Top Entry Level Software Engineer Jobs in Seattle, WA

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.

Design and operate scalable Kotlin or Java backend services and React interfaces supporting high-throughput advertising systems. Build microservices, APIs, event-driven systems, real-time data flows, and data-intensive search capabilities using technologies including Kafka, Redis, Elasticsearch, AWS, Docker, and Kubernetes. Drive architecture, reliability, CI/CD, troubleshooting, and performance optimization while collaborating cross-functionally and mentoring junior engineers.

Build and ship production software across Superhuman’s AI-powered productivity products. Develop features using modern web frameworks, large language models, natural language processing, and intelligent automation. Contribute to scalable distributed systems, testing, deployment, and system design while collaborating with product, design, and engineering teams. The role emphasizes mentorship, rapid growth, independent execution, and delivering reliable user experiences to millions of users.

Build and deploy full-stack healthcare financial products used by millions of patients. Develop AI- and ML-powered features, integrate LLMs, enhance an AI billing assistant, and create patient payment solutions. Collaborate with product, design, and partner engineering teams to deliver production-ready software. Contribute to technical planning, coordinate complex development efforts, mentor peers, and maintain high standards for testing, code quality, efficiency, and technical debt management.

Design, develop, test, and maintain scalable distributed systems, APIs, cloud services, and platform capabilities for secure U.S. government environments. Build monitoring, telemetry, automated tests, and operational tooling; diagnose issues; participate in incident response and readiness reviews; apply security and compliance practices; and collaborate with product, infrastructure, security, and engineering teams.

Build and ship software across Aurelian’s AI call-handling, dispatcher tools, analytics, and integrations. Engineers own product outcomes end to end by speaking with customers, identifying problems, defining roadmaps, prioritizing work, and iterating on solutions. The role involves full-stack development, customer visits to 911 dispatch centers, and close ownership of product decisions and delivery.

Lead the design and delivery of complex distributed systems and high-impact product initiatives for Toast’s Catering & Events platform. Own critical architecture, drive technical strategy, improve scalability and reliability, mentor engineers, establish engineering best practices, and collaborate with Product and Design. The role also involves applying AI tools to improve developer productivity and enable new capabilities.

Develops and maintains Java-based applications, builds front-end interfaces with JavaScript, HTML, and CSS, writes unit tests, documents software procedures, participates in code reviews, troubleshoots issues, and collaborates with cross-functional teams to translate requirements into technical solutions.

Build and maintain backend services, front-end features, cloud infrastructure, and document-processing systems. Use AI programming tools to develop automation, make product decisions, deliver client solutions, and release features quickly. Work directly with clients, own projects end to end, and operate onsite five days per week.

Build software, automation, observability, and telemetry systems for a large-scale global enterprise network. Define and measure reliability targets, replace manual operational processes with code, improve incident detection and recovery, support a resilient global DMZ, and codify disaster recovery across regions.

Own and improve Glydways’ Bazel monorepo infrastructure across C++, Python, and Go. Responsibilities include implementing remote caching and remote build execution, optimizing build and test performance, maintaining toolchains and dependencies, supporting embedded cross-compilation, improving CI/CD workflows with AWS and Buildkite, developing developer automation, monitoring build health, and participating in on-call support.

Design, implement, test, and operate features for Temporal’s open-source distributed workflow server. The role focuses on backend systems, task processing, scheduling, persistence, visibility, reliability, performance, observability, and developer experience. The engineer will collaborate across teams, participate in design and code reviews, improve documentation and operational tooling, and contribute to a complex open-source codebase while developing distributed systems expertise.

Own customer-facing products end to end across the full stack, from React and TypeScript interfaces to backend services and APIs. Shape product and architecture decisions, use telemetry to measure outcomes, and build AI-enabled and agentic experiences with LLMs. Set technical direction, collaborate with product and design teams, mentor engineers, and drive ambiguous prototypes into reliable, scalable production systems.

Own customer-facing product features across the full stack, from ambiguous problems through measurable outcomes. Make architecture and product decisions, use telemetry to guide design, and build AI-enabled and agentic experiences integrating LLMs. Set technical direction, influence product strategy, mentor engineers, and drive prototypes into reliable, performant production systems at scale.

Own customer-facing features end to end across React/TypeScript front ends, backend services, and APIs. Make product-driven architecture decisions, use telemetry to improve outcomes, and build AI-enabled and agentic experiences with LLMs. Set technical direction, influence product strategy, mentor engineers, and drive ambiguous prototypes into reliable, scalable production systems.

The Software Engineer - AI Systems will design and implement systems to coordinate LLMs, build testable software stacks, conduct research, and collaborate with team members to create AI-powered security solutions.

Build and operate full-stack systems for an AI-powered offensive security platform. Responsibilities include developing React frontends, TypeScript APIs, Kotlin and Go backend services, deploying on AWS, designing scalable systems, optimizing databases, supporting production, and owning features from concept through deployment. The role involves close collaboration with AI and security researchers in a fast-paced remote startup.

Own post-launch bugs, production issues, and enhancements for AI agents and related products. Investigate root causes across logs, code, conversation data, APIs, authentication, telephony, and integrations; implement and test fixes; support customers directly; guide frontline Support Engineers; and build internal tools that improve investigation and resolution speed.

Own production bugs, escalations, and enhancements for AI agent products. Investigate issues across logs, code, conversation data, telephony, integrations, authentication, APIs, and LLM prompting; implement, test, and ship fixes. Support customers directly, coordinate testing, guide frontline support engineers, build internal investigation tools, and relay feedback to Product while meeting SLAs.

Build and scale high-throughput streaming infrastructure that ingests, forwards, and computes on billions of behavioral events in real time. Own projects end to end, solve customer scaling challenges, and influence the technical roadmap. The role focuses on distributed systems capable of processing millions of messages per second with very low latency, supporting real-time personalization and AI-driven marketing products.

Develop backend systems for Hightouch’s Customer Studio product, focusing on data warehouse performance, analytics and experimentation, real-time audience syncing, and generative AI workflows. Design scalable, maintainable, and reliable distributed systems while contributing to product specifications and customer-focused solutions. The role requires strong product sense and the ability to architect data-processing features end to end.

Build and maintain core products and collaborate on larger consulting projects using TypeScript, Python, FastAPI, Next.js, GCP, and generative AI frameworks. The role involves hands-on software development within a rapidly growing, remote team serving Saudi Arabia and the GCC.

Graduate software engineers will develop open-source and commercial software across the Linux stack, from firmware, kernels, and drivers to desktop applications, containers, clouds, and Kubernetes. Responsibilities include writing resilient, performant code, contributing to product roadmaps, engaging with users and open-source communities, addressing customer issues, and developing secure software. The role is globally remote with twice-yearly international team sprints and emphasizes mentorship, collaboration, and continuous technical growth.