Top Backend Engineer Jobs in Seattle, WA

The Staff Backend Engineer is responsible for designing and developing AI platforms, backend services, and APIs, ensuring scalability and reliability while collaborating with cross-functional teams and mentoring engineers.

As a backend engineer, you will enhance data collection systems to ensure reliability and scalability, working closely with engineering and mission teams.

Lead architecture, build, and operate a serverless AWS backend (Python, Lambda, CDK, DynamoDB, S3) supporting APIs, event processing, integrations (EHR/CRM/eCommerce/3PL), observability, security, and compliance. Provide technical leadership, drive platform decisions, identify risks and scalability bottlenecks, and establish backend engineering best practices across systems and teams.

As a Backend Engineer at Drivetrain, you'll tackle challenging backend application problems, focusing on system design, algorithms, and production services while contributing to a cutting-edge technology stack.

As a Backend Engineer, you'll design and maintain APIs for global money management, collaborate with teams, and mentor engineers.

Lead architecture and technical strategy for an internal platform that provides operational visibility into high-volume fund movements. Drive AI-first tooling, build fault-tolerant search and remediation systems, align cross-functionally, and elevate engineering quality through mentorship, design reviews, and process improvements.

Design, build, and operate scalable, reliable backend services and event-driven systems for Fetch's ads, rewards, and offer platforms. Own APIs, eligibility and attribution logic, reward fulfillment, observability, platformization, and cross-functional architecture decisions to support high-throughput consumer experiences and revenue-generating systems.

The Backend Engineer will develop intricate backend systems, build performant APIs, and contribute to technology innovation at Entefy.

Design and build robust backend services and secure APIs for finance and reader applications. Implement authentication, payments, subscriptions, and finance workflows. Design Postgres/Redis schemas, integrate with financial APIs (BSE Star MF, NSE) and DRM services, and ensure compliance-friendly data handling.

The role involves designing and expanding backend systems, mentoring engineers, and executing technical strategies to modernize architecture and improve system performance.

The Backend Software Engineer will develop data ingestion pipelines, implement observability tools, and provide technical support while improving team collaboration.

As a Backend Engineer, you'll design, develop, and maintain SaaS backend systems, contribute to APIs, and collaborate with diverse teams.

Design, build, and scale backend services and cloud infrastructure. Own product features, collaborate across teams, deploy services at scale, design scalable storage schemas, and implement RBAC and security into architectures.

The role involves owning the architecture and technical direction of Payment Rails infrastructure, designing high-reliability systems for global payment processing, and leading cross-functional collaborations to create efficient, compliant solutions. Responsibilities also include mentoring team members and enhancing operational excellence through AI-driven improvements.

The Staff Backend Engineer will architect and scale backend systems, lead identity infrastructure, mentor the team, and ensure system reliability for Stack AI's platform.

Build and improve frontend experiences for login, signup, OAuth, account security, and multi-user/org support. Contribute to migrating main views to React Native, design high-performance React/TypeScript UIs, collaborate with backend engineers and product teams, and write well-tested, reliable code to maintain low-latency user surfaces at scale.

Lead long-term technical vision and roadmap for the Overseer platform to ensure correctness across Coinbase fund flows. Own architecture, design and delivery of real-time detection, invariant frameworks, and partner APIs. Drive cross-team alignment, set engineering standards, mentor engineers, lead P0 initiatives, and apply generative AI responsibly to scale automated guardrails and enforcement capabilities.

As a Staff Software Engineer at Coinbase, you'll build systems for crypto trading, mentor other engineers, and ensure product excellence by architecting robust, highly available services.

Design APIs, build scheduling algorithms for GPU utilization, create resource management systems, and collaborate with frontend engineers for AI infrastructure.

Lead technical implementation of custom web projects, focusing on WordPress back-end development, while ensuring quality, security, and collaboration with teams.

The job involves developing applications as a Java developer, focusing on both front-end and back-end development with various technologies.

Looking for Java Developers skilled in Front-end (Java, JQuery, etc.) or Back-end (Java, Spring, SOAP, REST). Requires 3 to 6 years of experience.

The role involves architecture, design, and development of Java-based systems, overseeing projects, and advising clients. Extensive experience in Java development is essential.

Seeking Java developers proficient in backend frameworks like Spring or Hibernate and frontend technologies such as HTML, CSS, and JavaScript.

The Lead Back-End Developer will oversee backend development initiatives, mentor the backend team, and collaborate with frontend teams to ensure robust backend infrastructure and optimal user experience.