Siva Paruchuri
Senior Java Backend Engineer
Wilmington,DE
Summary
Senior Java Backend Engineer with 15+ years of experience building enterprise‑scale, cloud‑native platforms in regulated domains including banking, healthcare, and retail. Expertise in Spring Boot microservices, Kafka‑based event streaming, secure API orchestration, and high‑availability distributed systems. Proven technical owner with deep production support experience, modernization leadership, and strong cross‑functional collaboration.
Overview
16
16
years of professional experience
Work History
Senior Java Developer
PNC Bank
Philadelphia, PA
02.2021 - Current
- Lead backend development for enterprise digital banking platforms supporting millions of users
- Designed and built Spring Boot microservices for SMS banking (TXT platform) including:
Phone verification, OTP authentication, auditing, and message lifecycle tracking - Architected Kafka-based event streaming systems with retry topics, DLQ handling, and idempotent processing
- Modernized legacy SOAP services to REST-based DSP APIs, improving scalability and performance
Owned redesign of high-traffic SMS commands (BAL, LAST/NEXT, FREE, STOP, NICK)
Contributed to PNX Digital Personalization platform integrating Personetics AI insights engine - Implemented MDM merge Kafka consumers with retry/reconciliation mechanisms and audit tracking
- Deployed services on OpenShift, optimizing JVM, logging, and performance for high TPS workloads
- Implemented enterprise-grade security (OAuth, mTLS, SAML, RBAC)
- Served as SME and production owner, handling P1 incidents and release coordination
- Led weekly production releases, performance testing, and rollout strategies (dark launches, phased deployments)
Senior Java Developer
United Health Group(UHG)
Minneapolis, MN
11.2018 - 02.2021
- Developed microservices-based APIs for Provider Master Data Management (MDM)
- Migrated legacy SOAP services to modern Spring Boot REST architecture
- Built batch processing pipelines using Spring Batch
Senior Web Developer
Wells Fargo
San Francisco, CA
04.2016 - 10.2018
- Built Scalable Banking APIs & Integrations: Designed and developed REST/SOAP services for fund transfers (Zelle) with partner bank integrations, EWS systems, and core banking platforms, enabling secure, high-volume transaction processing.
- Drove Automation & CI Quality Engineering: Implemented API frameworks and automated regression testing within CI pipelines; customized "CA -Dev Test" tool to improve release reliability and reduce manual testing effort.
- Owned Delivery & Production Readiness: Collaborated with stakeholders to translate requirements, supported integration and DB changes, and handled production support with offshore coordination.
Senior J2EE Developer
Consensus Corp.
03.2015 - 03.2016
- Architected Modular Commerce Platform: Designed scalable, omni-channel services using REST APIs, workflow engines (Activiti /Drools, BPMN), and flexible system architecture for rapid feature delivery.
- Built Testing & Data Platforms: Developed internal mock server (Carrier Responder) with UI, enabled API simulation/testing, and implemented product catalog services with MongoDB (including data migration).
- Enabled Cloud & Performance Engineering: Integrated AWS deployment, CI pipelines, secure key management, and conducted performance testing to ensure scalability and reliability.
Senior J2EE Developer
Wells Fargo
San Francisco, California
08.2013 - 02.2015
- Modernized Enterprise Wire Transfer System: Designed service-oriented architecture using Spring, SOAP services, and BPEL workflows to support secure financial transactions within enterprise portals.
- Implemented High-Performance & Event-Driven Systems: Built JMS-based messaging, caching (Oracle Coherence), and scalable service/data models for real-time processing.
Senior J2EE Developer
Macy’s Inc.
San Francisco, California
02.2013 - 08.2013
- Re-Architected High-Traffic E-Commerce Platform: Transformed legacy monolith into modular, scalable Spring MVC-based architecture supporting checkout and catalog systems.
- Delivered Full-Stack Backend Solutions: Designed data models, implemented controllers/DAOs, and built service integrations with Hibernate-based persistence.
- Drove Agile Delivery & Stability: Partnered with stakeholders, supported deployments, and resolved production issues to ensure system reliability.
Senior J2EE Developer
J.B. Hunt
Bentonville, AR
09.2012 - 02.2013
- Led Mainframe Modernization: Migrated legacy systems to distributed Spring-based architecture enabling real-time fleet tracking and scheduling.
- Developed Scalable Backend Systems: Built web services, business logic layers, and persistence frameworks using Spring, Hibernate, and SOAP integrations.
- Improved Codebase & CI Practices: Performed DB migration analysis, cleaned repositories, restructured SVN, and enhanced CI/CD pipelines (Hudson).
J2EE Developer
Optum / UHG
Minneapolis, MN
11.2011 - 09.2012
- Led Project Planning & Delivery: Managed WBS, project planning, and cross-team coordination for healthcare platform delivery.
- Built Cross-Platform UI Systems: Developed responsive web/mobile interfaces enabling healthcare workflows across devices.
- Ensured Quality & Device Integration: Conducted compatibility testing and supported secure mobile device configuration and deployment.
J2EE Developer
Prime Therapeutics
03.2011 - 09.2011
- Built PBM Platform for Benefit Management: Replaced legacy workflows with scalable application for benefit plan and accumulator management integrated with RxCLAIM.
- Developed Backend Services & Data Layer: Implemented SOAP services, Spring/Hibernate-based persistence, and SQL/JDBC integrations.
- Enabled Messaging & Quality Engineering: Built JMS-based communication, test frameworks, and ensured Agile delivery with high code quality.
Java-Flex/Flash Developer
AT&T
Irving, TX
08.2010 - 02.2011
- Developed LMS Content Delivery Platform: Built core engine components for rendering training content with XML parsing and validation.
- Engineered Rich UI Experiences: Developed interactive interfaces using Flex, ActionScript, and web technologies.
- Supported Integration & Build Automation: Enabled Flex-Java integration, performance testing, and automated builds in Agile environment.
Education
Master of Science - Software Engineering
Stratford University
McLean, VA2008
Bachelor of Science - Electrical & Electronics Engineering
JNTU
India 05.2001 -
Skills
Java, J2EE,
Spring
REST, SOAP, Microservices
Kafka
Oracle DB
Openshift, AWS, docker kubernetes
Object oriented programming
CLIENTS
- PNC Bank
- UHG
- Wells Fargo Bank
- Consensus Corp. [Target Corp.]
- Macy’s Inc.
- J.B. Hunt
- Optum / UHG
- Prime Therapeutics
- AT&T
- Fairview
Timeline
Senior Java Developer
PNC Bank
02.2021 - Current
Senior Java Developer
United Health Group(UHG)
11.2018 - 02.2021
Senior Web Developer
Wells Fargo
04.2016 - 10.2018
Senior J2EE Developer
Consensus Corp.
03.2015 - 03.2016
Senior J2EE Developer
Wells Fargo
08.2013 - 02.2015
Senior J2EE Developer
Macy’s Inc.
02.2013 - 08.2013
Senior J2EE Developer
J.B. Hunt
09.2012 - 02.2013
J2EE Developer
Optum / UHG
11.2011 - 09.2012
J2EE Developer
Prime Therapeutics
03.2011 - 09.2011
Java-Flex/Flash Developer
AT&T
08.2010 - 02.2011
Bachelor of Science - Electrical & Electronics Engineering
JNTU
05.2001 -
Master of Science - Software Engineering
Stratford University