Senior Software Development Engineer in Test (Sr. SDET)

Description
About the Role
We are seeking a highly experienced Senior Software Development Engineer in Test (Sr. SDET) who combines strong technical depth with leadership qualities to join NinjaOne's Analytics and Reporting Platform Team. Use your expertise as someone who can mentor others, drive automation strategy, elevate engineering standards, and collaborate across teams to ensure world-class product quality. Demonstrate your knowledge in the testing process, modern programming languages, CI/CD systems, and AI-driven testing technologies such as TestRigor.
Apply your passionate expertise in software quality assurance, building scalable, maintainable automation systems and continuously improving the Software Development Life Cycle (SDLC) and Software Testing Lifecycle (STLC)processes. Work with a top-tier engineering and management team as you manage a stream of new and exciting challenges that will impact on our product quality and customer satisfaction, contributing to growth and revenue for NinjaOne.
Location - We are flexible on remote working from home, if you are located in the USA and reside in one of the following states - CA, CO, CT, FL, GA, *IL, KS, MA, MD, ME, NJ, NC, NY, OR, TN, TX, VA, and WA. We have physical offices in Austin, TX and Tampa, FL, if you prefer a hybrid option.
We hire the best software engineers, but experience in our stack can't hurt: NinjaOne is built on Java, Kotlin, C++, Golang and Postgres, supporting millions of user endpoints and running as a scalable cloud service in AWS. Knowing large-scale datastore bottlenecks, asynchronous application design and client-server architecture will help you.
What You'll be Doing

• Automation Development: Create software automation tests to ensure regression coverage across our products. Evaluate requirements for designing test scenarios to ensure maximum testing traceability. Implement new testing automation against our existing applications. collaborate with the development team to define a testing protocol for new features as they are designed and developed.
• Technical Strategy: Provide architectural insight using our current or new testing infrastructure to build best practice testing solutions. evangelize quality and a testing first approach in our software development life cycle from beginning to end.
• Quality Testing & Troubleshooting: Responsible for comprehensive software testing, guaranteeing impeccable feature releases of our software products. Develop and maintain accurate test plans, test strategies, shift left testing and ensure compliance across all platforms.
• Collaboration: Partner with our talented QA Engineers, developers, product managers, and leaders across our product teams throughout the software development life cycle, ensuring that quality standards are always achieved.
• Other duties as needed.

About You

• Bachelor's degree in computer science, Information Technology, related technical degree or equivalent work experience.
• 10+ years designing, developing, and executing automated test frameworks, test strategies, and comprehensive test plans.
• Strong commitment to quality engineering, automation best practices, and continuous improvement across the SDLC and STLC.
• Exceptional diagnostic, analytical, troubleshooting, and problem-solving abilities to identify and resolve complex issues.
• Advanced programming skills in Java, JavaScript, and TypeScript, with an emphasis on building maintainable and scalable automation solutions.
• Extensive experience with automation frameworks such as Selenium, RestAssured, or similar tools.
• Solid understanding of CI/CD pipelines and hands-on experience using tools such as CircleCI, or TeamCity.
• Experience testing APIs, and distributed systems, including validating data integrity and system integrations.
• Familiarity with cloud services AWS, Azure, or GCP and test execution at scale.
• Strong understanding of Git workflows, branching strategies, and code quality best practices
• Hands-on experience with AI-driven automation, specifically implementing and optimizing test workflows using TestRigor.
• Excellent communication skills, both written and verbal, with the ability to collaborate across cross-functional teams.
• Ability to manage multiple projects in a fast-paced environment, working efficiently under pressure with changing priorities. Experience mentoring junior engineers, conducting detailed PR reviews, and driving engineering quality across teams.
• Hands-on experience with containerization, such as Docker, and understanding of DevOps concepts is preferred.
• Ability to drive automation strategy, increase automation coverage, and improve overall test efficiency for complex applications.
• Experience with performance testing, using tools like JMeter, Gatling, or k6, is a plus.

About Us
NinjaOne automates the hardest parts of IT to deliver visibility, security, and control over all endpoints for more than 30,000 customers. The NinjaOne automated endpoint management platform is proven to increase productivity, reduce security risk, and lower costs for IT teams and managed service providers. NinjaOne is obsessed with customer success and provides free and unlimited onboarding, training, and support. NinjaOne is #1 on G2 in endpoint management, patch management, remote monitoring and management, and mobile device management.
What You'll Love
We are a collaborative, kind, and curious community.
We honor your flexibility needs with full-time work that is hybrid remote.
We have you covered with our comprehensive benefits package, which includes medical, dental, and vision insurance.
We help you prepare for your financial future with our 401(k) plan.
We prioritize your work-life balance with our unlimited PTO.
We reward your work with opportunities for growth and advancement.
Additional Information
This position is NOT eligible for Visa sponsorship.
*Due to operational policies, NinjaOne is unable to hire for this role within the city limits of Chicago. We will consider all qualified candidates who reside outside of the city proper or are willing to self-relocate.
Starting pay for the successful applicant depends on a variety of job-related factors, including but not limited to location, market demands, experience, job-related knowledge, and skills. The benefits available for this position include medical, dental, vision, 401(k) plan, life insurance coverage and PTO. For roles based in California, Colorado, Maryland, New Jersey, or Washington the base salary hiring range for this position is $110,000 to $200,000 per year.
For roles based in New York, the base salary hiring range for this position is $110,000 to $200,000 per year.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, veteran status, or any other status protected by applicable law. We are committed to providing an inclusive and diverse work environment.
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