1w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Test Engineer II
United States or California or New Jersey or New York or Washington or Hawaii or Alaska or Maryland or Connecticut or Rhode Island or Massachusetts or Nevada or Oregon or Arizona or Colorado or Wyoming or Texas or North Dakota or Minnesota or Missouri or Illinois or Wisconsin or Florida or Georgia or Michigan or Ohio or Virginia or Pennsylvania or Delaware or Vermont or New Hampshire or Maine or Utah or Idaho or Montana or New Mexico or South Dakota or Nebraska or Kansas or Oklahoma or Iowa or Arkansas or Louisiana or Mississippi or Alabama or Tennessee or Kentucky or Indiana or South Carolina or North Carolina or West Virginia
$77k-$142k/yr RemoteFull Time
3+ YOEBachelor's in CS or related (or equivalent experience), 3+ years industry experience, automation and API testing experience (Java/Python, Selenium, TestNG, Postman/SoapUI), JIRA/Confluence proficiency.
Java, Python, Selenium, TestNG, Postman, SoapUI, JIRA, Confluence
2w
Save
Mark Applied
Hide
Principal Software Engineer – Test Automation
Bellevue, Washington, United States
$112k-$154k/yr HybridFull Time
7+ YOEBachelor's in CS or equivalent experience, 7+ years in test automation/SDET, proficiency in Python/Java/C/C++, experience with PyTest, Selenium, Robot Framework or Cucumber, API testing (REST/GraphQL), strong test strategy and reporting skills.
Python, Java, C/C++, PyTest, Selenium, Robot Framework, Cucumber, REST, GraphQL, BDD
3w
Save
Mark Applied
Hide
Software Engineer, Test
United States or California or Connecticut or District of Columbia or Maryland or Massachusetts or New Jersey or New York or Virginia or Washington
$95k-$152k/yr RemoteFull Time
1+ YOE1–3 years test automation experience (UI & API); experience with Playwright/Cypress, K6, CI/CD, JavaScript/TypeScript, Git, and Jira; familiarity with testing fundamentals and AI-assisted workflows (Claude/Copilot).
Playwright, Cypress, K6, Git, Claude, Copilot, Jira, TeamCity, Jenkins, CircleCI, GitHub Actions
1mo
Save
Mark Applied
Hide
Staff Software Engineer, API Proxy
Sunnyvale or Kirkland
$207k-$301k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent experience; 8 years C++ programming; 5 years testing/launching software; 5 years building large-scale infrastructure or distributed systems; 3 years software design; strong communication and leadership preferred.
C++, Stubby, gRPC, HTTP, Envoy Proxy, Enterprise Security Framework (ESF) PDP, One Model Context Protocol (OneMCP)
1w
Save
Mark Applied
Hide
Senior Software Engineer, Design in Test (SDET)
Seattle or Tukwila
$135k-$155k/yr HybridFull Time
6+ YOE6+ years SDET/automation experience, strong Python skills, API/UI automation, building simulators/mocks, CI/CD pipeline experience, bachelor's degree or equivalent, and U.S. citizenship/eligibility for export-controlled work.
Python, Go, Python Requests, Postman, Newman, Playwright, Jira, X‑Ray, Slack, CI/CD, RabbitMQ, Kafka
1d
Save
Mark Applied
Hide
Sr. Quality Engineer
United States or Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Kansas or Louisiana or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Mississippi or North Carolina or Nebraska or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or Wyoming
$120k-$130k/yr RemoteFull Time
5+ YOE5+ years QA/quality engineering experience, strong test strategy, API and data validation, SQL, CI/CD familiarity, test automation experience, and practical use of AI-assisted tools.
Cypress, Selenium, TestNG, Cucumber/Gherkin, SQL, GitHub, GitLab, Jira, Confluence, Node.js, TypeScript, JavaScript, Codex, Claude Code, Cursor, GitHub Copilot, ChatGPT
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Seattle or Washington
$156k-$196k/yr HybridFull Time
7+ YOEMaster's degree required; 7+ years test automation and Web/Mobile/SaaS/API testing experience; strong C#/.NET Core and NUnit/XUnit/MSTest skills; Appium/Selendroid for mobile automation; SQL and cloud (Google Cloud, AWS, Azure) experience; FinTech background preferred.
C#, Microsoft .NET Core, NUnit, XUnit, MSTest, Appium, Selendroid, Google Cloud, AWS, Azure, SQL, Mesos, Kubernetes, Nomad, Kafka, SQS, RabbitMQ, HTML, JavaScript, CSS, Microsoft Dynamics 365, Oracle, NetSuite, Intacct, Continuous Integration (CI)
4w
Save
Mark Applied
Hide
Software Engineer - New Revenue
San Francisco or Seattle
$140k-$235k/yr HybridFull Time
5+ YOE5+ years software product development; 3+ years building JavaScript/TypeScript web apps with React; backend services in TypeScript/JavaScript/C#; unit and functional testing; Agile/Scrum, CI/CD, Git; BS in CS; experience with Python/Java and third-party APIs.
JavaScript, TypeScript, React, Redux, Angular, C#, Python, Java, Git, CI/CD, Scrum
3w
Save
Mark Applied
Hide
Lead Infrastructure Engineer- Optical Network
Seattle, Washington, United States
$143k-$185k/yr OnsiteFull Time
5+ YOE5+ years infrastructure engineering experience with deep knowledge of optical transport (ROADM, DWDM, OTN), hands-on troubleshooting, automation (Python), APIs, optical test methods (OTDR, BERT), and experience validating AI-assisted engineering outputs.
ROADM, DWDM, OTN, ILA, coherent optics, Waveservers, Ciena 6500, OTDR, BERT, Python, APIs
1mo
Save
Mark Applied
Hide
Software Engineer
Seattle, Washington, United States
$190k-$286k/yr RemoteFull Time
2+ YOEBS in CS or related field plus 2 years software development; experience with Ruby, Java, Scala, or Go; API design and backend systems; testing.
Ruby, Java, Scala, Go, APIs, Testing
2w
Save
Mark Applied
Hide
Principal Application Software Engineer
Seattle or Nashville
$100k-$210k/yr OnsiteFull Time
3+ YOE3+ years software engineering experience; designing, developing, debugging, and supporting cloud-based application features and APIs. Provides technical guidance, follows secure coding practices, and performs system maintenance and testing.
Oracle Cloud, Oracle Cloud Infrastructure, API
5d
Save
Mark Applied
Hide
SDET - Automation Engineer
Kirkland, Washington, United States
OnsiteContract
10+ YOE10+ years SDET/automation experience, strong Java/JavaScript and JUnit skills, expertise in Selenium/Playwright and API/UI testing, CI/CD and test framework knowledge, quality tool proficiency, and strong communication.
Selenium, Playwright, React, Storybook, Rest API, Java, JavaScript, JUnit, XML, SQL, TestRail, HP-ALM/QC, TFS, SpiraTest, TestDirector, Git, Bitbucket, IntelliJ IDEA, VSCode, Visual Studio, web proxies, simulators, emulators, SQL clients, Pact, Spring Boot, Azure, AWS, GCP
2w
Save
Mark Applied
Hide
Senior Software Engineer, Quantum Applied Research
Redmond or Santa Clara
$184k-$357k/yr OnsiteFull Time
10+ YOE10+ years building production-grade software with distributed systems and data engineering; working knowledge of quantum computing; experience with Python, C++, Go, APIs, CI/CD, and modern data platforms; strong testing and observability practices.
Python, C++, Go, APIs, CI/CD, CUDA, GPU acceleration
4d
Save
Mark Applied
Hide
Software Engineer II
Hillsboro or Liberty Lake
$80k-$110k/yr OnsiteFull Time
4+ YOE4+ years software experience, bachelor's in CS or equivalent preferred; knowledge of Microsoft tech stack, web UI, APIs, testing frameworks, Agile; strong communication and problem-solving skills.
Microsoft Visual Studio, Microsoft .NET, GitHub, HTML5, CSS, JQuery, JavaScript, Bootstrap, AngularJS, Blazor, SOA, API, Web services, Nunit, Xunit, Junit
1mo
Save
Mark Applied
Hide
Staff Software Engineer
United States or Tempe or Santa Clara or San Francisco or Los Angeles or Austin or Washington or New York City or Seattle or Kirkland or Alaska or Mississippi or North Dakota or United States Virgin Islands or California or Hawaii or Illinois or Massachusetts or New Hampshire or Oregon or Virginia
$140k-$273k/yr RemoteFull Time
Strong backend engineering with Node.js/TypeScript, scalable API design, AWS experience, React/Next.js, distributed systems, CI/CD (GitHub Actions), testing, and platform-level architecture and on-call ownership.
Node.js, TypeScript, REST, AWS, ECS, Fargate, DynamoDB, RDS, Aurora, IAM, React, Next.js, GitHub Actions, ServiceNow, CMDB, CDK, Terraform, CloudFormation, Vault, LLM
3w
Save
Mark Applied
Hide
AI Solutions Engineer
Spokane, Washington, United States
$89k-$134k/yr HybridFull Time
4+ YOEBachelor's in software/AI/Data Science or equivalent; 4+ years related experience (3+ years software/AI development); experience with generative AI APIs (OpenAI, Anthropic, Google), REST APIs, CI/CD, Python required; willing to travel ~10%; valid driver's license; pass drug test.
Anthropic Claude, OpenAI GPT4, Google Gemini, REST API, EMR/EHR, PACS, CI/CD, GitHub Actions, Jenkins, Azure DevOps, GitLab CI, Python, JS, R, DevOps, Microsoft Outlook, Microsoft Office Suite, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Workday, Webex, Smartsheet
3w
Save
Mark Applied
Hide
AI Solutions Engineer, Talent Acquisition
Seattle, Washington, United States
$129k-$171k/yr OnsiteFull Time
4+ YOE4+ years building production software (1–2 years on applied AI/LLM systems), strong software engineering (APIs, version control, testing, CI/CD), experience with AI agents/automations, recruiting domain familiarity preferred, U.S. Person required.
Lattice OS, Python, LLMs, APIs, CI/CD, Greenhouse, Gem, LinkedIn Recruiter, Workday
1mo
Save
Mark Applied
Hide
Senior Data Quality Engineer
Needham or California or Connecticut or Florida or Georgia or Illinois or Massachusetts or Maryland or Maine or Michigan or New Hampshire or New Jersey or New York or North Carolina or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Utah or Washington or Virginia
$134k-$156k/yr RemoteFull Time
5+ YOE5+ years in quality or data quality engineering; strong SQL and Python; experience testing ETL/ELT, data transformations, Snowflake/MySQL, dbt, data observability tools; API testing and automation framework experience.
SQL, Snowflake, MySQL, dbt, Monte Carlo, Sifflet, Python, Postman, Swagger, GitHub, Bitbucket, CI/CD, Copilot, Augment, REST
2mo
Save
Mark Applied
Hide
AI/ML Tools and Automation Engineer
Seattle, Washington, United States
OnsiteFull Time
3+ YOEBachelor's or Master's with years of software dev/test automation; API testing; distributed systems; Java/Python; CI/CD; QA leadership.
Java, Python, REST, gRPC, APIs, CI/CD, Automation, ML pipelines
Explore Jobs
Expand Your Job Search
Top Cities in Washington for API Test Engineer
- API Test Engineer jobs in Seattle, WA
- API Test Engineer jobs in Spokane, WA
- API Test Engineer jobs in Tacoma, WA
- API Test Engineer jobs in Vancouver, WA
- API Test Engineer jobs in Bellevue, WA
- API Test Engineer jobs in Kent, WA
- API Test Engineer jobs in Everett, WA
- API Test Engineer jobs in Renton, WA
- API Test Engineer jobs in Federal Way, WA
- API Test Engineer jobs in Spokane Valley, WA
- API Test Engineer jobs in Yakima, WA
- API Test Engineer jobs in Kirkland, WA
- API Test Engineer jobs in Bellingham, WA
- API Test Engineer jobs in Kennewick, WA
- API Test Engineer jobs in Auburn, WA
- API Test Engineer jobs in Pasco, WA
- API Test Engineer jobs in Marysville, WA
- API Test Engineer jobs in Redmond, WA
- API Test Engineer jobs in Lakewood, WA
- API Test Engineer jobs in Shoreline, WA