Alexandru Simiz
Verified Expert in Engineering
Automation Testing Developer
Bucharest, Romania
Toptal member since October 18, 2022
Alexandru is an independent test automation engineer bringing over 6 years of expertise to complex, fast-paced software environments. Specializing in back-end, front-end, and mobile test framework architecture, he builds scalable automation solutions that accelerate delivery cycles and ensure flawless software reliability.
Portfolio
Experience
- QA Automation - 7 years
- E2E Testing - 6 years
- Web App Testing - 6 years
- Java - 6 years
- APIs - 6 years
- Jenkins - 5 years
- Mobile - 4 years
- Architecture - 3 years
Preferred Environment
Agile
The most amazing...
...project I've built was an end-to-end automation suite that cut regression testing time from days to under 30 minutes
Work Experience
QA Automation Consultant
Freelancer
- Built and mentored a 5-person mobile automation team from scratch, establishing autonomous workflows and high-performance execution for a fast-paced delivery project.
- Architected and developed a cross-platform real-device automation framework for Android and iOS from scratch, scaling to approximately 300 automated test scenarios.
- Integrated the framework into Jenkins CI/CD pipelines, establishing automated execution triggers and fast feedback loops for cross-platform releases.
- Configured and customized AI MCP tools to enhance test development velocity and streamline the refactoring release phase.
- Collaborated on the strategic test management plan to optimize regression packages, cutting manual release validation efforts by over 50%.
QA Automation Engineer
Freelance
- Led and scaled an automation team to 6 members, ensuring seamless coordination, efficient workflows, and supporting professional growth.
- Acted as the point of contact for discussions with development teams, business analysts (BA), project managers (PM), and product owners (PO).
- Developed 2 front-end frameworks for end-to-end testing and multiple back-end frameworks for contract testing from scratch.
- Created multiple end-to-end and contract testing frameworks.
- Developed an "alpha" template framework to streamline and improve the efficiency of contract testing.
- Created reusable packages for cross-service interaction to support multiple testing frameworks efficiently.
- Conducted performance testing to optimize server's resources usage.
- Offered support to the back-end developers in designing the endpoints.
- Leveraged AI tools to optimize processes and improve project delivery time.
- Designed and implemented automation test suites, enhancing test coverage and reducing manual testing efforts.
QA Automation Engineer
Freelance
- Collaborated closely with the Product Owner and Project Manager to streamline project delivery and improve the overall project approach from a testing perspective.
- Arhitected a robuts, end-to-end integration testing framework for both back-end and front-end components from the ground up.
- Executed targeted performance testing to measure, analyze and optimize response times across system layers.
- Conducted manual testing to maximize coverage of the development phase.
QA Automation Engineer
Freelance
- Led the refactorization team responsible for designing and implementing a modern, scalabel back-end testing framework from scratch.
- Collaborated with software engineering squads to configure Docker-based environments and set up mock servers, accelerating local development and integration cycles.
- Audited legacy regression suites, collaborated with teams to remove flaky coverage, and introduced targeted checks for critical business areas to maximize test suite reliability.
QA Automation Engineer
Deloitte Digital
- Developed a test automation framework for front- and back-end tests from scratch.
- Created, updated, and maintained the automation tests.
- Improved the existing automated tests and the test automation framework.
- Investigated and improved the regression packages.
- Mentored and provided training to my team's other quality assurance (QA) members to improve their automation skills.
QA Automation Engineer
Endava
- Developed the back and front end, database automation tests, and related test scenarios.
- Involved in creating framework architecture development.
- Improved and developed some enablers for the framework, such as Excel reader and writer.
- Investigated nightly regressions and maintained existing tests.
- Provided mentorship and training to my teammates.
Experience
Java Test Automation Framework
Education
Bachelor's Degree in Aerospace Engineering
Politehnica University - Bucharest, Romania
Skills
Libraries/APIs
REST APIs, Requests
Tools
Jenkins, GitHub, Apache Maven, Confluence, Apache JMeter, Amazon OpenSearch, Jira, Jira Xray, Grafana, GitLab, Prism, TestRail, Claude Code, Android Studio, Xcode
Languages
Java, C#, Python
Frameworks
Appium, Selenium, TestNG
Paradigms
Automated Testing, Test Automation, Automation, E2E Testing, Functional Testing, Testing, Behavior-driven Development (BDD), Azure DevOps, Agile, Manual Testing, REST, Model Context Protocol (MCP)
Platforms
Mobile, Amazon Web Services (AWS), Apache Kafka, Docker, OpenShift, Red Hat OpenShift
Storage
Elasticsearch
Other
QA Automation, Quality Assurance (QA), Automated UI Testing, Test Automation Frameworks, API Testing, Web App Testing, UI Automation, Automation Tools, Automation Testing, APIs, GitHub Actions, Pipelines, Architecture, Integration Testing, Testing Services, Web Service Testing, QA Testing, UI Testing, Website QA, Software QA, Regression Testing, AI Testing, Mobile Apps, Mobile Applications, Mock Server, Gauges, Kilo CLI
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring