Top Senior Software Engineer Jobs in Seattle, WA

The Senior Software Engineer will design and build a performance data lake, manage telemetry schemas, extend time-series databases, create BI dashboards, optimize query performance, and ensure authoritative reporting.

Lead design and evolution of data interfaces, mentor team, support integrations for live clients, and enhance data tools for scalability and efficiency.

As a Senior Software Engineer, you'll support projects from conception to completion, build and extend React applications, and contribute to Vetcove's platform development.

Design and build scalable systems for Upstart Bank, translating regulatory requirements into software, improving reliability, and ensuring audit-readiness while collaborating with multiple teams.

Lead the design, development, and implementation of complex secure web applications, ensuring functionality, performance, and security standards are met. Collaborate in an Agile environment and oversee project aspects to fulfill user requirements.

Design and develop Linux software for a cybersecurity product, owning features from design to delivery while collaborating with a distributed team.

The role involves designing and developing core features for the Linux sensor in CrowdStrike's security platform, collaborating with teams across the company, and maintaining software quality for cross-platform delivery.

Design and implement distributed storage solutions for AI workloads, optimize performance, and collaborate with teams to enhance storage capabilities.

As a Senior Software Engineer in Cluster Orchestration, you'll lead multiple services, drive improvements in performance and reliability, and mentor junior engineers.

Design and maintain scalable backend systems integrating hardware with machine learning. Optimize data processing and deploy microservices for high-performance applications.

As a Senior Software Engineer, you'll build systems for route planning, dispatch, and real-time tracking for various logistics and operations, improving dispatcher tools and user experiences.

As a Senior Software Engineer in ZT1, you will lead backend system development, manage projects, and influence product direction in a fast-paced, AI-centric environment.

Responsible for leading a team to improve developer productivity, managing projects, and ensuring high-quality code delivery while collaborating across teams.

The Senior Software Engineer will enhance Kubernetes-native benchmarking services while improving performance and reliability, mentoring junior engineers throughout the process.

Design and build scalable distributed systems for financial transactions, incorporating AI tools and ensuring reliability and security of production systems while collaborating with cross-functional teams.

As a Senior Software Engineer, you'll design and build data models, APIs, and backend services for a complex datacenter infrastructure platform, while ensuring high performance and scalability.

The Senior Software Engineer II, AI/ML leads designs, enhances architecture, optimizes multilayer systems, mentors engineers, and ensures service reliability at CoreWeave.

As a Senior Software Engineer, you will design and develop systems for post-transaction customer experiences, mentor engineers, and improve operational excellence while collaborating with cross-functional teams.

As a Sr. Software Engineer in Embedded Systems, you will design, develop, and maintain embedded software for robotics products, collaborate with cross-functional teams, and solve complex engineering challenges.

As a Senior Software Engineer on Core Pricing, you'll design and implement scalable services for loan pricing using advanced AI, collaborating with cross-functional teams to enhance Upstart's pricing systems.

As a Senior Software Engineer, you will lead frontend initiatives using React and React Native, collaborating with product and design to deliver user experiences, while mentoring teammates and shaping frontend architecture.

As a Senior Software Engineer, you will design and implement AI agents to automate DevOps and DBA workflows, ensuring agents operate safely and effectively in real infrastructure environments.

The role involves building core infrastructure for orchestrating intelligent agents, defining platform primitives, and ensuring systems scale and reliability. Collaboration with internal teams and end-to-end system ownership are essential.

As a Senior Software Engineer, you'll implement collaboration features, support team architecture, work across tech stacks, and improve developer experience.

As a Senior Software Engineer in Trust & Safety, you'll analyze threats, design systems for abuse detection, and collaborate with teams to implement scalable defenses.