Senior SDET

NetSPI+Synack is a leader in offensive security, combining elite human expertise with agentic AI to help organizations identify, validate, prioritize, and remediate exploitable risk across their entire attack surface. Its platform delivers expert-validated testing in depth, continuously, or on demand, from pre-production code to live production environments, so security teams can separate vulnerability noise from real risk, including the growing threat of AI-driven attacks. With global reach and more than 13 million hours of real-world offensive testing experience, NetSPI+Synack serves many of the world's largest enterprises and government organizations with one ambition: nothing left to exploit.

We are looking for individuals with a collaborative, innovative, and customer-first mindset to join our team. Learn more about our award-winning workplace culture and get to know our A-Team at and

Are you process-driven and notice the slightest deviation from the norm? If you get a thrill from helping to correct others’ mistakes and are not afraid to speak up, then this is the role for you. As a Senior QA Engineer you will work on game-changing problems in cybersecurity. You will validate software using cutting-edge technologies and take testing to the next level as part of a collaborative environment. Sounds interesting? Keep reading!

Here’s what you'll do

• Debugs software products through the use of systematic tests to develop, apply and maintain quality standards for firm products.
• Develops, modifies and executes software test plans, automated scripts and programs for testing.
• Contribute to the existing automation tools to add enhancements and improve maintainability
• Maintains documentation of test results to assist in debugging and modification of software.
• Analyzes test results to ensure existing functionality and recommends corrective action.
• Consults with development engineers in resolution of problems.
• Provides feedback in preparation of technical appraisals of programming languages, systems and computation software.
• Ensures quality computer integration into the overall functions of scientific computation, data acquisition and processing.
• Maintain and improve our automated testing and continuous integration systems
• Collaborate with a team of security and software engineers to develop system level testing
• Interface with sales and customers to recreate, diagnose, and help resolve field issues
• Learn new technologies as needed to build tools and improve efficiency and productivity

Here's what you'll need

• BS degree in Computer Science, or equivalent experience
• 7+ years in Software Quality Engineering, at least 3 of which as SDET and 2 years developing in Javascript/Typescript.
• You are proficient in Javascript and/or Typescript
• Experience developing internal tools to improve developer experience and productivity
• You have excellent debugging skills in diagnosing issues in a multi-tier web architecture
• Ability to adapt and work in a fast-paced agile environment
• Comfort with writing and reading code, and a basic understanding of data structures
• Hands on experience with automation framework design and development from scratch
• Experience with writing backend integration tests for RESTful APIs
• FE Test Automation expertise in TestCafe, Cypress, Playwright or similar tools (we use playwright)
• Experience with BDD tools
• CI tooling experience with Github Actions or similar understanding of source control and release management in the context of when/where/why/how to test
• Understanding of virtualization and containerization technologies (Docker)
• Understanding of Lean and Agile methodologies
• Understanding of Cloud technologies, like AWS, GCP, Azure
• Experience analyzing logs
• Experience testing agentic systems and using agents to optimize daily workflow

Nice to have

• Experience with testing cloud based products/applications
• Knowledge and understanding of different kinds of VPNs
• Experience with load and performance testing

Ready to join us?

Synack is committed to embracing diversity. Our people are our strength. Each addition to our team is an opportunity to grow and diversify our ideas, experiences, and viewpoints. Synack strives to be inclusive of all people.

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This position has responsibility to ensure Synack’s security and privacy posture is maintained.

$170,000 - $200,000 Salary is determined by a combination of factors including location, level, relevant experience, and skills. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations. The compensation package for this position may also include equity, and benefits.