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I'm Josué Aldaco Fonseca, a QA Engineer focused on delivering high-quality software. With 4+ years in Agile environments, I excel at manual testing, data validation, API testing, and building reliable Playwright automation in TypeScript. My work balances thorough validation with a collaborative, release-focused mindset. I'm actively expanding my automation toolkit, embracing Page Object Model, CI/CD integration with Azure Pipelines, and robust API testing strategies to modernize QA practices and keep releases on schedule.…I'm Josué Aldaco Fonseca, a QA Engineer focused on delivering high-quality software. With 4+ years in Agile environments, I excel at manual testing, data validation, API testing, and building reliable Playwright automation in TypeScript. My work balances thorough validation with a collaborative, release-focused mindset. I'm actively expanding my automation toolkit, embracing Page Object Model, CI/CD integration with Azure Pipelines, and robust API testing strategies to modernize QA practices and keep releases on schedule.

Josué Aldaco Fonseca

QA Engineer, Data Analyst, Web Developer, +2

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I'm Josué Aldaco Fonseca, a QA Engineer focused on delivering high-quality software. With 4+ years in Agile environments, I excel at manual testing, data validation, API testing, and building reliable Playwright automation in TypeScript. My work balances thorough validation with a collaborative, release-focused mindset. I'm actively expanding my automation toolkit, embracing Page Object Model, CI/CD integration with Azure Pipelines, and robust API testing strategies to modernize QA practices and keep releases on schedule.…I'm Josué Aldaco Fonseca, a QA Engineer focused on delivering high-quality software. With 4+ years in Agile environments, I excel at manual testing, data validation, API testing, and building reliable Playwright automation in TypeScript. My work balances thorough validation with a collaborative, release-focused mindset. I'm actively expanding my automation toolkit, embracing Page Object Model, CI/CD integration with Azure Pipelines, and robust API testing strategies to modernize QA practices and keep releases on schedule.

Available to hire

I’m Josué Aldaco Fonseca, a QA Engineer focused on delivering high-quality software. With 4+ years in Agile environments, I excel at manual testing, data validation, API testing, and building reliable Playwright automation in TypeScript. My work balances thorough validation with a collaborative, release-focused mindset.

I’m actively expanding my automation toolkit, embracing Page Object Model, CI/CD integration with Azure Pipelines, and robust API testing strategies to modernize QA practices and keep releases on schedule.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

QA Engineer at NTT Data

December 1, 2024 - July 1, 2025

Designed and executed 150+ manual and automated test cases for an Azure-deployed web application, contributing to a reduction in production-escape defects across quarterly releases. Built automated UI test scenarios using Playwright (TypeScript) in VS Code, reducing manual regression effort on core user flows by approximately 25%. Reviewed and validated pipeline-triggered test runs in Azure Pipelines, ensuring test gates were met before environment promotions. Authored test plans, release checklists, and backend validation scripts (SQL) that supported 3+ production releases with zero critical post-release defects.

QA Engineer at Confidential Company

November 1, 2023 - August 1, 2024

Cross-Browser & Multi-Environment Testing: Executed functional, integration, and regression testing for a mail web application across 4+ browser/environment combinations, ensuring consistent behavior pre-release. Defect Management: Tracked, triaged, and reported 100+ bugs in Jira throughout the SDLC, collaborating with developers to drive resolution within sprint cycles. UI Validation: Pixel-perfect UI testing against design specs, catching visual regressions before they reached end users. Build Monitoring: Participated in build monitoring and smoke testing after each deployment, reducing time-to-detect for critical issues.

QA Software Engineer & Data Analyst/Validator at Advancio

October 1, 2021 - October 1, 2023

Regression & Release Testing: Executed manual and regression test cycles for frequent Agile releases, maintaining test plans and defect logs that supported 20+ sprint deliveries over 12 months. Process Improvement: Standardized test case templates adopted by the QA team, improving consistency and reducing test authoring time by ~20%. SQL Data Validation (2021–2022): Designed and executed SQL queries in SQL Server Management Studio to validate large datasets across 5+ database environments, preventing data integrity issues from reaching production. Full SDLC Coverage: Performed backend, functional, and regression testing across all SDLC phases—from requirements review to post-release validation. Defect Reporting: Documented and communicated defects clearly to development teams, achieving consistent resolution within the same sprint.