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Senior Software Development Engineer In Test Jobs in Arlington, WA

Fortive

Senior Software Test Engineer

Everett, WA

$122K - $158K/yr

Fluke is seeking a Senior Software Test Engineer with deep expertise in WiFi and network systems to lead quality engineering for network test and diagnostic tools. You will ensure products deliver ...

Fortive

Senior Software Test Engineer

Everett, WA · On-site

$122K - $158K/yr

Fluke is seeking a Senior Software Test Engineer with deep expertise in Wi-Fi and network systems to lead quality engineering for network test and diagnostic tools. You will ensure products deliver ...

Boeing

Senior Software Security Engineer

Everett, WA · On-site

Senior Software Security Engineer Company: The Boeing Company The Boeing Company is looking for a ... Software Development Lifecycle in accordance with Boeing strategy, industry, and government ...

Boeing

Senior Software Security Engineer

Everett, WA · On-site

Senior Software Security Engineer Company: The Boeing Company The Boeing Company is looking for a ... Software Development Lifecycle in accordance with Boeing strategy, industry, and government ...

Karman Space & Defense

Development Engineer I

Mukilteo, WA · On-site

$85K - $110K/yr

SUMMARY The Development Engineer's role is to develop, test, and deploy aerospace and defense ... Assists in test planning and execution: test design and analysis; writing procedures, test plans ...

Karman Space & Defense

Development Engineer I

Mukilteo, WA · On-site

$85K - $110K/yr

SUMMARY The Development Engineer's role is to develop, test, and deploy aerospace and defense ... Assists in test planning and execution: test design and analysis; writing procedures, test plans ...

Karman Space & Defense

Development Engineer I

Mukilteo, WA · On-site

$85K - $110K/yr

SUMMARY The Development Engineer's role is to develop, test, and deploy aerospace and defense ... Assists in test planning and execution: test design and analysis; writing procedures, test plans ...

Karman Space & Defense

Development Engineer I

Mukilteo, WA · On-site

$85K - $110K/yr

SUMMARY The Development Engineer's role is to develop, test, and deploy aerospace and defense ... Assists in test planning and execution: test design and analysis; writing procedures, test plans ...

Karman Space & Defense

Development Engineer I

Mukilteo, WA · On-site

$85K - $110K/yr

SUMMARY The Development Engineer's role is to develop, test, and deploy aerospace and defense ... Assists in test planning and execution: test design and analysis; writing procedures, test plans ...

Helion

Senior Software Engineer, Data Platform

Everett, WA · On-site

$135K - $178K/yr

Helion is a fusion power company based in Everett, WA, focused on building the world's first fusion power plant. They are seeking a Senior Software Engineer for their Data Platform to design, develop ...

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Senior Software Development Engineer In Test information

See Arlington, WA salary details

$24.9K

$139.1K

$181.1K

How much do senior software development engineer in test jobs pay per year?

As of Jul 28, 2026, the average yearly pay for senior software development engineer in test in Arlington, WA is $139,101.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,400.00 and $159,000.00 per year, depending on experience, location, and employer.

How does a Senior Software Development Engineer In Test typically collaborate with development and product teams to ensure software quality?

As a Senior Software Development Engineer In Test (SDET), you will work closely with both development and product teams throughout the software development lifecycle. This includes participating in design and requirements discussions to identify potential test cases early, contributing to test automation strategies, and providing feedback on testability and quality risks. SDETs often pair with developers to review code, co-create test plans, and triage bugs together, ensuring that testing is fully integrated into the CI/CD pipeline. Effective communication and cross-team collaboration are essential for proactively identifying issues and maintaining high software quality standards.

What engineers make $500,000?

Senior Software Development Engineers In Test (SDETs) with extensive experience, specialized skills in automation, and working at large tech companies or in high-cost-of-living regions can earn $500,000 or more annually. Compensation often includes base salary, bonuses, and stock options, especially for those in leadership roles or with rare expertise in testing automation, cloud platforms, or security tools.

Will QA or SDET get replaced by AI?

Senior Software Development Engineers in Test (SDETs) and QA professionals perform complex testing tasks that require critical thinking, creativity, and understanding of system architecture, which AI currently cannot fully replicate. While AI tools can automate repetitive testing and assist in identifying issues, human oversight and expertise remain essential for designing test strategies, interpreting results, and ensuring software quality in a fast-evolving environment.

What is the SDET engineer's salary?

The salary for a Senior Software Development Engineer in Test (SDET) typically ranges from $90,000 to $140,000 annually, depending on experience, location, and company size. SDETs with strong programming skills and experience with automation tools like Selenium or Jenkins tend to earn higher salaries.

Is SDET still in demand?

Senior Software Development Engineers in Test (SDETs) are in strong demand due to the increasing emphasis on quality assurance and automation in software development. SDETs with skills in programming, test automation tools, and CI/CD pipelines are particularly sought after across various industries, ensuring continuous testing and faster release cycles.

What is the difference between Senior Software Development Engineer In Test vs Software Development Engineer In Test?

AspectSenior Software Development Engineer In TestSoftware Development Engineer In Test
ExperienceTypically 5+ years in testing and developmentEntry to mid-level, 1-3 years experience
ResponsibilitiesDesigns complex test frameworks, mentors juniors, leads testing initiativesDevelops test cases, automates tests, executes testing tasks
Skills & CertificationsAdvanced coding, automation, testing tools, leadership skillsProgramming, automation, testing tools
Work EnvironmentCollaborates with cross-functional teams, often in Agile settingsWorks closely with developers, focuses on automation and manual testing

In summary, a Senior Software Development Engineer In Test has more experience, leadership responsibilities, and strategic testing roles compared to a Software Development Engineer In Test, who primarily focuses on developing and executing tests.

What are the key skills and qualifications needed to thrive as a Senior Software Development Engineer In Test, and why are they important?

To thrive as a Senior Software Development Engineer In Test, you need advanced programming skills, deep knowledge of software testing methodologies, and a bachelor's degree in computer science or a related field. Expertise with automation frameworks (such as Selenium, Cypress, or Appium), CI/CD tools, and scripting languages is typically required, along with relevant certifications like ISTQB. Strong analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and driving quality initiatives. These capabilities ensure rigorous test coverage, faster release cycles, and high-quality software products.

What does a Senior Software Development Engineer in Test (SDET) do?

A Senior Software Development Engineer in Test (SDET) is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify test requirements, create robust test cases, and integrate automated tests into the CI/CD pipeline. In addition to coding and scripting, Senior SDETs mentor junior team members, analyze test results, and help troubleshoot complex issues to continuously improve software quality. Their expertise bridges the gap between development and testing, ensuring both speed and quality in software releases.
What cities near Arlington, WA are hiring for Senior Software Development Engineer In Test jobs? Cities near Arlington, WA with the most Senior Software Development Engineer In Test job openings:
Senior Software Development Engineer In Test jobs near you
Infographic showing various Senior Software Development Engineer In Test job openings in Arlington, WA as of July 2026, with employment types broken down into 1% As Needed, 77% Full Time, 19% Part Time, 2% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $139,101 per year, or $66.9 per hour.

Software Development Engineer in Test SDET

Globenet Consulting Corp

Lynnwood, WA • On-site

$40 - $45/hr

Full-time

Posted 7 days ago

Job description

Benefits:
  • Competitive salary
  • Opportunity for advancement
  • Training & development

Role: Software Development Engineer in Test (SDET)
Location: Plano, TX
Work Arrangement: Onsite, five days per week
Experience Required: 9+ years
Benefits and Engagement Details
  • Long-term opportunity
  • Competitive compensation
  • Opportunity to work on enterprise-scale automation and software quality initiatives
Position Overview
The AES Group Inc. is seeking an experienced Software Development Engineer in Test to design, build, and maintain scalable automation solutions across web, API, backend, and integrated application environments.
The ideal candidate will bring strong programming expertise, hands-on automation framework experience, and the ability to support continuous testing within modern CI/CD pipelines. Candidates must provide an accurate resume reflecting their experience.

Key Responsibilities
  • Design, develop, and maintain scalable automation frameworks for web, API, and backend testing.
  • Create automated test scripts using Java, Python, or C#.
  • Perform functional, regression, integration, API, UI, and end-to-end testing.
  • Build continuous testing solutions and integrate automated tests into CI/CD pipelines.
  • Review business and technical requirements to create test strategies, test cases, and automation plans.
  • Collaborate with developers, product owners, DevOps engineers, and quality assurance teams.
  • Conduct root cause analysis and troubleshoot complex application and automation issues.
  • Perform performance, cross-browser, and cross-platform testing when required.
  • Participate in code reviews and recommend improvements to automation frameworks.
  • Enhance testing standards, reusable components, reporting, and overall quality engineering practices.
Required Qualifications
  • 9+ years of experience in software testing, quality engineering, or test automation.
  • Strong programming experience with Java, Python, or C#.
  • Hands-on experience developing and maintaining automation frameworks.
  • Strong knowledge of web, API, backend, integration, and UI testing.
  • Experience integrating automated tests with CI/CD and DevOps pipelines.
  • Ability to create comprehensive test strategies, test cases, and automation plans.
  • Strong troubleshooting, analytical, and root cause analysis skills.
  • Excellent communication and cross-functional collaboration abilities.
  • Willingness to work onsite in Plano, Texas, five days per week.
Ready to make an impact? Apply now and join us on our journey!