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Hi, I’m Ron Divina, a Java Full Stack Developer with 8 years of experience crafting scalable microservices, resilient backend systems, and intuitive front-end interfaces for enterprise retail, financial, and workflow-driven platforms. I specialize in delivering high-traffic, customer-facing features using Java, Spring Boot, React, Kafka, Redis, and cloud-native engineering patterns. I thrive on optimizing data performance, strengthening distributed architectures, and building secure, compliant API ecosystems across multi-service environments, while accelerating delivery through CI/CD automation, Kubernetes orchestration, and collaborative engineering practices.…Hi, I’m Ron Divina, a Java Full Stack Developer with 8 years of experience crafting scalable microservices, resilient backend systems, and intuitive front-end interfaces for enterprise retail, financial, and workflow-driven platforms. I specialize in delivering high-traffic, customer-facing features using Java, Spring Boot, React, Kafka, Redis, and cloud-native engineering patterns. I thrive on optimizing data performance, strengthening distributed architectures, and building secure, compliant API ecosystems across multi-service environments, while accelerating delivery through CI/CD automation, Kubernetes orchestration, and collaborative engineering practices.

Ron Divina

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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Hi, I’m Ron Divina, a Java Full Stack Developer with 8 years of experience crafting scalable microservices, resilient backend systems, and intuitive front-end interfaces for enterprise retail, financial, and workflow-driven platforms. I specialize in delivering high-traffic, customer-facing features using Java, Spring Boot, React, Kafka, Redis, and cloud-native engineering patterns. I thrive on optimizing data performance, strengthening distributed architectures, and building secure, compliant API ecosystems across multi-service environments, while accelerating delivery through CI/CD automation, Kubernetes orchestration, and collaborative engineering practices.…Hi, I’m Ron Divina, a Java Full Stack Developer with 8 years of experience crafting scalable microservices, resilient backend systems, and intuitive front-end interfaces for enterprise retail, financial, and workflow-driven platforms. I specialize in delivering high-traffic, customer-facing features using Java, Spring Boot, React, Kafka, Redis, and cloud-native engineering patterns. I thrive on optimizing data performance, strengthening distributed architectures, and building secure, compliant API ecosystems across multi-service environments, while accelerating delivery through CI/CD automation, Kubernetes orchestration, and collaborative engineering practices.

Available to hire

Hi, I’m Ron Divina, a Java Full Stack Developer with 8 years of experience crafting scalable microservices, resilient backend systems, and intuitive front-end interfaces for enterprise retail, financial, and workflow-driven platforms.

I specialize in delivering high-traffic, customer-facing features using Java, Spring Boot, React, Kafka, Redis, and cloud-native engineering patterns. I thrive on optimizing data performance, strengthening distributed architectures, and building secure, compliant API ecosystems across multi-service environments, while accelerating delivery through CI/CD automation, Kubernetes orchestration, and collaborative engineering practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

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Expert

Work Experience

Java Full Stack Developer at First National Bank

June 1, 2022 - Present

Designed and scaled distributed microservices using Java and Spring Boot, supporting 1M+ daily transactions and maintaining sub-200ms API response times during peak demand across cloud environments. Engineered Kafka-based asynchronous pipelines with Redis caching, increasing order-event throughput by 35% and maintaining consistent order lifecycle processing during high-traffic windows. Optimized PostgreSQL and DynamoDB queries, reducing catalog lookup latency by 40% and improving inventory accuracy across multi-channel fulfillment systems. Delivered reusable React UI components used across 10+ customer journeys, improving navigation clarity and session engagement across web and mobile devices. Automated CI/CD pipelines with Jenkins and GitHub Actions, reducing deployment effort by 50% and enabling multiple weekly releases across Kubernetes-based microservices. Integrated OAuth2 and JWT-based security controls, safeguarding 100+ internal APIs and ensuring compliant authentication across

Java Full Stack Developer at HCL America

July 1, 2019 - May 31, 2022

Constructed Spring Boot and Hibernate modules supporting high-volume financial transaction processing across global client environments. Developed Angular-based dashboards, improving operational data visibility for 5+ financial product teams and supporting complex approval, reconciliation, and reporting workflows. Integrated secure RESTful services with layered authentication to meet regulatory and compliance standards. Tuned Oracle and MySQL queries, improving reporting performance for enterprise datasets. Established CI/CD pipelines with GitLab and Maven, enabling repeatable builds and deployments across client environments. Created reusable utility frameworks and templates, reducing duplicate code by 20% and reinforcing architectural consistency across multi-module financial applications.

Java Developer at Persistent Systems

December 1, 2017 - June 30, 2019

Supported Spring MVC-based enterprise workflow applications with RESTful endpoints and structured resource modeling. Executed complex SQL queries, schema mods, and stored procedures in Oracle, preserving data integrity for analytical and operational systems. Analyzed Java runtime performance bottlenecks, optimizing caching strategies for higher throughput. Implemented Spring Security configurations enforcing role-based access controls. Participated in Agile ceremonies to support iterative delivery and maintainability. Documented system flows and integration mappings to enable long-term maintainability across releases.