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Dionisio Fernandez

@dionisiofernandez

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Senior QA Automation Engineer building shift-left test frameworks with Selenium and Playwright.

Chile

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What I'm looking for

I’m looking for an engineering team where I can own shift-left quality, build automation frameworks end-to-end, and integrate testing into CI/CD—collaborating with developers to improve reliability, performance, and delivery speed.

I’m a Senior QA Automation engineer with 15+ years in software engineering and 4+ years leading end-to-end automation strategies for large corporate clients (Walmart, Sodimac, IKEA, Consorcio). I build test frameworks from scratch on the Page Object Model using Selenium and Playwright, and I partner with development on testability from day one.

I integrate QA into CI/CD pipelines with a shift-left approach—implementing automated checks that gate every release and support daily zero-downtime deployments. My full-stack background helps me automate at the right layer: API, integration, UI, and load, so quality moves with delivery instead of slowing it down.

Across my roles, I’ve improved efficiency by parallelizing Selenium/Selenoid to cut execution time (24h to 8h) and reduced flaky tests by 70%. I also lead QA squads, orchestrate stakeholder alignment for performance engineering, and drive automated certification and migrations to new architectures.

Experience

Work history, roles, and key accomplishments

Head of Engineering

GoodProp

Oct 2024 - Feb 2026 (1 year 4 months)

Established a shift-left quality culture by integrating automated testing and code review into the delivery process. Implemented CI/CD with daily zero-downtime deployments and release gating for a quoting tool and real-estate marketplace used across 300+ projects and 20,000 units.

Shift Left QA Automated Testing CI CD Zero Downtime Deployments Release Gating GitHub Actions Gitlab CI Docker Playwright

Lead Backend Developer

Finup

Sep 2023 - Sep 2024 (1 year)

Designed the platform backend and REST API, defining deployment and pre-production validation strategies. Optimized latency to support 15,000+ users on the platform.

Backend Engineering REST APIs Product Validation Performance Optimization API Integration Quality Gates

Deputy Operations Manager

Haka Lab

Oct 2023 - Jul 2024 (9 months)

Oversaw 6 corporate accounts, ensuring technical delivery excellence. Designed tailored technology roadmaps to guide planning and execution.

Technical Delivery Management Account Leadership Stakeholder Management Roadmapping

QA Automation Service Lead

Haka Lab

Jul 2020 - Oct 2023 (3 years 3 months)

Devised a regression strategy that cut test execution from 24h to 8h (67%) by parallelizing with Selenium/Selenoid. Reduced flaky tests by 70% for Sodimac’s Salesforce CRM QA and delivered Page Object Model-based automation frameworks integrated into CI/CD.

Selenium Selenoid Page Object Model Regression Testing Test Automation Parallel Testing Microservices Testing End To End Testing

Senior Software Developer

BSTR.IO

Mar 2019 - Jul 2021 (2 years 4 months)

Developed modules for IP telephony systems on Asterisk using SOLID and Clean Architecture. Built mobile and web apps for precision agriculture.

Asterisk IP Telephony SOLID Clean Architecture System Integration Mobile Development Web Application Development

Software Factory Manager

Haibu Solutions

Mar 2016 - Mar 2019 (3 years)

Led remote software factories (Chillán–Santiago) and managed mobile development delivery for VTR. Ensured quality of deliverables through oversight of execution and delivery processes.

Remote Team Leadership Software Factories Mobile Development Quality Assurance Process Management