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**Joshua King**
**Senior Software Engineer**
+1 213 262 0096
j.c.king87129@gmail.com
Senior Full Stack Engineer with expertise in frontend and backend development. Collaborative team player with 8+ years of experience, delivering scalable solutions and optimizing performance.
### **Skills**
- **Frontend:** React, React Native, Redux, Angular, Vue, Next.js
- **Backend:** Node.js, Express, Nest.js, Python, Django, Java, Spring Boot
- **Languages:** JavaScript, TypeScript, HTML5, CSS3, SCSS
- **Databases:** SQL, MySQL, PostgreSQL, MongoDB
- **APIs:** REST, GraphQL, Apollo
- **Cloud & DevOps:** AWS, CI/CD, Jenkins
- **Testing:** Jest, Mocha, Cypress
- **UI/UX:** Bootstrap, MUI, TailwindCSS
### **Experience**
**Senior Software Engineer** | **Toptal** | San Francisco, CA | *May 2020 – Present*
- Built a React/Node.js e-learning SaaS on AWS, generating $382K revenue in first year.
- Improved web app performance by 10% and migrated MongoDB to PostgreSQL (30% speed boost).
- Implemented real-time chat and leaderboard, increasing user engagement by 13%.
- Mentored junior devs, reducing code review time by 30% and boosting on-time delivery by 15%.
- Automated CI/CD pipelines (Jenkins) for linting, testing, and deployment.
- Refactored legacy APIs with SOLID principles, improving efficiency by 30%.
**Full-Stack Engineer** | **DockYard Inc** | Boston, MA | *March 2017 – May 2020*
- Optimized loading times by 20% using React-Query and lazy loading.
- Developed React/Redux dashboard from Figma, enhancing UX.
- Refactored a transportation system with Nest.js, GraphQL, and AWS.
- Automated CI/CD for 5+ repos, streamlining testing (Jest/Cypress).
**Front-End Engineer** | **Altas** | Dallas, TX | *November 2015 – March 2017*
- Migrated a dating site (50K+ users) to React/MUI, boosting engagement by 20%.
- Modernized legacy JS to TypeScript, improving code quality by 40%.
- Built a responsive home management platform with 2s load times (30% faster).
- Created 60+ reusable Storybook components for faster development.
### **Education**
**The Hong Kong University of Science and Technology**
*Bachelor of Science (B.S.) in Computer Science* | *2011–2015*
*(Formatted for clarity and conciseness while retaining key achievements.)*
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