Alexander Luo
Senior Software Engineer
Highest degree :
Bachelors
Field of study :
Computer Science
Location :
Louisville, CO
Citizenships :
American
Experience :
7 Year(s)
Countries :
United States
Gender :
Male
Sectors :
Digital ICT Expert | Data Scientist (AI/ML) | Digital Healthcare Technologist | Cloud & Data Center Specialist
Senior Software Engineer
Remote
Indeed
August 2022
-September 2025
•Implemented Job Preferences and Qualifications module in the job seeker profile using React, TypeScript, and Redux, Java, Node.js enabling users to specify roles, pay expectations, and relocation, which drove a 20% increase in personalized job views. •Enhanced web and mobile UX with responsive layouts (React Native, Tailwind CSS), improving usability audit scores by 40% and decreasing navigation issues by 25%. •Refactored the front-end architecture to support lazy loading and a scalable component hierarchy, reducing profile page load times by 18%. •Optimized job-matching logic by tuning Elasticsearch indices and ranking algorithms, which improved preference-based recommendation accuracy and boosted click-through rates by 18%. •Integrated user preference data into an AI-driven recommendation engine, increasing qualified job click-through rates by 19% through personalized job feeds. •Designed and deployed RESTful APIs using Java with Spring Boot to manage structured job preference data for over 100 million users. •Leveraged AWS services including ECS, RDS, and S3 to ensure secure and scalable microservice deployment. •Collaborated with search, recommendation, and machine learning teams to align data models and APIs, decreasing irrelevant job matches by 23% and improving user retention.
Senior Software Engineer
Longmont, CO
Seagate
June 2021
-July 2022
•Launched a reliability metrics dashboard using React, TypeScript, Angular, and Node.js to track HDD and SSD failure rates, cutting manual analysis time by 40%. •Built responsive visualizations using Chart.js and D3.js to present real-time test data, which improved diagnostic clarity and reduced manual review by 30%. •Developed modular React components like log viewers, summary tables, and alert panels to streamline feature reuse and cut development overhead by 40%. •Maintained high-performance GraphQL APIs in Node.js that supported over 20,000 weekly queries with sub-second response times. •Wrote and maintained front-end test coverage with Jest and React Testing Library to validate user inputs and form behavior across devices. •Automated CI/CD workflows with CircleCI and GitHub Actions, raising deployment frequency from weekly to daily.
Software Engineer
Longmont, CO
Seagate
May 2018
-June 2021
•Created a self-service helpdesk portal using React, TypeScript, Next.js, and MongoDB, reducing support call volume by 35% by enabling users to submit tickets and access resources independently. •Designed dynamic ticket submission flows with React and TypeScript using validation, conditional logic, and multi-step uploads, which reduced average submission time by 30%. •Implemented a real-time chat interface using React and Socket.IO, allowing users to engage with live support directly within the helpdesk platform.
Bachelor's Degree in Computer Science
Boulder
University of Colorado - Boulder
August 2014
-May 2018
react
React JS
react-native
JavaScript
TypeScript
Node.js
Java
Java, Spring Boot, Angular, React, AWS, Azure, Docker, Kubernetes, Terraform, Database, Security
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