Mohammed Sameer

Sr. Full Stack Java Developer at JPMorgan Chase & Co

Architected scalable microservices on AWS (EKS, EC2, S3, RDS) and Azure using IaC (Terraform, Pulumi, CloudFormation), supporting dynamic, immutable infra. Developed robust backend services using Java (8–17), Spring Boot, Kafka, RabbitMQ, gRPC, and WebFlux with security via OAuth2 and JWT. Optimized distributed data processing jobs using Apache Spark and AWS Glue Data Catalog, enabling schema discovery and integration with Athena and Redshift Spectrum. Built real-time data-driven web apps using React.js, Angular, Redux, TypeScript, WebSockets, and GraphQL/REST APIs, improving performance and user engagement. Enabled event-driven architectures with Kafka Streams, Apache Flink, and Amazon Kinesis for real-time analytics. Streamlined CI/CD pipelines with Jenkins, GitLab CI, ArgoCD, and AWS CodePipeline, supporting zero-downtime deployments. Improved observability with ELK, Prometheus, Grafana, and AWS X-Ray. Built low-latency trading systems using Java and gRPC.

Software Backend Developer / Java | Cloud-Native at Abbott

Developed scalable, secure backend microservices using Java, Spring Boot, and Spring Cloud to support healthcare data processing compliant with HIPAA. Created reusable Java-based ETL libraries for AWS Glue and collaborated with cross-functional teams for medical device data applications. Implemented microservices integration with HL7 and FHIR standards for EHR interoperability. Built Kotlin and Golang microservices deployed on Docker and Kubernetes (GKE) with Helm. Automated data pipelines using Spark and AWS Glue with data quality checks. Enhanced DevOps pipelines with Jenkins and AWS CodePipeline. Developed frontend interfaces using ReactJS, Angular, TypeScript, and Redux integrated with backend REST APIs.

Java / J2EE Developer at Honeywell

Designed modular enterprise Java applications using MVC architecture, Spring Framework, and J2EE components (JSP, Servlets, Struts). Developed frontend UI libraries with React, Angular, and Tailwind CSS ensuring consistent UX. Built Vue.js applications with OAuth2 and JWT-based security. Collaborated in Agile QA testing cycles and practiced TDD for Java code. Implemented microservices with Spring Boot, Hibernate, and Spring Cloud. Integrated messaging systems like Kafka and RabbitMQ applying CQRS and Event-Driven patterns. Managed AWS infrastructure and deployed applications using Kubernetes and Docker. Developed dynamic web interfaces and real-time interactions using AJAX and WebSockets.

Java Developer at Deltek

Designed and developed Single Page Applications using AngularJS and ReactJS with RESTful and SOAP Web Services. Leveraged Spring Boot and AngularJS for modularity and maintainability. Implemented Node.js REST APIs for middleware integration with MySQL databases. Integrated Golang services into Kubernetes platforms with Helm, monitoring performance using Prometheus and Grafana. Supported J2EE applications with MVC and DAO patterns and transitioned applications to Microservices architecture. Developed database solutions using Oracle and MySQL with Hibernate ORM.

Sr. Full Stack Java Developer at JPMorgan Chase & Co

Architected and developed scalable microservices on AWS and Azure using technologies such as Java, Spring Boot, Kafka, RabbitMQ, gRPC, and WebFlux. Implemented secure OAuth2 and JWT-based authentication and built event-driven architectures with Saga and Event Sourcing patterns. Improved real-time data processing pipelines using Apache Spark and integrated AWS Glue to harmonize data workflows. Developed interactive web applications using React.js and Angular with SSR, PWA, and GraphQL enhancing user experience. Led deployment and infrastructure automation via Terraform, Helm, and GitOps, achieving zero-downtime releases. Enhanced observability with ELK, Prometheus, and distributed tracing systems. Built low-latency trading systems and ensured healthcare interoperability by mapping HL7 to FHIR data standards.

Software Backend Developer / Java | Cloud-Native at Abbott

Developed scalable backend microservices in Java and Kotlin to support HIPAA-compliant healthcare data processing. Built reusable AWS Glue ETL libraries and collaborated with cross-functional teams delivering medical device connectivity features. Managed performance and scalability of SaaS applications on cloud platforms and maintained relational and NoSQL databases including MySQL and PostgreSQL. Integrated HL7 and FHIR messaging standards and developed high-performance Golang microservices. Automated DevOps pipelines using Jenkins and AWS CodePipeline and designed real-time clinical data APIs. Emphasized compliance with FDA regulations and usage of Liquibase/Flyway for database migrations.

Java / J2EE Developer at Honeywell

Designed modular enterprise applications using MVC and J2EE technologies including Spring Framework. Developed frontend design systems with React and Angular ensuring security with Spring Security and OAuth2. Supported QA through TDD and Agile methodologies and managed backend business logic with Core Java and Spring Boot microservices. Integrated messaging systems such as Kafka and RabbitMQ, applying CQRS and event-driven architecture for scalable solutions. Managed AWS infrastructure, container deployments, and integrated IBM BPM with Docker and Kubernetes. Developed dynamic web interfaces and conducted pair programming to ensure code quality.

Java Developer at Deltek

Designed and implemented Single Page Applications with AngularJS and ReactJS integrating RESTful and SOAP web services. Developed Node.js middleware APIs, managed MySQL databases with stored procedures, and integrated Golang services within Kubernetes clusters. Employed Spring Boot with Hibernate ORM, transaction management, and microservices architecture following MVC and DAO patterns. Utilized Oracle and MySQL for backend storage and maintained J2EE applications. Enhanced application modularity and performance through adherence to design patterns and practices.

Sr. Full Stack Java Developer at Abbott

Developed scalable, secure backend microservices using Java 8–17, Spring Boot, and Spring Cloud to support healthcare data processing and HIPAA compliance. Created reusable Java-based ETL libraries for AWS Glue to standardize transformation logic across pipelines. Collaborated with data scientists and frontend engineers to deliver features for medical device connectivity. Monitored and optimized SaaS performance on cloud platforms and documented design system libraries using Bit.dev and NX Monorepos to promote modular architecture. Worked with MySQL/PostgreSQL databases and integrated HL7 (v2/v3) messaging for interoperability with external EHR platforms. Built and deployed microservices using Kotlin, Spring Boot, Docker, and Kubernetes (GKE) with CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI) and event-driven patterns (Kafka, RabbitMQ, AWS SQS). Implemented data pipelines and reporting with Spark, Glue, and Glue jobs, and integrated RESTful and GraphQL APIs for clinical resour

Sr. Software Backend Developer / Java | Cloud-Native at JPMorgan Chase & Co

Architected scalable microservices on AWS (EKS, EC2, S3, RDS) and Azure using IaC (Terraform, Pulumi, CloudFormation). Developed backend services with Java 8–17, Spring Boot, Kafka, RabbitMQ, gRPC, and WebFlux, with OAuth2/JWT and event-driven patterns (Saga, Event Sourcing). Implemented AI/ML model monitoring with Grafana, Prometheus, and Datadog. Built distributed data processing jobs with Apache Spark in Java and used AWS Glue Data Catalog for schema discovery. Delivered real-time web apps with React/Angular/Redux/TypeScript, SSR (Next.js), GraphQL/REST, and WebSockets. Implemented EMR Spark pipelines and HL7 to FHIR interoperability. Streamlined CI/CD with Jenkins, GitLab CI, ArgoCD, and AWS CodePipeline, using Helm/Kustomize and GitOps. Employed Kafka Streams, Apache Flink, Kinesis, and Apache Pulsar for CEP and real-time analytics. Implemented serverless workflows with AWS Lambda, SQS, SNS, and Step Functions, and enhanced observability with ELK, Prometheus, Grafana, CloudWatch

Java / J2EE Developer at Honeywell

Designed and implemented modular enterprise applications using MVC architecture (J2EE, JSP, Servlets, Struts) and Spring Framework with DI, AOP, and Transaction Management. Built scalable UI and design systems with React, Angular, and Tailwind CSS; secured applications with Spring Security, OAuth2, and JWT. Practiced TDD with JUnit/Mockito and contributed to QA through integration tests. Implemented backend services with Core Java, Spring Boot, Spring Data JPA, Spring Cloud, and Spring Batch for scalable data processing. Led full SDLC in an Agile environment and collaborated across teams. Deployed and managed applications using Docker and Kubernetes for container orchestration.

Java Developer at Deltek

Developed Single Page Applications (SPA) using AngularJS and ReactJS with RESTful and SOAP APIs. Used Spring Boot with AngularJS for rapid development (DI, modularity). Leveraged cloud-native data engineering tools (AWS S3, Redshift, Athena, Azure Data Factory) for data lake/warehouse solutions. Implemented Node.js RESTful APIs for middleware integration with MySQL. Integrated Golang services into Kubernetes (Helm) and monitored performance with Prometheus/Grafana. Built back-end services with Spring Boot, Hibernate, JPA; used J2EE, Oracle/MySQL; employed TDD in pair programming. Implemented messaging with Kafka, RabbitMQ, ActiveMQ and CQRS/Event-Driven patterns. Created JasperReports for reporting and enabled real-time data flows and HL7 data handling for healthcare interoperability.

Sr. Full Stack Java Developer at Abbott

Developed scalable, secure backend microservices using Java 8–17, Spring Boot, and Spring Cloud to support healthcare data processing and HIPAA compliance. Created reusable ETL libraries for AWS Glue to standardize transformations across pipelines. Collaborated with data scientists and frontend engineers to deliver features for medical device connectivity. Optimized SaaS applications on cloud platforms, and contributed to design-system libraries with Bit.dev and NX Monorepos to promote modular architecture. Worked with MySQL/PostgreSQL; implemented HL7 v2/v3 and FHIR data handling for interoperability. Built and deployed microservices using Kotlin, Spring Boot, Docker, Kubernetes (GKE), and Helm. Implemented event-driven architecture using Kafka, RabbitMQ, AWS SQS, and Spring Cloud Stream. Implemented CI/CD pipelines using Jenkins, GitLab CI, GitHub Actions; deployed on AWS and Google Cloud with Kubernetes. Integrated RESTful and gRPC APIs, GraphQL, and WebSocket for real-time update

Sr. Software Backend Developer / Java | Cloud-Native at JPMorgan Chase & Co

Architected scalable microservices on AWS (EKS, EC2, S3, RDS) and Azure using IaC (Terraform, CloudFormation, Pulumi). Implemented robust backend services with Java 8–17, Spring Boot, Kafka, RabbitMQ, gRPC, and WebFlux, with OAuth2/JWT security and event-driven patterns (Saga, Event Sourcing). Led pair programming to improve code quality. Implemented AI/ML model monitoring with Grafana, Prometheus, and Datadog. Developed Spark-based distributed data processing jobs in Java. Used AWS Glue Data Catalog for schema discovery and integrated with Athena/Redshift. Built real-time web apps using React/Angular/Redux/TypeScript/WebSockets; SSR (Next.js), GraphQL/REST. Created scalable EMR/Spark data pipelines; implemented CDC/ETL across multi-region databases and data synchronization. Enabled HL7 to FHIR interoperability pipelines. Designed relational DB schemas (MySQL/PostgreSQL/Oracle). Implemented CI/CD with Jenkins, GitLab CI, ArgoCD, and AWS CodePipeline; GitOps with Helm/Kustomize. Desig

Java / J2EE Developer at Honeywell

Designed modular enterprise web applications using MVC architectures, including J2EE, JSP/Servlets, Struts, and Spring; applied core design patterns such as Dependency Injection, AOP, and Transaction Management. Built secure, modern UI with React/Angular, HTML5, CSS3, Bootstrap; secured endpoints with Spring Security (OAuth2/JWT), CSRF, and CORS. Practiced TDD with JUnit/Mockito; collaborated in Agile environments. Developed backend with Spring Boot, Spring Data JPA, Spring Cloud, and Spring Batch for scalable data processing. Also contributed to PHP components and integrated REST/SOAP services. Managed AWS infrastructure and containerization with Docker/Kubernetes; participated in DevOps workflows and Git workflows.