Top Software Engineer Jobs in Seattle, WA

Build and scale consumer-facing mobile and web applications and backend services. Own features end-to-end across frontend and backend, optimize databases and queries, integrate third-party APIs, implement algorithms for risk and transaction evaluation, improve reliability and CI/CD, and contribute to testing, monitoring, and internal tools to support customer operations.

As an iOS Mobile Software Engineer, design and implement projects, collaborate with teams, and improve user experiences, focusing on iOS best practices.

The role involves leading application performance improvements across multiple platforms, focusing on measurable metrics and driving engineering standards and workflow optimization, using both hands-on coding and strategic influence.

As a Software Engineer, you'll develop software using Ruby, Javascript, and support AWS infrastructure. Responsibilities include maintaining and building applications, contributing to high-end software releases, and mentoring other engineers.

Lead UI architecture and design for responsive web applications; build reusable components with Angular/React/Vue and TypeScript/JavaScript; integrate UIs with RESTful microservices; enforce accessibility, security, testing, and CI/CD standards; mentor developers and collaborate with UX, backend, and DevOps teams in Agile environments.

Build and improve the MongoDB Documentation Platform by developing internal infrastructure, integrations, and features to enhance accessibility, discoverability, and user experience. Analyze platform performance, lead small-to-medium features, collaborate with partner teams, and improve platform reliability, scalability, and maintainability for documentation consumers and contributors.

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

Develop a platform for liquidity and loan collateralization. Responsibilities include building and integrating data pipelines, creating user experiences, and collaborating with teams for system design.

Lead architecture and scaling of high-throughput, fault-tolerant data pipelines and feature stores for risk decisioning. Build real-time and batch systems, ensure data quality and observability, partner with ML and risk teams, and mentor engineers to enable fraud detection and model-driven automation.

Develop and maintain partner integrations for global pay-in/pay-out networks. Build scalable, well-tested cloud services using AI-assisted development, observability, and modernized architectures. Collaborate with PMs, operations, and global partners; write specs, participate in design reviews, mentor engineers, and support production reliability.

The Senior Staff Software Engineer will lead the architecture and implementation of AI-powered developer tools and workflows in a cloud environment. Responsibilities include mentoring, driving innovation, managing project delivery, and fostering a culture of continuous improvement.

Design and build a proto-driven code-generation pipeline to emit Go SDKs, CLI commands, and Terraform resources. Own API service framework components end-to-end, enforce API standards, collaborate with teams on API design, improve developer experience, and mentor engineers.

Build and operate Go-based backend services and APIs to manage hardware lifecycle (RMA, data center operations, node repairs). Design scalable, reliable microservices, integrate vendor APIs, manage databases for operational and reporting use cases, and deploy/operate services on container platforms.

Design and scale critical, highly-available services; set technical direction across teams; apply best practices for availability, scalability, cost, and operational excellence; leverage AI tools and high-velocity workflows; mentor engineers and solve ambiguous, company-wide technical problems.

Lead technical direction and architecture for US and Canada regional customer experiences. Drive cross-team initiatives, mentor engineers, elevate reliability/observability/security, and embed AI-native practices. Stay hands-on in TypeScript, React/React Native, Java/Kotlin, and Go while partnering with product, design, and analytics to shape roadmaps.

Build reusable, scalable front-end and full-stack features (React Native, TypeScript, Go/Java/Kotlin, AWS). Rapidly prototype, collaborate with product/design/analytics, contribute to architecture, code reviews, mentoring, and deliver highly reliable, customer-centric remittance experiences.

Design, build, and operate full‑stack services and customer experiences. Own system and API design, implement frontend/backend code, ensure observability and reliability, collaborate cross‑functionally, apply data‑driven decisions, and safely integrate AI/ML capabilities.

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.

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

As a Video Engineer at Whatnot, you'll enhance the platform's video services, develop seller tools, and implement innovative video strategies to improve user engagement and experience.

The role involves developing ML systems, designing low-latency infrastructure, and collaborating on AI/ML initiatives while ensuring reliability and performance at scale.

As a Software Engineer in Data, you will enhance core product experience, optimize integrations, manage data systems, and support scalable services.

Build and scale pay-in/pay-out partner integrations across global regions; deliver well-tested, observable, cloud-native services; use AI-assisted development; mentor, review code, write specs, collaborate with PMs and Operations, and represent the team to global partners.

Build and maintain partner integrations for global pay-in/pay-out networks; deliver scalable, observable cloud services; use AI-assisted development; write specs and design reviews; mentor and interview; collaborate with PM, Ops, and global partners to expand Remitly's payments network.