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Hi, I’m Sagar Karakala, a Sr. 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 distributed architectures, with a strong focus on modernization, performance, and reliability. In my roles, I design resilient microservice ecosystems, lead modernization initiatives, and collaborate across product, security, and operations teams to ship secure, scalable solutions. I also enjoy building AI-assisted workflows and integrating advanced automation into enterprise backends to empower smarter, faster decision-making.…Hi, I’m Sagar Karakala, a Sr. 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 distributed architectures, with a strong focus on modernization, performance, and reliability. In my roles, I design resilient microservice ecosystems, lead modernization initiatives, and collaborate across product, security, and operations teams to ship secure, scalable solutions. I also enjoy building AI-assisted workflows and integrating advanced automation into enterprise backends to empower smarter, faster decision-making.

Sagar Karakala

Full Stack Developer, Web Developer, Back-End Developer, +4

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Hi, I’m Sagar Karakala, a Sr. 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 distributed architectures, with a strong focus on modernization, performance, and reliability. In my roles, I design resilient microservice ecosystems, lead modernization initiatives, and collaborate across product, security, and operations teams to ship secure, scalable solutions. I also enjoy building AI-assisted workflows and integrating advanced automation into enterprise backends to empower smarter, faster decision-making.…Hi, I’m Sagar Karakala, a Sr. 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 distributed architectures, with a strong focus on modernization, performance, and reliability. In my roles, I design resilient microservice ecosystems, lead modernization initiatives, and collaborate across product, security, and operations teams to ship secure, scalable solutions. I also enjoy building AI-assisted workflows and integrating advanced automation into enterprise backends to empower smarter, faster decision-making.

Available to hire

Hi, I’m Sagar Karakala, a Sr. 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 distributed architectures, with a strong focus on modernization, performance, and reliability.

In my roles, I design resilient microservice ecosystems, lead modernization initiatives, and collaborate across product, security, and operations teams to ship secure, scalable solutions. I also enjoy building AI-assisted workflows and integrating advanced automation into enterprise backends to empower smarter, faster decision-making.

Skills

Experience Level

Expert

Expert

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Expert

Expert

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Expert

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Expert

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Expert

Expert

Expert

Expert

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Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Javanese

Fluent

Work Experience

Sr. Full Stack Developer/ Lead Developer at DTCC (Depository Trust & Clearing Corporation)

December 1, 2024 - Present

Led 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.

Sr. Full Stack Developer/ Lead Developer at DTCC

December 1, 2024 - Present

Led 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. Full Stack Developer / Lead Developer at DTCC

December 1, 2024 - Present

Led 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 JPMorgan

May 1, 2023 - November 1, 2024

Led modernization of mission-critical banking applications by upgrading microservices from Java 8 to Java 11 and 17, resolving deprecated APIs and module-system conflicts. Refactored Spring Boot services (Spring MVC/Data/Security/Hibernate/JPA) for improved throughput and reduced memory footprint. Implemented event-driven architectures using Apache Kafka and IBM MQ to support high-volume, low-latency transactions. Built RESTful APIs and GraphQL endpoints; implemented API Gateway, Service Discovery, Circuit Breakers, and TLS 1.3. Containerized with Docker, orchestrated with Kubernetes (AKS/EKS), and automated CI/CD via Jenkins, GitHub Actions, and Azure DevOps. Automated infrastructure with Terraform; deployed cloud-native services on AWS and Azure. Implemented blue-green and canary deployments; integrated Contrast Security into CI/CD for runtime security. Built dashboards with React/Angular, and implemented centralized logging/observability with Splunk, Grafana, and ELK.

Lead Java Developer at JP Morgan

May 1, 2023 - November 30, 2024

Updated 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, 2023

Delivered 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 1, 2022

Designed 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. Integration Developer / Microservices Developer at Boston Scientific

August 1, 2021 - April 30, 2022

Designed 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, 2021

Developed 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, 2018

Developed 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.