Get the job you really want.

Top Principal Engineer Jobs in Seattle, WA

16 Hours Ago
Seattle, WA
Hybrid
4,800 Employees
Senior level
4,800 Employees
Senior level
Fintech • Mobile • Software • Financial Services
The Principal Engineer, Machine Learning / AI will drive technical capabilities in ML and AI across various teams, mentor staff, and implement high-impact ML/AI products. Responsibilities include collaborating with multiple teams, advocating for technical standards, and providing mentorship to data scientists while leading the company's engineering practices in ML/AI.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
13 Days Ago
Seattle, WA
Hybrid
4,800 Employees
Senior level
4,800 Employees
Senior level
Fintech • Mobile • Software • Financial Services
The Principal Engineer, Machine Learning / AI will drive technical capabilities in ML and AI across multiple teams, mentor data scientists, lead technical standards, and advocate for best practices. The role involves hands-on development of ML/AI products and collaboration across various business units to enhance systems and products.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
12 Hours Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer will oversee the lifecycle of attribution signals, design critical scalable services, coordinate large-scale projects, and ensure operational excellence across teams to support Snap’s advertising solutions.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
16 Hours Ago
Seattle, WA
Hybrid
4,800 Employees
Senior level
4,800 Employees
Senior level
Fintech • Mobile • Software • Financial Services
As a Principal Software Engineer at SoFi, you will develop distributed systems and scalable data platforms, drive architectural design, and lead cross-functional collaborations. Your work will directly influence data-driven decision-making, involve the adoption of advanced data services, and mentor team members while ensuring the company remains at the forefront of data engineering innovation.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
16 Hours Ago
Seattle, WA
Hybrid
4,800 Employees
Senior level
4,800 Employees
Senior level
Fintech • Mobile • Software • Financial Services
As a Principal Software Engineer in the Data Platform Group, you will design and develop scalable data solutions, collaborate with cross-functional teams, lead architectural sessions, oversee code quality, and guide the integration of advanced data services. Your work will significantly influence SoFi's data-driven strategies and operational excellence.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
5 Days Ago
Seattle, WA
1,400 Employees
196K-294K Annually
Senior level
1,400 Employees
196K-294K Annually
Senior level
Aerospace • Artificial Intelligence • Hardware • Robotics • Security • Software • Defense
As a Principal Mission Software Engineer at Anduril, you will develop core libraries and services for collaborative robotic systems. Responsibilities include major feature development for products like unmanned fighter jets, coordinating with hardware teams, and aligning on requirements. The role requires strong programming skills, particularly in C++, and experience in Linux environments.
Top Benefits:
401-K
Adoption Assistance
Child Care Benefits
+56 More
6 Days Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
As a Principal Software Engineer for iOS at Snap Inc, you will create high-performance mobile apps, design and implement stable software, develop new features, and evaluate technical decisions. You will collaborate with the Design team to ensure the best UI practices and perform code reviews to maintain code quality.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
6 Days Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
As a Principal Machine Learning Engineer at Snap, you will drive the technical roadmap for the Ad Ranking team, designing and scaling machine learning models to enhance monetization strategies. You'll collaborate with cross-functional teams, advocate for best practices, and influence the ML community while tackling complex technical challenges.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
6 Days Ago
Seattle, WA
Remote
250 Employees
Expert/Leader
250 Employees
Expert/Leader
Information Technology • Security • Cybersecurity
The Principal Software Engineer will design, develop, and release software features for the Huntress Core Platform, overseeing complex systems and ensuring product quality. Responsibilities include leading technical decisions, defining strategic goals, improving workflows, and collaborating with cross-functional teams.
Top Benefits:
401-K Matching
Company Equity
Continuing Education Stipend
+30 More
6 Days Ago
Seattle, WA
Remote
10,000 Employees
185K-345K Annually
Senior level
10,000 Employees
185K-345K Annually
Senior level
Cloud • Information Technology • Sales • Security • Cybersecurity
As a Principal Software Engineer in the Data Platform group, you will design and deliver self-service data enrichment platforms, optimize performance, process petabytes of data, and lead technical reviews while enhancing product stability and customer satisfaction.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+47 More
7 Days Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer will lead the Media Delivery Platform team to design, implement, and scale mobile media platforms and backend services. Responsibilities include driving media quality optimizations, collaborating across teams, advocating for best practices, and providing technical direction to impact Snap's initiatives.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
8 Days Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Machine Learning Engineer will drive the technical roadmap of Snap's Ad Marketplace, design and implement machine learning models, collaborate with cross-functional teams, stay updated with machine learning technologies, advocate for best practices, and provide technical direction for the ML community.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
8 Days Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
The Principal Software Engineer at Snap Inc. will design, implement, and scale engineering components and services, work across teams to address product requirements, advocate for best practices in system availability and performance, and provide technical direction on critical initiatives.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
8 Days Ago
Seattle, WA
5,500 Employees
208K-366K Annually
Expert/Leader
5,500 Employees
208K-366K Annually
Expert/Leader
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
As a Principal Machine Learning Engineer, you will design and implement machine learning components for Snap's ML Training Platform, optimize model training using GPUs, develop an AutoML platform, and ensure system availability and scalability. This role involves collaboration across teams to deliver innovative solutions.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
10 Days Ago
Seattle, WA
Hybrid
109,871 Employees
181K-265K Annually
Senior level
109,871 Employees
181K-265K Annually
Senior level
Digital Media • News + Entertainment
The Principal Software Engineer will work with stakeholders to design resilient, scalable architectures for Hulu's content discovery systems, mentor engineers, and manage cross-team collaborations on system design and execution, focusing on high-request services that deliver data effectively to users.
10 Days Ago
Seattle, WA
Remote
45,384 Employees
117K-216K Annually
Senior level
45,384 Employees
117K-216K Annually
Senior level
Artificial Intelligence • Insurance • Marketing Tech • Software • Analytics
The Principal SAP Reporting Configuration Engineer will analyze, develop, and configure use cases with SAP Reporting tools. Responsibilities include supporting users, maintaining and enhancing finance environments, mentoring junior team members, and consulting on complex technology and business process improvements.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+39 More
1,050 Employees
Senior level
Cloud • Software
The Principal Site Reliability Engineer on the Datastores team is responsible for the reliability, availability, and performance of mission-critical datastores, focusing on automation and operational excellence. The role emphasizes collaboration, technical vision, and mentoring while ensuring the architecture is optimized for a multi-region scale platform.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+52 More
12 Days Ago
Seattle, WA
1,050 Employees
Expert/Leader
1,050 Employees
Expert/Leader
Cloud • Software
As a Principal Software Engineer, you will guide the architectural and design direction of projects involving AI/ML workloads and cloud-based solutions. Your role will include collaborating across teams to enhance long-term strategies and operational excellence, ensuring innovative solutions for delivering Network Assurance to clients.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+52 More
13 Days Ago
Seattle, WA
Hybrid
4,800 Employees
Senior level
4,800 Employees
Senior level
Fintech • Mobile • Software • Financial Services
As a Principal Software Engineer in the Data Platform Group, you will design and implement scalable data solutions, lead architecture sessions, mentor team members, and influence data-driven decision-making throughout the organization by developing innovative technical solutions to complex business challenges.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
13 Days Ago
Seattle, WA
Remote
3,300 Employees
Senior level
3,300 Employees
Senior level
Information Technology • Security • Cybersecurity
The Solutions Engineer, Strategic Accounts at Cloudflare is responsible for the technical sale of the Cloudflare solution portfolio to maximize business value for customers. This senior-level role involves building technical relationships, understanding business-critical issues, driving technical conversations, and empowering customers in their security and network transformation journeys.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
22 Days Ago
Seattle, WA
Remote
11,000 Employees
Expert/Leader
11,000 Employees
Expert/Leader
Cloud • Information Technology • Productivity • Security • Software • App development • Automation
As a Senior Principal Machine Learning Engineer at Atlassian, you will drive the development and deployment of advanced machine learning algorithms. Responsibilities include designing system architectures, mentoring engineers, and collaborating with product and engineering teams to integrate AI functionalities across Atlassian's products.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+66 More
2 Days Ago
Seattle, WA
Hybrid
15 Employees
205K-250K Annually
Junior
15 Employees
205K-250K Annually
Junior
Artificial Intelligence • Big Data • Blockchain • Machine Learning • Software • NFT • Web3
The Principal Software Engineer will be responsible for building and contributing to the Spice.ai open-source project, designing and implementing distributed data systems, and improving the Spice.ai Cloud Platform. The role emphasizes leadership, ownership, and high standards for developing intelligent applications.
2 Days Ago
Seattle, WA
Hybrid
Senior level
Senior level
Sales
Lead the architectural design and implementation of the Data Platform, focusing on data integration, warehousing, and processing systems. Responsibilities include defining data schemas, managing AWS infrastructure, and building services and APIs, while mentoring other engineers.
10 Days Ago
Seattle, WA
Remote
1,500 Employees
169K-212K Annually
Expert/Leader
1,500 Employees
169K-212K Annually
Expert/Leader
Cloud • Information Technology • Productivity • Software • Automation
As an API Management Technical Lead, you will develop systems based on customer goals, lead an Agile team, guide system design and development, resolve customer issues, mentor engineers, and collaborate on architecture decisions.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+24 More
15 Days Ago
Seattle, WA
Hybrid
15 Employees
205K-250K Annually
Mid level
15 Employees
205K-250K Annually
Mid level
Artificial Intelligence • Big Data • Blockchain • Machine Learning • Software • NFT • Web3
As a Principal Rust Software Engineer at Spice AI, you'll design and build high-performance AI features for the Spice.ai OSS and Cloud Platform, contribute to open-source projects, and work closely with founders to enhance developer experiences and build scalable systems.
All Filters
Date Posted
Job Category
Experience
Industry
Company Name
Company Size