Marcus T. Delgado

Profile

Senior QA Tester with 7 years of experience in web, mobile, and API testing across fintech and SaaS products. Specializes in building automated regression suites with Selenium and Cypress that cut release cycle time by up to 40%. Holds an ISTQB Advanced Level certification and a track record of reducing post-release defect rates to under 0.5% across three consecutive product launches.

Work Experience

Senior QA TesterMar 2021 - Present

Vantara Financial Technologies, Austin, TX

Designed and maintained a Cypress-based end-to-end test suite covering 1,200+ test cases, reducing manual regression effort by 62% and shortening sprint release cycles from 10 days to 6.
Identified and documented 340+ defects across 4 major product releases, achieving a post-release escaped-defect rate of 0.3% against an industry benchmark of 2.1%.
Led cross-functional triage sessions with 3 engineering squads, cutting average defect-resolution time from 9 days to 4 days by introducing a severity-tiered bug classification framework.

QA Tester IIJun 2018 - Feb 2021

Looptide Software, Denver, CO

Built a Selenium + TestNG regression framework from scratch that automated 78% of previously manual test cases, saving approximately 120 engineer-hours per quarterly release.
Executed performance and load testing using JMeter against REST APIs, uncovering a memory-leak bottleneck that, once resolved, improved average API response time by 44%.
Mentored 2 junior QA analysts, conducting weekly code-review sessions on test scripts that raised team automation coverage from 31% to 67% over 18 months.

Junior QA TesterAug 2016 - May 2018

Brightpath Digital Agency, Dallas, TX

Performed functional, regression, and UAT testing for 14 client web applications, logging defects in JIRA and maintaining traceability matrices that satisfied audit requirements for 3 enterprise clients.
Reduced test-case authoring time by 30% by standardizing a reusable test-plan template adopted across all 6 active project teams.
Collaborated with developers during daily standups to reproduce and verify 200+ bug fixes, maintaining a first-pass verification success rate of 91%.

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