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Nagasowmya Valmiki

@nagasowmyavalmiki

Message

I build secure, scalable Java microservices for high-traffic ticketing and banking platforms.

United Kingdom

Message

What I'm looking for

I'm looking to build secure, scalable backend platforms where I can apply Java, Spring Boot, cloud-native microservices, event-driven architecture, and AI-assisted development to solve high-impact problems.

I've built Java and Spring Boot microservices for TAF Mobile GmbH's public transport ticketing platforms, supporting millions of passenger interactions and 1M+ annual users. My work spans ticket booking, fare calculation, reimbursements, reporting, CICO functionality, and secure payment validation.

Previously, I delivered Digital Banking services for Bank of America and ERP modules across manufacturing, finance, and capital management. I use event-driven architecture, AWS, Docker, Kubernetes, PostgreSQL, Kafka, RabbitMQ, and Spring AI to improve reliability, performance, security, and operational efficiency.

Experience

Work history, roles, and key accomplishments

Java Backend Developer

TAF Mobile GmbH

Sep 2021 - Aug 2025 (3 years 11 months)

Designed and implemented microservices-based backend architecture for a high-traffic public transport ticketing platform using Java and Spring Boot. Developed secure REST APIs, integrated RabbitMQ for asynchronous messaging, and deployed services on AWS ECS/EKS with Docker and Kubernetes.