly across GCP, AWS, and a range of deployment models, and creating the reliable data layer that lets research move fast. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.
Staff+ Software Engineer, Developer Acceleration AnthropicStaff+ Software Engineer, Developer AccelerationSeattle, WAThis research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space in which to collaborate with colleagues.
Staff+ Software Engineer, Experimentation AnthropicStaff+ Software Engineer, ExperimentationSeattle, WAThis role focuses on the configuration and experimentation systems that let teams safely roll out changes, run controlled experiments, and make data-driven decisions across our products and infrastructure - from feature flagging and dynamic configuration to A/B testing platforms that support both research and production workloads. The systems we build determine how quickly we can train new models, how reliably we can run safety experiments, and how effectively we can scale Claude to millions of users - demonstrating that safe, reliable infrastructure and frontier capabilities can go hand in hand.
Staff+ Software Engineer, Caching AnthropicStaff+ Software Engineer, CachingSeattle, WAThe Caching team is part of the Databases organization and owns the systems that keep Anthropic's hottest paths fast and correct: a managed Redis fleet, client libraries used across the company, and CDC-driven cache invalidation that solves one of distributed systems' hardest problems the right way. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.
Staff+ Software Engineer, Backend AnthropicStaff+ Software Engineer, BackendSeattle, WAYou'll independently scope complex, multi-month projects through ambiguous problem spaces and lead peers through technical and product decisions; you'll drive alignment with product, peer engineering teams, and research to identify capability gaps and translate frontier model improvements into shipped products. This critical effort partners with Safeguards, Auth & Identity, Policy, and Product teams across API, Claude.ai, and third-party platforms as customers, creating the systems for KYC/KYB, trust grant issuance and inheritance, and end-user verification that flow across every Anthropic surface.
Staff+ Software Engineer, Platform AnthropicStaff+ Software Engineer, PlatformSeattle, WAThis critical effort partners with Safeguards, Auth & Identity, Policy, and Product teams across API, Claude.ai, and third-party platforms as customers, creating the systems for KYC/KYB, trust grant issuance and inheritance, and end-user verification that flow across every Anthropic surface. Agentic Systems: You'll build the infrastructure and APIs that let developers create powerful agentic applications on the Claude API - including Claude Managed Agents, our managed platform for deploying and running agents in production.
Software Engineer - Digital Site Development Costco Wholesale CorporationSoftware Engineer - Digital Site DevelopmentIssaquah, WA$85,000–$110,000 / yearDevelops the conceptual systems architecture design and the supporting technologies needed to enable new and/or enhanced functionality within a given product/application, applying principles that promote availability, reusability, interoperability, and security into the design framework. Increases proficiency and understanding of relational and non-relational databases, distributed application architectures, user interfaces and user experience, quality assurance, security concerns, and business value creation.
Software Engineer, Hardware Test & Automation Cowboy SpaceSoftware Engineer, Hardware Test & AutomationSeattle, WashingtonOur satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities—from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. We are looking for a Build & Test Engineer to own our hardware-in-the-loop (HITL) test infrastructure: the racks, tooling, and automation that run real flight software against real or emulated spacecraft hardware, including the satellite bus, flight computer, and other subsystems.
Sr Software Engineer - Gameplay (NST) NintendoSr Software Engineer - Gameplay (NST)Redmond, WashingtonRemoteNintendo Software Technology Corporation Nintendo Software Technology Corporation, based in Redmond, Washington, is a wholly owned subsidiary of the world's largest manufacturer and marketer of video games, Nintendo Co., Ltd., headquartered in Kyoto, Japan. Strong preference of experience supervising a team; allocating work, supervising their results, providing clear expectations, and providing coaching and development – to ensure high-quality execution and successful outcomes.
Founding Software Engineer (WingWork) WingWorkFounding Software Engineer (WingWork)Seattle, WashingtonWe are on a mission to create a SaaS product for the Private Aviation Industry (Charter Operators, Private Owners, Repair Stations, and Commercial Tours) that ensures their aircraft's compliance and airworthiness in accordance with FAA regulations, while also streamlining their operational workflow. WingWork, a venture-backed Vertical SaaS startup in the Private Aviation Industry is seeking a highly skilled and motivated Founding Engineer with a strong Full-Stack background.
Fullstack Software Engineer, Liveops BRINCFullstack Software Engineer, LiveopsSeattle, WAToday, we've expanded into creating and deploying 911 response networks, where drones are dispatched to 911 calls to provide real-time visual data, enhancing safety and enabling de-escalation-focused responses. Our cutting-edge solutions are utilized by over 600 public safety agencies across America and the company has raised over $150M from investors, including Index Ventures, Motorola Solutions, Sam Altman, Dylan Field, Mike Volpe, Alexandr Wang and more.
Software Engineer III | AI/ML ExtraHop NetworksSoftware Engineer III | AI/MLSeattle, WABy decrypting and analyzing complete packet-level data at wire speed and leveraging cloud-scale machine learning, ExtraHop empowers Security Operations Centers (SOCs) to detect, investigate, and remediate modern cyber risks in real time across their entire hybrid infrastructure, including data center, cloud, and SASE environments. ExtraHop is at the forefront of innovation in the cybersecurity space, delivering cutting-edge Network Detection and Response (NDR) solutions that empower organizations to detect, respond to, and mitigate cyber risks in real time.
Senior Software Engineer, Engops StackAdaptSenior Software Engineer, EngopsSeattle, WARemoteThe Core Services SRE team ensures robust and reliable software by building and operating self-healing systems that automatically deploy and manage the scaling of core services software, while championing and evangelizing the principles of reliable software and Site Reliability Engineering across the organization. Propose, design, coordinate, and implement cross-cutting initiatives impacting all of core services, both as an individual contributor and as a technical leader.
Principal Software Engineer, Full Stack Salesforce.com, Inc.Principal Software Engineer, Full StackSeattle, WA$197,300–$313,700 / yearIn addition to Events Technology, you will play a part in other public web experiences including www.tableau.com, www.mulesoft.com, and "role based" sites such as the developer, admin, and architect subdomains of Salesforce.com. Our industry-leading platforms and solutions help connect target audiences to the content they need, when and where they need it - making it as easy as possible for them to learn how to use Salesforce products and drive business growth.
Senior Software Engineer, Full-Stack AnthropicSenior Software Engineer, Full-StackSeattle, WAWe're currently building for three verticals, with more to come: Life Sciences - an agentic research platform for scientists: specialist agents for computational biology, literature review, and regulatory review, built on model capabilities we're investing in for biology and chemistry. We'll look to you to have a product-oriented mindset and input, own technical quality across the stack (performance, accessibility, reliability, and developer experience), scale your efforts to millions of users on a global scale, and carry genuine excitement about what AI makes possible.
Staff+ Software Engineer, Full-Stack AnthropicStaff+ Software Engineer, Full-StackSeattle, WAWe're currently building for three verticals, with more to come: Life Sciences - an agentic research platform for scientists: specialist agents for computational biology, literature review, and regulatory review, built on model capabilities we're investing in for biology and chemistry. We'll look to you to have a product-oriented mindset and input, own technical quality across the stack (performance, accessibility, reliability, and developer experience), scale your efforts to millions of users on a global scale, and carry genuine excitement about what AI makes possible.
Software Dev Engineer II : 26-01367 Akraya Inc.Software Dev Engineer II : 26-01367Seattle, WA$52–$58.68 / 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)! Hands-on expertise in AI/ML and Agentic AI frameworks , with a strong emphasis on LLM evaluation , including measuring model performance, response quality, accuracy, safety, robustness, and alignment across a wide range of use cases.