**Alexander Simmons**
Senior Frontend / Mobile Engineer
Odessa, TX | +1 (419) 549 5014 | alexandersimmons824@gmail.com

### **Summary**
11+ years of experience in Senior Frontend and Mobile Engineering across Healthcare, Fintech, and Media sectors. Specialized in developing mobile/web applications tailored to diverse client needs. Strong communication and analytical skills with expertise in translating business requirements into scalable software solutions. Proficient in React, React Native, Flutter, Angular, and Vue.js.

### **Experience**

#### **Senior Frontend/Mobile Engineer** | Amazing Dental, Michigan | Sep 2021 – Dec 2023
- Developed a **Hospital Management System** using **React/Typescript** (web) and **React Native** (mobile).
- Built real-time analytics dashboards with **WebSocket, SignalR, D3.js**, improving data-driven decisions by **15%**.
- Enhanced UI component management by **26%** using **Storybook** and reusable React Native components.
- Expanded global reach by **29%** via **i18n** integration for multilingual support.
- Optimized navigation with **React Router** (web) and **React Navigation** (mobile), reducing load time by **25%**.
- Automated testing with **Cypress & Jest**, improving software quality and deployment speed.
- Managed app distribution via **Google Play Console** and **TestFlight** for iOS.
- Integrated **REST APIs** for seamless data handling and deployed apps to **App Store & Play Store**.
- Used **Jira** for Agile project management and **Slack/MS Teams** for team collaboration.

#### **Senior Frontend Developer** | IWP Capital, Texas | Aug 2019 – Jul 2021
- Built a **Flutter-based fintech app** for ethical investors, supporting **iOS & Android**.
- Developed an investment advisor web app using **Angular.js** with real-time functionality.
- Integrated **Highcharts (web) & Syncfusion (mobile)** for real-time stock visualization.
- Created portfolio management tools with **SQLite & Service Workers** for offline caching.
- Designed admin portals using **Next.js** and company websites with **Vue.js**.
- Ensured app security and performance via **Flutter’s testing library**.

#### **Senior Frontend/Mobile Developer** | NBC Universal, New York | May 2015 – Jul 2019
- Developed an **OTT cloud video platform** (VOD & live streaming), increasing engagement by **17%**.
- Migrated legacy **AngularJS** app to **React**, improving performance.
- Built native apps with **Swift (iOS) & Kotlin (Android)** to expand mobile accessibility.
- Achieved **80% test coverage** using **XCTest, Espresso, Jest, Mocha**.
- Established **GitHub workflows** for version control and collaboration.

#### **Full Stack Developer** | Diamondback Energy, Texas | Sep 2013 – Feb 2015
- Backend development with **Django & Spring**, frontend with **AngularJS, HTML/CSS/JS**.
- Tested APIs using **Postman** and followed **TDD** practices.
- Managed SDLC in **Agile** environments with **Jira**.

### **Skills & Abilities**
- **Frontend:** HTML5/CSS3, JavaScript/TypeScript, React, Angular, Vue, Next.js
- **Mobile:** React Native, Flutter, Kotlin, Swift
- **Backend:** Node.js, Express, Django, Spring Boot
- **Testing:** Jest, Cypress, Selenium, Appium
- **Tools:** Git, Jira, AWS (S3/EC2), Postman

### **Education**
**Bachelor of Computer Science** | University of Texas Permian Basin | Apr 2009 – Jun 2012

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