Top Senior Software Engineer Jobs in Seattle, WA

The Senior Full-Stack Engineer will develop backend APIs and frontend features, focusing on SQL database design, integration, and maintaining data integrity, while delivering reliable production updates.

In this role, you will lead the evolution of delivery architecture and systems, mentor engineers, and implement technical strategies to enhance user experience and scalability for Toast's delivery services.

As a Senior Software Engineer, you will manage and enhance digital tools, streamline operations, support the service team, and ensure compliance with security policies.

Join the Mobile Infrastructure team to enhance tools and pipelines for mobile apps, ensuring high-quality user experiences and facilitating developer workflows.

The Software Engineer/Senior Software Engineer will design, develop, and deliver high-quality software while supporting team collaboration and continuous improvement. They will engage in code reviews and technical discussions.

Develop maintain a specialized semantic data framework, design performant services, own features from design to delivery, and collaborate across teams.

As a Senior Frontend Software Engineer, you'll develop user-centric web applications, collaborate with teams, and ensure reliable product performance.

As a Senior Software Engineer at Upstart, you'll lead projects, work across the software stack, mentor others, and contribute to product strategies.

Lead software engineering projects, build distributed systems, secure and optimize software to handle high operation volumes in a healthcare setting.

Join Zapier's AI Tasks team to design and build features for AI-based workflows, work with cross-functional teams, and own projects from concept to deployment.

The role involves building scalable backend systems, mentoring junior developers, collaborating on REST APIs, and solving complex engineering problems.

The Senior Software Engineer will enhance Circle's blockchain systems, design and build scalable microservices and APIs, lead teams, and ensure system reliability and security in payment processes.

As a Senior Software Engineer on the Data Platform team, you'll design and build scalable data systems, focusing on ingestion, processing, and governance while collaborating with various teams to ensure reliability and performance.

As a Senior Software Engineer on the Payments team, you will lead projects in payments systems, build full-stack features, and mentor engineers, ensuring reliability and compliance.

The Senior Software Engineer will design and implement tooling to enhance engineering velocity and product quality within a web infrastructure team.

Lead a team of developers to customize PLM tools, build solutions, support deployment, and manage technical issues while collaborating cross-functionally.

As a Senior Software Engineer, you will develop and maintain high-scale data platforms, write Java code for event pipelines using Spark, and manage a new graph database to enhance data access for analytics and threat hunting.

The Senior Software Engineer will design, develop, and maintain scalable backend applications. Responsibilities include improving DevOps practices, enhancing CI/CD pipelines, and conducting post-mortems to prevent failures while driving continuous improvement in infrastructure.

Develop data replication solutions, handle distributed systems escalations, write production and test code, and mentor juniors in a collaborative team environment.

Zapier is seeking a Senior Software Engineer to develop backend and full stack solutions for their Enterprise customers, focusing on automation, AI, and improving system performance. Responsibilities include leading critical incident responses, architecting scalable APIs, and implementing features to enhance user management and observability across their platform.

The role involves defining architectural strategies for firmware on embedded platforms, enforcing coding standards, debugging firmware, and engaging with teams to develop features.

The Senior Software Engineer will design, develop, and deploy AI-driven features, addressing technical challenges, optimizing performance, and collaborating with cross-functional teams.

As a Senior Software Engineer, you'll design and deploy AI features, work with large language models, optimize performance, and collaborate across teams.

The role involves building internal developer tools, integrating AI into workflows, collaborating with engineering teams, and enhancing CI/CD processes to improve developer productivity.

As a Senior Software Engineer for Data Infrastructure, you'll design and manage core data systems, ensuring scalability and compliance while collaborating with various teams and maintaining high-performance standards.