Matías Micheltorena

Senior Software Engineer @ Global Payments

March 2023 - Current

Led the implementation of new features and integrations with external systems, while maintaining and optimizing the core ecommerce application to ensure performance, scalability, and reliability.

Served as the team's Security Champion, promoting secure development practices and ensuring compliance with relevant security standards and guidelines throughout the software development lifecycle.

Currently working on an internal CRM platform responsible for managing and delivering over 200,000 customer notifications each month.

Key Responsibilities and Achivements:

• ↳ Implement a DevSecOps approach across the product development lifecycle, integrating security practices into every stage.
• ↳ Increased deployment velocity by 2x for new features and bug fixes.
• ↳ Manage and support services in testing and production environments within AWS infrastructure.
• ↳ Ensure compliance with security standards throughout development and delivery processes.
• ↳ Maintain and enhance CI/CD workflows using GitHub Actions.
• ↳ Research and evaluate emerging technologies, including AI applications such as RAG and NLP for e-commerce initiatives.
• ↳ Identify areas for improvement and optimization within the development team, solving critical points and challenges within the development process.
• ↳ Collaborate with cross-functional teams to gather requirements, define solutions, and deliver new features and integrations.

Senior Software Developer & Security Champion @ Evo Payments México

August 2022 - March 2023

Led the design and development of new functionality for a high-traffic ecommerce platform, focusing on scalable, maintainable, and secure software solutions using PHP and Node.js.

Key Responsibilities and Achivements:

• ↳ Led the adoption and implementation of Domain-Driven Design (DDD) and Hexagonal Architecture, enhancing system modularity and maintainability.
• ↳ Acted as Security Champion, proactively identifying and addressing infrastructure and code vulnerabilities to ensure platform resilience, solving over 900+ security vulnerabilities.
• ↳ Designed and implemented a public API in compliance with OAuth2 and OpenAPI standards, improving integration capabilities with external partners.
• ↳ Mentored and coached peers in software design and architecture, fostering a collaborative and growth-oriented engineering culture.
• ↳ Supported the Project Manager in onboarding new team members, streamlining the integration process and improving team productivity.

Senior Backend Developer @ Wobiz

June 2020 - August 2022

Designed and developed new features for the Wobiz ecommerce platform, with a focus on modernizing the backend through the adoption of Domain-Driven Design (DDD) and Hexagonal Architecture. Contributed to the progressive migration of legacy systems while ensuring code quality and scalability.

Key Responsibilities and Achivements:

• ↳ Applied Domain-Driven Design principles and Hexagonal Architecture to migrate the legacy system to a modern architecture.
• ↳ Implemented core design principles and best practices, including SOLID, KISS, DRY, and YAGNI principles.
• ↳ Developed a standards-compliant public API using OAuth2 for authentication and OpenAPI for documentation.
• ↳ Provided technical mentorship and coaching for 5 team members within a cross-functional development team.
• ↳ Supported the Project Manager in onboarding new team members, ensuring smooth integration into workflows and codebases.

Software Development @ Freelance

August 2020 - January 2025

Worked on the migration of a legacy web application to Laravel, using Laravel Nova as the UI administration panel and Docker for containerization. Developed a custom internal API to support a companion Android application built with Flutter.

Key Responsibilities and Achivements:

• ↳ Designed and developed a cross-platform Android application using Flutter.
• ↳ Set up CI/CD pipelines with GitHub Actions to automate build and deployment processes.
• ↳ Deployed and maintained a containerized production environment on a Debian-based VPS using Docker.
• ↳ Integrated observability tools for real-time application monitoring and error tracking.

Remote Full Stack Developer @ Molotec

June 2014 - March 2020

Designed and developed web systems and mobile applications for clients in the tourism, healthcare and marketing sectors, using agile methodologies. Delivered scalable, user-friendly solutions through the implementation of Single Page Applications (SPAs) with Vue.js and microservices using Laravel. Worked on the migration of hotel and flight metasearch engines to AWS Lambda-based serverless architecture for improved performance and scalability.

Remote Full Stack Developer @ We Tech S.A

August 2016 - December 2018

Developed web-based management dashboards for the Argentine government (Ministerio de Modernización / Jefatura de Gabinete), using Symfony, jQuery, and Bootstrap. Projects included integration with various public and internal APIs to support decision-making and administrative processes.

Software Developer @ Media 5 S.R.L

September 2014 - July 2016

Worked on the analysis, development, and implementation of a Digital Content Management System (Media Asset Management – MAM) for television and media channels. The solution was developed using the FireMonkey framework in Delphi XE5, targeting multiple platforms.

Technical Support @ Media 5 S.R.L

August 2012 - September 2014

Responsible for the assembly, configuration, and installation of high-availability video servers for television broadcasters. Provided Level 2 technical support to customers and end users.

Web Developer @ Freelance

January 2008 - August 2012

Dynamic and static websites design and development in PHP, jQuery and JavaScript.