Top Entry Level Software Engineer Jobs in Seattle, WA

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.

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.

Build and maintain reliable software products and platforms, including APIs, services, user-facing features, data workflows, and operational tools. Responsibilities include implementation, testing, releases, production support, defect resolution, monitoring, documentation, code reviews, and collaboration with Product and Design. The role also involves using AI-assisted development tools, learning business and technical domains, and contributing to continuous improvement.

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.

Leads hands-on development of enterprise solutions using Dynamics 365 Sales, Dataverse, Power Apps, and Power Automate. Designs CI/CD pipelines, establishes engineering standards, manages version control and ALM, and ensures solution scalability and maintainability. Mentors engineers, conducts code reviews, collaborates with architecture and product teams, supports Agile delivery, and serves as a technical stakeholder contact. Participates in overnight and weekend on-call support for Broad Arrow Auctions.

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.

Build and own production software for facility energy control, including protocol and gateway services, messaging and state layers, data contracts, constraint execution, and observability. The role requires high-throughput messaging, time-series data modeling, resilient service design, device-to-database data integrity, and real-time operational systems experience. Bonus technologies include Go, NATS, Redis, industrial protocols, Kubernetes, ArgoCD, SCADA, EMS, and Grafana.

Design and scale a feature flagging and A/B testing platform, including high-throughput event ingestion, warehouse-native analytics, real-time feature flag delivery, multi-database SQL support, and distributed systems infrastructure. The role involves full-stack development, architecture, performance optimization, reliability engineering, and technical product influence within a remote startup team.

Develop and maintain Tailscale’s open-source client and backend networking software. Design, test, document, and optimize networking components, distributed systems, and overlay routing features. Own services through observability, incident response, and customer escalations while collaborating with product managers and designers. Apply security-first practices and improve system efficiency, scalability, and stability in a fully remote, asynchronous startup environment.

Design and own secure, scalable wallet infrastructure for custody, key management, transaction signing, authorization, recovery, and multichain systems. Architect support for MPC, HSMs, secure enclaves, TEEs, smart contract wallets, account abstraction, and emerging cryptographic approaches. Define security boundaries, policy engines, secrets management, authentication, and programmable authorization while making foundational build-versus-buy decisions and guiding systems from first principles through production.

Build and maintain developer tools, SDKs, CLI, MCP interfaces, integrations, and supporting backend services. Collaborate on API contracts, compatibility, testing, releases, documentation, and shared tooling. Support developers through GitHub issues and pull requests while designing reliable systems with authentication, retries, idempotency, rate limits, monitoring, and error recovery.

Build and operate Origin’s AI observability platform across data-collection agents, backend services, infrastructure, inference pipelines, APIs, and React interfaces. Design distributed systems using AWS, EKS, ClickHouse, and Kafka for high-throughput, multi-tenant production workloads. Develop internal coding agents and define AI-native engineering practices while making decisions around storage, APIs, performance, and reliability.

Develop and improve Temporal Proxy, an extensible open-source solution for Temporal Cloud and customers. Implement request handling, configuration, authentication and authorization integrations, encryption hooks, observability, testing, documentation, and production debugging. Collaborate with security, infrastructure, server, and engineering teams to deliver reliable proxy capabilities and improve developer experience.

Develop simulation software and infrastructure for autonomous satellite servicing missions. Responsibilities include building cloud infrastructure, automating simulation analysis, testing autonomous software in simulated space environments, and supporting integrations with satellite compute hardware.

Build and operate highly reliable card-issuing systems at the network boundary. Responsibilities include interpreting specifications, protocols, certifications, mandates, and production behavior; developing production software and conformance tooling; analyzing network messages; driving certification cycles; influencing card networks; mentoring engineers; applying AI-assisted engineering practices; and participating in on-call support for critical financial systems.

As a Software Engineer on the Apollo platform, build and maintain systems for software deployment at scale, collaborating with teams to solve complex issues.

Join the Inference team to implement features and improvements for model serving on a GPU platform, focusing on performance and reliability.

Build and maintain versioned data ingestion and conflation pipelines that transform complex retail and spatial data into accurate, reliable insights. Responsibilities include entity resolution, golden-record creation, rules-based normalization, RegEx logic, LLM integration, schema evolution, and cost-effective scaling. The role emphasizes engineering rigor, high-fidelity outputs, and production-ready data for consumer dashboards.

Build and maintain a React/TypeScript operations portal and Supabase/PostgreSQL backend for autonomous aircraft medical logistics. Improve aircraft allocation, mission generation, telemetry ingestion, live dashboards, reliability, testing, logging, and observability. Integrate Python services with ArduPilot aircraft and simulations while collaborating with autonomy and simulation engineers to mature real-flight and digital-twin systems.

Develop and deploy reliable software for a distributed SQL database in a fast-paced production environment. Responsibilities include designing, coding, testing, and owning projects throughout the product lifecycle. Work may involve LLMs, vector indexes, database fault tolerance, SQL query performance, SIMD, LLVM code generation, search, and query optimization. Collaborate with engineering, product, marketing, and sales teams while developing professionally alongside experienced engineers.

Develop and deploy reliable software for SingleStore’s distributed SQL database. Responsibilities include designing, coding, testing, and improving systems involving query optimization, fault tolerance, concurrency, multithreading, server architectures, LLMs, vector indexes, SIMD, and LLVM code generation. The role involves end-to-end project ownership, collaboration across teams, and participation throughout the product lifecycle.

Lead the architecture, design, implementation, and operation of Temporal’s distributed replication stack. Drive replication protocols for high availability, cross-cluster and cross-region failover, and workload migration. Define consistency, ordering, recovery, and performance guarantees; improve scalability and reliability; debug production issues; influence technical direction across teams; mentor engineers; and contribute to Temporal OSS and cloud infrastructure.