Senior Principal Machine Learning Systems Engineer, Search Platform AtlassianSenior Principal Machine Learning Systems Engineer, Search PlatformSeattle, Washington$272,700–$356,025 / yearStrong command of model optimisation techniques and experience with large-scale serving infrastructure : model serving frameworks (Triton, TorchServe, vLLM or equivalent), GPU/CPU optimisation, autoscaling. Proven track record designing and shipping low-latency ML serving systems at scale (sub-100ms ranking, retrieval, or inference pipelines).
NewPrincipal Software Engineer Lambda LabsPrincipal Software EngineerBellevue, WAOur 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. Own the multi-year technical strategy for Lambda's networking software roadmap covering tools, software and services supporting backend GPU fabric, frontend networks, backbone, edge and everything in between.
Principal Software Engineer UiPathPrincipal Software EngineerBellevue, WashingtonProficiency in AI-native development — working within Agent Harnesses (GitHub Copilot CLI, Coding Agents), authoring Markdown specs/ADRs and YAML configs as Agent-consumable inputs, orchestrating multi-step Agentic workflows across the SDLC, and reviewing Agent-generated code and PRs with production-grade rigor. Experience building, testing, debugging, and maintaining production-quality software, following established engineering practices as well as leveraging large language models (LLMs).
Principal Software Engineer UiPath IncPrincipal Software EngineerBellevue, WAProficiency in AI-native development - working within Agent Harnesses (GitHub Copilot CLI, Coding Agents), authoring Markdown specs/ADRs and YAML configs as Agent-consumable inputs, orchestrating multi-step Agentic workflows across the SDLC, and reviewing Agent-generated code and PRs with production-grade rigor. Experience building, testing, debugging, and maintaining production-quality software, following established engineering practices as well as leveraging large language models (LLMs).
NewPrincipal Software Engineer, Sensor - Mac, Linux, or Windows (Hybrid) CrowdStrikePrincipal Software Engineer, Sensor - Mac, Linux, or Windows (Hybrid)Redmond, WA$210,000–$320,000 / yearThe cloud component aggregates sensor telemetry for each customer’s network, correlates malicious behavior across multiple machines, and presents our customers’ operations teams with a prioritized summary of the threats detected in their environments. This is a Principal Software Development Engineer (SDE) role in the CTIO team that delivers the cutting edge innovation for our sensor (lightweight agent) for Linux, Windows, and Mac OS platforms.
Principal Flight Software Engineer K2 SpacePrincipal Flight Software EngineerSeattle, Washington$200,000–$240,000 / yearThis spectrum includes GNC algorithms (Rust, C++), application software on flight computers (Rust, C++), to embedded software on microcrontrollers (Rust, C++),to operating systems (Rust, C++, C), to HDL programming (VHDL, SystemVerilog), to test systems (Python), and many things inbetween. Engineered to survive the harshest radiation environments and to fully capitalize on today's and tomorrow's massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits.
NewSr Principal Software Engineer The Walt Disney CompanySr Principal Software EngineerSeattle, WashingtonYou will collaborate with domain engineering Directors and VPs across the organization to align platform capabilities with product delivery goals, communicate platform strategy and progress, and build the next generation of engineering leaders through hands ‑ on mentorship, code and design reviews, and architecture partnership . Job Posting Segment: PE - Streaming Backend Job Posting Primary Business: PE - Streaming Backend - Developer Productivity & Operational Excellence Primary Job Posting Category: Software Engineer Employment Type: Full time Primary City, State, Region, Postal Code: Seattle, WA, USA Alternate City, State, Region, Postal Code: Date Posted: 2026-09-21
Principal Software Engineer GE Healthcare Technologies Inc.Principal Software EngineerBellevue, WA$196,000–$294,000 / yearA Principal Software Engineer is a senior technical leader responsible for shaping the architecture, strategy, and technical direction of complex software The Principal Software Engineer provides senior technical leadership for the architecture, strategy, and delivery of complex software systems supporting GE HealthCare products and platforms. This opportunity combines deep software engineering expertise with meaningful technical ownership across healthcare products and platforms, providing the opportunity to influence complex engineering solutions while contributing to software quality, performance, and innovation.
Principal Software Engineer GE HealthCare Technologies IncPrincipal Software EngineerBellevue, WA$196,000–$294,000 / yearA Principal Software Engineer is a senior technical leader responsible for shaping the architecture, strategy, and technical direction of complex software The Principal Software Engineer provides senior technical leadership for the architecture, strategy, and delivery of complex software systems supporting GE HealthCare products and platforms. This opportunity combines deep software engineering expertise with meaningful technical ownership across healthcare products and platforms, providing the opportunity to influence complex engineering solutions while contributing to software quality, performance, and innovation.
Principal Mechanical Engineer Aesthetic Medical Device (Bothell, WA) Bausch Health Companies IncPrincipal Mechanical Engineer Aesthetic Medical Device (Bothell, WA)Bothell, WA$123,000–$170,000 / yearThe Principal Mechanical Engineer is responsible for leading the mechanical design of complex mechanical systems, designing hardware that satisfies system requirements, providing necessary design documentation, including detailed parts and assembly drawings to support the development, manufacture, and test of medical devices in the aesthetic space. Write engineering change orders to improve designs and address problems using Agile Product Life Cycle Management system.
Engineering Manager of Managers, Service Infrastructure Stripe IncEngineering Manager of Managers, Service InfrastructureSeattle, WAKey priorities for this group include delivering an amazing internal developer experience, enabling Stripes to effectively leverage Infrastructure platforms, and driving systemic improvements to Stripe's API availability. As an Engineering Manager of Managers within the Service Infrastructure organization, you will lead multiple teams, collaborate with infrastructure and product engineering leaders, and advance Stripe's architecture.
SR. CYBERSECURITY ENGINEER, CLOUD AND INCIDENT RESPONSE Widenet ConsultingSR. CYBERSECURITY ENGINEER, CLOUD AND INCIDENT RESPONSESeattle, WashingtonContractorLead and support investigations across cloud, identity, endpoint, email, and SaaS, including account compromise, data exfiltration, insider risk, and business email compromise. This position will help strengthen the cloud security posture, mature incident response capabilities, and advance data security and zero-trust initiatives.
Senior Principal Software Engineer Oracle CorpSenior Principal Software EngineerSeattle, WA$135,200–$306,400 / yearYou will define the validation strategy for critical database infrastructure, collaborate across multiple engineering organizations, and drive the development of scalable validation frameworks that improve service availability, resilience, and customer experience. You will work closely with architects, database engineers, and service teams to identify reliability risks, influence product direction, and establish engineering best practices that proactively detect and prevent production issues before customer impact.
Senior Principal AI Agent / ML Engineer (OCI) Oracle CorpSenior Principal AI Agent / ML Engineer (OCI)Seattle, WA$96,800–$306,400 / yearThis role requires a proven engineer who can translate ambiguous product and platform goals into durable technical strategy, lead multi-team execution without direct authority, and remain deeply hands-on in design, code, reviews, operations, and incident follow-up. This person will set architecture and engineering direction for production-grade agentic AI platforms, autonomous workflows, scalable inference infrastructure, and enterprise AI applications used in large-scale, business-critical environments.
TT/Principal-AI Platform & Governance Engineer - Business Consulting Infosys LtdTT/Principal-AI Platform & Governance Engineer - Business ConsultingSeattle, WA147413BRCalifornia, Georgia, Texas, WashingtonUSAInfosys Limited Principal - Business ConsultingITL USA Atlanta, GA, Dallas, TX, Los Angeles, CA, Seattle, WAEnterprise ArchitectureProcess|Consulting processes|Technology Consulting process Principal - AI Platform & Governance Engineer - Business Consulting154375193125About Us. We combine the power of time-tested methodologies, people-driven innovation and disruptive technology to enable leaders of the world's top brands pursue a path of smart transformation.
Principal Software Engineer ProtingentPrincipal Software EngineerRedmond, WA$185,000–$255,000 / year10+ years of software development experience, having progressed from shipping great software to shaping how organizations approach building it. • Strong understanding of SQL databases, caching layers, event-driven architectures, and data pipeline design.
Principal Software Engineer Oracle CorpPrincipal Software EngineerSeattle, WA$99,600–$223,400 / yearSuccess in this role is measured not only by code written, but by the ability to effectively leverage AI systems to accelerate delivery, automate repetitive engineering work, and solve high impact operational problems. Oracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle''s differing products, industries and lines of business.
Principal Application Software Engineer Oracle CorpPrincipal Application Software EngineerSeattle, WA$99,600–$209,500 / year11 years of software development experience; or bachelor''s degree in a relevant technical field and 7 years of software development experience; or master''s degree in a relevant technical field and 5 years of software development experience; or doctorate in a relevant technical field and 3 years of software development experience. This role is a senior technical contributor who leads complex design and implementation work, guides engineers, improves application development practices, and resolves complex production and integration issues across distributed systems.
Senior Principal Network Reliability Engineer - Network Region Build (NRB) Oracle CorpSenior Principal Network Reliability Engineer - Network Region Build (NRB)Seattle, WA$126,200–$264,100 / yearSuccessful candidates have a proven record of leading complex infrastructure initiatives, driving engineering strategy across multiple organizations, and improving reliability through architecture, operational discipline, automation strategy, and technical leadership. Oracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle''s differing products, industries and lines of business.
Lead Principal Core Infrastructure Engineer Oracle CorpLead Principal Core Infrastructure EngineerSeattle, WA$135,200–$306,400 / yearOracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle''s differing products, industries and lines of business. Our team develops the core infrastructure that powers OCI Networking''s control and management services, solving complex challenges in network configuration management at cloud scale.