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Senior Software Test Engineer Jobs in Seattle, WA

SpaceX

Sr. Software Engineer, Starlink Network

Redmond, WA · On-site

$137K - $180K/yr

... a Senior Software Engineer for the Starlink program. In this role, you will develop reliable ... test execution across multiple environments, including virtualized hardware environments, real ...

Protingent

Senior Software Engineer

Bellevue, WA · On-site

$56 - $95/hr

Senior Software Engineer Position Description: Protingent Staffing has an exciting contract Senior ... Design, implement, document, and test software based on formally defined requirements and bug ...

Doist

Senior Test Engineer, On-Radar Firmware

Kirkland, WA · On-site

$137.20 - $205.38/hr

The company combines the patented technology of metamaterials with powerful software to create a ... Echodyne is seeking a SENIOR TEST ENGINEER to focus on On-Radar Firmware. RESPONSIBILITIES * Design ...

Echodyne Corp

Sr. Software Developer in Test

Kirkland, WA · On-site

$56.75 - $73.25/hr

Echodyne is seeking a Sr. Software Developer in Test to help build our next-generation radar ... SDET roles * Strong hands-on experience with Python, Selenium, and API testing (e.g.: requests ...

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All JobsSoftware Test Engineer JobsSenior Software Test Engineer JobsSenior Software Test Engineer Jobs in Seattle, WA

Senior Software Test Engineer information

See Seattle, WA salary details

$25.6K

$143K

$186.2K

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

As of Aug 12, 2026, the average yearly pay for senior software test engineer in Seattle, WA is $142,972.00, according to ZipRecruiter salary data. Most workers in this role earn between $125,800.00 and $163,400.00 per year, depending on experience, location, and employer.

Is senior software test engineer a good career?

A senior software test engineer is a valuable role in the software development process, focusing on quality assurance, test planning, and automation tools. It offers opportunities for career growth, specialization, and competitive salaries, especially with experience in scripting and testing frameworks. The role is in demand across various industries that rely on software reliability and quality standards.

What are the key skills and qualifications needed to thrive as a senior software test engineer?

A Senior Software Test Engineer needs deep expertise in software testing methodologies, automation frameworks, and programming languages like Java, Python, or C#, typically backed by a degree in computer science or related field. Familiarity with tools such as Selenium, JUnit, TestNG, and bug-tracking systems like Jira, as well as certifications like ISTQB, is highly valuable. Strong problem-solving abilities, attention to detail, and effective communication skills enable collaboration and leadership within QA and development teams. These competencies are crucial to ensuring software quality, minimizing defects, and delivering reliable products in complex technical environments.

What are the typical collaboration points between a senior software test engineer and other teams during a project lifecycle?

Senior Software Test Engineers frequently collaborate with developers, product managers, and DevOps engineers throughout the project lifecycle. Early in the process, they work closely with developers to understand requirements and clarify acceptance criteria. During development, they coordinate on bug tracking and test coverage, and participate in sprint planning or daily stand-ups. They also interact with DevOps to integrate automated tests within CI/CD pipelines, ensuring smooth deployment and feedback cycles. This cross-functional collaboration is essential for delivering high-quality software efficiently.

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

AspectSenior Software Test EngineerSoftware Test Engineer
CredentialsTypically requires 5+ years of experience, certifications like ISTQBEntry to mid-level, often with 1-3 years of experience, similar certifications
Work EnvironmentLeads testing projects, mentors junior staff, designs test strategiesPerforms test execution, reports bugs, follows test plans
Industry UsageUsed across software development companies, especially in larger teamsCommon in various tech companies, startups, and software firms

The main difference between a Senior Software Test Engineer and a Software Test Engineer lies in experience, responsibilities, and leadership. Senior roles involve strategic planning, mentorship, and complex testing, while Software Test Engineers focus on executing tests and reporting issues. Both roles are essential in ensuring software quality, with the senior position requiring more expertise and leadership skills.

What does a senior software test engineer do?

A Senior Software Test Engineer is responsible for designing, developing, and executing comprehensive test plans to ensure the quality and functionality of software products. They lead testing efforts, identify defects, and work closely with development teams to resolve issues. In addition, they may mentor junior testers, implement automation frameworks, and help define testing standards and best practices within the organization. Their goal is to ensure software reliability, performance, and user satisfaction before release.
What are the most commonly searched types of Software Test Engineer jobs in Seattle, WA? The most popular types of Software Test Engineer jobs in Seattle, WA are:
What cities near Seattle, WA are hiring for Senior Software Test Engineer jobs? Cities near Seattle, WA with the most Senior Software Test Engineer job openings:
Infographic showing various Senior Software Test Engineer job openings in Seattle, WA as of August 2026, with employment types broken down into 1% Internship, 86% Full Time, 9% Part Time, and 4% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $142,972 per year, or $68.7 per hour.

[Mid Level] Software Test Engineer - 5G 4G Mobile Carrier Certification Testing (12601-2)

JND Inc.

Seattle, WA • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 2 days ago

Job description

[Position Overview]
  • Job Title: Software Test Engineer [Chinese Bilingual]
  • Education: Bachelor's Degree in Electrical Engineering, Computer Science, or related field
  • 2+ years of hands-on experience in software testing for mobile communication terminal products
  • Job Type: Full-Time, Hourly

[Location]
  • Seattle, WA

[Benefits & Perks]
  • Medical Insurance (Health, Dental & Vision)
  • 401(k)
  • Paid Time Off
  • H1B/Green Card Sponsorship for qualified employee
  • Hands-on experience at global industry leader Samsung
  • Opportunities for career advancement

[Summary]
  • Seek a skilled Software Test Engineer with Chinese bilingual capability to oversee mobile software quality assurance and carrier certification testing for major North American operators.
  • Act as a critical technical bridge between onsite U.S. testing activities and the client's global R&D teams in Asia, ensuring seamless delivery and compliance of next-generation mobile devices.
  • Perform comprehensive 5G/4G protocol, Lab IOT, and live network field testing based on specific North American carrier prerequisite test cases.
  • Manage software defects end-to-end, escalate critical bugs and project risks, and cooperate with engineering compliance checks and regression testing.
  • Utilize advanced logging and debugging tools such as QXDM and Wireshark in a fast-paced, cross-functional testing environment.

[Duties and Responsibilities]
  • Test Execution & Validation: Perform comprehensive 5G/4G protocol, Lab IOT, and live network field testing based on specific North American carrier prerequisite test cases.
  • Defect Management: Promptly log, track, and manage software defects in the designated bug-tracking system according to established procedures, ensuring complete resolution and closure.
  • Risk Escalation: Immediately detect and escalate critical software bugs, system performance blocks, or project risks to the front-end testing contacts and R&D departments.
  • Compliance & Compliance Checks: Cooperate with client engineering compliance checks, execute rigorous regression testing, and conduct root-cause analyses on missed tests.
  • Cross-Functional Collaboration: Accept and efficiently execute testing task assignments from the Software Testing Department to meet strict milestone deadlines.
  • Facilitate direct, technical, and seamless communication/cooperation with R&D project teams, leveraging Chinese (Mandarin) language proficiency.
  • Must be able to accept night-time overtime/flexible hours to accommodate time-zone differences and maintain real-time progress alignment with Asia-based R&D centers.

[Skills & Qualifications]
  • Minimum 2+ years of hands-on experience in software testing for customized mobile communication terminal products (smartphones, wearables, etc.) for North American or European operators.
  • Strong familiarity with the testing procedures, certification processes, and node requirements of major North American operators (T-Mobile, Verizon, AT&T, and Dish).
  • Proficient/Fluent in Chinese (Mandarin): Must be able to facilitate direct, technical, and seamless communication/cooperation with domestic R&D project teams.
  • Fluent in English: Strong listening, speaking, reading, and writing skills to communicate effectively with front-line teams, local management, and carrier personnel.
  • Highly proficient in utilizing core logging and debugging tools (e.g., QXDM, Wireshark).
  • Acute eye for fault detection, proactive risk prediction, strong sense of responsibility, and high stress tolerance.
  • Prior experience with T-Mobile specific device validation preferred.
  • Experience in specialized testing areas such as Satellite network validation or Wi-Fi Passpoint environments preferred.

[JND Boilerplate]
Our team of highly experienced QA engineers ensures product quality across mobile and software platforms, offering a wide range of software testing and carrier certification positions at Samsung and other global industry leaders. We also have opportunities in tech/engineering, business operations, marketing, and many more!
Our vision is 'We Want to See You Grow' to become the industry leader for both employee and company.
For more information about JND, please visit www.jndsolutions.com
[Hashtags]
#Samsung #Mobile #5G #4G #SoftwareTesting #QA #ChineseBilingual #MidLevel #CarrierCertification #NetworkTesting

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