Open to opportunities

Jose Antonio Santacruz Monti

@joseantoniosantacruz

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Experienced Full Stack Engineer | Data analyst | Automation Engineer

Paraguay

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What I'm looking for

I seek engineering roles with ownership of platform architecture, complex integrations, scalable backend work, cross-functional collaboration, and opportunities to improve performance and business outcomes in a remote-friendly, growth-oriented company.

I am a Senior Full Stack Engineer with 10+ years building and scaling production SaaS platforms across fintech, proptech, and restaurant tech, specializing in Ruby on Rails, React, GraphQL, AWS, and Salesforce. I take ownership of backend architecture, performance optimization, and complex system integrations, turning product requirements into reliable, scalable solutions that drive measurable business outcomes.

My experience includes leading development of restaurant and crowdlending platforms, integrating Salesforce and third-party APIs, implementing robust test coverage with RSpec and Cypress, and delivering BI and ETL solutions using PostgreSQL, Oracle, and Tableau. I thrive in cross-functional teams, remote environments, and roles that require technical leadership and a focus on operational efficiency and customer satisfaction.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

BairesDev

May 2022 - Dec 2025 (3 years 7 months)

Spearheaded development and optimization of a scalable restaurant platform using Ruby on Rails, React, TypeScript and GraphQL, integrated Salesforce for data flow, and improved performance and user experience leading to measurable gains in operational efficiency and customer satisfaction.

Ruby on Rails React TypeScript GraphQL Heroku Salesforce RSpec Cypress AWS

Full Stack Developer

Glasir Labs S.A.

Jul 2020 - Dec 2022 (2 years 5 months)

Led development and infrastructure management of a crowdlending fintech platform using Ruby on Rails, Postgres and AWS, integrated order service APIs with restaurant systems via GraphQL and Salesforce, improving order processing and customer experience.

Ruby on Rails PostgreSQL AWS GraphQL Salesforce JavaScript HTML CSS Heroku Laravel

Automation Engineer

Flat.mx

Jul 2021 - Apr 2022 (9 months)

Optimized automations and customer communications using HubSpot, Zapier and Customer.io; developed website backends with Python/Django, Postgres and Docker to deliver scalable integrated solutions with improved performance.

Python Django PostgreSQL Docker HubSpot Zapier Customer.io AWS GitHub

Software Developer

TU Financiera S.A.E.C.A.

Apr 2011 - Nov 2019 (8 years 7 months)

Designed and maintained analytical data models, ETL pipelines and a centralized data warehouse for a home banking platform using PostgreSQL, Oracle and MySQL, and led BI initiatives with Oracle BI and Tableau to support financial decision-making and regulatory reporting.