Sri Sai Sumanth Duggina

Software Engineer at HSBC

Worked on the Payment and Trade Information Management System, integrating AI/ML models for automated anomaly detection in transaction patterns, reducing fraud risk by 15%. Led backend development using Spring Boot (Java 17), integrating SWIFT messaging for international trade and payment processing. Developed RESTful APIs and gRPC services handling trade data from over 15 sources, processing 200,000+ transactions daily. Optimized PostgreSQL and Aurora databases, improving retrieval speed by 40%, and leveraged AWS services for scalable deployments. Implemented security protocols including OAuth 2.0, JWT, RBAC, ensuring GDPR compliance. Developed frontend in React.js improving UX and user engagement by 15%. Utilized Kubernetes for container orchestration ensuring high availability. Established monitoring with Grafana and Prometheus for real-time performance tracking. Conducted API testing and documented APIs. Followed TDD achieving 95% unit test coverage. Automated CI/CD pipelines with

Associate Java Developer at LTIMINDTREE

Built a CRM system with microservices architecture using Spring Boot (Java 8), Docker, and Kubernetes, integrating 10+ third-party APIs. Developed event-driven features using Kafka and RabbitMQ for asynchronous service communication. Designed dynamic UIs in React.js with Redux, improving load time by 25% and integrating WebSocket for real-time notifications. Engineered PostgreSQL and MongoDB databases optimizing queries and added Redis caching to speed responses by 40%. Applied Terraform for infrastructure-as-code deployments on AWS managing EC2, S3, and IAM configurations. Enhanced security with OAuth 2.0, JWT, AES-256 encryption, and RBAC. Implemented monitoring with Datadog for performance analytics. Conducted API testing and documentation with Postman and Swagger. Implemented TDD with JUnit/Mockito. Automated CI/CD pipelines with GitLab CI and Maven ensuring environment consistency with Docker containers.

Software Engineer at HSBC

Software Engineer focusing on backend development for the Payment and Trade Information Management System in an Agile environment. Delivered over 20 features per sprint, aligning with business objectives. Built RESTful APIs with Spring Boot and OpenAPI/Swagger, integrating SWIFT messaging for international trade and payments and handling data from 50+ sources with 200,000 daily transactions. Implemented OAuth 2.0, JWT, and OWASP security practices; optimized PostgreSQL queries and enforced RBAC. Developed a responsive React.js frontend with a focus on UX, and conducted A/B testing that boosted engagement by 15%. Established Grafana dashboards for observability; designed CI/CD pipelines with Jenkins, GitLab CI, and Maven, and containerized with Docker. Adopted TDD with JUnit/Mockito achieving 98% test coverage and reducing manual intervention by 30%. Deployed on AWS (Elastic Beanstalk, EC2, S3, Lambda, API Gateway) with Aurora/RDS; enabled high availability and zero downtime. Extended a

Associate Java Developer at LTIMindtree

Developed a CRM system using a microservices architecture with Spring Boot and Docker in an Agile environment, delivering changes across 10+ third-party API integrations and implementing A/B testing that increased user engagement by 25%. Led frontend development with React.js and Redux, implementing WebSocket for real-time notifications and achieving 95% cross-browser compatibility. Built robust backend services with Spring Boot, Spring Data JPA, Hibernate; provided RESTful APIs and GraphQL for flexible querying, and used RabbitMQ for asynchronous communication between microservices. Strengthened security with OAuth 2.0, JWT, and AES-256 encryption with RBAC. Implemented Kubernetes deployments and Terraform for infrastructure as code, improving deployment parity and reducing operational overhead by 30%.

Software Engineer Intern at HomeInheritance

Developed a scalable CRM platform using React and TypeScript, supporting 20+ modules including Users, Transactions, Properties, Quotes, Contracts, and Inspections. Implemented role-based dashboards for Admin, Senior, Sales Director, and Sales Agents, reducing user navigation time by 40% and improving workflow clarity. Added features such as Stripe management, onboarding, and notifications, reducing admin operation time by 50%.

Full Stack Developer Intern at Performance.fyi

Developed a performance management platform using microservices architecture with Spring Boot and Docker, enabling modular deployment, service isolation, and enhanced scalability across distributed services. Designed secure authentication and authorization mechanisms using JWT and OAuth 2.0 to protect microservices and ensure safe access to payment data. Executed comprehensive unit tests using JUnit and Mockito, achieving 85%+ code coverage and ensuring maintainable, testable code.

Software Developer at HSBC

Engineered resilient microservices for a payment information platform using Spring Boot, ensuring high availability and reliable processing of 80,000+ transactions per day with 98.2% uptime. Integrated Apache Kafka for real-time event streaming across microservices, enhancing scalability and reducing message processing latency by 45%. Enhanced microservice resilience by implementing the Circuit Breaker pattern for fault isolation and the Saga pattern for managing distributed transactions, reducing system failures by 35%.