Pavel Martynau
Full Stack Engineer
Talent
SeattleMember since July 23, 2026
JavaScriptJavaReact NativeReduxjQueryNode.jsBootstrapGitAxiosFirebaseMySQLGithubJenkinsSonarQubeMaterial UI
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JavaScriptJavaReact NativeReduxjQuery
About
Developed and maintained features for Costco's website using React framework, Node.js, MySQL, HTML, Material UI. Worked with product owners and UX designers to create user-friendly interfaces and implement new features. Improved website performance by optimizing code and reducing page load times.
Experience
Full Stack Engineer - Costco Wholesale Corporate Offices - Issaquah
(2022-12)
- Developed and maintained features for Costco's website using React framework, Node.js, MySQL, HTML, Material UI.
- Worked with product owners and UX designers to create user-friendly interfaces and implement new features.
- Improved website performance by optimizing code and reducing page load times.
- Collaborated with other engineers and QA team members to ensure high-quality code and smooth releases.
Software Developer - Costco Wholesale Corporate Offices - Issaquah
(2019-03 - 2022-12)
- Modernized Costco front page and address book by transitioning Costco website into React framework utilizing HTML, CSS, JavaScript, Axios, Bootstrap, Rest, JQuery, React-Redux and Git.
- Designed, developed, tested, and implemented a membership card feature parallel with CRM.
- Mitigated security vulnerabilities to the site by providing timely remediation in accordance with whitehat sentinel
- Worked closely with InfoSec team to design, implement, and deploy security vulnerability remediation to the website in return reducing risk to members and aligning with best security practices.
- Utilized Github, Jenkins, and SonarQube to push, deploy, and implement changes to Costco.com/ca.
- Mentored developers on implementing features and remediation for whitehat vulnerabilities.
- Reduced calls to business call centers by implementing code fixes and features in line to support business needs.
- Focused and increased performance of the website by collaborating with release managers.
- Collaborated with full stack engineers by doing code reviews, pair programming, knowledge shares.
Education
Bachelor's of Science - Information Technology ABET certified - University of Washington (2016-09 - 2018-06)
Skills
Full Stack Engineer
