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Arnold User

@arnolduser3

Senior Java engineer at Webb Fontaine modernizing its customs platform from Grails to Spring Boot and integrating auditable LLM document extraction.

Philippines

Message

What I'm looking for

I’m open to remote roles in the Philippines and internationally.

At Webb Fontaine, I drive architecture and design for the Grails-to-Spring Boot migration of the Valuation and Classification System, a customs platform deployed on Kubernetes. I also integrate an LLM-based document-extraction service while keeping model output separate from accepted values so decisions remain auditable.

At Lingaro, I was technical lead of the offshore Manila team for an enterprise data-collection and collaboration application, combining technical direction with hands-on development. I also interviewed, hired and onboarded engineers, and introduced centralized monitoring and log-search tooling.

At Arch Global Services, I developed an integration platform using Apache Camel and Red Hat Fuse, and improved the performance of a key high-throughput application by more than 100%. At Verifone, I worked on payment gateway systems and designed an EMV testing tool that cut device-testing time by roughly 70%.

Earlier, I developed fraud-monitoring and detection systems at IBM Solutions Delivery and built an automated policy-servicing system for AIG Russia. I’m an Oracle Certified Professional in Java SE 11, and I’ve worked across payments, fintech, insurance and trade facilitation.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Webb Fontaine

Apr 2022 - Present (4 years 6 months)

Senior technical specialist on the Valuation and Classification System, covering architecture, design, development, testing, and debugging of new services and major enhancements deployed on Kubernetes. Drives migration of legacy Grails applications to Spring Boot and integrates LLM-based document-extraction services.

Java Groovy Grails Spring Boot Kafka Kafka Streams Kafka Connect API Kubernetes LLM Integrations Oracle PostgreSQL

Lead Consultant

Lingaro

Oct 2019 - Apr 2022 (2 years 6 months)

Technical lead of the offshore Manila team for an enterprise data-collection and collaboration web application, owning technical direction alongside hands-on senior development. Conducted technical interviews, hired and onboarded new engineers, and introduced centralized monitoring and log search tooling.

Java Spring Framework Groovy Grails JavaScript Smart Client Oracle Azure Jenkins Git Jira Confluence

Senior Java Developer

Arch Global Services

Nov 2018 - Sep 2019 (10 months)

Developed a high-performance integration platform implementing enterprise integration patterns with Apache Camel and Red Hat Fuse. Optimized high-throughput applications, improving the performance of a key application by more than 100%.

Java Spring Framework Spring Boot Apache Camel Red Hat Fuse OpenShift 3scale AppDynamics

Senior Developer

Verifone

Nov 2016 - Nov 2018 (2 years)

Senior developer on the Transaction Services Gateway for Australia & New Zealand, contributing at the architecture level to design, governance, and process. Built and maintained merchant/terminal onboarding, transaction routing and switching systems, and a server payment engine bridging mobile devices and the gateway.

Java Spring Framework Spring Boot RabbitMQ MongoDB PostgreSQL Docker Jenkins Swagger OpenAPI Unix Git

Application Developer

IBM Solutions Delivery

Jan 2015 - Nov 2016 (1 year 10 months)

Implemented and maintained fraud monitoring and detection systems, including a Big Data / ETL pipeline for early detection of data fraud and abuse. Developed electronic-invoice and SMS notification applications and supported server migration of all handled applications.

Java Unix Shell Big Data Hive IBM MQ Oracle Ant SVN

Software Engineering Specialist

Verifone

Jul 2013 - Jan 2015 (1 year 6 months)

Led development of most internal tools for the Manila North America team and produced UML documentation. Designed an EMV transaction testing tool that cut device-testing time by roughly 70% and automated pin-pad regression testing.

Java Junit JDBC JAXB Maven Git SVN Apache Tomcat

Java Analyst Programmer

P3ople4u

Nov 2012 - Jun 2013 (7 months)

Developed an end-to-end automated policy-servicing system for AIG Russia and web services for cross-system data transfer.

Java Web Services

Software Engineer

UST Global

Mar 2012 - Oct 2012 (7 months)

Completed the ALPHA graduate program with intensive core Java and Java EE training.

Java Java EE

Education

Degrees, certifications, and relevant coursework

Bulacan State University

Bachelor of Science in Mathematics, Computer Science

2008 - 2012

Activities and societies: Best Thesis; 2nd Place, Programmed Systems Competition

Earned a Bachelor of Science in Mathematics with a major in Computer Science. Awarded Best Thesis and 2nd Place in the Programmed Systems Competition.