Hi, I'm
Mario Renteria.

MOBILE & WEB DEVELOPER

Software Developer with 8+ years of experience building mobile and web applications across banking, retail, and education. Specialized in .NET MAUI and React.js, with deep expertise in Azure DevOps, AWS, and database management. Delivering high-quality, user-focused features through rigorous testing, code reviews, and agile teamwork.

Mario Renteria headshot
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Portfolio

My Work

Axos Bank app screenshot
Mobile Banking

Axos Bank

Manage your finances with speed, security, and simplicity. View account balances, transfer money, pay bills, deposit checks, and track your financial goals — all from your phone.

.NET MAUI Xamarin C# Azure
Enterprise Logistics

PCD

Streamline daily operations for delivery and sales teams. Manage client visits, view delivery routes, register orders, track sales performance, and ensure accurate reporting — all in real time.

.NET MAUI Xamarin REST API Entity Framework
PCD app screenshot

Experience

Career

Feb 2023 – Present

Application Developer

Eviden

Responsibilities

  • Developed and maintained Xamarin.Forms & MAUI mobile banking apps.
  • Implemented end-to-end, user-centric features to enhance UX.
  • Created unit and integration tests for robust functionality.
  • Performed code reviews to uphold high software quality.

Key Accomplishments

  • Sustained full app-store availability of the banking app.
  • Shipped multiple features that boosted user engagement.
  • Minimized post-release bugs through rigorous testing.
Jun 2019 – Feb 2023

TI Engineer

LALA

Responsibilities

  • Architected and developed a retail-sales mobile application.
  • Led team best practices for efficient cross-platform dev.
  • Delivered features aligning with complex business rules.
  • Built data services with Entity Framework; improved API docs with Swagger.

Key Accomplishments

  • Drove pivotal retail-app architecture as technical lead.
  • Optimized sales management & reporting accuracy.
  • Enhanced DB performance through EF-based optimizations.
Aug 2018 – May 2019

Full-Stack Developer

NazasTech

Responsibilities

  • Built a React SPA for an education platform.
  • Managed CI/CD and deployment via AWS Elastic Beanstalk.
  • Implemented server-side logic with Adonis Framework.

Key Accomplishments

  • Launched SPA that improved user engagement substantially.
  • Ensured zero-downtime deployments on AWS.
  • Delivered full business-rule compliance on the backend.