I’m Gain Joseph, a certified Java and AWS software developer with over 18 years of experience designing, building, and deploying scalable web-based applications using Java, Spring Boot, and cloud platforms. My work spans microservices, REST APIs, front-end UI, and DevOps practices to deliver reliable, cloud-native solutions. I enjoy collaborating with cross-functional teams to translate business needs into robust technical architectures. I’m passionate about mentoring peers, improving code quality with automated tests, and keeping pace with evolving technologies like AWS, Kubernetes, and modern Java ecosystems.

Gain Joseph

I’m Gain Joseph, a certified Java and AWS software developer with over 18 years of experience designing, building, and deploying scalable web-based applications using Java, Spring Boot, and cloud platforms. My work spans microservices, REST APIs, front-end UI, and DevOps practices to deliver reliable, cloud-native solutions. I enjoy collaborating with cross-functional teams to translate business needs into robust technical architectures. I’m passionate about mentoring peers, improving code quality with automated tests, and keeping pace with evolving technologies like AWS, Kubernetes, and modern Java ecosystems.

Available to hire

I’m Gain Joseph, a certified Java and AWS software developer with over 18 years of experience designing, building, and deploying scalable web-based applications using Java, Spring Boot, and cloud platforms. My work spans microservices, REST APIs, front-end UI, and DevOps practices to deliver reliable, cloud-native solutions.

I enjoy collaborating with cross-functional teams to translate business needs into robust technical architectures. I’m passionate about mentoring peers, improving code quality with automated tests, and keeping pace with evolving technologies like AWS, Kubernetes, and modern Java ecosystems.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert

Language

English
Advanced

Work Experience

Sr. Java Developer at US Bank
March 1, 2023 - Present
Lead a team in migrating legacy Java Spring applications to an AWS cloud environment, leveraging EKS, EventBridge, and Spring Boot microservices. Built RESTful services for TMIS; integrated with CGI Trade360 for clients; involved in scheduling, billing, and data integration.
Sr. Java Developer at The Judge Group @ Slalom Consulting
February 1, 2023 - Present
Drove advertising services platform development using Docker, Kafka, and Spring Boot REST APIs; integrated AWS S3 and EFS for file storage; implemented messaging via AWS MQ and EventBridge; designed event-driven microservices.
Team Lead / Sr. Java Developer at Wells Fargo
July 1, 2020 - November 1, 2021
Led backend development for a financial crimes platform; designed REST/SOAP services; migrated monoliths to microservices on OpenShift; implemented Angular UI and CI/CD pipelines with Jenkins.
Team Lead / Sr. Java Developer at United Health Care (UHC)
July 1, 2019 - July 1, 2020
DCE drug cost estimator; integrated with third-party data suppliers; developed and tested batch processes; evaluated streaming approaches with Apache Flink and Kafka; front-end with Angular.
Sr. Java Developer at BNP Paribas
September 1, 2018 - July 1, 2019
Built backend microservices for Global Prime Services; data loading and batch processing; implemented Spring Security; front-end integration using Angular; participated in Agile development.
Sr. Java Developer at TMG Health (The Montana Health and Economic Livelihood Partnership) / HELP Act
December 1, 2013 - August 1, 2017
Developed 300+ SOA REST services and data integration; used Apache CXF/JAXB; implemented caching with GemFire; designed real-time access patterns and migration from legacy systems.
Sr. Java Developer at American College of Surgeons (ACS)
June 1, 2009 - November 1, 2013
Migrated .NET ASP sites to Java/JSP; built SOA Web Services; secured login; migrated to JBoss/WebSphere; refactored Struts/Hibernate components.
Sr. Java Developer at ARC Worldwide
April 1, 2008 - June 1, 2009
Developed promotional sites for Philip Morris; used Struts, Spring, Hibernate; integrated with Flex3 frontend; built secure web services; migrated to Java/J2EE stack.
Java Developer at JP Morgan
May 1, 1999 - February 1, 2002
GTA/GTA decision support systems; built server-side components using EJB/J2EE, CORBA; JSP/Servlets; Oracle stored procedures; migrated legacy components; built data layer.
Java Developer at MINDEF Singapore
January 1, 1998 - April 1, 1999
Service Benefit Payment Systems; 3-tier architecture; Swing front-end; RMI middle tier; Oracle backend; security via encryption; Java/JDK 1.x stack.
Java Developer at Strong Financial Corporation
May 1, 1999 - May 1, 2003
SWIFT messaging ISO 15022; formatted securities messages; developed Java classes; Oracle stored procedures; J2EE stack.

Education

Master of Computer Applications at Bharathiar University, India
January 11, 2030 - January 1, 1996
Bachelor of Science (Physics) at Mahatma Gandhi University, Kerala, Kottayam, India
January 11, 2030 - January 1, 1992

Qualifications

Oracle Certified Professional, Java SE 8 Programmer
July 11, 2020 - February 13, 2026
AWS Certified Cloud Practitioner
September 12, 2021 - February 13, 2026
Oracle Certified Associate, Java SE 8 Programmer
November 24, 2018 - February 13, 2026
IBM AI Developer
January 11, 2030 - February 13, 2026

Industry Experience

Software & Internet, Financial Services, Healthcare, Professional Services, Government