Kellen X.
QA Engineer

Skills

Sql

Java

Javascript

Kellen is available for hire

Hire Kellen X.

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Bio

Graduate in Systems Analysis and Development with professional experience in support analysis, transitioning into front-end development. Initial roles included customer service and maintenance for web and mobile projects, eventually moving into a Test Analyst position through an internal opportunity. Proficiencies encompass various platforms including Web and Mobile. Competencies in programming languages such as Java, JavaScript, React, PHP, and Clojure. Expertise extends to both manual and automated testing, with skills utilizing Cypress, Cucumber, Cypress Testing Library, BrowserStack, Postman, SQL and NoSQL databases, MongoDB, Selenium, JSON, GIT, and JMeter.

Test Analyst - QA
7/1/2022 - Present

Developed expertise in system quality management and refinement monitoring. Conducted and designed tests from the onset of new demands and improvements, prioritizing front-end test automation. Utilized Cypress technology for planning and creating tests at various levels. Excelled in software development using Agile methodologies. Demonstrated technical proficiency in Cypress, JavaScript, GraphQL, and MongoDB.
Test/QA Analyst
12/1/2019 - 1/1/2023

Developed and executed comprehensive test cases while creating detailed test plans and conducting scenario analysis. Managed and tracked bugs, identifying root causes and implementing solutions. Monitored and scaled crash data of released software versions to ensure stability and performance. Validated pre-production features and layouts to ensure product readiness. Created tests at various levels, ensuring thorough coverage and reliability. Utilized SQL for effective data manipulation to support testing processes. Monitored features throughout the development lifecycle, employing Agile methodologies such as Kanban and Scrum to enhance software development efficiency and collaboration.
Front-End Web Developer
9/1/2018 - 11/1/2019

Developed proficiency in HTML5, CSS3, JavaScript, and TypeScript, ensuring the creation of responsive and user-friendly web interfaces. Gained extensive experience with modern frontend frameworks such as React and Angular, contributing to the development of dynamic single-page applications (SPAs). Demonstrated skills in using state management libraries like Redux and NgRx for enhancing application performance and maintainability. Utilized Bootstrap and Material-UI for consistent and aesthetically pleasing UI design. Integrated APIs using AJAX and Fetch for seamless data retrieval and display. Ensured code quality and consistency through the use of Git for version control and Jenkins for continuous integration and deployment. Improved debugging and performance optimization techniques using Chrome DevTools and Lighthouse. Enhanced teamwork and project management capabilities through agile methodologies and tools such as JIRA and Confluence.
Front-End Web Developer
3/1/2018 - 9/1/2018

Developed proficiency in HTML, CSS, JavaScript, and React.js, managing and enhancing the user interface for web applications. Utilized Bootstrap for responsive design and ensured cross-browser compatibility. Integrated third-party APIs and optimized front-end performance through code-splitting and lazy loading techniques. Employed Git for version control and participated in code reviews to maintain high code quality. Delivered exceptional customer support by troubleshooting and resolving technical issues, maintaining documentation, and providing training sessions on new features and updates. Achieved a deep understanding of web accessibility standards and implemented best practices to ensure compliance. Demonstrated the ability to collaborate effectively with backend developers, project managers, and UX/UI designers to deliver seamless user experiences.