Available to hire
Hi, I’m Sagar Karakala, a Senior Java Full Stack & Cloud Engineer with 10+ years of experience delivering scalable, cloud-native enterprise platforms across banking, financial services, lending, insurance, and healthcare. I specialize in Java 11–17, Spring Boot, microservices, and modernization efforts focused on performance and reliability. I enjoy designing resilient architectures, optimizing systems, and guiding teams toward secure, scalable solutions.
I lead cross-functional engineering efforts, architect cloud-native services on AWS and GCP, integrate AI-assisted workflows, and champion DevSecOps practices. My passion is turning complex requirements into robust implementations, mentoring developers, and delivering high-impact software with quality and speed.
Experience Level
Language
English
Fluent
Work Experience
Sr. Full Stack Developer / Lead Developer at DTCC
December 1, 2024 - PresentLed cross-functional teams across Java, Angular, and DevOps to deliver high-quality enterprise applications. Architected scalable Java microservices using Spring Boot, Kafka, API Gateway, and event-driven patterns; migrated SOAP to REST; implemented DevSecOps pipelines with SonarQube and Veracode; built IaC using Terraform and CloudFormation on AWS and GCP; containerized with Docker and Kubernetes (EKS); optimized deployments for scalability and reliability; steered architecture sessions and defined end-to-end solutions.
Lead Java Developer at JP Morgan
May 1, 2023 - November 30, 2024Updated build configurations for Java 11, resolved dependency conflicts, and migrated legacy Java 8 microservices to Java 11. Implemented event-driven architectures with Apache Kafka and IBM MQ, built API Gateway for centralized routing and authentication, and orchestrated blue-green deployments on AWS ECS and Azure AKS. Automated provisioning with Terraform; improved startup times, memory usage, and TLS 1.3 security; collaborated with DevOps to update Docker images and pipelines; designed scalable, fault-tolerant integrations and modernized core banking workloads.
Java Software Engineer at Health Edge
May 1, 2022 - April 30, 2023Delivered features in an Agile team; developed and consumed SOAP web services, defined WSDL contracts, and managed XML serialization. Implemented EIPs via Apache Camel, migrated packaging to OSGi/Karaf, and built REST APIs and React SPAs. Diagnosed Linux-based issues via logs and thread/heap dumps; configured Apache HTTP Server; designed data pipelines for internal and vendor integrations; wrote unit and integration tests.
Sr. Integration Developer / Microservices Developer at Boston Scientific
August 1, 2021 - April 30, 2022Designed and implemented Enterprise Application Integration (EAI) and SOA solutions; built JMS/IBM MQ producers and consumers; developed SOAP services and ESB flows (IBM IIB/WebSphere). Migrated legacy integration platforms to modern routes; implemented content-based routing, canonical data models, and XSLT transformations; built Spring Boot microservices deployed to AWS/Azure; integrated with Kafka and REST APIs; created robust CI/CD pipelines with Jenkins, Maven, and Artifactory.
Java Web Developer at Novartis India
September 1, 2018 - January 31, 2021Developed JAX-RS based APIs; implemented responsive UI with Bootstrap and AngularJS; enforced multi-user access controls; designed asynchronous inter-site communication using Java 8 with CompletableFuture; used ActiveMQ for messaging; secured inter-system communications with TLS; built JMS consumers for queue processing; integrated SOAP/REST services and ESB components; worked on Oracle and PostgreSQL integration.
Java Software Engineer at ADP
January 1, 2016 - August 31, 2018Developed high-performance modules (C++), improved memory management and performance; diagnosed memory leaks; redesigned algorithms; built automated test harnesses for volume and latency testing; contributed to derivatives trading system features; built Python automation scripts for GUI testing; developed cross-platform UI using Qt; leveraged STL for reusable components.
Sr. Full Stack Developer/ Lead Developer at DTCC
December 1, 2024 - PresentLed cross-functional teams across Java, Angular, and DevOps to deliver high-quality enterprise applications. Architected DevSecOps pipelines to automate security compliance and code quality. Engineered scalable Java microservices using Spring Boot and distributed patterns; containerized deployments with Docker and Kubernetes; exposed AI microservices through API Gateway. Defined API specifications with Swagger/OpenAPI and implemented IaC with Terraform and CloudFormation. Designed cloud-native architectures on AWS and Azure, improving scalability, reliability, and cost efficiency. Modernized legacy systems by converting SOAP to REST, improving performance and usability.
Sr. Integration Developer/Microservices developer at Boston Scientific
August 1, 2021 - April 1, 2022Designed and implemented Enterprise Application Integration (EAI) and SOA solutions; developed JMS-based messaging and IBM MQ flows; migrated legacy platforms to modern EIB and introduced Kafka-based MOM. Built Spring Boot microservices deployed on AWS/Azure, with canonical data models and API Gateway patterns. Implemented CI/CD pipelines with Jenkins and Artifactory to automate builds and deployments. Carried out RESTful API integration with React front-end; established secure, scalable messaging and data exchange.
Sr. Full Stack Developer/ Lead Developer at DTCC (Depository Trust & Clearing Corporation)
December 1, 2024 - PresentLed cross-functional teams to deliver Java Spring Boot microservices; architected event-driven integrations with Kafka and IBM MQ; modernized SOAP to REST and added GraphQL endpoints; designed cloud-native architectures on AWS and GCP with Istio service mesh; integrated AI-assisted workflows with Python-based LLM services; containerized deployments with Docker and Kubernetes; built CI/CD pipelines with Jenkins and GitHub Actions; implemented Terraform/CloudFormation for IaC; built modern UIs with React/Next.js/Angular; secured with OAuth2, JWT, and SSO; optimized data flows with Snowflake pipelines.
Education
Master of Science in Computer Science at Stevens Institute of Technology
January 11, 2030 - May 11, 2026Bachelor of Technology in Computer Science at North East Frontier Technical University (NEFTU)
January 11, 2030 - May 11, 2026Master of Science in Computer Science at Stevens Institute of Technology
January 11, 2030 - May 11, 2026Bachelor of Technology in Computer Science at North East Frontier Technical University (NEFTU), India
January 11, 2030 - May 11, 2026Master of Science in Computer Science at Stevens Institute of Technology
January 11, 2030 - June 8, 2026Bachelor of Technology in Computer Science at North East Frontier Technical University (NEFTU), INDIA
January 11, 2030 - June 8, 2026Qualifications
Industry Experience
Financial Services, Healthcare, Software & Internet, Professional Services, Education
Experience Level
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