Software Engineer Jobs in Bellevue, WA

Lead design and implementation of scalable ML tooling and full-stack features for Flyte. Architect systems, write high-quality front-end and back-end code, craft APIs, integrate ML frameworks and data processing, participate in design/code reviews, and drive cross-team technical decisions to productionize ML workflows.

Architect and develop scalable backend microservices for payments, disbursements, or governance, risk, and compliance systems. Build secure financial workflows, integrate Google Cloud services, manage infrastructure handling millions of daily requests, and collaborate across product, operations, and compliance teams. The role also includes mentoring engineers, improving platform capabilities through analytics and feedback, and implementing secure, high-performance distributed systems.

Design, implement, and own full-lifecycle features for The Trade Desk's real-time bidding platform. Deliver high-quality, low-latency changes with automated tests, metrics, and monitoring. Drive cross-component architecture and performance improvements, validate releases, participate in code/design reviews, and contribute to the technical hiring process.

Design and evolve distributed search and analytics systems for the Splunk platform. Lead complex engineering efforts from design through delivery, improve performance and reliability, mentor engineers, collaborate cross-functionally, and work with customers to resolve production issues.

Architect, build, and scale backend microservices for Payments, Disbursements, or GRC squads; design high-performance, secure payment and disbursement workflows; integrate Google Cloud services and distributed systems; ensure compliance (KYC/AML); collaborate cross-functionally; mentor junior developers; and iterate on platform reliability and performance to support millions of daily requests.

Design, develop, test, deploy, and maintain scalable software and services. Lead complex feature implementations, participate in architecture and code reviews, troubleshoot production issues, and improve system performance and processes. Collaborate cross-functionally, mentor engineers, and promote engineering best practices to deliver reliable customer-focused experiences.

Designs and maintains AI-first testing frameworks and automation suites for complex workflows and agentic capabilities. Translates quality strategies into automation plans, validates LLM integrations, prompts, and deterministic behaviors, and performs white-box testing. Evaluates AI response relevance, safety, and contextual accuracy through human-in-the-loop processes. Collaborates with developers, product managers, AI/ML engineers, and data scientists to embed quality throughout agile delivery and improve code and test reliability.

Design, implement, and deploy Salesforce-based software solutions for T-Mobile for Business. Integrate Salesforce with third-party systems using REST/SOAP, build LWC/Aura UI components, optimize performance, and collaborate with cross-functional teams. Mentor peers, present technical proposals, and independently solve non-routine problems.

Design and develop Unity Editor features and workflows for streaming Linux and browser-based platform configurations. Profile and optimize WebGPU and WebAssembly performance, including load times, memory management, and runtime efficiency. Investigate and resolve platform bugs, contribute to automated testing and code reviews, and collaborate with global R&D teams to deliver stable, scalable, cross-platform support.

Architect and develop scalable backend microservices for payments, disbursements, or governance, risk, and compliance. Design secure, high-performance infrastructure handling millions of daily requests, integrate Google Cloud services, implement financial workflows, and collaborate with product, operations, and compliance teams. Mentor junior engineers, promote engineering best practices, and continuously improve platform capabilities using analytics and user feedback.

Design and implement data-intensive platform components, mentor engineers, and optimize streaming infrastructure to enable scalable data services at Okta.

Lead and own observability tooling for the Auth0 platform: design, build, and maintain metrics, logs, and traces infrastructure. Provision and monitor cloud-native services, automate operational tasks with Terraform, Datadog, and OpenTelemetry, troubleshoot performance, participate in incident response, and drive cross-team initiatives while mentoring junior engineers.

You will design and implement IAM systems, own authentication and authorization, and ensure secure-by-default principles across Hadrian's API platform.

Design and implement advanced database and storage systems, focusing on performance optimization and distributed query execution as part of the Database Engine team at Databricks.

Design and implement the carrier-grade VoIP/SIP backbone, build Golang-based SIP services and control planes, configure HA SIP proxies and media servers, implement routing, security (TLS/SRTP), billing and provisioning integrations, define monitoring and capacity planning, and collaborate with product and ops to deliver resilient telephony features.

Lead architecture and implementation of Auger’s data lake and AI platform, building scalable data ingestion, semantic intelligence (knowledge graphs, embeddings, RAG), real-time streaming, and MLOps. Drive system reliability, operational rigor, API-first designs, and mentor engineers while setting platform-wide architectural direction.

The Software Engineer will develop full-stack applications using Go, React, and Java, focusing on creating engaging user experiences and leveraging AI to enhance productivity.

The Principal Software Engineer will design, develop, and support distributed systems, mentor junior engineers, and solve complex scalability issues.

As a Senior Software Engineer, you will create and maintain service-oriented solutions, automate processes, and improve operational efficiency while participating in a 24/7 on-call rotation.

As a Staff Software Engineer focusing on backend, you'll design, implement, and operate micro-services, focusing on large-scale data and AI infrastructure.

As a Staff Software Engineer on the Money team, you'll manage billing systems, develop new pricing strategies, enhance data processing efficiency, and collaborate cross-functionally.

Lead design and development of Windows desktop applications, ensuring performance, accessibility, and cross-version compatibility while mentoring engineers and collaborating across teams.

The Senior Software Engineer will lead the design and development of Windows desktop applications, enforce best practices, drive accessibility efforts, and collaborate with cross-functional teams throughout the software lifecycle.

As a Senior Software Engineer, you will build and maintain foundational services, optimize functionality, and collaborate on cross-platform SDK projects.

Build developer tooling, demo applications, and integrations enabling secure AI agent experiences. Contribute to open source, docs, and architect scalable, resilient systems that integrate LLM APIs, agent runtimes, and identity/auth standards (OAuth2/OIDC/JWT). Mentor engineers and collaborate with product, design, and security teams.