Leon Marmol

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Full-Stack Software Developer- IA Engineer - Co-Funder

Mr Factura - Agent IA ARCAAFIP

Jul 2025 - Current (1 year 1 month)

• Architected and deployed an AI agent module using Gemini LLM for natural language processing of complex fiscal documentation. • Engineered a robust backend using Ruby on Rails 8.1, adhering to Clean Architecture and SOLID principles to ensure scalable AI integrations. • Implemented real-time AI-driven features and data streaming using Turbo Streams. • Developed real-time features using Turbo Streams. • Achieved 100% test coverage through TDD, ensuring the reliability of critical AI workflows.

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Full-Stack Software Developer

Keepcon - Scaled omnichannel messaging platform

Mar 2022 - Feb 2025 (3 years)

• Ruby on Rails 5.2, Rspec, Postgres, Cassandra, Elastic Search, Backbone, Redis, GraphQL, Java. • Methodologies and Tools: Solid, TDD, Scrum, New Relic, Asana, CI/CD, GitHub Actions. • Reduced API latency by 40 via PostgreSQL query tuning (Improved searching, composite indexes) • Led migration from Backbone.js to Vue.js + Hotwire Streams. • Implemented AI content moderation using Azure Cognitive Services

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Full-Stack Software Developer

Toptive - Software Factory

Sep 2019 - Feb 2022 (2 years 6 months)

• C# .NET, Angular, SQL, MongoDB, Angular JS, NodeJs, RxJS, React. • Asana, Scrum, Tdd, Solid • Modernized legacy .NET microservices. • Developed a platform using SurveyJs dynamic. • SQL Performance Optimization • Implemented the use of RxJS

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Full-Stack Software Developer

ASPURC - Medical coverage solutions

Aug 2013 - Sep 2019 (6 years 2 months)

• Rails 5.2, ElasticSearch, Delphi, Firebird -> PostgreSQL Migration, Devise, Rspec, Scrum. • Architected real-time analytics dashboard with Firebird • Spearheaded TDD adoption. • Optimized DB performance by 55% through query refactoring and indexing.

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