Top Staff Engineer Jobs in Seattle, WA

Lead design and delivery of full-stack receiver-facing financial products. Define architecture, APIs, and data models; integrate with money-movement, identity, compliance, and pricing platforms; embed security and regulatory controls; mentor engineers and drive reliability, observability, and SLOs. Operate AI-native development workflows.

The Phased Delivery SME will design and govern the phased delivery model for AI data centers, ensuring safe and timely operational readiness across construction, commissioning, and IT deployment.

Design and implement a distributed query optimization system for MongoDB. Research query systems, architect features, write and review production-quality C++ code, debug large codebases, coordinate cross-team integrations, and mentor engineers while shaping long-term roadmap and performance improvements.

Serve as the end-to-end Test Director for integrating, verifying, and flight testing Hivemind autonomy on small UAS. Own test readiness and execution, plan and run fly-fix-fly campaigns, set test strategy and success criteria, lead cross-functional teams, manage risk and safety-of-flight, define test infrastructure (SIL/HIL/simulation), approve procedures, document results, and report to leadership and customers.

Lead the evolution of CoreWeave AI Object Storage's security, manage cross-functional teams, and develop secure cloud-scale storage systems.

Lead the developer experience roadmap and own multi-language SDKs and the code-generation pipeline. Design CI, release automation, observability, and tooling (CLI, starter repos). Improve cross-language parity, docs, and developer onboarding; remove systemic friction and represent DX to Product, Engineering, and Partnerships.

Own and evolve Babylist's AWS infrastructure and developer platform using Terraform and Kubernetes. Improve CI/CD reliability, support engineers across environments, define monitoring and alerting standards, lead incident response and postmortems, and shape platform architecture to scale for millions of users.

Lead technical strategy and implementation for production database and storage systems in the cloud. Architect, scale, and operate high-volume databases (self-managed and AWS-managed), own reliability, observability, backup/recovery, DR, incident response and RCA, mentor engineers, and participate in on-call rotation.

Lead the design of distributed systems, drive large initiatives, and enhance technical architecture at Whatnot, fostering rapid growth and stability.

Lead architecture, build, test, and scale Gusto's iOS app and mobile infrastructure. Improve build pipelines, automated testing, release processes, and foundational services (push, accessibility, localization). Collaborate across product, design, security, and infrastructure teams; prototype, iterate, and launch customer-focused features while mentoring engineers.

Own architecture and technical direction for Headway's Journey communications platform: design the decision engine, experimentation layer, channel orchestration, unified message ledger, and productionize LLM-powered personalization across multi-vendor delivery systems to improve patient and provider engagement.

As a Forward Deployed Engineer at Remitly, you will leverage AI agents to build applications, translate customer needs, and evaluate outputs for quality and security, focusing on delivery speed and robustness.

Own and build Headways experimentation platform: assignment, exposure, identity resolution, feature flags, and data pipelines. Drive technical direction, reliability, and company-wide experimentation practices, integrate AI for diagnostics, and enable market-level tests across teams.

The role involves leading the Code Gen team to modernize legacy applications using AI-powered tools, ensuring system scalability and efficiency through collaboration and strategic technical decisions.

Lead integration, validation, and fielding of advanced weapon capabilities on X-Bat across the full lifecycle. Define system behaviors and architectures, coordinate cross-functional integration, support lab/ground/flight tests, perform troubleshooting and root-cause analysis to reduce integration risk and accelerate capability delivery.

Own and maintain native C++ build systems for autonomous aircraft. Improve developer velocity by reducing build/test cycle time, integrate CI with HIL and simulation, implement monitoring and alerts, troubleshoot build/test failures, and collaborate with engineers to design and deploy DevEx/DevOps solutions.

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

Lead aircraft-level thermal analysis and characterization for VTOL unmanned aircraft. Develop and validate analytical and CFD models, run trade studies, define requirements, plan and analyze thermal tests, mentor teams, and mitigate aircraft thermal risks to meet mission-critical aerospace requirements.

Lead design and development of advanced electrical systems for autonomous aircraft, including circuit and subsystem design, part selection, schematic capture, simulation, verification, debugging, and production releases. Integrate embedded systems and sensors for autonomy, coordinate cross-functional teams, mentor engineers, define technical requirements, and develop automated test solutions to improve hardware reliability and production readiness.

Lead survivability engineering for autonomous aircraft: design and optimize low-observable features, perform EM signature modeling and RCS testing, partner with multidisciplinary teams and materials scientists, translate threats into survivability requirements, and support assessments and milestone decisions throughout the program lifecycle.

Lead architecture and delivery of developer tooling, CI/CD and cloud infrastructure to improve engineering velocity. Design scalable microservice components, optimize pipelines, deploy AI-driven developer productivity features, mentor engineers, set standards for observability, testing, and change management, and collaborate with cross-functional teams to measure and improve developer experience.

As a Staff Software Engineer, you'll design and operate scalable backend services, collaborate across teams, and ensure high system availability.

Lead hardware design and vendor projects, develop hardware automation and orchestration, troubleshoot and triage Tier 3 fleet hardware issues, participate in 24/7 on-call rotation, improve firmware/configuration automation, mentor teammates, and support scaling of data center server platforms and components.

Architect and deliver scalable, secure systems across teams; solve complex cross-team problems; lead large technical initiatives; evaluate emerging technologies; mentor engineers; align technical direction with product and business outcomes while balancing performance, maintainability, and cost.

Design, build, and scale the Substantiation Platform for validating and reconciling financial data. Provide architectural leadership and mentor engineers.