Top Senior Engineer Jobs in Seattle, WA

Leads aircraft reliability engineering across development, integration, testing, and operations. Establishes reliability requirements and budgets, performs FMEA/FMECA, FTA, RBD, Weibull, and reliability prediction analyses, tracks reliability metrics, supports system safety and testing, reviews supplier data, leads FRACAS activities, identifies design improvements, and communicates risks and corrective actions to engineering leadership and customers. Mentors engineers and improves reliability processes.

Leads cybersecurity for airborne aerospace and defense platforms, including architecture, requirements, threat modeling, vulnerability assessments, attack-surface analysis, secure boot, authentication, encryption, key management, and defense-in-depth. Oversees DoD Risk Management Framework activities, authorization evidence, cybersecurity verification, penetration testing, supplier risk reviews, and corrective actions. Partners with engineering teams, suppliers, customers, and program leadership to ensure secure, resilient, safe, and mission-effective aircraft systems.

Designs, implements, and operates hybrid, multi-cloud network infrastructure across AWS, Azure, GCP, and on-premises datacenters. Responsibilities include hub-spoke architectures, cloud interconnects, BGP routing, hybrid DNS, firewalls, Terraform infrastructure-as-code, Python automation, SRE ownership, on-call support, incident analysis, technical documentation, and mentoring associate engineers.

Leads the Global Transfer Flow engineering organization, including hiring, coaching, technical strategy, architecture modernization, API and data model development, configurable workflows, reliability, delivery planning, and cross-team collaboration. The role modernizes regional transfer systems into a shared platform supporting mobile, web, conversational, and partner experiences while promoting safe AI adoption and maintaining financial-grade security, accuracy, and reliability.

Designs, builds, tests, and troubleshoots full-stack cloud-native applications on AWS. Translates client needs into technical solutions across architecture, development, testing, and delivery; builds scalable infrastructure and integration patterns; applies AI-enabled engineering methods; and supports modernization initiatives. The role also reviews technical work, mentors junior engineers, collaborates with architecture teams, and helps deliver cloud, data, and analytics solutions.

Design and release propulsion hardware for the Ranger UAV across engine, fuel, oil, and bleed air systems. Develop CAD models, drawings, and assemblies; apply GD&T, engineering analysis, and design-for-manufacturing principles. Support production, machining, assembly, testing, flight operations, configuration management, root-cause investigations, and iterative hardware improvements. Collaborate closely with propulsion, controls, airframe, technicians, and flight-test teams.

Design, develop, and deploy scalable microservices and event-driven systems for T-Mobile’s business order management platform. Manage Azure cloud infrastructure, build high-performance REST APIs, integrate backend systems, optimize order processing, and support subscription lifecycle workflows. Conduct code reviews, performance tuning, issue resolution, and technical writing while mentoring distributed engineering teams and collaborating cross-functionally.

Ensure digital infrastructure reliability and resilience by automating deployment and operational processes, managing incidents, conducting root cause analysis, and preventing recurring issues. The role uses programming, scripting, CI/CD, capacity planning, and cloud-native technologies to improve system stability, reduce downtime, and enhance operational efficiency. Responsibilities also include troubleshooting, systems recovery, collaboration with problem management, continuous learning, and mentoring.

This role involves developing and maintaining CI/CD pipelines, enhancing deployment processes, ensuring infrastructure reliability, and promoting best practices within the AIDR platform team.

Architects, deploys, and operates scalable data platform infrastructure supporting analytics. Responsibilities include administering Airflow and Superset, managing Terraform infrastructure, building CI/CD pipelines, implementing security and compliance controls, developing dbt data models, cataloging assets in OpenMetadata, automating with Python, and mentoring engineers. The role requires extensive infrastructure and data engineering experience, cloud expertise, container orchestration, and eligibility for CJIS clearance.

Provides advanced technical support for enterprise wireless and network products. Designs and executes product validation testing, defines acceptance criteria, triages issues, and resolves Tier 3 customer-impacting problems. Supports customer integrations, develops tailored technical solutions, and manages defects through production resolution. The role requires expertise across cellular core and RAN networks, wireline infrastructure, LAN/WAN connectivity, cloud technology, ITIL incident management, and cross-functional engineering collaboration.

Design and implement high-performance distributed control plane services and microservices in Go. Lead complex technical initiatives, develop gRPC and REST interfaces, solve distributed-systems and operational challenges, mentor engineers, improve architecture and workflows, and support production systems through on-call monitoring and incident response.

Secure Zapier’s production infrastructure by identifying and mitigating risks, hardening cloud environments, improving Terraform and CI/CD security, managing vulnerability and misconfiguration tools, enforcing least-privilege access, strengthening data governance, hardening Kubernetes images, and supporting incident response. The role collaborates with Platform, Engineering, and Security teams in a remote-first environment.

Leads enterprise network security architecture, engineering, and modernization across cloud and on-premises environments. Designs firewalls, WAF, DDoS protection, Azure connectivity, microsegmentation, Zero Trust, SASE, and SD-WAN solutions. Serves as a Level 3 incident escalation point, drives root-cause analysis and resilience improvements, establishes automation and DevSecOps standards, and mentors engineers. Partners with stakeholders and vendors to deliver secure, scalable network security platforms.

Own the reliability, scalability, and evolution of Zapier’s database and caching infrastructure. Responsibilities include operating MySQL, PostgreSQL, Redis, and ElastiCache; managing infrastructure with Terraform; building observability, automation, SLOs, and golden paths; participating in on-call; supporting product teams; improving performance and resilience; leading design reviews; documenting practices; and mentoring engineers.

Conduct structural analysis and testing for advanced UAV airframes and components. Build finite element models, perform static, modal, fatigue, and vibration analyses, validate results with hand calculations, define load cases and design margins, analyze telemetry and test data, and collaborate with multidisciplinary engineering teams to optimize lightweight structures for strength, safety, weight, and manufacturability.

Designs, implements, and operates enterprise IAM solutions across Entra ID, Active Directory, cloud, SaaS, and data centers. Manages SSO, MFA, PAM, PIM, RBAC, identity governance, lifecycle controls, provisioning automation, third-party access, and non-human identities. Troubleshoots authentication and federation issues, supports identity-threat investigations, maintains technical documentation, and contributes to audit and compliance activities.

Leads the Guidance and Control team for an autonomous fixed-wing aircraft, owning technical direction, staffing, roadmaps, architecture, simulation, verification, integration, and flight-test readiness. Designs control laws, guidance systems, flight-mode logic, 6DOF simulations, and autonomy interfaces. Oversees requirements-based verification, risk mitigation, cross-disciplinary engineering trades, and analysis of ground and flight-test data. Requires deep flight-controls expertise, C++ proficiency, and experience leading complex aircraft development through integration and flight testing.

Lead architecture, requirements, systems integration, and flight testing for next-generation autonomous UAS platforms. Define system behavior, modes, fault responses, and subsystem requirements; use MBSE tools for modeling and trade studies; integrate avionics, autonomy, propulsion, sensors, and mission systems; support safety analysis, performance validation, airworthiness, and operational deployment. Collaborate with engineering teams, DoD stakeholders, industry partners, and government agencies to deliver mission-ready aircraft.

Integrate and characterize multimodal navigation sensors, including IMUs, GNSS receivers, and cameras, from specification through production. Develop calibration procedures, test plans, data-processing tools, and sensor trade studies. Collaborate across electrical, mechanical, firmware, and software disciplines on interfaces, mounting, thermal and vibration considerations, and sensor fusion implementation. Debug hardware-software issues, review schematics, CAD, and code, and support hands-on laboratory testing. Occasional travel is required for supplier coordination and testing.

Build and operate scalable, reliable full-stack systems for high-value international money transfers across web, mobile, and backend services. Lead architecture for complex customer experiences, meet strict availability and latency goals, use AI-native development practices, collaborate with product and design teams, and mentor engineers while strengthening coding, testing, observability, and system design practices.

Lead development, testing, code reviews, and architecture for highly available, scalable software services. Translate user stories into technical solutions, collaborate with product and project leads, mentor engineers, contribute to technical culture, and identify new technology initiatives. The role requires backend development, cloud platforms, infrastructure as code, databases, testing, observability, workflow orchestration, and collaborative Agile software development.

Design, architect, and implement scalable software solutions, including backend applications, microservices, APIs, databases, and data pipelines. Develop secure server-side systems, testing frameworks, dashboards, and data visualizations. Collaborate with cross-functional and senior engineering teams, conduct unit, integration, and end-to-end testing, and mentor junior engineers while promoting engineering best practices.

Build performant, scalable backend applications in cloud-based microservice architectures using Java, Kotlin, AWS, and related technologies. Shape technical architecture, own solutions for new product requirements, deliver highly available production services, and collaborate with stakeholders and technical teams. Mentor engineers, generate technology initiatives, and promote a learning environment. The role is hybrid in Seattle with part-time telecommuting available.

Build and operate foundational platform services, libraries, and tooling for large-scale distributed systems. Lead reliability, scalability, observability, performance, resilience, cost optimization, and infrastructure-as-code initiatives across product teams. Define SLOs and error budgets, resolve complex incidents, improve architecture, mentor engineers, and influence organization-wide technical decisions. The role involves hands-on backend engineering, production coding, multi-cloud platforms, and automation to eliminate operational toil.