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Sr Software Development Engineer In Test Jobs in California

Socket.dev

Staff/Senior SDET

Palo Alto, CA · On-site

$140 - $180/hr

Position Overview We are seeking a Staff/Senior SDET to join our growing team. This is a hands‑on, builder‑first role -- you'll spend most of your time testing and writing code: designing and ...

New

loanDepot

Sr. SDET (Selenium/Automation)

Irvine, CA · On-site

  • Medical

  • Dental

  • Vision

  • PTO

The Senior Software Development Engineer in Test is responsible for designing, developing, and maintaining automated testing solutions that improve software quality, reduce production risk, and ...

loanDepot

Sr. SDET (Selenium/Automation)

Irvine, CA

  • Medical

  • Dental

  • Vision

  • PTO

The Senior Software Development Engineer in Test is responsible for designing, developing, and maintaining automated testing solutions that improve software quality, reduce production risk, and ...

Visa Hunt

Senior SDET, API / Security

Cameron Park, CA · On-site

$150 - $190/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Description Keeper Security is hiring a Senior Software Development Engineer in Test (SDET) to focus on API and security testing for our enterprise‑grade applications. In this role, you will design ...

New

loanDepot

Sr. SDET (Selenium/Automation)

Irvine, CA · On-site

  • Medical

  • Dental

  • Vision

  • PTO

The Senior Software Development Engineer in Test is responsible for designing, developing, and maintaining automated testing solutions that improve software quality, reduce production risk, and ...

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Sr Software Development Engineer In Test information

What is a Sr Software Development Engineer in Test?

A Sr Software Development Engineer In Test (Sr SDET) is a senior-level professional responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality of software products. They work closely with developers and other QA team members to create robust testing strategies, identify defects, and improve the overall software development process. Sr SDETs have advanced programming skills, deep knowledge of test automation, and often mentor junior team members. Their goal is to enable efficient, reliable, and scalable automated testing throughout the software development lifecycle.

What are the key skills and qualifications needed to thrive as a Sr Software Development Engineer in Test?

To thrive as a Sr Software Development Engineer In Test, you need advanced programming skills (such as Java, Python, or C#), deep understanding of software testing methodologies, and a bachelor’s or master’s degree in computer science or a related field. Expertise with automation frameworks (like Selenium or Cypress), CI/CD tools (Jenkins, Git), and test management systems is typically required, along with certifications such as ISTQB being beneficial. Exceptional problem-solving abilities, attention to detail, and strong collaboration and communication skills distinguish standout professionals in this role. These competencies ensure the delivery of high-quality, reliable software products through efficient test automation and seamless teamwork.

What are some common challenges faced by a Sr Software Development Engineer in Test when working on large-scale projects?

Sr Software Development Engineers in Test (SDETs) often encounter challenges such as managing complex test automation frameworks, ensuring comprehensive test coverage for rapidly evolving codebases, and coordinating with multiple development and QA teams. Balancing the need for speed in continuous integration pipelines with maintaining high-quality standards can also be demanding. Additionally, SDETs are frequently responsible for mentoring junior testers and advocating for best testing practices across cross-functional teams, which requires strong communication and leadership skills.

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

AspectSr Software Development Engineer In TestSoftware Development Engineer In Test
Required CredentialsBachelor's/Master's in CS or related, experience in automation testingBachelor's in CS or related, focus on automation skills
Work EnvironmentDesigns and develops complex test frameworks, leads testing initiativesDevelops and maintains test scripts, executes testing
Employer & Industry UsageUsed in tech companies, especially in QA and testing teamsCommon in software development companies, focusing on testing automation

The main difference is that a Sr Software Development Engineer In Test typically has more experience, leads testing efforts, and designs complex testing frameworks, while a Software Development Engineer In Test primarily focuses on developing and executing test scripts. Both roles require strong automation skills and are vital in ensuring software quality, but the senior role involves more leadership and strategic testing responsibilities.

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Sr Software Development Engineer In Test jobs near you
Infographic showing various Sr Software Development Engineer In Test job openings in California as of August 2026, with employment types broken down into 1% As Needed, 80% Full Time, 15% Part Time, and 4% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution.

Sr. Software Development Engineer in Test, AI/ML

PlayStation Global

San Mateo, CA

$125K - $163K/yr

Full-time

Re-posted 15 days ago

Job description

Sr. Software Development Engineer in Test, AI/MLSan Mateo, CA

Do you have a passion for test automation? We are looking for self-motivated, quick-starter and highly proactive individuals to join our full stack team, who will be testing new and existing features on multiple platforms and devices in a software development environment and ensuring quality of automation and test frameworks.

At PlayStation, we are passionate about both collaboration and technology. We love building the systems that millions of people use and are our own first customers. We are committed to being at the forefront of development technologies and are a diverse company with teams on four continents.

Primary Responsibilities:
  • Lead end-to-end QE strategy for sophisticated features, systems, and platform integrations across PlayStation applications and services
  • Architect, design, and implement scalable automated test frameworks for UI, API, integration, and system-level testing
  • Define comprehensive test strategies, risk assessments, and quality metrics aligned with product and engineering goals
  • Develop and maintain robust automated test suites for web, backend, and platform services using modern automation tools and frameworks
  • Drive automation guidelines, coding standards, and continuous improvement initiatives across QE and development teams
  • Mentor junior and mid-level SDETs/QEs through code reviews, technical guidance, and testing strategy leadership
  • Collaborate closely with software engineers, product managers, DevOps, and release teams to improve overall software quality and delivery efficiency
  • Analyze test results, production issues, and system telemetry to identify root causes and implement long-term quality improvements
  • Build and optimize CI/CD automation pipelines to support continuous testing and rapid release cycles
  • Advocate for shift-left testing, testability improvements, and quality engineering culture across distributed teams
Requirements:
  • BS or MS in Computer Science, Engineering, or related technical field, or equivalent
  • 6+ years of experience in Software Development Engineering in Test (SDET), Quality Engineering, or automation-focused software development
  • Experience testing machine learning systems, such as recommendation systems, search ranking systems, or other probabilistic ML application systems
  • Strong programming expertise in Python, JavaScript/TypeScript, Java, C++, or similar object-oriented programming languages
  • Extensive experience designing scalable test automation frameworks and infrastructure from the ground up
  • Advanced experience with Selenium or Appium or UI Automation technologies
  • Deep understanding of APIs (RESTful), Libraries, SDK/Application Frameworks, Native Applications, microservices, and backend validation
  • Strong experience with modern frontend frameworks such as React
  • Experience implementing automated testing in CI/CD environments using Jenkins, GitHub Actions, CircleCI, or similar tools
  • Excellent technical communication, leadership, mentoring, analytical, and problem-solving skills
  • Ability to independently lead large-scale quality initiatives and influence engineering guidelines
Bonus Qualifications:
  • Experience testing or developing applications for gaming consoles, embedded systems, streaming devices, or consumer electronics
  • Experience building internal developer tools, automation platforms, or test infrastructure services
  • Experience integrating automated testing into large-scale CI/CD and release management pipelines
  • Experience leading QE transformation initiatives or mentoring high-performing engineering teams

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