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Sr Software Development Engineer In Test Jobs in Sunnyvale, CA

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$26.4K

$147.4K

$191.9K

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

As of Aug 22, 2026, the average yearly pay for sr software development engineer in test in Sunnyvale, CA is $147,365.00, according to ZipRecruiter salary data. Most workers in this role earn between $129,700.00 and $168,400.00 per year, depending on experience, location, and employer.

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 Sunnyvale, CA as of August 2026, with employment types broken down into 1% As Needed, 77% Full Time, 20% Part Time, and 2% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution, with an average salary of $147,365 per year, or $70.8 per hour.

Senior Software Development Engineer Test (SDET)

Forge Global

San Francisco, CA • On-site

$175K - $205K/yr

Full-time

Posted 23 days ago

Job description

The Role: 

Forge's quality engineering team's charter is to improve product quality. We thrive on holding high standards, obsessing over our customers, and living our values of being bold, humble and accountable.

We are seeking a Sr Software Development Engineer in Test with experience developing testing solutions and tooling to improve quality for financial trading systems or similar applications. This role will work on our platform and reliability engineering team. These teams own Forge's infrastructure, developer experience and deployment engineering. We are looking for a senior, technical and customer focused candidate who will also embody Forge values. The ideal candidate thrives in team settings and is motivated by creating success all around them through strong communication, shipping great product experiences, and making data-driven decisions. They will be working closely with other quality engineers in the team to define and execute the testing strategy.

Responsibilities:

  • Build comprehensive bottoms up Test Strategies for infrastructure changes and releases
  • Built test automation frameworks, tools, solutions to make testing faster, efficient and stable
  • Leverage artificial intelligence technologies to augment testing activities
  • Experience with AI solutions such as agentic automation, MCPs, RAG applications etc
  • Write tests plans covering various customer use cases - functional, compliance & legal aspects
  • Engage is projects from the initiation phase to identify gaps in requirement and failure modes in design
  • Automate tests based on what's most valuable and high priority
  • Collaborate with Forge's product, design, information security and business team members to quickly grasp domain knowledge.
  • Develop concise, articulate, and detailed documentation[RP1.1][AD1.2]
  • Participate in scope definition, requirements analysis, functional and technical test design, test gap analysis with assistance from other team members
  • Provide technical assistance in the diagnosis of issues
  • Assist in identification of defect trends of their areas and partner with development teams to fix the root cause

Qualifications: 

  • Bachelor's degree in Computer Science, Engineering, or related field (or 5 years software engineering experience)
  • 5-10 years of software testing experience
  • Fintech, Trading or Financial services industry experience
  • Experience in leading quality efforts for internet applications
  • Experience in test automation on UI, API or others
  • Experience in enhancing existing Test Automation frameworks - Playwright, Cypress, Selenium, K6 etc.
  • Experience with CI/CD Pipelines
  • Fluency with AI technologies related to testing and validation

Desired Qualifications: 

  • Experience in E2E Automation, contract testing, API Automation, load & performance testing
  • Experience mentoring other quality engineers
  • Proven track-record of teamwork and delivery
  • Experience at high-growth, venture-backed startups

For residents of the San Francisco, CA area, the annual salary range for this role is $175,000 - $205,000 + annual bonus. Final offers may vary from the amount listed based on geography, candidate experience and expertise, bonus, and other factors

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