ncalderon
Senior Java Engineer
Senior Java Software Engineer with over 10 years of experience specializing in high-performance backend systems using Java and Kotlin. Over 4 years of experience working on Blockchain protocols (Bitcoin and Rootstock Ethereum-based blockchain) and Distributed Systems. Holder of a Master’s degree from Universidad de Sevilla in Computation, Logic, and Artificial Intelligence. Extensive experience in architecting critical microservices for web applications in the telecommunications industry.
Experience: 11 years
Yearly salary: $70,000
Hourly rate: $40
Nationality: 🇩🇴 Dominican Republic
Residency: 🇩🇴 Dominican Republic
Experience
Senior Software Engineer & Team Lead
Claro Dominicana 2018 - 2021
Architected and deployed the ”MiClaroPersona” consumer portal, managing microservices for millions of users. Led a team in designing high-availability services for payments, subscriptions, and real-time order tracking using Java and Kotlin. Reduced system latency through database optimization and microservice refactoring. Mentored junior engineers and established code quality standards through peer reviews and TDD practices.
Senior Software Engineer
NewTech 2015 - 2017
Developed a high-throughput Java API for the CFC Android application, synchronizing large-scale app data. Built custom visualization and reporting modules that improved operational visibility for facility managers. Resolved critical performance bottlenecks in legacy synchronization logic, increasing data reliability.
Senior Software Engineer
Industrias Nigua 2014 - 2015
Digitized manufacturing workflows by integrating Android-based order capture with Epicor ERP. Implemented a digital labeling system that eliminated production bottlenecks in the chain manufacturing line. Engineered OLAP cubes to provide real-time BI insights to executive leadership.
Junior Software Developer
Mstn Media sa 2012 - 2014
- I participated in designs and implementation of web applications using C# in the Health Insurance and Telecommunications industries as third party contractors. - Participates in the areas of architecture, design, implementation, and testing.
Skills
bitcoin
ethereum
kotlin
solidity
java
english