Principal/Staff Software Engineer Synthesia LtdPrincipal/Staff Software EngineerSeattle, WAOur total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidias VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. Relevant engineering experience for teams building enterprise-grade systems; this may include areas such as security, compliance, data handling, access control, multi-tenant systems, or platform services.
INS/Principal - Insurance - AI & Automation (West Coast) Infosys LtdINS/Principal - Insurance - AI & Automation (West Coast)Bellevue, WA$154,375–$193,125 / year152369BRArizona, California, WashingtonUSAInfosys Limited Principal - Business ConsultingITL USA Bellevue, WA, Phoenix, AZ, San Diego, CA, San Francisco, CA, San Jose, CAInsuranceProcess|Consulting processes|Technology Consulting process Principal: Insurance - AI & Automation154375193125. With offices in 20 countries and backed by the power of the global Infosys brand, our teams help the C-suite navigate today's digital landscape to win market share and create shareholder value for lasting competitive advantage.
Principal Nuclear Licensing Engineer TerraPower LLCPrincipal Nuclear Licensing EngineerBellevue, WA$148,722–$193,146 / yearTerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes. VP of Regulatory Affairs, this leader will provide advanced licensing expertise, influence regulatory strategy, mentor licensing staff, and drive high‑impact licensing activities for the Natrium advanced reactor project.
Principal, Air Quality Ramboll UK LtdPrincipal, Air QualitySeattle, WA$165,000–$190,000 / yearYour key tasks and responsibilities will be: Identifying and pursuing business development opportunities; Managing projects, clients, and regulatory agency relations; Critically reviewing and interpreting local, state, and federal environmental regulations, compiling and drafting regulatory applicability determinations, and communicating findings, to co-workers, clients, and regulatory agencies; Overseeing the preparation of comprehensive federal and state air permit application materials; Testifying at administrative and/or court hearings; Participating in local, national and international scientific and trade group meetings; and. Demonstrated capabilities in understanding, interpreting, and applying environmental regulations to real-world situations; Understanding of air quality issues and agency-approved methods and guidance; Ability to externally manage client and regulatory agency relationships and internally manage staff and competing project priorities; and.
Principal Technical Program Manager - Technology, Process, And Supplier Development (Tpd) EchodynePrincipal Technical Program Manager - Technology, Process, And Supplier Development (Tpd)Kirkland, WA$149,659–$224,437 / yearEchodyne is seeking a Principal Technical Program Manager with experience leading supplier-driven hardware and technology integration programs to join our Program Management Office (PMO). The ideal candidate brings a systems mindset, deep technical fluency, and a strong background in managing complex cross-functional efforts with both internal and external teams.
Principal Technical Program Manager EchodynePrincipal Technical Program ManagerKirkland, WA$149,659–$224,437 / yearEchodyne's technology is export controlled by the U.S. Government and we must evaluate an applicant's eligibility to handle export-controlled information or obtain required Government authorizations. Deliver innovative products and solutions that exceed customer expectations and advance Echodyne's core technology differentiation.
Principal Software Engineer (Fullstack) EchodynePrincipal Software Engineer (Fullstack)Kirkland, WA$164,594–$246,788 / yearYou'll play a key role in architecting robust solutions, collaborating across engineering, product, and UX, and ensuring our technology thrives in real-world, dynamic environments. Deliver core platform components: async (Tokio/Rust) backend services, well-defined APIs, and real-time data/event models.
Principal Product Designer. Brand And Experience (Contract, Hands-On) OfferupPrincipal Product Designer. Brand And Experience (Contract, Hands-On)Bellevue, WA$140–$165 / hourOne of the top local marketplace apps for local buyers and sellers in the U.S., OfferUp makes it easy for people to discover more of what they need-from great deals and secondhand goods to jobs, services, home rentals, and more-right in their own communities. We're building the next chapter of OfferUp, and Consumer Marketing has an important job to do: create future demand, capture existing demand efficiently, reactivate people who already know us, and connect our investment to our strongest local marketplaces.
Principal Project Manager, Rail + Transit SidaraPrincipal Project Manager, Rail + TransitBellevue, WashingtonThis is a technically focused leadership role for a senior practitioner who thrives on project delivery - someone known for bringing clarity to complexity, leading multidisciplinary teams, and consistently executing at a high level. You will be a key figure in delivering major rail and transit projects while also supporting client development and pursuits, helping strengthen TYLin’s presence across Washington, Oregon, and the broader Pacific Northwest market.
Principal Product Operations Manager Socure IncPrincipal Product Operations ManagerSeattle, WAThis role sits at the center of that discipline, owning four things: the tools and systems product teams plan and work in, the reporting and analytics that give everyone visibility into whats happening, the process that makes planning and delivery repeatable instead of reinvented pod by pod, and the ongoing work of keeping strategy and execution connected as priorities shift. Centralize and facilitate Product Performance metrics definition, telemetry builds, and availability to central data and BI teams, and coordinate dashboard and reporting builds with the central Business Intelligence team to enable deeper insights and faster decision making for the Product Team.
Managing Principal, Building Structures HNTB CorpManaging Principal, Building StructuresBellevue, WA$216,716.23–$346,183.07 / yearWorking closely with office, division, and national leadership, you will help define growth strategies, strengthen key client relationships, and pursue opportunities that expand HNTB''s presence in both established and emerging markets. If you are energized by growing a practice, developing talent, and shaping the future of structural engineering within one of the industry''s most respected firms, we invite you to join us and help define the next chapter of our Building Structures practice.
Principal Product Builder - AI & Agentic Products AmperityPrincipal Product Builder - AI & Agentic ProductsSeattle, WA$200,000–$280,000 / yearIt’s why more than 400 brands —like Alaska Airlines, Wyndham Hotels & Resorts, DICK’S Sporting Goods, Virgin Atlantic, and Brooks Running—trust us with the one thing they can’t afford to get wrong, and why IDC named us a Leader in the category in 2026. As a Principal Product Builder, AI and Agentic, you'll ensure customers adopt and realize genuine value from what we build — often across multiple outcomes at once, connecting pain points to technical strategy and company growth.
NewArchaeologist Principal Investigator /Project Manager- Pacific Northwest Sundance Consultants LLCArchaeologist Principal Investigator /Project Manager- Pacific NorthwestWAThis position is responsible for developing work, leading and conducting all phases of cultural resource investigations under Section 106 and 110 of the National Historic Preservation Act (NHPA) and other environmental planning projects, including but not limited to consultation, preparing data recovery and monitoring plans, lead field coordination and interpretation of state and federal laws and report writing. Lead/Principal investigator for cultural resources projects include performing research, archaeological fieldwork surveys, monitoring, testing, and data recovery projects, historical research, preservation activities, report preparation, site forms and curation of archaeological artifacts.
NewSenior Principal - Business Consulting Infosys LTDSenior Principal - Business ConsultingSeattle, WAConsulting business development experience working with client teams, project teams to generate and cross-sell consulting projects including developing industry solutions within the Manufacturing industry, designing the sales approach, defining target client management, creation and delivery of client pitch and proposals, developing sales campaigns and managing the sales life cycle from lead identification through closing and revenue recognition (3~5 years of experience). Deep understanding of the manufacturing domain (Automotive, Aerospace & Defense sectors ) required as well as experience in managing consulting engagements with a focus in doing work in Supply Chain & Distribution, ERP ( SAP & Oracle lead enterprise transformation), PLM & Engineering with a team of consultants delivering strategy, roadmap, business case development, and business process improvements across any part of the manufacturing value chain.
Principal Software Engineer, Business Experience SnapchatPrincipal Software Engineer, Business ExperienceBellevue, WA$276,000–$414,000 / year10+ years of post-Bachelor's software development experience; or a Master's degree in a technical field + 9+ year of post-grad software development experience; or a PhD in a related technical field + 6+ years of post-grad software development experience. The Company operates Snapchat, a visual messaging app that enhances your relationships with friends, family, and the world, and Specs Inc., a wholly-owned subsidiary dedicated to making computing more human, in addition to Bitmoji, Saturn, and other digital services.
Principal Software Engineer, Ads Format SnapchatPrincipal Software Engineer, Ads FormatSeattle, WA$276,000–$414,000 / yearMinimum Qualifications: 10+ years of post-Bachelor's software development experience; or a Master's degree in a technical field + 9+ year of post-grad software development experience; or a PhD in a related technical field + 6+ years of post-grad software development experience. The Company operates Snapchat, a visual messaging app that enhances your relationships with friends, family, and the world, and Specs Inc., a wholly-owned subsidiary dedicated to making computing more human, in addition to Bitmoji, Saturn, and other digital services.
Principal Engineer, SCADA Engineering (BESS) Invenergy LLCPrincipal Engineer, SCADA Engineering (BESS)Seattle, WA$155,000–$180,000 / yearThis role is accountable for defining and documenting control strategies and data interfaces between substation devices, generation resources, data centers, remote operation centers, and external entities, and for driving reliable data connectivity and control readiness from design, commissioning, and turnover. Monitor construction progress remotely and via on site visits, support resolution of field issues, attend in person meetings with stakeholders, and provide on-site programming and field support during commissioning when required.
Principal Applied Scientist UiPathPrincipal Applied ScientistBellevue, WashingtonLead the design and implementation of ML infrastructure and services for model training, fine-tuning, large-scale inference, model serving, monitoring, drift detection, continuous learning loops, and ML operations for agentic systems. • Define and drive technical strategy for agent-based automation, including how autonomous agents use LLMs, reinforcement learning, simulation environments, tool use, and multi-step reasoning to integrate with the UiPath platform.
Principal Designer UiPathPrincipal DesignerBellevue, WashingtonAs a Principal Designer, you will play a critical role in shaping the design direction of our products and ensuring that our user experiences are intuitive, engaging, and aligned with our business goals. You will lead design initiatives, mentor designers, and collaborate with cross-functional teams to deliver outstanding design solutions.
Principal Engineer - AI Platform & Operations Serko LimitedPrincipal Engineer - AI Platform & OperationsSeattle, WAWhen you join Serko, you become part of a team of passionate travellers and technologists bringing people together, using the world's leading business travel marketplace. With offices in New Zealand, Australia, North America, and China, we are thrilled to be expanding our global footprint, landing our new hub in Bengaluru, India.