Jaury Abreu

Urb. Maximo Gomez · Santo Domingo, DO 11205 · (829) 248-4858 · jauryabreu@gmail.com

With +8 years in software development, I use agile methods to improve teamwork, development, and project tracking. Always open to learning, I adapt to new technologies to boost performance. With an analytical mindset and a focus on improvement, I deliver practical and effective solutions that optimize processes and add value.

Experience

Sr. Software Developer

Business Computer POS (Freelancer)
  • Designed and developed 5+ modular POS systems using .NET Core and SQL Server.
  • Built 20+ RESTful APIs integrated with Stripe and other payment gateways, reducing transaction time by 35%.
  • Automated deployments via Azure DevOps CI/CD pipelines, speeding up delivery by 40%.
  • Applied xUnit testing, DDD, and Clean Architecture, increasing code coverage to 80%.
  • Used Telerik/DevExpress and SQL Server for high-volume transaction systems (5,000+ daily).
Technologies:

C# (.NET Core), SQL Server, NoSQL, REST APIs, Azure DevOps, Git, xUnit, Microservices, Telerik/DevExpress, CI/CD, Azure

Feb 2022 - Present

Software Engineer

Justo (Contract)
  • Migrated 8 legacy services to Spring Boot microservices using DDD and modular design.
  • Integrated APIs with Kafka, AWS SNS/SQS, and Webhooks, supporting over 90K monthly transactions.
  • Deployed 3+ AWS Lambda functions, reducing infrastructure costs by 25%.
  • Achieved 99.9% system availability with proper monitoring and failover strategies.
  • Documented all critical flows and Faustian architecture decisions across multi-team initiatives.
Technologies:

Java, Spring Boot, Python, Amazon DynamoDB, Node.js, TypeScript, JavaScript, REST APIs, TDD, DDD, CI/CD, Git, Docker, Microservices, Jenkins

Mar 2024 - May 2025

Software Engineer

Tiendamia (Contract)
  • Built and maintained backend services in Node.js and PHP across a Magento-based e-commerce platform.
  • Developed and integrated 15+ REST APIs for payments, order processing, and customer flows.
  • Refactored features into microservices using TypeScript, improving deployment and scalability.
  • Optimized MySQL queries, reducing response time by 40%.
  • Managed Git/GitHub workflows in distributed environments hosted on AWS.
Technologies:

Node.js, React, TypeScript, PHP, MySql, Magento, CI/CD, Git, Docker, Microservices, AWS

Jul 2021 - Feb 2024

Team Leader & Software Developer

Agilisa Technologies
  • Led a 5-person development team and delivered 15+ B2B software projects on time.
  • Designed and implemented systems in .NET Framework and SQL Server, processing 20K+ operations daily.
  • Improved system performance by 40% using message queues and in-memory caching.
  • Increased test coverage to 85% using NUnit and integrated Dockerized services.
  • Oversaw version control, code reviews, and sprint planning using Git and Jira.
Technologies:

C# (.Net Framework & ASP.NET MVC), SQL Server, React, Docker, NUnit, Hangfire, Docker

Jun 2017 - Jul 2021

Junior Software Developer

Dextra
  • Customized 5+ Dynamics NAV ERP modules used by 5 business units
  • Created over 20 dynamic reports using Report Builder and Power BI
  • Integrated 5 SOAP APIs for financial data synchronization and invoicing
  • Improved SQL performance by 30% via query optimization
  • Contributed to version upgrades affecting 300+ active users
Technologies:

C/AL, SQL Server, Report Builder, Microsoft Excel, SOAP Web Services, Microsoft Power BI

Jan 2016 - May 2017

Junior Software Developer

Asociación Popular de Ahorros y Préstamos (Internship)
  • Automated internal financial processes, reducing manual effort by 20%
  • Generated 10+ financial and operational reports with Reporting Services and Excel
  • Improved SQL query execution time, reducing error rates by 40%
  • Handled 45+ user requests and system adaptations in 9 months
  • Supported IT team initiatives affecting 250+ employees
Technologies:

SQL Server, Report Builder (Reporting Services), Microsoft Excel

Feb 2015 - Dec 2015

Education

Universidad Domínico Americano

Master's in Data Science and Big Data
Waiting for quorum

GPA: N/A

May 2025 - Current

Universidad Domínico Americano

Software Engineering

GPA: 3.62

Sep 2018 - Aug 2024

Instituto Tecnológico de Las Américas

Software Development Technologist

GPA: 3.71

Sep 2012 - Dec 2014

Skills

Programming Languages & Tools
Workflow
  • Migrating & Integrating Applications
  • Payment System Connections
  • Designing System Architecture
  • Developing for Different Platforms
  • Improving Performance & Speed
  • Code Review & Quality Checks
  • Working in Agile Teams
  • Writing Documentation & Supporting Users
  • Deploying & Monitoring Systems
  • Collaborating with Stakeholders

Interests

In my free time, I like to stay active by going to the gym regularly. I also play paintball at least once a month because it gives me energy and excitement. I really enjoy sports, especially basketball and baseball.

I also love traveling and discovering new places. Right now, I’m visiting different parts of the country, and in the future, I hope to travel to other countries to learn about different cultures.

One of my short-term plans is to visit Denver, Colorado, with my wife. We want to go skiing in Aspen in January 2026 and enjoy the beautiful mountains.

Awards & Certifications

  • Querying Microsoft SQL Server® 2014 Course 20461D
  • Administering Microsoft SQL Server® 2014 Databases Course 20462D
  • Developing Microsoft SQL Server® 2014 Databases Course 20464D
  • Analyzing Data with Power BI (Desktop & Web) Course 20778-C
  • Designing Business Intelligence Solutions with Microsoft SQL Server® 2014 Course 20467-D