Senior Quality Engineer

Senior Quality Engineer

New York City, NY

Los Angeles, CA

Broomfield, CO

Buffalo, NY

Hybrid Schedule (M/F remote, T/W/TH in-office)

At Magnite, we cultivate an environment of continuous growth and collaboration. Our work impacts what millions of people read, watch, and buy, and we’re looking for people to help us tackle that responsibility with creativity and focus.  Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising platform. Publishers use our technology to monetize their content across all screens and formats including CTV / streaming, online video, display, and audio. Our tech fuels billions of transactions per day!

About this team:

We are looking for a Senior Quality Engineer to join our Streaming Ad Server team to help ensure quality is baked into the entire Software Development Lifecycle.  On this team you will work on a globally distributed ad serving system that handles hundreds of billions of requests a day. You have the opportunity to take on project initiatives to improve the confidence, stability and delivery of our systems, tackle hard technical challenges, and contribute to a team of passionate individuals.

In this role you will:  

• Test Strategy & Design: Develop and lead effective test strategies for complex, large-scale integration projects by thoroughly analyzing software systems.

• Test Plan & Automation Framework Development: Architect, build, and maintain scalable, robust automated testing frameworks using industry-standard tools to support continuous integration and delivery (CI/CD) processes.

• Automation Implementation: Create and implement automated tests that execute key test strategies, ensuring they are repeatable, maintainable, and robust. Step in with manual testing when automated solutions aren’t feasible.

• AI-Driven Test Coverage & Tooling: Pioneer the use of AI techniques (e.g., fuzzing, model-based testing, generative AI) to automatically create comprehensive test cases and significantly increase coverage for complex, large-scale systems.

• Intelligent Test Automation Development: Architect and implement AI-powered custom testing tools, such as self-healing frameworks and intelligent defect prediction systems, to enhance the robustness and efficiency of the automated testing ecosystem.

• CI/CD Integration: Collaborate closely with DevOps to integrate automated testing into CI/CD pipelines, optimizing the delivery process.

• Troubleshooting & Debugging: Utilize strong troubleshooting skills to isolate and resolve issues, perform root cause analysis, and validate bug fixes to ensure smooth releases.

• Cross-Functional Collaboration: Partner with product, project, and development teams to identify, assess, and address technical, business, and process-related issues that impact quality.

• Innovation & Research: Stay at the forefront of testing technology by researching and developing proofs of concept for new tools, methodologies, and best practices.

• Quality Assurance Ownership: Take end-to-end responsibility for quality assurance by managing the QA sign-off process for releases.

We’re looking for someone with: 

• QA & Automation Experience: 5+ years of demonstrated hands-on experience in software QA and test automation, exhibiting continual technical growth, increasing responsibility, and a track record of driving significant improvements to testing practices.

• Experience in AI/Automation Integration: Proven ability to integrate Artificial Intelligence methodologies into existing test automation frameworks to expand coverage and reduce maintenance overhead.

• Education: Bachelor’s degree in Computer Science, a related technical field, or equivalent practical experience.

• CI/CD & Release Management: Proven experience with CI/CD pipelines and release management tools.

• API Testing: Strong ability to design and implement API smoke, regression, and end-to-end tests, ensuring robust integration across components.

• Backend & Service Testing: Solid understanding of backend and service testing, with a focus on performance, scalability, and security.

• Programming Languages: Proficiency in Python and/or Java, along with experience in scripting languages.

• Infrastructure & Observability: Familiarity with cloud infrastructure, distributed systems, and observability tools to support monitoring and debugging.

Nice to Have: 

• Experience with the Ad Tech industry.

• Exposure to specialized tools or platforms used for prompt engineering and utilizing generative AI to accelerate test script creation or synthetic data generation.

• Practical experience with AI tools or frameworks leveraged for predictive quality metrics, root cause analysis, or optimization of test execution.

• Hands-on experience with AWS services for deploying, testing, and monitoring applications in cloud environments.

In the US, the base salary range for this role is $135,000 – $165,000.
Actual compensation will be determined based on location, experience, skills, and internal equity.

This role is also eligible for:

• Annual performance-based bonus

• Equity (NASDAQ: MGNI)

• Comprehensive benefits package

During the interview process, candidates will receive more specific information about the salary range applicable to their experience and location.

Perks and Benefits: 

• Comprehensive Healthcare Coverage from Day One

• Generous Time Off  

• Holiday Breaks and Quarterly Wellness Days

• Equity and Employee Stock Purchase Plan

• Family-Focused Benefits and Parental Leave 

• 401k Retirement Savings Plan with Employer Match

• Disability and Life Insurance

• Cell Phone Subsidy

• Monthly Fitness and Reimbursement

Career Growth:

We support internal mobility, skill development, and leadership pathways through structured career frameworks and learning programs.

Company Culture: 

Magnite’s culture is rooted in collaboration and connection, recognizing that both are essential to success. Our hybrid schedule includes two remote workdays (Monday and Friday) and three in-office days (Tuesday through Thursday), where employees can take advantage of catered lunches, beverages, snacks, training opportunities, and engaging office events that enhance the work experience. In addition, we support our team through meaningful benefits and programs, including community service and volunteer opportunities, company-matched charitable contributions, access to mental health resources, structured career development initiatives and growth frameworks, culture and inclusion programs, and our Bonusly peer-to-peer recognition platform.

About Us

The world's leading agencies and brands trust our platform to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month. Anchored in bustling New York City, sunny Los Angeles, mile-high Denver, historic London, and down under in Sydney, Magnite has offices across North America, EMEA, LATAM, and APAC.

For Los Angeles-based applicants: 

Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

The material job duties of this specific job position for which Magnite reasonably believes that a criminal history may have a direct, adverse, and negative relationship include:

• Having access to the Company’s Confidential Information or trade secrets including data related to customers, clients, vendors, business partners, or suppliers 

• Work with cross teams  to access datasets, databases, formulas, algorithms, tools, products, prototypes, systems applications, and technologies in any stage of development 

Magnite is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation or any other federal, state or local protected class.

Our Commitment: We aim to incorporate a wide range of voices into our Magnite culture, cultivating an environment where employees feel welcomed, cared for, and encouraged to freely share ideas. We are committed to employee growth, collaboration, inclusion, and innovation.  We invest in Magnite’s local communities. We seek talent from all backgrounds to champion corporate values of seeing the big picture and being catalysts of change.

Want to learn more about us?  

Check out our blog for Magnite announcements and Ad Tech industry news! 

Recruiting Agency Notice

Magnite does not accept agency resumes and is not responsible for any fees related to unsolicited resumes.