Fernando Contreras
Monterrey, Nuevo León, Mexico
Summary
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SeniorFernando Contreras is a software engineer and founding AI architect with 11 years of experience building backend-first, revenue-focused systems—primarily in Ruby on Rails and PostgreSQL—for fintech, logistics, and education. He moves beyond feature work to architect platforms that run businesses autonomously, from a 0-to-1 logistics engine at Litebox Parcel to Studio Link, a production SaaS handling payments, biometric attendance, and a WhatsApp-first contact agent. His pragmatic focus is connecting LLMs and automation tools like n8n to real operations so AI reduces manual work and plugs revenue leakage rather than being a marketing pitch. He prioritizes diagnosing the real problem before coding, building high-reliability systems that scale without accruing technical debt, and shipping what measurably moves the needle. Based in Monterrey, Mexico, he routinely hands off day-to-day ops to concentrate on architecture and product-market fit, helping founders go from idea to customer-ready MVPs. An uncommon thread across his career is treating technology explicitly as a revenue asset—designing systems whose operational outcomes are as important as their code.
12 years of coding experience
Stackoverflow
147reputation
41kreached
2answers
0questions
Github Skills (100)
pug10
javascript9
markdown9
dsa-algorithm9
html9
angular-app9
timer9
css9
parsing9
react9
jekyll9
yeoman9
yeoman-generator9
full-stack9
mongoid9
Programming languages (6)
Github contributions (5)
fercreek/personal-blog
Mar 2019 - Feb 2025
Contributions:37 pushes, 1 branch, 1 issue in 6 years
fercreek/rails_api_base_example
Jul 2020 - Aug 2021
Contributions:1 PR, 1 push, 1 branch in 1 year 1 month
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