Oswaldo Dominguez
Oswaldo Dominguez

Senior Quality Engineer

Open to offers · Member since 5 Oct 2026
Location
Buenos Aires, Argentina
Desired salary
3000–12k USD/monthly
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Quality Engineer with more than seven years of experience in software quality, test automation, data validation, APIs, performance testing, and complex integrations. I have worked across regulated energy and telecommunications, e-commerce, and operational security environments.

I specialize in turning business requirements and complex processes into verifiable, reusable, and automated quality solutions. My approach is risk-based, prioritizing scenarios according to criticality, business impact, and operational value.

I have hands-on experience building end-to-end automation with Playwright, TypeScript, Cucumber, Selenium, and Page Object Model patterns. I also work with CI/CD pipelines and service virtualization to provide faster feedback and reduce dependency-related testing constraints.

Data quality is a central part of my work. I use SQL with Oracle and PostgreSQL for reconciliation, integrity validation, duplicate detection, batch-process verification, and cross-system consistency checks.

I investigate defects by correlating API requests and responses, database queries, application logs, and observability metrics. I collaborate closely with developers, product teams, analysts, and business stakeholders to clarify requirements, communicate risks, and drive actionable improvements.

I also use AI and LLM-assisted workflows for requirements analysis, test scenario design, code assistance, debugging, code review, and identifying automation opportunities. I am interested in remote opportunities where I can contribute to quality engineering, automation, data validation, and AI-enabled delivery practices.

Skills

27 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Application Utilities

Collaboration

Development

Experience

Career history

Senior QA Engineer Enerminds

Defined risk-based quality strategies for regulated energy and telecommunications systems, prioritizing functional, backend, data, API, performance, and automation scenarios based on risk, criticality, impact, and business value. Worked with development, product, and business analysis teams to clarify requirements, communicate risks, and convert technical findings into concrete actions.

Built end-to-end automation using Playwright, TypeScript, and Cucumber, integrated with GitLab CI for early feedback on critical and repetitive flows. Validated Oracle and PostgreSQL batch processes and data consistency through comparative SQL, integrity checks, reconciliation, and duplicate detection.

Investigated defects by correlating API requests and responses, SQL queries, logs, and Grafana metrics to create reproducible evidence and support root-cause analysis. Used SoapUI for service virtualization and mocking, designed load, stress, and concurrency tests with JMeter, and applied AI/LLMs to requirements analysis, test design, debugging, code review, and automation discovery.

Software QA Analyst Matrix CPM Solutions

Automated end-to-end tests for B2C e-commerce purchase, payment, and order-management flows using Selenium WebDriver and the Page Object Model. Focused on validating critical user journeys and supporting reliable release readiness.

Validated and reconciled orders, payments, and shipments through SQL to detect cross-system inconsistencies before releases. Tested APIs and integrations with Postman, validating contracts, error handling, and transactional flow consistency in collaboration with technical and functional teams.

Software QA Specialist ASTEC SA

Performed functional testing for operational security and control solutions, validating critical business processes with direct operational impact. Executed quality activities focused on reliability and correct system behavior.

Applied shift-left practices from early delivery stages to identify ambiguities, risks, and defects before production. Collaborated in improving requirement clarity and early quality feedback for operationally sensitive workflows.

Product, Data and Quality Project Contributor Independent Project - CH Conecta / Traslados Global VIP

Built a bilingual landing page for CH Conecta with lead capture, a server-side API, lead schema, email fallback, and optimized partner assets. Developed a Next.js solution for Traslados Global VIP covering landing, quote and contact, WhatsApp flow, conversion endpoint, resilient tracking, and a commercial-insights dashboard.

Designed Playwright QA suites and test matrices for forms, responsive behavior, tracking consistency, API coverage, non-functional checks, and separation of QA and real data. Defined local, QA, preview, and production environments and release flows, using AI/LLMs for analysis, development support, debugging, and Python scripts for asset and validation tasks.

Education

Learning history

Universidad Siglo 21

B.Sc., Computer Science

Bachelor of Science in Computer Science, currently in progress.

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