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Alejandro Múnez

Mobile & Web Developer

Developer based in San Francisco, USA. I specialize in UI design, web and mobile application development and maintenance.

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Work Experience

Zalmart

Lead Android Developer

May 2018 — Sept 2020
  • Implemented advanced memory management and code optimization techniques, resulting in a reduction in application load time by 40% and a decrease in crashes by 25%. This significantly improved user experience and increased user retention by 20%.
  • I led a team of developers in building and integrating new features using Jetpack Android components such as LiveData and ViewModel. This enabled us to build scalable and maintainable applications, reducing the crash rate by 20% and speeding up the time to delivery of new features by 15%.
  • Integrated Google Pay for in-app purchases, resulting in a 35% increase in mobile transaction revenue. Additionally, implemented Firebase Analytics to gain insights into user behavior, enabling data-driven optimizations and a 30% increase in user retention.

Bankit

Mobile Developer

Feb 2017 — May 2018
  • I designed and developed a mobile application using Flutter, allowing it to be deployed on both Android and iOS with a single codebase. This reduced development time by 50% and maintenance costs by 30%, facilitating a consistent user experience on both platforms.
  • I integrated biometric authentication and data encryption, significantly improving the security of user data. This implementation resulted in a 40% increase in user trust and a 25% reduction in unauthorized access attempts.

Driveer

Frontend Developer

Jun 2015 — Oct 2016

Developed and integrated a real-time vehicle tracking system using WebSockets, improving accuracy and data update in the application. This functionality increased user satisfaction by 30% and reduced customer service inquiries by 25%.

Featured Projects

Spotifu Music

A music streaming app that emulates Spotify's core features.

Spotifu Music

Shopp App

An e-commerce platform that replicates Shopify's key features.

Shopp App

ClonTagram

A social network that replicates the features of Instagram

ClonTagram

About Me

Hi, I’m Mengchao Ren, a Software Engineer and M.S. candidate in Software Engineering at Carnegie Mellon University Silicon Valley. I build reliable, scalable systems across the full stack, with hands-on experience in backend services, authentication flows, distributed systems, and data-driven applications. I’ve worked on production systems in both startup and enterprise environments, contributing to projects involving Django and Flask backends, real-time communication with Redis and WebSockets, cloud deployments on AWS, and modern frontend frameworks such as React and Vue. My work often focuses on improving system robustness, performance, and developer efficiency. Beyond engineering practice, I have a strong interest in applied machine learning and natural language processing. I’ve conducted research on large language models, analyzing their performance, efficiency, and limitations across real-world NLP tasks. I enjoy working at the intersection of engineering rigor and practical impact, turning complex problems into maintainable solutions.

Alejandro Múnez