403 sr api developer jobs at 161 companies in Federal Way, WA
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Senior API Developer
Tacoma, Washington, United States
$100k-$160k/yr OnsiteFull Time
7+ YOE7+ years API development experience, strong API design and security knowledge, proficiency with Java/Python/JavaScript and frameworks, CI/CD and testing experience, DoD clearance preferred.
Java, Python, JavaScript, Spring, Flask, Node.js, OAuth 2.0, JWT
2w
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Sr Software Engineer - Backend API Platform
Seattle, Washington, United States
$125k-$229k/yr OnsiteFull Time
6+ YOE6+ years backend/platform engineering experience building scalable user-facing APIs; expertise in identity and access models, API design, operational excellence, and mentoring engineers.
Node.js, TypeScript, Kubernetes, AWS, OIDC, Keycloak, SPIFFE, mTLS
1mo
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Staff Software Engineer, API Platform
San Francisco or Seattle
OnsiteFull Time
12+ YOE5+ Mgmt12+ years technical experience,5+ years strategic technical leadership,experience with API design and infrastructure,proficient in Java/Ruby/Python/Go,strong communication and problem-solving skills.
Java, Ruby, Python, Go, Kafka, Kubernetes
2mo
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Sr. Software Dev Engineer, Antenna System Validation, Amazon Leo
Redmond, Washington, United States
$168k-$227k/yr OnsiteFull Time
5+ YOE5+ years software development, leadership experience, mentorship; strong backend language proficiency and system design.
Python, Rust, C++, Java, Go, Cloud (AWS), CI/CD, Data processing, API design, DevOps
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Senior Software Engineer, API/SDK
Seattle, Washington, United States
$191k-$253k/yr OnsiteFull Time
8+ YOE8+ years software engineering with customer-facing responsibilities; strong in API design, distributed systems, cloud and container platforms, CI/CD, multiple languages (Python, Java, Go, C++); must be a U.S. Person.
Python, Java, Go, C++, CI/CD, Docker, Kubernetes, AWS, Azure, GCP, REST, gRPC, GraphQL, WebSockets, message queues
2mo
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Software Engineer, API SDK
San Francisco or Seattle or New York City
$293k-$385k/yr HybridFull Time
7+ YOE7+ years of professional engineering experience; experience building SDKs; design and implement SDKs for multiple languages; collaborate across teams.
Python, Node.js, Golang, Java, Ruby, SDK generation
3d
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Sr Flutter App Developer
Scottsdale or Bellevue or London
$165k-$200k/yr HybridFull Time
7+ YOERequires 7+ years in mobile development, 2+ years with Flutter, Dart expertise, API integration, Firebase, SDKs, mobile performance profiling, debugging, accessibility, and scalable architecture.
Flutter, Dart, Provider, Riverpod, Bloc, Firebase, CI/CD
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Senior Software Engineer - API Platform & Client Tooling
Bellevue or Livingston or New York City or San Francisco or Sunnyvale
$153k-$204k/yr OnsiteFull Time
Production Go experience, API design and versioning, client tooling/SDK/CLI or provider work, code-generation or compiler/tooling experience preferred, cross-team collaboration and mentorship.
Go, gRPC, protocol buffers, Buf, ConnectRPC, Terraform Plugin Framework, Cobra, CWIC
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Sr Software Engineer II
Seattle or New York City
$176k-$196k/yr OnsiteFull Time
5+ YOEBS in CS or equivalent, 5+ years software development, proficiency in Go and Python, experience with telemetry, observability, data pipelines, cloud (AWS/GCP/Azure), and embedding AI/LLM APIs into workflows.
Go, Python, LLM APIs, AWS, GCP, Azure, CI/CD
2d
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Sr Product Software Engineer
Santa Monica or Seattle or New York City or Glendale
$142k-$190k/yr HybridFull Time
5+ YOERequires 5+ years building internet-scale applications, cloud services experience, software testing, CI/CD, APIs or SDKs, agile development, and a bachelor's degree or equivalent experience.
Java, Scala, Jenkins, GitHub Actions, Spinnaker, Git, SVN, Jira, Basecamp, AWS, ECS, Docker, S3, EC2, Lambda, CloudWatch, Spark, Databricks, EMR, Terraform, Apache Airflow, Meson
2d
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Sr Product Software Engineer
Santa Monica or Seattle or New York City or Glendale
$142k-$190k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience and 5+ years building internet-scale applications. Requires Java or Scala, cloud services, testing, CI/CD, APIs, version control, and agile development experience.
Java, Scala, Jenkins, GitHub Actions, Spinnaker, Git, SVN, Jira, Basecamp, AWS, Amazon ECS, Docker, Amazon S3, Amazon EC2, AWS Lambda, Amazon CloudWatch, Spark, Databricks, Amazon EMR, Terraform, Apache Airflow, Meson
5d
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Sr. Software Engineer
Irvine or Los Angeles or Seattle
$150k-$180k/yr OnsiteFull Time
Full-stack engineer modernizing production systems and building AI capabilities with Java, Go, JavaScript, BigQuery, GCP, REST APIs, databases, automated testing, and end-to-end project ownership.
Java, Go, JavaScript, BigQuery, Cloud Storage, MySQL, REST APIs, FTP, YAML, GCP, Docker, Kubernetes, GKE, GitHub Actions, Python, Tomcat, JSP, CodeMirror, Chart.js, MCP, LLMs
4d
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Sr Software Engineer - Access Review- Veza
Kirkland, Washington, United States
$143k-$243k/yr RemoteFull Time
7+ YOERequires 7+ years of backend software development experience, a computer science or engineering degree, Golang and Java proficiency, RESTful APIs, microservices, IAM, cloud, databases, and distributed systems experience.
Golang, Java, RESTful APIs, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, SQL, NoSQL
1mo
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Sr Software Engineer, Platform
Seattle, Washington, United States
OnsiteFull Time
5+ YOE5+ years building and operating production distributed systems; BS in CS preferred; strong Go or Python experience; REST/gRPC APIs; cloud-native tooling and scalability focus.
Go, Python, REST, gRPC, CI/CD, Kafka, MQTT, Kubernetes, Docker, MongoDB, MP4, HLS, ffmpeg
4d
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Sr Software Engineer - Access Review- Veza
Kirkland, Washington, United States
$143k-$243k/yr RemoteFull Time
7+ YOE7+ years of backend software development experience in IAM or security; Bachelor's or Master's in Computer Science, Engineering, or related field; Golang and Java proficiency; REST APIs, microservices, cloud, and distributed systems experience.
Golang, Java, RESTful APIs, AWS, Microsoft Azure, Google Cloud Platform, Docker, Kubernetes, SQL, NoSQL
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Sr. FullStack Software Engineer
Bellevue, Washington, United States
$120-$200/yr HybridFull Time
5+ YOE5+ years full‑stack experience with Python/Django and React; experience building scalable SaaS, comfort with cloud (AWS/GCP/Azure), CI/CD, RESTful APIs, WebSockets, and AI/ML integrations.
Python, Django, React, Cursor, Windsurf, AWS, GCP, Azure, CI/CD, RESTful APIs, WebSockets
3w
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Sr. Software Developer in Test
Kirkland, Washington, United States
$137k-$205k/yr OnsiteFull Time
5+ YOE5+ years in test automation/SDET roles; strong Python, Selenium, API testing (requests, pytest, Postman); Jenkins, Docker, Linux, Git; experience with hardware-software products and CI/CD integration.
Python, Selenium, requests, pytest, Postman, Jenkins, Docker, Linux, Git
1w
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Sr. Application Engineer (DevOps, AI)
Seattle, Washington, United States
$99k-$140k/yr HybridFull Time
5+ YOE5+ years with .NET/C#/SQL and Python, strong DevOps experience with Azure Pipelines or GitHub Actions, API and IAM (MFA/RBAC) skills, experience with Azure AI and intelligent agents, Bachelor's preferred.
.NET, C#, SQL, Python, Azure DevOps, Azure Pipelines, GitHub Actions, Git, Azure AI Services, Microsoft Copilot, ANSI SQL, T-SQL, CLI
1mo
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Sr. Software Development Engineer - Video Rendering
Seattle or San Francisco or San Jose
$174k-$331k/yr OnsiteFull Time
10+ YOE10+ years software engineering with deep GPU/graphics or rendering systems experience, strong modern C++, and knowledge of GPU APIs, shading languages, and performance debugging.
C++, DirectX 12, Metal, Vulkan, CUDA, OpenCL, HLSL, Slang, SPIR-V, DXIL, DXC, Nsight, PIX, TensorRT, ONNX Runtime
1mo
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Sr. Applied ML Engineer, Apple Services Localization Engineering
Seattle, Washington, United States
OnsiteFull Time
Expertise in machine learning and machine translation, building secure end-to-end solutions, developing custom server-side software and APIs, and applying privacy-preserving engineering practices.
Machine Learning, Machine Translation
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