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Senior Full Stack Software Engineer with 9 years of experience delivering enterprise banking and financial technology solutions across Capital One, Discover, Barclays, and Cognizant. Deep expertise in Java, Spring Boot, React, AWS, Kubernetes, and microservices, with a strong focus on reliability, performance, and security. Proven leader in platform modernization, identity protection and fraud prevention initiatives, payment systems, and cloud migrations. Experienced in Agile delivery and stakeholder communication, with a track record of production systems achieving 99.9%+ availability and improving user and business outcomes.…Senior Full Stack Software Engineer with 9 years of experience delivering enterprise banking and financial technology solutions across Capital One, Discover, Barclays, and Cognizant. Deep expertise in Java, Spring Boot, React, AWS, Kubernetes, and microservices, with a strong focus on reliability, performance, and security. Proven leader in platform modernization, identity protection and fraud prevention initiatives, payment systems, and cloud migrations. Experienced in Agile delivery and stakeholder communication, with a track record of production systems achieving 99.9%+ availability and improving user and business outcomes.

Sai Pranava Swaroop Rayaprolu

Full Stack Developer, Software Engineer, Back-End Developer, +2

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Senior Full Stack Software Engineer with 9 years of experience delivering enterprise banking and financial technology solutions across Capital One, Discover, Barclays, and Cognizant. Deep expertise in Java, Spring Boot, React, AWS, Kubernetes, and microservices, with a strong focus on reliability, performance, and security. Proven leader in platform modernization, identity protection and fraud prevention initiatives, payment systems, and cloud migrations. Experienced in Agile delivery and stakeholder communication, with a track record of production systems achieving 99.9%+ availability and improving user and business outcomes.…Senior Full Stack Software Engineer with 9 years of experience delivering enterprise banking and financial technology solutions across Capital One, Discover, Barclays, and Cognizant. Deep expertise in Java, Spring Boot, React, AWS, Kubernetes, and microservices, with a strong focus on reliability, performance, and security. Proven leader in platform modernization, identity protection and fraud prevention initiatives, payment systems, and cloud migrations. Experienced in Agile delivery and stakeholder communication, with a track record of production systems achieving 99.9%+ availability and improving user and business outcomes.

Available to hire

Senior Full Stack Software Engineer with 9 years of experience delivering enterprise banking and financial technology solutions across Capital One, Discover, Barclays, and Cognizant. Deep expertise in Java, Spring Boot, React, AWS, Kubernetes, and microservices, with a strong focus on reliability, performance, and security.

Proven leader in platform modernization, identity protection and fraud prevention initiatives, payment systems, and cloud migrations. Experienced in Agile delivery and stakeholder communication, with a track record of production systems achieving 99.9%+ availability and improving user and business outcomes.

Skills

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Expert

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Intermediate

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Work Experience

Senior Software Application Engineer at Capital One (Formerly Discover Financial Services)

April 1, 2024 - Present

Leading re-platforming initiative for Capital One–Discover integration using AWS DynamoDB, S3, React 21, and Spring Boot 3.0. Deployed Datadog monitoring reducing MTTR by 60%, modernized billing components improving self-service adoption and reducing call center volume by 25%, and architected Kafka-based processing for real-time updates and data consistency. Designed and developed scalable microservices using Java 21, Spring Boot 3.x, and REST APIs for enterprise banking platforms; built React customer-facing UIs with reusable component architecture. Participated in large-scale migration of Discover Identity Theft Protection into the Capital One ecosystem, optimized DynamoDB data models for high-volume transactions, and worked with AWS (S3, DynamoDB, IAM, CloudWatch). Implemented CI/CD pipelines using Jenkins and Kubernetes. Resolved critical production issues with root-cause analysis and proactive monitoring using Datadog and Splunk, improving performance via database and API optimi

Assistant Vice President (Full Stack Engineer) at Barclays US Cards

April 1, 2023 - April 1, 2024

Developed secure authentication and authorization features supporting millions of banking customers. Built reusable React components to improve maintainability and reduce development effort, and delivered REST & SOAP APIs enabling secure mobile and web transactions. Implemented Spring Security and OAuth-based authentication, designed scalable RESTful APIs consumed by web and mobile apps, and mentored junior engineers with peer code reviews. Integrated ThreatMetrix for fraud reduction (30%), enhanced authentication interfaces increasing user satisfaction (95%), and implemented data masking to ensure PCI-DSS compliance.

Associate Developer at Cognizant Technology Solutions

August 1, 2018 - April 1, 2023

Migrated monolithic applications into cloud-native Spring Boot microservices, improving availability through monitoring and performance tuning. Developed REST APIs and integrated with Oracle, MongoDB, and PostgreSQL databases. Automated deployment and build processes using Jenkins and Maven, and collaborated with client stakeholders across the project delivery lifecycle. Led migration from WebSphere to Cloud Foundry reducing infrastructure costs, built Spring Boot microservices for scalable architecture on PCF, and automated SSL certificate renewals for compliance. Implemented JMS/Kafka messaging for real-time data streaming.

Software Engineer at Tek Group Corporate Consulting Services

March 1, 2017 - March 1, 2018

Developed Java/Spring applications across the full SDLC. Built Java RESTful web services using JAX-RS (Jersey) along with WSDL, JAX-WS, and JAX-RPC programming models. Implemented AWS & GCP solutions with scalable architecture and designed MongoDB sharding for extensible data storage. Implemented using Spring MVC, Spring IoC, and Spring beans.