Senior Java Microservices & Kafka Engineer

DANIEL CORONA TRENADO

linkedin.com/in/daniel-corona-trenado-913a5a39

PROFESSIONAL SUMMARY

Expert Senior Software Engineer with over 20 years of experience driving large-scale digital transformations across Financial, Banking, and Telecommunications sectors. Specialized in building robust Microservices architectures using Java/Spring Boot and implementing high-performance Event-Driven systems with Kafka. Proven track record of optimizing application performance, leading complex migrations, and mentoring cross-functional teams in Agile environments. Dedicated to engineering excellence through TDD/BDD and Cloud Native deployments. TECHNICAL SKILLS

Backend: Java (J2EE, 8, 17+), Spring Boot 3, Spring Data JPA, Spring Cloud, Hibernate, Microservices, RESTful APIs, SOAP, Kafka

Frontend: JavaScript, Angular 2+, HTML5, CSS3, AJAX, Bootstrap, JSP Cloud & DevOps: AWS (Certified Developer), Pivotal Cloud Foundry (PCF), Docker, CI/CD (Jenkins), Git, Gradle, Maven, Splunk, Grafana

Database & Testing: Oracle (SQL, PL/SQL), MongoDB, JUnit, Mockito, Cucumber, Selenium, TDD/BDD Methodologies: Agile/Scrum, OOAD, Microservices Architecture, Design Patterns (MVC, Factory, Singleton) PROFESSIONAL EXPERIENCE

Wells Fargo Jul 2023 – Jan 2025

Senior Software Engineer Plano, Texas (Hybrid)

Engineered high-availability microservices using Spring Boot 3 and Spring Cloud (Config Server, Circuit Breaker) for core banking operations, ensuring 99.9% system uptime. Implemented an Event-Driven Architecture utilizing Apache Kafka to streamline asynchronous data processing and inter-service communication.

Developed and optimized Spring Boot Batch applications for automated invoice generation, processing high- volume datasets with improved execution speed.

Enhanced frontend responsiveness by building UI components with the internal Propellant framework, improving user engagement metrics.

Established a rigorous testing culture using TDD/BDD with JUnit, Mockito, and Cucumber, reducing production defects by 30%.

Utilized Splunk and Grafana for real-time monitoring and log analysis, accelerating root-cause identification for production incidents.

NICE Ltd Feb 2019 – Jun 2023

Senior Software Engineer Richardson, Texas

Led the design and deployment of scalable microservices on Pivotal Cloud Foundry (PCF), optimizing resource utilization and deployment frequency.

Resolved critical production bottlenecks by analyzing system metrics and logs, implementing code fixes that stabilized the platform during peak loads.

Optimized Oracle 11G database performance by refactoring complex SQL queries and strategically implementing indexes to reduce query latency.

Automated repetitive server maintenance and log rotation tasks through Unix/Linux shell scripting, saving significantly on weekly manual overhead.

Infosys Mar 2017 – Jan 2019

•

•

•

•

•

•

•

•

•

•

Ciudad de México, México +52-61-198*-*** ******.******.*******@*******.*** Lead Java Developer Richardson, Texas

Spearheaded the development of a Spring Batch project to automate customer letter generation and delivery, streamlining communication workflows.

Architecture and developed RESTful APIs using Spring Boot, integrating legacy backend systems with modern web applications.

Mentored junior developers on Java Design Patterns (MVC, Factory, DTO) and best practices for writing maintainable, clean code.

Orchestrated Scrum ceremonies (Daily Standups, Refinement) as a technical lead, ensuring on-time delivery of sprint objectives.

Tata Consultancy Services (TCS) Jun 2014 – Oct 2016 Senior Java Consultant Mexico City, Mexico

Collaborated directly with clients to translate complex business requirements into high-level technical documentation and UML diagrams.

Developed the persistence layer leveraging Spring JDBC and secured applications using Spring Security protocols.

Created automated test suites using TestNG and Selenium, significantly increasing regression test coverage. EDUCATION & CERTIFICATIONS

UAM Universidad Autónoma Metropolitana 1999 – 2003 Bachelor of Science in Computer Science Mexico City, Mexico Certifications: AWS Certified Developer Oracle Certified Professional: Java SE 6 Programmer

•

•

•

•

•

•

•

Contact this candidate