Top Software Engineer Jobs in Seattle, WA

Develop and maintain scoped software features across user interfaces, backend services, APIs, and AI-powered workflows. Integrate AI and enterprise services, test and evaluate outputs, troubleshoot applications, and collaborate with engineers and product partners. The role emphasizes software engineering fundamentals, AI-assisted development, reliable delivery, validation of AI results, and gradual growth toward independent ownership.

Build and maintain scalable, high-performance full-stack applications for Redfin’s personalized home-search experience using React, Java, AWS, and AI coding tools. Collaborate with engineering and product stakeholders, lead projects from design through delivery, balance infrastructure and business needs, support production systems through possible on-call rotations, and mentor junior engineers.

Develop and maintain web applications for ForSaleByOwner.com. Implement features, fix bugs, write automated tests, participate in code reviews, document APIs, support users and handle data requests, and participate in on-call rotation. Collaborate with product, design, and engineering teams to ensure scalable, reliable, user-friendly software.

Develops secure, reliable, and scalable full-stack software for JPMorgan Chase’s API Marketplace. Responsibilities include application design, coding, testing, troubleshooting, architecture documentation, data analysis, system stability, and continuous improvement. The role uses Java, JavaScript, TypeScript, ReactJS, and AI-assisted development tools while following agile, security, resiliency, and responsible AI practices.

Build and maintain scalable full-stack web applications for Snap’s user-facing products. Develop interfaces and services, optimize performance, contribute to shared libraries, analyze operational and engagement metrics, and use AI-assisted workflows while maintaining code quality, security, scalability, and production readiness.

Develop Android features and customer-facing mobile experiences from design through launch. Build smooth, stable, scalable products using Kotlin, Java, RxJava, Dagger, and AI-assisted engineering workflows. Evaluate technical tradeoffs, collaborate with design, conduct code reviews, and uphold standards for correctness, security, performance, and production quality.

Develop and ship high-performance iOS applications and camera experiences for Snapchat. Responsibilities include designing and implementing tested Objective-C software, launching features, evaluating technical tradeoffs, collaborating with Design, conducting code reviews, and using AI tools while maintaining strong standards for correctness, security, performance, and scalability.

Develop and launch scalable Android features from design through implementation, creating smooth and stable user experiences. Evaluate technical tradeoffs, collaborate with design, conduct code reviews, and maintain high standards for correctness, security, performance, and production readiness. Use Kotlin, Java, RxJava, Dagger, and AI-assisted development tools. The role requires substantial software development experience and Android application expertise.

Build and maintain scalable full-stack web applications and systems for Snap products. Develop user interfaces, optimize performance and browser rendering, contribute to shared libraries, analyze operational metrics, and deliver secure, production-ready code. The role requires strong front-end and back-end development skills, testing knowledge, distributed systems experience, and the ability to use AI tools responsibly in engineering workflows.

Design, implement, operate, and scale critical backend services such as identity, social graph, and persistence systems. Collaborate across teams to deliver product solutions, test and debug code, and apply best practices for availability, scalability, security, operational excellence, and cost management. Independently deliver medium-sized features, support incident resolution, and use AI tools responsibly to improve development workflows while maintaining production-quality standards.

Build and launch scalable fullstack web applications and APIs for Affirm’s Ads Platform. Collaborate with product, design, analytics, and engineering partners to break projects into deliverable phases, make technical trade-offs, write tested and extensible code, monitor service metrics, support on-call operations, review code, and participate in team development and interviews.

Develop backend tools and systems that improve batch development, testing, workflow efficiency, and reliability. Collaborate with product, infrastructure, design, and analytics teams; break projects into deliverable phases; build scalable, well-tested code; monitor metrics; support system availability and on-call operations; debug code; conduct reviews; and contribute to engineering growth and hiring activities.

Build and ship full-stack software for CoreWeave’s internal data infrastructure and operational applications. Develop TypeScript, React, and Next.js frontends; Python services on Kubernetes; SQL queries and data models; and AI-enabled interfaces such as text-to-SQL tools, retrieval systems, and agents. Own scoped features through production, including testing and post-release fixes, while collaborating with senior engineers and internal users.

Develops secure, scalable software solutions within an agile team. Responsibilities include application design, coding, testing, troubleshooting, architecture documentation, data analysis, visualization, and operational stability. The role also uses enterprise-authorized AI-assisted development tools responsibly, validates generated outputs, improves coding practices, and supports CI/CD, resiliency, and security standards.

Build and improve high-traffic consumer web experiences using React and TypeScript. Contribute to experimentation, client-side tagging, marketing integrations, attribution, measurement, performance, testing, observability, and privacy-aware development. Collaborate with Product, Design, Marketing, Analytics, Data Engineering, and senior engineers. Break down projects, write reliable and extensible code, support operations and on-call efforts, participate in code reviews, and contribute to team growth.

Lead the design and development of ETL solutions for regulatory risk compliance at PNC, requiring advanced programming skills and collaboration on data-intensive applications.

Designs, develops, tests, and deploys scalable, resilient software solutions using Java, Spring, APIs, microservices, databases, cloud platforms, and CI/CD pipelines. Participates in architecture and code reviews, Scrum ceremonies, infrastructure and deployment work, production troubleshooting, and on-call rotations while following enterprise coding standards.

Design and implement backend APIs, microservices, and checkout platform components for Affirm’s financial products. Own system health, improve performance and reliability, collaborate across engineering teams, and contribute to technical standards, tooling, and processes. The role requires developing, testing, and shipping high-quality software at scale while making customer-centric technical decisions.

Build complete applications, workflow automations, and basic AI agents using AI coding tools. Translate customer needs into specifications, deploy solutions, measure usage and outcomes, evaluate AI-generated code for security and reliability, identify automation opportunities through customer conversations, and document effective prompts and development patterns.

Develops and deploys software solutions for US government customers, working directly with users to understand complex operational problems and apply data-driven approaches. Responsibilities include architecture design, large-scale data processing, custom web application development, customer engagement, technical strategy, and end-to-end project ownership. The role requires strong coding, collaboration, autonomy, continuous learning, and an active Secret-level or higher US security clearance, with travel as needed.

Develop and maintain backend services for OppFi’s financial technology platform. Responsibilities include building Java applications and services, collaborating in an Agile environment, conducting code reviews and testing, documenting best practices, and refining technical requirements into production-ready solutions. The role uses AWS, Docker, PostgreSQL, APIs, and related cloud-native technologies.

Independently design, build, test, and deliver production features for a scalable TLD registry platform. Develop C#/.NET and Python microservices, implement AWS-based solutions, optimize CI/CD and infrastructure-as-code pipelines, and ensure reliability through unit and integration testing. Collaborate with engineers, troubleshoot complex technical issues, and take ownership of assigned software delivery tasks.

Develop and scale backend streaming and data infrastructure using Kafka, Flink, AWS, Kubernetes, and related technologies. Break down projects, deliver tested software, collaborate with product and engineering teams, monitor system availability, participate in on-call support, debug code, conduct code reviews, and contribute to team development.

Build, optimize, and maintain software systems using AI while collaborating across disciplines on healthcare technology. Develop distributed, event-driven systems, learn new languages and frameworks, and protect user privacy through data security and HIPAA-compliant practices. The role works with AWS, Kubernetes, and large-scale medical datasets in a fast-paced, mission-driven environment.

Design, deploy, and optimize Philo’s distributed video streaming infrastructure, including ingest, transcoding, packaging, delivery, RESTful services, analytics pipelines, DRM, and ad insertion. Improve platform reliability, performance, latency, security, video quality, and cost efficiency. Collaborate with content partners and internal video, advertising, client, and data teams while supporting streaming quality across new platforms. The role also involves architectural ownership, cloud operations, and mentoring.