875 Results for

Principal Software Engineer Jobs in Seattle, WA

Jobs

New!

Seattle, WA2 days ago

Remote

$170,000–$270,000 Per Year

The ideal candidate will be mid-level backend .Net Software Engineer with recent experience within a small, fast-paced, API-focused AI infrastructure startup company with lean, highly collaborative engineering teams, where they have operated with significant ownership, autonomy, and a strong “go-getter” mentality. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

Bellevue, WA13 days ago

Remote

Full-time
Employee

Designing and delivering RESTful APIs, including authentication, scaling, documentation, lifecycle management, and publishing via API management platforms. This role will focus on building secure, scalable services, contributing to architectural decisions, and driving engineering best practices across the team.

New!

Seattle, WA6 days ago

The Company owns, operates and/or provides services to 178 television stations in 81 markets affiliated with all major broadcast networks; owns Tennis Channel, the premium destination for tennis enthusiasts; multicast networks CHARGE, Comet, ROAR and The Nest. This role is ideal for an engineer experienced in hybrid app development across Android and TV ecosystems, with knowledge of React Native tools (Navigation, Redux, Reanimated), DRM, SSAI, analytics SDKs, AWS, and CI/CD pipelines, and a passion for media, sports, or entertainment streaming.

Tacoma, WA30+ days ago

Full-time
Employee

Here, how we empower our people is extraordinary: Glassdoor Best Places to Work 2025, Great Place to Work-Certified in five countries, and Cigna Healthy Workforce honors three years running - and what we build is world-class: recognized as CybersecAsia's Best in Critical Infrastructure 2024 - evidence that when first-class technology meets empowered talent, remarkable careers take shape. In this pivotal role, you will lead Infoblox's Digital Agent Initiative, focused on developing AI-assisted engineering and employee experiences-bringing together identity, knowledge, automation, and agentic AI to meaningfully improve how teams design, code, test, and support products and internal workflows.

Tacoma, WA30+ days ago

Full-time
Employee

Here, how we empower our people is extraordinary: Glassdoor Best Places to Work 2025, Great Place to Work-Certified in five countries, and Cigna Healthy Workforce honors three years running - and what we build is world-class: recognized as CybersecAsia's Best in Critical Infrastructure 2024 - evidence that when first-class technology meets empowered talent, remarkable careers take shape. Preferred experience includes: GenAI/LLMs, semantic search, vector databases, embedding pipelines for data analytics applications, familiarity with modern analytics engineers and warehouses (e.g., Clickhouse, Redshift, Athena, Trino, Presto, Databricks, or Snowflake), and a background in networking, cybersecurity or SaaS analytics products.

New!

Seattle, WA2 days ago

$107,900–$195,050

These consulting services provide clients with overall project management tasks in the areas of comprehensive engineering design of electrical transmission and distribution, substation and transmission line projects nationwide. March 31, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Bellevue, WA30+ days ago

Full-time
Employee

Success is measured by the adoption and effectiveness of generative AI-enabled software solutions, technical leadership contributions, dependent teams adoption of recommended architectures and the ability to influence technology decisions. Job Responsibilities: Drive the architecture, design, and production deployment of enterprise-scale software development releases using generative AI systems, including LLM orchestration, Agent/Skill creation, retrieval-augmented generation, evaluation, and operational monitoring.

Bellevue, WA30+ days ago

Full-time
Employee

This role leads the design, architecture, and delivery of agentic AI platforms and scalable software systems that integrate Large Language Models (LLMs) into production-grade enterprise environments. Define and evaluate AI platform strategies, including microservices architecture, model orchestration patterns, distributed systems design, and cloud deployment models aligned with business objectives.

Seattle, WA21 days ago

Full-time
Employee

You will work closely with product leaders and engineering leadership ensuring our solutions are fault-tolerant, secure, and blazingly fast, while consistently driving innovation that advances the overall business. Individuals seeking employment at DocuSign are considered without regards to race, ethnicity, color, age, sex, religion, national origin, ancestry, pregnancy, sexual orientation, gender identity, gender expression, genetic information, physical or mental disability, registered domestic partner status, caregiver status, marital status, veteran or military status, citizenship status, or any other legally protected category.

Bellevue, WA30+ days ago

$304,000–$437,000 Per Year
Full-time
Employee

AS A PRINCIPAL SOFTWARE ENGINEER II, YOU WILL: Set Technical Vision: Lead strategic planning for the Horizon Catalog, translating complex business goals into technical architecture, and developing high-impact engineering roadmaps. Strategic Leadership: Track record of translating high-level business strategy into actionable engineering roadmaps and influencing technical direction across multiple teams.

Clyde Hill, WA30+ days ago

$280,000–$402,500 Per Year
Full-time
Employee

Deep expertise in multiple security domains, including AI/ML system security, applied cryptography, identity and access management, secure distributed system design, cloud and infrastructure security and/or software supply chain security. As a Principal Software Engineer II on the Product Security team, you will be the senior technical authority for Product Security and play a critical leadership role in shaping and advancing Snowflake's security.

Seattle, WA12 days ago

Full-time
Employee

Individuals seeking employment at DocuSign are considered without regards to race, ethnicity, color, age, sex, religion, national origin, ancestry, pregnancy, sexual orientation, gender identity, gender expression, genetic information, physical or mental disability, registered domestic partner status, caregiver status, marital status, veteran or military status, citizenship status, or any other legally protected category. Using Docusign's Intelligent Agreement Management platform, companies can create, commit, and manage agreements with solutions created by the #1 company in e-signature and contract lifecycle management (CLM).

Bellevue, WA30+ days ago

Full-time
Employee

Notice for New York City Applicants & Employees: Okta may use Automated Employment Decision Tools (AEDT), as defined by New York City Local Law 144, that use artificial intelligence, machine learning, or other automated processes to assist in our recruitment and hiring process. Our service is built on Relationship-Based Access Control (ReBAC), a powerful model that allows developers to define and query complex access rules that go beyond the limitations of traditional authorization models.

Seattle, WA30+ days ago

Full-time
Employee

However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. We continue to transform the industry year over year, by deploying a suite of software solutions to millions of customers every day - customers who depend on DAT for the most relevant data and most accurate insights to help them make smarter business decisions and run their companies more profitably.

Seattle, WA23 days ago

Full-time
Employee

Primary Location: USA.WA.SeattlePrimary Location Base Pay Range: $163,800 USD - $245,800 USDAdditional US Location(s) Base Pay Range: $148,200 USD - $264,000 USD. We know that flexibility can take shape in many ways, so rather than a number of required days in-office each week, we simply spend at least half (50%) of our time each quarter in the office or in the field with our customers, prospects, and partners (depending on role).

Seattle, WA13 days ago

$212,202–$270,600 Per Year
Full-time
Employee

Must have [1] year of experience in the following skill(s): providing technical leadership and project management for all aspects of the software development lifecycle; and designing and developing large-scale, multi-tiered, distributed software applications, tools, systems or services using Object Oriented Design, distributed programming, and: C#, C++, or Java. The pay range for this position in Seattle, WA is $212,202/year to $270,600/year; however, base pay offered may vary depending on job-related knowledge, skills, and experience A sign-on bonus and restricted stock units may be provided as part of the compensation package, in addition to a full range of medical, financial, and/or other benefits, dependent on the position offered.

New!

Redmond, WA1 day ago

Full-time
Employee

We design and manufacture advanced specialty vehicles-including fire, ambulance, and recreational vehicles-alongside waste collection vehicles, materials processing machinery, mobile elevating work platforms, and equipment for the electric utility industry. Through our global dealer, parts and service network and true value-creating digital solutions, we deliver best-in-class lifecycle support, helping customers maximize return on investment.

Clyde Hill, WA17 days ago

$304,000–$437,000 Per Year
Full-time
Employee

We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset - who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. We lead innovations across open table formats such as Apache Iceberg, helping customers build peta-byte scale multi-cloud data lakes on Snowflake.

New!

Seattle, WAToday

Remote

Full-time
Employee

Bachelor's degree in Computer Science or equivalent, and 10+ years of experience; OR Master's degree and 6+ years of experience; OR PhD and 4+ years of experienceDistributed Systems Visionary: You have 10+ years of experience building and scaling robust products. Architectural Leadership: Serve as the primary technical lead, independently driving the design and architecture of complex, large-scale cloud services that underpin our multi-cloud and hybrid data management platform.

Seattle, WA30+ days ago

Full-time
Employee

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. To conform to U.S. Government commercial space technology export regulations, including the International Traffic in Arms Regulations (ITAR), 8 U.S.C. § 1324b(a)(3), applicants for employment at Blue Origin must be a U.S. citizen or national, lawfully admitted for permanent residence into the U.S. (i.e. current green card holder), or lawfully admitted as a refugee or granted asylum under 8 U.S.C. § 1157-1158.

Seattle, WA30+ days ago

Full-time
Employee

Seattle, WA30+ days ago

Full-time
Employee

Bellevue, WA18 days ago

$237,200–$355,800 Per Year
Full-time
Employee

Collaborate with application, and infrastructure architects and be responsible for the defining-designing-delivering of the technical architecture, patterns, technical quality, risks, fitness for purpose and operability of technical architecture solutions. Experience in debugging of complex full stack SW/FW/HW issues is a must, understand the flow of a GPU through different layers of a system and be able to validate the items connecting to the GPU SOC (PCIe, VR's, RMs, retimers, HBM, internal networking).

Bellevue, WA8 days ago

$192,500–$245,000 Per Year
Full-time
Employee

We are an agile team that operates iteratively, focused on building high-quality software and adhering to rigorous operational best practices across complex, cross-functional distributed systems. Drive technical strategy: Partner with principal engineers to define the technical roadmap for Smartsheet’s AI infrastructure, making architectural decisions that will shape how we build with AI for years to come.

Bellevue, WA30+ days ago

Full-time
Employee

Experience designing and building self-service analytics and big data solutions using cloud technologies (e.g., EMR, Aurora, Redshift, Glue, S3, SWF, Quicksight etc.) (Required). Licenses and Certifications: Cloud platform certification(s) (AWS Certified Solutions Architect, AWS Certified Cloud Practitioner, OR Microsoft Certified Solutions Associate (MCSA) (Required).

Newcastle, WA30+ days ago

Full-time
Employee

Serve as a player/coach who balances hands-on technical contributions with team development-building proof-of-concepts and production solutions that advance modernization goals, while actively coaching engineers on best practices, design patterns, and modern development methodologies. As a member of the Software Development Engineering team, the Senior Software Engineer is responsible for leading the implementation of complex software systems that help Cambia make healthcare easier and members lives better.

Seattle, WA11 days ago

$192,600–$317,800 Per Year
Full-time
Employee

Lead Windows Platform initiatives, such as System BIOS, UEFI, ACPI, Drivers, Applications, loose-leaf driver architecture, OS compatibility, Enterprise security features, ensuring efficient and effective delivery of software solutions across the full life cycle of development. Lead Windows development for complex features and subsystems to meet Windows on Snapdragon product requirements; recommends technical and architecture enhancements such as Windows drivers, hypervisor/virtualization, security, memory, storage, buses, peripherals, power, thermals.

Bellevue, WA30+ days ago

Full-time
Employee

Understanding load balancers (ex - A10, F5), firewalls (ex - CheckPoint), Venafi, MDM (ex - Mobile Iron), Cloud (ex - AWS, Azure), Malware Protection (ex -FireEye), Advanced Persistent Threats (ex - Damballa), Privileged Accounts (ex - CyberArk), SIEM (ex - ArcSight), Log & Event (ex - Splunk), Intrusion IDS/IPS (ex - Symantec), Cloud Platform (ex - PCF, Docker), Scanning (ex - Qualys), AppSec (ex - Veracode). In this pivotal role, you will serve as a trusted domain expert, guiding our vision and driving tangible results to fortify our security posture across various domains, including mobile devices, IoT devices, enterprise applications, cloud infrastructure, big data environments, core and carrier network technologies, and other critical business units as necessary.

Bellevue, WA30+ days ago

Full-time
Employee

You'll work across engineering, product, and business teams to embed ANBA-driven intelligence into production systems-delivering proactive, outcome-oriented experiences that improve customer satisfaction and business results. Responsibilities: Architects agentic AI systems that accomplish sophisticated tasks by invoking AI models as well as internal and third-party tools using APIs, ensuring flawless data flow in production environments.

Bellevue, WA30+ days ago

$200,000–$300,000 Per Year
Full-time
Employee

As a key contributor to the success of AMD's product, you will be part of a leading team to drive customer issues to closure and deliver the highest quality, industry leading technologies to customers. At AMD, our mission is to build great products that accelerate next-generation computing experiences-from AI and data centers, to PCs, gaming and embedded systems.

Bellevue, WA16 days ago

$168,316–$252,475 Per Year
Full-time
Employee

Perform technical review of engineering products as an extension of the project design authority, including specialist topics, cross-functional products, critical activities requiring focused resolution, and driving integration across the overall reactor systems and their interfacing SSCs. Advise design team in planning efforts, generate integrated project strategies for critical topics/sequences/activities to drive successful and robust products, and provide technical accountability for scope correctness and completeness.

Seattle, WA30+ days ago

Full-time
Employee

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.

Seattle, WA30+ days ago

Full-time
Employee

Seattle, WA30+ days ago

Full-time
Employee

Seattle, WA30+ days ago

Full-time
Employee

Bellevue, WA16 days ago

$168,316–$252,475 Per Year
Full-time
Employee

TerraPower 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. This position reports to the Senior Manager of Regulatory Construction Oversight and supports the Natrium advanced reactor project by conducting technical inspections related to the construction of Kemmerer Unit 1 and other Natrium units.

Seattle, WA30+ days ago

Full-time
Employee

New!

Seattle, WAToday

Remote

Full-time
Employee

Working at the forefront of hybrid and multi-cloud technology, you will empower data scientists, engineers, and analysts with the tools and infrastructure they need for advanced analytics and modeling. The Data Platform Pillar is the bedrock of Cloudera's technology, where we design and build the core components that let our customers store, manage, and process data with unmatched scalability, security, and performance.

New!

Clyde Hill, WAToday

$264,000–$379,500 Per Year
Full-time
Employee

Search Domain Expertise: Deep, hands-on experience with search technologies (e.g., Lucene/Elasticsearch/OpenSearch, vector databases) and a proven track record of improving search relevance and ranking at scale. The Snowscope team is at the heart of this mission, building and maintaining the internal search system that powers discovery across diverse corpuses, including the Catalog, Marketplace, Documentation, Workspaces, Notebooks, and more.

Bellevue, WA30+ days ago

Full-time
Employee

The role involves collaborating with engineers to develop software components using technologies such as virtualization, microservices, software-defined networking, network functions virtualization, and big data. Knowledge, Skills and Abilities: Full Stack Developer: Backend - Java, Spring boot, NodeJS, Microservices, REST, Event-driven design (Kafka/RabbitMQ).

Bellevue, WA30+ days ago

Full-time
Employee

Develop software solutions and conduct tests to drive engineering projects and ensure quality deliverables, including design and development of scalable iOS features using Swift and modern Apple frameworks. Contribute to design innovations that improve systems, processes, or services using new frameworks, architectural patterns such as MVVM or Coordinator, and industry best practices.

Bellevue, WA30+ days ago

Full-time
Employee

They collaborate with other engineers to develop modern software components using technologies like microservices, virtualization, software-defined networking, network functions virtualization, and big data. At T-Mobile, Senior Software Engineers design, build, and deploy scalable software solutions that meet customer needs and support highly available systems.

Bellevue, WA18 days ago

Full-time
Employee

Success is measured by the ability to deliver effective software solutions that integrate with system protocols and meet business and technical requirements, as well as owning and improving mobile CI/CD pipelines, release reliability, and developer productivity at scale across T-Life, Metro, and enterprise applications. This team is responsible for supporting and managing the delivery infrastructure for T-Life, Metro, and other enterprise mobile applications, ensuring high-quality releases, operational reliability, and a seamless customer experience at scale.

New!

Bellevue, WA1 day ago

Full-time
Employee

Seattle, WA30+ days ago

$150,000–$175,000 Per Year
Full-time
Employee

This position has a direct and immediate impact on how advertising is delivered across our mobile apps, helping the Revenue Development team continuously improve monetization while maintaining a great experience for users. About You: 5+ years of experience developing mobile applications with React Native and TypeScript, along with working knowledge of Swift, Kotlin, or Java, and familiarity with Xcode and Android development tools.

Bellevue, WA13 days ago

Full-time
Employee

We are seeking a Senior Software Engineer to join our Device Insurance Technology team and play a key role in building a new in-house engineering capability. In this role, you will take ownership of existing services, lead new development efforts, and help define engineering practices, architecture patterns, and delivery processes.

Seattle, WA30+ days ago

Full-time
Employee

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.

Clyde Hill, WA21 days ago

Full-time
Employee

Serving as a technical leader and primary point of integration between power system engineering, data science, and backend tooling, this role ensures that modeling tools, datasets, automated workflows, and system integrations effectively support forwardlooking analysis, scenario evaluation, and informed decision making. This role provides technical authority and direction across backend data management, database administration, GIS integration, automation, and system integration to ensure that modeling tools and supporting applications areaccurate, reliable, scalable, and aligned withlongtermplanning needs.

Bellevue, WA16 days ago

$169,922–$235,464 Per Year
Full-time
Employee

TerraPower 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. As a result, the companys activities in the fields of nuclear energy and related sciences are yielding significant innovations in the safety and economics of nuclear power, hybrid energy and medical applications all for significant human health benefits.

Bellevue, WA30+ days ago

Full-time
Employee

Develop software solutions and conduct tests to drive engineering projects and ensure quality deliverables, including design and development of scalable Android features using Kotlin and modern Android frameworks. Contribute to design innovations that improve systems, processes, or services using new frameworks, Jetpack Compose, modular architecture approaches, and industry best practices.

Resume Resources

Free Resume Templates Free Resume Builder

Get noticed by top employers!

Upload your resume to let employers know you're open to Principal Software Engineer job opportunities. Plus, receive relevant job recommendations in your inbox.

Principal Software Engineer Jobs in Seattle, WA

Jobs

Sr. AI Software Engineer (C#/.Net, infrastructure & startup exp. req'd) - 100% REMOTEJobot

Sr. Software EngineerWidenet Consulting

Senior Software Development Engineer – Mobile & Living Room AppsSinclair Broadcast Group

Principal Software Engineer, Digital Agent (AI-Assisted Development)Infoblox

Principal Software Engineer, Data AnalyticsInfoblox

Lead EPC Substation Project EngineerLeidos

Principal GenAI Software EngineerT-Mobile USA, Inc

Full Stack Principal Software Engineer, Gen AIT-Mobile USA, Inc

Principal Software Engineer - SearchFlightSafety International Inc

Principal Software Engineer II, Horizon CatalogSnowflake Inc.

Principal Software Engineer II - Product SecuritySnowflake Inc.

Principal Software EngineerFlightSafety International Inc

Principal Software Engineer, FGA Core (Auth0)OKTA

Principal Software EngineerDAT Solutions, LLC

Principal Software Development Engineer / Senior Software Development Engineer - Full Stack - JR-010Workday, Inc.

Principal Software Development Engineer - AMZ13289.8Amazon Web Services, Inc.

Software Engineer Principal I - RoboticsTerex Corporation

Principal Software Engineer II - Interoperable FoundationsSnowflake Inc.

Principal Engineer, Public Cloud / R&D CoreCloudera Government Solution

SENIOR PRINCIPAL ENGINEER - OPTICAL SYSTEMS ARCHITECTURE - TeraWaveBlue Origin LLC

Sr Principal Aerospace Systems Engineer - Program ManagementBlue Origin LLC

Principal Systems Engineer - New Glenn Program ManagementBlue Origin LLC

Principal AI Systems Engineer - GPU Reliability & Customer DebugAdvanced Mircro Devices, Inc.

Senior Software Engineer II - Applied AISmartsheet

Principal Engineer, DataT-Mobile USA, Inc

Senior Software EngineerCambia Health Solutions

Principal Software Engineering - WindowsOS PlatformQualcomm Incorporated

Principal Engineer, Cyber Threat IntelligenceT-Mobile USA, Inc

Principal AI EngineerT-Mobile USA, Inc

Principal Customer Debug EngineerAdvanced Mircro Devices, Inc.

Reactor Systems Lead Principal EngineerTerraPower

Principal Opto-Mechanical Engineer - TeraWaveBlue Origin LLC

Principal Microwave Engineer - TeraWaveBlue Origin LLC

Principal Thermal Systems Engineer - Lunar PermanenceBlue Origin LLC

Principal DSP Engineer - Digital Beamforming Systems - TeraWaveBlue Origin LLC

Principal Engineer, Regulatory Construction OversightTerraPower

Senior Software Engineer - TeraWaveBlue Origin LLC

Sr. Software Engineer - Cloudera ManagerCloudera Government Solution

Principal Machine Learning Engineer- Search QualitySnowflake Inc.

Sr Software EngineerT-Mobile USA, Inc

Sr Software Engineer- iOST-Mobile USA, Inc

Sr Software Engineer - Telecom BillingT-Mobile USA, Inc

Sr Software Engineer - Mobile DevOpsT-Mobile USA, Inc

Sr. Software Engineer - Billing PlatformT-Mobile USA, Inc

Senior Software Engineer 1, Mobile DevelopmentMeredith Corporation/Allrecipes

Senior Software Engineer (Backend APIs/Platform)T-Mobile USA, Inc

Principal Propulsion Engineer, Combustion DevicesBlue Origin LLC

Principal Engineer - Grid Analytics & Technology SolutionsPuget Sound Energy, Inc

Digital Twin Principal Engineer, LeadTerraPower

Sr Software Engineer- AndroidT-Mobile USA, Inc

Resume Resources

Similar Job Searches