Available to hire
I am a Senior Full Stack Java Developer with 8+ years of hands-on experience building scalable enterprise applications across financial services and insurance. I specialize in Core Java, Spring Boot, Microservices, React, and Next.js for server-side rendered web applications, with hands-on experience integrating third-party systems including payment gateways and financial APIs.
I am skilled in AI-enabled and agent-based systems including RAG pipelines, LLM integration (OpenAI, Claude, Gemini), vector databases, and multi-agent orchestration frameworks. I work with AWS and Azure, TypeScript, GraphQL, Python, and CI/CD pipelines, and I value clear communication with product owners, architects, and stakeholders to translate business requirements into robust technical solutions.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Work Experience
Sr. Java Developer at Nationwide Insurance
March 1, 2024 - PresentDesigned and implemented Java microservices using Spring Boot and core Spring modules for insurance claims processing workflows (CFE, COB), handling thousands of daily transactions. Led modernization efforts upgrading legacy Java 8 code to Java 17 LTS, resolving breaking API changes, updating Maven dependencies, and producing migration documentation and rollback plans. Built Next.js (SSR/SSG) and React front-end for customer-facing portals to improve SEO and performance. Implemented Apache Camel routes to integrate internal claims systems with third-party providers, applying content-based routing, aggregation, splitter, and dead-letter handling. Developed Quarkus-based cloud-native microservices for serverless functions on AWS to reduce memory footprint and cold starts. Architected Kafka-based event-driven pipelines with topic schemas and partition strategies for fault-tolerant real-time streaming. Built versioned RESTful APIs with OAuth2/JWT security; enforced SSL/TLS and mTLS for sec
Sr. Java Developer at TD Bank
October 1, 2022 - March 1, 2024Built and maintained Spring Boot microservices for high-availability banking platforms processing millions of daily transactions. Led Java 8 to Java 21 migration across multiple microservices—assessing impact, resolving deprecated APIs, updating dependencies, and validating behavior across environments. Developed React and Next.js front-end components integrated with Spring Boot APIs, implementing SSR for performance-critical dashboards with TypeScript. Used Apache Camel to integrate internal transaction systems with external payment networks and regulatory reporting services; implemented Camel-JMS, Camel-Kafka routes. Implemented Kafka pipelines for real-time event streaming, reducing end-to-end latency. Designed SQL schemas, stored procedures, and query optimization in MySQL and PostgreSQL. Built versioned RESTful APIs with OAuth2 and Spring Security; tested with Postman. Deployed on Azure and AWS; managed Maven builds and Git/GitHub workflows. Collaborated with Angular front-end t
Java Developer at Citi Bank
June 1, 2020 - September 1, 2022Designed AWS-native serverless microservices (Lambda, ECS, API Gateway, DynamoDB, RDS, SQS, SNS) ensuring 99.9% uptime for mission-critical financial apps. Integrated Apache Camel routes with third-party data providers and payment processors (Camel-REST, Camel-Kafka). Built secure, versioned RESTful APIs using Spring Boot with APIGEE Edge; implemented OAuth 2.0 authentication. Designed and optimized MySQL schemas on RDS; improved query performance by 35%. Implemented Kafka event-driven messaging and AWS SQS/JMS for asynchronous communication. Automated CI/CD with Jenkins, Docker, Kubernetes, and AWS CloudFormation, reducing deployment cycles. Configured Tomcat and JBoss in prod; resolved runtime issues under high load. Collaborated with Angular teams and conducted structured PR reviews. Achieved >30% improvement in batch processing throughput via Java 8/11 features. Mentored teammates on best practices and system design.
Java Developer at Industrial Alliance Financial Group
September 1, 2018 - May 1, 2020Developed enterprise Java backend applications using Spring Boot, Spring MVC, Hibernate ORM, and Spring AOP for insurance policy and financial data systems. Led Java upgrade from Java 8 to Java 11/17—assessed impacts, resolved deprecated APIs, updated dependencies, and validated backward compatibility. Remediated Struts 1.x to Spring MVC migrations while preserving business logic. Deployed on Oracle WebLogic Server; configured data sources and JMS queues. Integrated Oracle Service Bus (OSB) for service mediation and data routing. Built Jakarta EE components (Servlets, JSPs, JPA, EJBs) and Camel routes for real-time data transformation and routing in the DMIH. Designed REST and SOAP APIs; documented in Confluence and tested with Postman. Deployed serverless microservices on AWS (Lambda, S3, API Gateway, Elastic Beanstalk); automated pipelines, cutting releases by 50%. Managed Maven multi-module builds; deployed on Tomcat. Optimized Java 8 Streams for bulk insurance data processing. Al
Education
Bachelor of Technology at National Institute of Technology, Silchar
January 1, 2012 - January 1, 2016Qualifications
AWS Certified Developer – Associate
January 11, 2030 - April 2, 2026Microsoft Certified: Azure Developer Associate (AZ-204)
January 11, 2030 - April 2, 2026Oracle Certified Professional – Java SE 11 Developer
January 11, 2030 - April 2, 2026Apache Kafka Fundamentals Accreditation – Confluent
January 11, 2030 - April 2, 2026Docker Certified Associate
January 11, 2030 - April 2, 2026Certified Kubernetes Application Developer (CKAD)
January 11, 2030 - April 2, 2026Industry Experience
Financial Services, Software & Internet, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in Toronto today.