Top Principal Engineer Jobs in Seattle, WA

The Principal Electrical Systems Engineer will lead design and validation of electrical and embedded modules, contribute to system architecture, and evaluate emerging technologies for product innovation.

The Principal Software Engineer will lead teams in developing full-stack applications, enhance services, drive architectural discussions, and mentor other engineers.

The Principal Software Engineer will architect and lead the development of scalable systems, drive technical excellence, mentor teams, and promote best practices at a fintech company.

Lead high-impact initiatives for a product platform, architecting security systems, mentoring engineers, and optimizing distributed infrastructures across teams.

The Principal Site Reliability Engineer - Cloud is responsible for managing and optimizing SaaS cloud infrastructure, ensuring performance, reliability, and security, while automating operations and collaborating within teams.

Lead Nordstrom's platform security vision, establishing security principles and architectures, mentoring staff, and quantifying security investments against business risks.

Drive the design and operation of the Gradient AI platform, focusing on architecture, technical excellence, and innovation. Collaborate across teams, mentor engineers, and lead initiatives for scalability, performance, and reliability in AI/ML development.

As a Principal Software Engineer, you'll design backend services using Go, ensure code quality through testing, mentor junior engineers, and collaborate on system solutions.

The Principal Rust Developer will design and implement distributed systems using Rust for high-performance data processing, collaborate across teams, and mentor junior engineers.

Lead the technical and strategic evolution of the financial services platform, driving alignment across technology and business teams while mentoring engineers and improving engineering processes.

Lead the technical strategy for developer tools in a financial services company, focusing on AI-enabled development practices. Responsibilities include architectural design, mentorship, and driving innovation in software development.

As a Principal Software Engineer on the SRE team, lead best practices adoption, mentor engineers, and improve system reliability and user experience through automation and collaboration.

As a Principal Software Engineer, you'll architect and code backend services and ML models, integrate them with Salesforce, and mentor junior engineers.

As a Principal Software Engineer, you will lead the development and architecture of Upstart's Core GenAI Platform, ensuring technical excellence and cross-team collaboration while mentoring junior engineers and influencing business strategy.

Lead architecture, design, and implementation of scalable Enterprise AI applications while managing a team of engineers and driving technical strategies for GenAI solutions.

The Principal Software Engineer will design and implement scalable backend services, lead technical initiatives, and ensure high availability across critical systems.

The Principal Software Engineer will design and implement systems for the advertiser experiences at Snap, lead technical vision, mentor engineers, and innovate on creator marketplace products.

Lead technical and strategic initiatives across the platform, resolving organizational issues, mentoring engineers, and aligning technical vision with business goals.

The Principal AI/ML Engineer will develop machine learning models for campaign optimization in AdTech, collaborating across engineering and product teams to enhance advertising capabilities.

As a Principal Security Engineer in Data Security, you will spearhead Upstart's data security program, architect software solutions, partner cross-functionally, and mentor teams while ensuring effective protection of sensitive data.

As a Principal Engineer on the Behaviors team, you will guide the technology direction, lead complex initiatives, and mentor engineers to enhance autonomous vehicle capabilities through ML solutions.

The role involves developing and verifying SoCs using ASIC and FPGA technologies, creating test plans, and debugging with team collaboration.

Lead the enablement of Arm's advanced architectural features. Collaborate on compiler development and optimize performance across platforms while driving software transformation and customer strategies.

As a Principal Software Engineer, you will architect AI-enabled systems, mentor teams, and guide technical decisions for scalable products.

Lead and mentor teams to architect, design, verify, prototype, and validate complex ASICs/SoCs and multi-FPGA systems using modern HDL, verification methodologies (UVM), timing/physical flows, and hardware-in-the-loop integration to meet mission requirements.