Carlos Aguilar

Carlos Aguilar

Principal Engineer & Architect

I don't just build apps; I engineer stability.

Before founding Tecmanic, I spent 5 years at Capital One as a Staff Engineer and Payments Architect. I led initiatives that generated over $10M in annual revenue and saved the company millions by optimizing high-volume API infrastructure.

My background isn't typical agency work. I've handled critical data migrations for the Library of Congress, scaled consumer apps to 50M+ downloads, and engineered 99.9% stability for high-growth startups. I bring that same level of rigor to every client I work with.

Career Highlights

  • Capital One Financial

    Staff Engineer & Payments Architect (2018 - 2023)

    Architected the mobile payments flow for millions of users. Solved critical production incidents, reduced API costs by millions via caching strategies, and led the migration from Objective-C to Swift.

  • Sandboxx

    Principal iOS Engineer (2016 - 2018)

    improved app performance by 300% (3x) and achieved 99.9% crash-free stability. Integrated Apple Pay which drove a 7% immediate revenue lift.

  • Library of Congress

    Senior Consultant

    Executed critical Django data migrations for the "Constitution Annotated" project. Delivered complex backend updates with zero downtime.

Engineering Stack

Swift / SwiftUI Kotlin Flutter Python (Django/FastAPI) Ruby on Rails PHP (Laravel) AWS & Linux Nginx Redis PostgreSQL