Billy Arredondo

Full Stack Developer

Acklen Avenue

Jan 2023 - Current (3 years 4 months)

• The project focused on enhancing product features and integrating their functionalities through internal and external services. My contributions included developing new features, resolving bugs within the production environment, and implementing Azure Functions to streamline service integration and automate processes. • I have implemented strategies to improve application performance, such as utilizing browser memory for data handling, leveraging local storage for non-sensitive, recurring information, and creating relevant indexes on table columns based on application design criteria and common usage patterns. • Technologies: Net Framework, Net Core, Entity Framework, React, Webforms, Swagger, Azure DevOps, Azure Functions, JavaScript,

Full Stack Developer

Globant

Jan 2021 - Jan 2023 (2 years 1 month)

• The project focused on resolving issues and enhancing key functions of a major personnel management application. I utilized Azure Functions for event-driven processing, which streamlined certain automated tasks within the application. • I handled change requests, provided database synchronization solutions, and proposed optimal solutions to minimize technical debt. I implemented a controlled, confgurable recursive solution for hierarchical personnel management, which improved performance by more than 90%. • Technologies: Net Core, WPF, React.js, Express.js, SQL Server, Swagger, Azure DevOps, Azure Functions, Node, NestJS, AWS Lambda, AWS S3, RabbitMQ, TypeScript, and JavaScript.

.NET Technical Lead

Page Group

Jan 2019 - Jan 2021 (2 years 1 month)

• Led the maintenance of core banking software for a major national bank, ensuring strict compliance with government regulatory requirements. • Directed the synchronization of legacy systems with Salesforce CRM API, improving data accuracy and operational effciency. • Supervised the enhancement of transaction registration forms using React.js, optimizing validation processes and achieving a 50% reduction in form response time by leveraging the framework's reactive capabilities. • To improve system scalability and reliability, I have championed adopting modern technologies, including .NET Core, React.js, and AWS S3. • Technologies: .NET Framework, .NET Core, WCF, WPF, React.js, SQL Server, MongoDB, AWS S3.

M

Full Stack Developer

MANPOWER EXPERIS

Jan 2018 - Jan 2019 (1 year 1 month)

• In my role, I was entrusted with maintaining and enhancing the systems for a prominent fast food representative in Peru, affliated with renowned brands like KFC, Starbucks, Pizza Hut, Burger King, and Chili's., WCF, ASP.Net Web API. • I have developed robust solutions using Windows Services and Web Services to implement innovative proposals from our functional analysts. A signifcant achievement was proposing and implementing frontend code improvements by integrating React.js for form validations. This enhancement dramatically reduced validation time by 97.6%, from 30 seconds to 0.8 seconds. • Technologies: ASP.Net MVC, ASP.Net Webforms, WCF, WPF, ASP.Net Web API, Node, React, and JavaScript.

C

Full Stack Developer

Chain Services TI

Jan 2016 - Jan 2018 (2 years 1 month)

• I developed maintenance solutions for .NET applications and SQL Server databases, implementing integrations between legacy systems using Windows Services, Web Services, and REST APIs. I optimized database resource consumption by a factor of 60, reducing processing time from 5 minutes to less than 5 seconds. • Technologies: ASP.Net MVC, ASP.Net Webforms, Visual Basic 6.0, WCF and ASP.Net Web API.

M

Full Stack Developer

MDP Consulting

Jan 2015 - Jan 2016 (1 year 1 month)

• The goal of the project was to stabilize the administrative management system and produce a weekly technical report on software vulnerabilities. • Many times, database query performance was optimized by more than 90%. • Technologies: Visual Basic 6.0, Visual Basic .NET, and SQL Server.

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