Senior Software Engineer Hubstaff
Designed and maintained scalable web applications using Ruby on Rails, React, and Vue.js, boosting platform stability and user engagement by 35%. Built and optimized RESTful APIs with MySQL and PostgreSQL, reducing average API response time by 42% and supporting 1.2M+ monthly requests. Implemented background processing with Sidekiq, cutting asynchronous task latency by 60% and improving uptime to 99.98%. Enhanced search performance using Apache Solr, increasing query speed by 50% and improving data indexing accuracy by 20%. Developed automated test suites with RSpec, Jest, and Cypress, achieving 92%+ code coverage and reducing regression defects by 30%. Managed continuous delivery using GitHub Actions and CI/CD pipelines, reducing deployment time from 40 minutes to under 10 minutes. Supported Android and iOS app teams with Kotlin, Swift, and Objective-C integrations, improving cross-platform consistency by 25%. Optimized performance-critical code paths in C/C++, decreasing CPU usage by 15% under heavy workloads. Collaborated in bi-weekly Agile sprints, reviewing code and optimizing performance, improving sprint velocity by 20%.