Sergio Antonio Urrutia Portillo

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Full Stack Sr Software Developer

Onset Financial

Mar 2025 - Current (1 year 4 months)

As a Full Stack Sr Software Developer, I developed and implemented a microservices solution using .NET 8, Wolverine, and CQRS, ensuring scalability and optimized read/write operations across domains, deployed on Azure with CI/CD via Azure DevOps. I designed database structures and call flow logic for dynamic call lists, outcome tracking, and performance metrics, leveraging PostgreSQL for efficient reporting. Additionally, I developed event-driven systems for call lifecycle tracking using Zoom event handlers, enabling real-time logging and visibility into agent activities. I built modular front-end components with React, Ant Design, and microfrontend architecture to deliver a secure, user-centric solution with JWT-based authentication. My ex

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Sr Software Developer

Stampin' Up

Feb 2023 - Feb 2025 (2 years 1 month)

As a Sr Software Developer, I was responsible for the addition and improvement of functionalities to facilitate the ordering process for customers worldwide. I led the implementation of various payment methods, including a tokenizer service and PayPal, which significantly improved user trust and enhanced their experience across all payment processes on the site. My role also involved optimizing finance and accountability processes, as well as preparing and organizing application capabilities for a business expansion into three EU countries. Additionally, I contributed to the enhancement of the main e-commerce application, which was built using Vue.js and TypeScript, leveraging my skills in software development. I utilized Azure Service Bus

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Sr Software Developer

Stampin' Up

Aug 2021 - Feb 2023 (1 year 7 months)

Addition and improvement of functionalities to facilitate the process of ordering for the customers worldwide. Led the implementation of various payment methods (tokenizer service and PayPal), improving user trust and enhancing their experience across all payment processes on the site. Optimization of finance and accountability processes. Preparing and organizing application capabilities for a business expansion of 3 EU countries.Stack: T-SQL, Azure Cosmos DB, Azure Service Bus, ASP.NET, Web Forms, ASP MVC, Web API, .NET 8, Vue.js.

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Sr Backend Developer

XUP Payments KeyBank

Feb 2021 - Aug 2021 (7 months)

Authentication services shared through different applications by a combination of in-house managed SSO and JWT for the improvement of the merchant experience through all the applications. Improvement of pdf parser service that allows to compare fees that the company provides. Development over all the merchant onboarding experience through the company's platform.Stack: T-SQL, .NET 5, XAML.

Full Stack Senior Software Developer

Ria Money Transfer

Dec 2019 - Feb 2021 (1 year 3 months)

Software Developer

Saongroup

Apr 2017 - Dec 2019 (2 years 9 months)

As a Software Developer, I was responsible for designing, developing, and maintaining software applications, ensuring high performance and responsiveness to requests from the front-end. I utilized my programming skills to implement robust solutions and enhance user experience. Additionally, I contributed to a distributed Scala application that processed data from Cassandra, enabling efficient canonical keyword search functionality. I also created microservices using .NET Core and C#, which enhanced the application's modularity and scalability. Furthermore, I played a key role in developing a job seeker web application built with React and Next.js, where I implemented essential functionalities for job search. To improve reporting capabilitie

Software Designer and Developer

avianca

Nov 2013 - Apr 2017 (3 years 6 months)

Sergio Antonio Urrutia Portillo

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