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Sowmya User

@sowmyauser5

Senior Backend Developer at CapitalOne Bank, where I develop Java payment services and modernize systems from Java 8 to Java 17.

United States

Message

At CapitalOne Bank, I develop Java 17 ledger and sub-ledger systems and secure RESTful and reactive services for customer identification and payments. I work on ACH, card, wire, and remittance processing, including settlement and reconciliation workflows.

At Deutsche Bank, I developed payment microservices and ledger systems using Spring Boot, Kafka, and Java 17. I also contributed to modernizing legacy applications, including Java and Spring Boot upgrades and migrations to newer testing and logging libraries.

Earlier, I worked on credit card account and transaction APIs at Jafferson Bank and provider data management at Cigna Health care. I hold an AWS Certified Solutions Architect – Associate certification and a Master of Science from Osmania University.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Developer

Current

CapitalOne Bank

Jun 2025 - Present (1 year 4 months)

Designed and developed high-performance Java-based microservices for financial systems, ensuring scalability, security, and integration with global banking platforms.

Senior Backend Developer

Deutsche Bank

Sep 2022 - May 2025 (2 years 8 months)

Designed and developed high-performance Java-based microservices for financial systems, ensuring scalability, security, and integration with global banking platforms.

Senior Java Developer with AWS

Jafferson Bank

Dec 2019 - Aug 2022 (2 years 8 months)

Backend APIs deliver comprehensive account and transaction details, enabling seamless access to financial information for customers.

Java Developer with AWS

Cigna Health care

Sep 2018 - Aug 2019 (11 months)

Facilitate accurate provider data management by ensuring precise practitioner location details and relationship mappings, driving operational efficiency and enhanced data reliability.