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310 senior backend engineer jobs at 131 companies in Everett, WA

3mo
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Backend Senior Software Engineer
Austin or Bellevue
$111k-$172k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
2+ YOESenior backend engineer with a bachelor's or master’s in STEM and 2+ years (or 5+ yrs directly) of related experience; strong coding and problem-solving skills.
Java, C++, HTML, CSS, JavaScript, Python, C#, PHP, Angular, React, Kubernetes, Docker, APIs, SQL
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1mo
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Backend Engineer
Seattle, Washington, United States
$160k-$175k/yr HybridFull Time
FlowPlay
FlowPlay: Develops and publishes social casino games and virtual worlds.
5+ YOE5+ years Java backend experience, proficiency with MySQL, EMR not referenced, familiarity with cloud (AWS or GCP), RESTful API design, version control (SVN/Git); Bachelor's in CS or related preferred.
Java, Spring Boot, MySQL, AWS, GCP, RESTful API, Apache SVN, Git, Docker, Kubernetes, PostgreSQL, Oracle, NoSQL
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3w
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Senior Backend Engineer
Seattle, Washington, United States
$160k-$220k/yr OnsiteFull Time
Aurelian
Aurelian: AI-powered voice automation for 9-1-1 non-emergency calls.
4+ YOE4+ years software engineering experience, strong engineering fundamentals, autonomy, and ability to build reliable, low-latency backend systems for voice and AI pipelines.
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2mo
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Senior Backend Engineer (Canada)
Seattle, Washington, United States
RemoteFull Time
Loot Labs
Loot Labs: Platform for unboxing and trading digital and physical collectibles
5+ YOE5+ years backend experience; strong TypeScript; AWS (DynamoDB, Lambda, S3, AppSync, Cognito, SQS); GraphQL; CI/CD; security; observability
DynamoDB, Lambda, S3, AppSync, Cognito, SQS, SST, TypeScript, GraphQL, CI/CD
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1mo
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Senior Backend Engineer
Madrid or Paris or Seattle or London or Berlin or San Francisco or New York City or Sydney or Mexico City
HybridFull Time
Aircall
Aircall: Cloud-based business phone system and customer communication platform.
6+ YOE6+ years backend development with a typed language (TypeScript preferred), production AWS experience, infrastructure-as-code (CloudFormation or Terraform), security-first mindset, serverless experience, GraphQL a plus, on-call rotation and mentoring experience.
TypeScript, AWS, CloudFormation, Terraform, GraphQL
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2mo
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Senior Backend Engineer- Platform
Seattle, Washington, United States
$160k-$190k/yr OnsiteFull Time
Yoodli
Yoodli: AI-powered platform for communication coaching and roleplay simulations.
5+ YOE5+ years backend development; cloud infra; TypeScript or Python; on-site 3 days in Seattle; bachelor's in CS or equivalent.
TypeScript, Python, Google Cloud Platform, Amazon Web Services, Microsoft Azure, Kubernetes, NoSQL, Infrastructure as Code
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1w
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Senior Backend Engineer, Managed Kubernetes & Slurm
New York City or San Francisco or Seattle
$180k-$250k/yr HybridFull Time
Lightning AI
Lightning AI: Unified platform to build, train, and deploy AI models.
Significant experience building and operating production backend systems with Go or Python, deep Kubernetes or Slurm knowledge, distributed systems, networking, observability, CI/CD, and production incident response.
Go, Python, Kubernetes, Slurm, Terraform, Crossplane, Helm, Argo CD, Flux, Kustomize, gRPC
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2mo
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Senior Software Engineer, Backend - RQL
Seattle or San Francisco
$168k-$280k/yr OnsiteFull Time
Rippling
Rippling: Unified platform managing workforce HR, IT, and finance operations
6+ YOE6+ years backend engineering experience; experience with distributed systems, distributed processing engines, big data technologies, mentoring developers, and building data platforms.
Python, MongoDB, CDC, Kafka, Aurora, Trino, Presto, Pinot, Iceberg, Flink, Rippling Query Language (RQL), Microsoft 365
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1mo
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Senior Backend Engineer – AI Platform
Boston or San Francisco or Seattle or Dallas or Salt Lake City or Portland or United States
$122k-$146k/yr RemoteFull Time
WEX
WEXNYSE: WEX: Provides global payment processing and business information management services.
5+ YOEBachelor's in CS/Software Engineering, 5–8 years software engineering experience; expertise in backend Java/C# (SpringBoot), REST/gRPC, SQL; experience building scalable distributed systems and AI/LLM-driven services.
Java, C#, SpringBoot, REST, gRPC, ODATA, SQL, OpenAI APIs, LangChain, Python, Kafka, Docker, Kubernetes, Model Context Protocol (MCP), Pinecone, Weaviate, OpenSearch, Milvus
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15h
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Senior Backend Software Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$140k-$240k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
Backend and cloud engineering role requiring scalable distributed systems experience, production ownership, and ability to obtain and maintain U.S. security clearance; U.S. Person status required.
Microsoft Azure, Python, Terraform, Kubernetes, TypeScript, React
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1mo
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Senior Backend Engineer
Seattle, Washington, United States
$167k-$230k/yr OnsiteFull Time
Otter
Otter: Software for restaurants to manage and grow online orders.
Proficiency in Java; familiarity with PostgreSQL, MongoDB, Redis; experience with AWS, Google Cloud, or Azure; understanding of RESTful APIs, microservices, and distributed systems; strong debugging and problem-solving skills.
Java, PostgreSQL, MongoDB, Redis, AWS, Google Cloud, Azure, RESTful APIs, microservices, distributed systems
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1mo
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Senior Backend Engineer
Seattle, Washington, United States
$167k-$230k/yr OnsiteFull Time
Atoms
Atoms: Building robotics and software to automate physical world industries.
Proficiency in Java; experience with PostgreSQL, MongoDB, Redis; experience with AWS/GCP/Azure; knowledge of RESTful APIs, microservices, and distributed systems; strong debugging and problem-solving skills.
Java, PostgreSQL, MongoDB, Redis, AWS, Google Cloud, Azure, RESTful APIs
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3mo
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Senior Software Engineer, Backend
Seattle, Washington, United States
$191k-$263k/yr HybridFull Time
Plaid
Plaid: Provides financial data connectivity and payment infrastructure via APIs.
5+ YOE5+ years of software engineering; MySQL; microservices; leadership and mentoring; cross-functional collaboration.
MySQL, Microservices, Backend APIs, Programming
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1mo
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Senior Software Engineer, Backend
Bellevue, Washington, United States
$160k-$210k/yr HybridFull Time
Cognitiv
Cognitiv: Deep learning platform for predictive advertising and media buying.
Senior backend engineer experienced with .NET Core (or similar), AWS, building partner integrations, scaling distributed systems, strong ownership, communication, testing focus, and operational excellence.
.NET Core, Java, Kotlin, AWS, RDS, ClickHouse, Datadog, CI/CD, ContextGPT
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1mo
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Backend Engineer, Flag Delivery
Oakland or San Francisco or New York City or Boston or Seattle or Irvine or Los Angeles or Monterey or Santa Barbara or Santa Rosa or Austin or Portland or Philadelphia or Chicago or United States
$146k-$235k/yr OnsiteFull Time
LaunchDarkly
LaunchDarkly: Provides a feature management platform for software development teams.
5+ YOE5+ years backend engineering experience building/operating production distributed systems; strong programming in Go/Java/Rust; production debugging, observability, on-call experience; clear AI usage in engineering work.
Go, Java, Rust
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2mo
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Staff, Back-end engineer [FEX]
Seattle, Washington, United States
OnsiteFull Time
Coupang
CoupangNYSE: CPNG: Provides an end-to-end e-commerce and logistics network.
10+ YOE10+ years backend engineering; Java/Spring; AWS; distributed systems; high throughput/low latency.
Java, Spring Framework, AWS, Cassandra, MySQL, Temporal, Netflix Conductor
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1mo
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Senior Backend Engineer | On-Site | Seattle
Seattle, Washington, United States
$120k-$200k/yr OnsiteFull Time
Grid
Grid: Mobile app for cash advances and tax refund optimization.
Experience building and operating production backend systems (preferably in Go on GCP), strong data-driven development skills, familiarity with distributed/event-driven systems, and SQL proficiency.
GCP, Go, protobufs, BigQuery, MySQL, Spanner, SQL, Pub/Sub
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1mo
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Backend Engineer
San Francisco or New York City or Austin or Seattle
$175k-$300k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Experience building production services, observability, API and control-plane design, API-first infrastructure, incident response/pager duty, and familiarity with AI tooling and distributed systems.
LLM APIs, MCP servers, Claude Code, Cursor, Prometheus, Thanos, VictoriaMetrics, Temporal, Cadence, BMC/Redfish, Go, Python, Postgres, Kubernetes
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2mo
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Senior Software Engineer - Backend Services
Seattle, Washington, United States
$155k-$190k/yr HybridFull Time
Truveta
Truveta: Provides a clinical data platform for medical research insights.
5+ YOE5+ years backend engineering experience, strong Python async skills, production ownership, cloud-native platform experience, LLM/API integrations, and secure service practices.
Python, uv, ruff, ty, OpenAI, Microsoft Azure OpenAI, LangGraph, LangChain, MCP, A2A, Docker, devcontainers, Kubernetes, CI/CD, AKS, Terraform, Terragrunt, Snyk, JFrog, Docker/PyPI proxying, Microsoft Azure Pipelines
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3w
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Senior Software Engineer - Backend (Integrations)
Seattle, Washington, United States
$180k-$210k/yr HybridFull Time
Read AI
Read AI: AI productivity platform for meeting summaries and workplace insights.
7+ YOE7+ years backend/distributed systems experience; strong event-driven architecture and API design skills; familiarity with OAuth2 and webhooks; experience with Kafka/SQS and backend languages such as Python or Java.
Kafka, SQS, OAuth2, webhooks, Python, Java
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