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Senior Quality Assurance Specialist

Criticalmass

San Jose permanent

Posted: December 3, 2025

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Job Description

A Senior QA reports to a QA Lead. Works closely with QA lead, QA Subject Matter Experts, other QA members, project managers, designers and developers to ensure QA standards and client satisfaction are delivered thought-out the account. A Senior QA is someone that brings analytical thinking and support to the team and QA lead on many tasks.

You Will:

• Be developing a mix of manual testing with required experience in: API testing (must-have) and performance testing.

• Is responsible to perform any of the QA tasks with barely any guidance

• Plans, conducts and technically directs projects or major phases of significant projects

• Responsible of analyze and understand requirements, and design specifications to ensure a quality process

• Responsible to attend, lead and/or organize meetings on behalf of team

• Responsible to promote and evaluate QA values and principles not only for the QA team but for everyone in the company and our clients.

• Support QA lead to work and motivate other team members in a team-oriented and collaborative environment with both technical and non-technical team members

• Responsible to communicate test results, issues, and risks to project team members, project managers, and QA management through the different channels

• Responsible to promote effective communication, a sense of participation and involvement amongst QA members.

• Responsible of test data identification

• Creating and maintaining comprehensive test plans

• Writing and maintaining test cases/scripts following high quality standards

• Create traceability matrix documents based upon project requirements

• Create checklist documentation based upon project requirements

• Performing functional and non-funtional testing

• Effectively communicating statuses

• Develop test design documents to cover requirements

• Plan and schedule test activities to ensure quality

• Apply industry standard testing methodology, strategies and industry best practices

• Create defect tickets and track issues to resolution and risk analysis of said issues

• Report creation and related metrics at different levels

• Overseeing, delegating and coordinating work to other QA Associates and apprentices, as needed.

• Development of junior staff members

• Creating and executing regression tests based on design specifications and requirements

• Conducting research into new technologies, including tools, components, and frameworks related to QA

• Support QA Lead in QA estimations

• Responsible to identify with the QA lead areas where automation tools can be applied for the benefit of the project

• Identify and raise risks

• Supports the QA lead on onboarding, coaching and mentoring activities.

You Have:

• Experience with manual testing: API testing (must-have) and Performance testing

• Background in Computer Science (or related field) is important, as the candidate must be able to read and understand code.

• Must have proven experience in creating test cases and test plans.

• Experience with Playwright automation is desired but not mandatory (nice to have)

• Minimun 5 years of experience in Software Quality Assurance.

• Knowledge of Agile Methodologies for software development

• Experience working with local and offshore teams

• Experience in task management and defect tracking tools like Jira and/or similar

• Extensive knowledge of Windows or MacOS software is expected.

• Ideally English Proficiency (B2+ reading, writing, and conversation)

What We Offer

• Maternity and parental leave extra days

• Competitive benefits packages

• Vacation, compassionate leave, sick days, and flex days

• Access to free online services for families and new parents

• Diversity and Inclusion Board with 12 affinity groups

• Internal learning and development programs

• Enterprise-wide employee discounts

• And more…

At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!

The Talent Team at Critical Mass focuses on providing the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.

Critical Mass is an equal opportunity employer.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.

If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx

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