Top Senior Software Engineer Jobs in Seattle, WA

Design and maintain controller processes for safety-critical hardware, focusing on fast, reliable binaries and efficient inter-process communication.

Design, build, and maintain security products and infrastructure: real-time detection engines (Flink/Kafka), high-performance APIs (Go/Node.js), streaming analytics, Kubernetes at hyperscale, and petabyte-scale data pipelines. Lead technical designs, collaborate with security teams, and mentor junior engineers.

The Senior Software Engineer will develop backend services for the Decision Intelligence Platform, ensuring high reliability and scalability, and collaborate across teams to enhance decision-making processes at Remitly.

As a Senior Backend Software Engineer, you'll build cloud services, develop machine learning support tools, and collaborate with engineering teams on AI and robotics products.

The role involves designing and building automated compliance pipelines, implementing policy-as-code, and integrating security scanning into CI/CD processes to ensure compliance and secure AI infrastructure.

Design, develop, and maintain high-performance microservices using Java and Spring Framework. Mentor junior engineers and drive technical projects.

As a Senior Software Engineer, you will design and maintain software that improves interaction with cloud infrastructure, focusing on AWS, Kubernetes, and Istio, while providing technical leadership and optimizing performance.

The role involves leading the development of backend services for a financial platform, requiring collaborative problem-solving, architectural expertise, and the ability to translate business requirements into technical solutions.

The Senior Software Engineer will build backend services for a metadata architecture, ensuring code quality, collaborating with stakeholders, and leading technical evolution while contributing to team efficiency.

As a Senior Software Engineer, you'll develop Go-based services for managing large-scale GPU data center infrastructure, focusing on automation, APIs, and monitoring tools.

Develop AI agents and applications, manage backend and frontend technologies, integrate complex data systems, and enhance user experience across CoreWeave's platforms.

The Senior Engineer will enhance CoreWeave’s Benchmarking & Performance team, focusing on Kubernetes-native benchmarking services, performance analytics, and mentoring junior engineers to ensure high-quality benchmarks.

As a Senior Software Engineer, you will design and develop security products, build high-performance APIs and microservices, and lead complex security features from conception to production.

As a Senior Software Engineer, you will lead the development of crypto products, participate in architecture shaping, mentor engineers, and ensure service scalability and availability.

The Senior Software Engineer will lead technical design and development of developer productivity tools, mentor team members, and drive innovation in fintech solutions.

As a Senior Software Engineer for the Pricing Platform, you'll develop and maintain systems for real-time transaction pricing globally, focusing on performance and ease of updates for pricing models.

As a Senior VoIP Infrastructure Engineer at Hiya, you will own voice infrastructure, optimize call quality, and scale solutions for carrier partnerships while collaborating with product teams to drive voice capabilities for both consumer and enterprise users.

As a Senior Software Engineer, you will design and implement backend systems, own APIs, and enhance platform reliability. You'll collaborate with cross-functional teams to improve data quality and performance, and mentor other engineers in developing scalable systems.

The Senior Software Engineer is responsible for designing and building scalable network services, solving complex challenges in distributed networking, and enhancing system performance for DigitalOcean's infrastructure.

The Senior Software Engineer will develop and maintain the marimo open-source notebook, focusing on backend design, library development, and community engagement.

The Senior Software Engineer will design and build secure sandboxed runtime environments for Kubernetes, focusing on GPU workloads and ensuring performance and security in multi-tenant configurations.

Lead engineering efforts for innovative storage solutions, develop and support distributed systems, automate and troubleshoot production systems, and collaborate with a motivated team.

The Sr. Software Engineer, Mobile will develop user-centric mobile applications for farmers, collaborating with cross-functional teams to enhance usability and reliability of products.

Lead the development of innovative storage solutions, support distributed systems, and collaborate with peers to enhance cloud-scale storage platforms.

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.