Senior QA Engineer

Overview

We are seeking an experienced Senior QA Engineer to lead the planning and execution of automated testing initiatives while driving continuous improvement of our quality assurance practices. In this role, you will play a key part in safeguarding product quality, and championing best-in-class QA standards across the software development lifecycle.

Responsibilities

• Ensure the quality, efficiency, and effectiveness of all testing efforts across products
• Collaborate with and lead cross-functional teams to achieve shared project objectives
• Design, develop, and complete both manual and automated test cases and scripts
• Build automated tests employing frameworks such as Cypress/Taiko
• Create reusable, modular scripts that can be applied across multiple automated test suites
• Review test cases and procedures to validate coverage and alignment with business requirements
• Complete testing activities in accordance with the test plan and overall project goals
• Communicate testing progress, results, and findings clearly and on time
• Continuously evaluate and enhance QA practices, including authoring and maintaining process documentation and guidelines
• Conduct impact analysis and regression testing for software changes
• Stay current with emerging technologies, tools, and QA methodologies, and actively share knowledge with the broader team

Qualifications

• Bachelor's degree in Computer Science or equivalent practical experience
• 5+ years of combined QA and development experience
• Strong proficiency in test automation and scripting
• In-depth understanding of QA activities across all phases of the SDLC
• Hands‑on experience with either Selenium, Cypress, or Taiko
• Experience with API testing using Swagger/Postman
• Familiarity with front‑end technologies such as Angular
• Experience testing across multiple platforms, browsers, and mobile devices using AWS testing tools
• Working knowledge of Agile methodologies
• Strong interpersonal skills with a collaborative, team‑oriented mindset
• Ability to work independently and manage multiple priorities effectively
• Excellent organizational and communication skills, both written and verbal
• Strong analytical, troubleshooting, problem‑solving, decision‑making, and negotiation abilities

Preferred Qualities

• Prior QA/Development experience in a product development environment
• Functional knowledge of Digital Marketing domains
• Exceptional analytical and problem‑solving capabilities
• Proven ability to diagnose and resolve issues quickly
• Strong time management skills and ability to take full ownership of tasks and features
• Relevant QA certifications are a plus

Benefits

• Time to Recharge: Flexible time off (FTO), 15 paid holidays
• Time to Recover: Paid sick time
• Family Well-Being: Parental/new child leave, childcare & elder care assistance, adoption assistance
• Extra Perks: Comprehensive health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, health coaching and counseling

Compensation

Compensation Range: USD $88,900.00 - USD $165,100.00 per year.

Location

For San Francisco Bay and Los Angeles Areas: Epsilon will consider for employment qualified applicants with criminal histories in a manner consistent with the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance and San Francisco Police Code Sections , commonly referred to as the San Francisco Fair Chance Ordinance. Applicants with criminal histories are welcome to apply.

Equal Opportunity

Epsilon is an Equal Opportunity Employer. Epsilon’s policy is not to discriminate against any applicant or employee based on actual or perceived race, age, sex or gender (including pregnancy), marital status, national origin, ancestry, citizenship status, mental or physical disability, religion, creed, color, sexual orientation, gender identity or expression (including transgender status), veteran status, genetic information, or any other characteristic protected by applicable federal, state or local law. Epsilon also prohibits harassment of applicants and employees based on any of these protected categories. Epsilon will provide accommodations to applicants needing accommodations to complete the application process. Please reach out to to request an accommodation.