Summary
Overview
Work History
Education
Skills
Certification
Additional Information
Timeline
Generic

Srinivasa Rao Challagundla

Arlington Heights,IL

Summary

Around 20+ years of total IT experience (17+ years in USA) in number of Enterprise Software Projects, including System Architecture, Design, Development, and enhancement projects. As part of assignments, I have been architecting, designing, developing, and leading multi-tier, distributed complex architectural systems. RSA 7.1, JDBS3.0, FileNet p8 and Autonomy. Exceptional knowledge and experience on Java with XML technologies like DOM, SAX, JAXP, JAXB, SOAP, WSDL, JAX-WS and XML Beans. Weblogic7.1, WAS6.1 and JBOSS EAP 7.2 Excellent ability in cloud technologies, DevOps, digital, automation tools and technologies, application design, development, and results oriented, customer focus, and People skills with experience in providing technical leadership and coordination, excellent collaborator to achieve team objectives. Experienced in executing large enterprise projects right from inception to Go Live Possess Agile/SCRUM experience. Lead multiple long-term projects, worth of ~5 million dollars of annual budget. Experience in project planning, tracking, process improvement, clarifying business requirements, defining scope and work breakdown structure. To seek and maintain full-time position that offers professional challenges utilizing interpersonal skills, excellent time management and problem-solving skills. Detail-oriented team player with strong organizational skills. Ability to handle multiple projects simultaneously with a high degree of accuracy. Hardworking and passionate job seeker with strong organizational skills eager to secure entry-level [Job Title] position. Ready to help team achieve company goals. Organized and dependable candidate successful at managing multiple priorities with a positive attitude. Willingness to take on added responsibilities to meet team goals.

Overview

24
24
years of professional experience
1
1
Certification

Work History

Sr Architect

CVS Health
01.2022 - Current
  • Other tools and technologies
  • JQuery, SAML, AJAX, PMD, JProfiler, CAST, TOAD7.6, Erwin, Documentum, IBM FileNet p8, Autonomy and HP Quality Centre
  • Object-oriented design and critical thinking skills
  • Configuration Management
  • GIT Lab, Jenkins CI/CD, VSS, CVS, CM Synergy, Clear Case and MKS, Apache Maven, Azure DevOps
  • Package SAS Solutions
  • Red Hat BPM suite, IBM TRIRIGA for Real-estate Construction, facility management JDA TM (Transportation Manager)
  • AI Technologies
  • IBM Watson Assistance.

CVS Digital
05.2020 - 12.2021
  • Platform, Harmony is an omni-channel customer pharmacy order lifecycle product that meets
  • Skills Employed: Azure AKS, JDK 1.8, Spring Cloud Hoxton SR3, Spring Boot 2.2.6, Confluent cloud Kafka, Atunity Qlik, Kafka Streams, Cosmos DB, mongo DB, APIGEE, Software AG IS/AT for On Prem Integrations, Software AG API GW, Maven, Jenkins, Junit, VS Code/IntelliJ, HPE Voltage Security, Azure App Insights
  • Azure AKV, Sonar, Swagger, Node.JS, Cloud Native Architecture.

WBA
05.2020 - 12.2021
  • Harmony, Enterprise APIs, WBA Enterprise API platform, Harmony is an omni-channel customer pharmacy order lifecycle product that meets consumer’s expectation around convenience and flexibility but also delights in market differentiating ways
  • Harmony program is to transform current reactive pharmacy experience to an initiative-taking one that empowers team members and patients to make more information
  • I have performed Sr
  • Cloud Application Architect role in Enterprise APIs platform
  • Provided program and project level architectures for systems, applications, integrations, and technology
  • Produced architecture viewpoints to modernize pharmacy workloads in to Azure Cloud Platform, Cloud Native Micro service architecture principles and presented to Client Architecture team
  • Provided IT Modernization solutions in IT Systems towards Cloud enablement, technology upgrades to build automaton
  • Design and implement HA Patterns, Design, and develop Micro services and deployed to AKS
  • Design and Build DevOps CI/CD Pipelines to package and deploy the micro services to AKS
  • Design security patterns and using AKV to store workload secrets
  • Designed and build jobs to capture real time order business events and publish to Kafka
  • Design and Build Kafka connector to load event to NO SQL data bases
  • Deploy eAPIs to AKS, monitor the health of apps using App Insights and fix the critical production issues
  • Hands on technical lead the engineering team, guide best practices, and perform code review, adopt quickly to modern technologies and business requirements
  • Lead, build strategic activities
  • Skills Employed: Azure AKS, JDK 1.8, Spring Cloud Hoxton SR3, Spring Boot 2.2.6, Confluent cloud Kafka, Attunity Qlik, Kafka Streams, Cosmos DB, mongo DB, APIGEE, Software AG IS/AT for On Prem Integrations, Software AG API GW, Maven, Jenkins, Junit, VS Code/IntelliJ, HPE Voltage Security, Azure App Insights
  • Azure AKV, Sonar, Swagger, Node.JS, Cloud Native Architecture.

CVS Health Location
09.2019 - 04.2020
  • CVS-PayFlex offers services for flexible spending, health savings, and health reimbursement accounts, as well as billing solutions, account-based health plans, rewards, and incentives
  • I have performed Senior Architect role in PayFlex systems
  • Provided program and project level architectures for systems, applications, integrations, and technology
  • Produced architecture viewpoints to modernize PayFlex systems into Cloud, Micro service architecture principles and presented to Client Architecture team
  • Provided IT Modernization solutions in IT Systems towards Cloud enablement, technology upgrades to build automaton, evaluation towards micro services architecture, build patterns
  • Identifies and solves complex design problems
  • Creates work product deliverables in accordance with Office of the CTO products and services
  • Introduced AMQ Stems solutions to enhance real time claim processing transaction in CBAS claims processing module
  • Performed POCs to Containerize CBAS monolithic JEE application and deployed to OpenShift Container platform
  • Worked in Agile, Continuous Integration and Delivery methodology
  • Skills Employed: Docker, Kubernetes, RedHat OpenShift Container Platform, Docker, MiniShift, Cloud Native architecture Development principles, Systems Analysis, design, and development, JDK 1.8, RedHat AMQ Streams, JBOSS EAP 7.2, Hibernate, Spring Cloud Hoxton SR3, Spring Boot 2.x.

CVS
05.2017 - 08.2019
  • SPRx 2.0 is to modernize the CVS legacy HBS/SPARCS systems used by Specialty Pharmacy Operations to digital platform using cloud native architecture ecosystem to support Specialty Pharmacy automation, and growth requirements
  • I have performed Sr
  • Architect role in CVS Health Specialty IS domain cloud transformation, responsible Providing program and project level architectures for systems, applications, integrations, and technology
  • Manages and interprets program and project requirements into specific system, application, and integration designs
  • Identifies and solves complex design problems
  • Designs complicated integrations with a focus on performance engineering and loose coupling utilizing APIs and Services
  • Identifies risks and proactively works to remediate technical debt
  • Devises strategies to integrate with other CVS Health enterprise systems and realize the benefits of an API and service architecture
  • Contributes to and maintains a curated representation of CVS Health’s software architecture
  • Produce Solution designs using Cloud-Native Architecture and development principles to modernize the CVS Specialty Legacy systems (SPARCS, HBS) in to digital SPRx 2.0 system
  • Produce complex architecture design artifacts like Logical, Physical, and Security architecture views using cloud Native or micro services architecture principles
  • Perform technical products/tools evaluations focused on Spring Cloud 1.4.3, Spring Boot 1.5.10, RabbitMQ 6.4, PCF, Hashicorp Consul, Kubernetes, Red-Hat BPM suite, and provide guidance to Architecture leads to build scalable, high quality architecture building blocks
  • Drive evaluation of different platforms, gather information on differences in cloud-native implementations, run research on the platform behavior under different workloads
  • Develop micro-services using Spring Cloud Greewich.SR2, Spring Boot 2.1.x, Zuul Edgy services, and Spring Configuration Server and 12 factor application development principles
  • Develop modern User Interface screens using Anjularjs that support critical specialty business functions like Patient Intake, Rx entry, verification, adjudication, and order maintenance of the 1.2 million specialty patients
  • Setup Jenking CI/CD build pipelines in Jenkins to automate continues delivery of the micro-services, user interface, and BPM component to the production environments
  • Guide enterprise-level customers through their cloud transformation journeys by sharing experience in designing distributed solutions using cloud-native platforms like Pivotal Cloud Foundry, Docker, and Kubernetes
  • Develop, enhance Specialty Common services like Security, Logging and implement Sonar Code Review tools to improve code quality
  • Skills Employed: Cloud Native or Microservices Architecture API Patterns Design and Development, IT Systems Architecture, Systems Analysis, design, and development, JDK 1.8, Pivotal Cloud Foundry, Anjularjs 4.0, Spring Cloud-Hoxton SR3, Spring Boot 2.x, ELK stack, RabbitMQ 6.4, Redhat BPM Suite 7.0, Jenkins CI/CD, Hasicorp consul, Zuul Edgy services, Kubernetes and Dynatrace monitor.

Software Architect

Walmart Store Inc
07.2015 - 04.2017
  • RealEstate IOT project is to replace WARP (Warehouse Alarm Response Platform) legacy systems
  • This is to develop a new IOT platform to increase cold-chain performance through automatic refrigeration notifications to the stores and prioritization of critical alarms
  • I have performed hands on Technology Architect – IT Systems role in multiple projects in real-estate domain, responsivities include Business requirements analysis, system design, and Developed REST service APIs consumed by mobile User Interfaces, provisioned, configured Tomcat web servers in OneOps Azure cloud platform
  • Set up an end-to-end Kafka messaging cluster, Integrating Kafka to receive refrigeration alarms from hardware sensors to ESP streams engine for business validation, processing, designed schema to house alarm, task, work order information in Cassandra DB, developed user interfaces using angular JS, implemented SSO using Ping Federate (SAML2.0 Authentication) web interfaces
  • Skills Employed: Application Design and Development, JDK 1.8, JAX-WS REST API, OneOps & MS Azure Cloud, Linux 7.x, Apache tomcat 7.x web server, Apache Kafka messaging systems, Apache Cassandra database, SAML 2.x, and IBM ESP for stream processing, Angular JS, Maven build scripts.

Engineering Consultant

Target
08.2013 - 06.2015
  • Project(s): TNO, OTM CLD, and Target.com Audit DB
  • Duration:, I have involved in multiple project(s) in Transportation Portfolio
  • Produced and reviewed System designs for multiple Projects (OTM CLD, Target.com Audit DB, Security, stability, LCM), and multimillion dollar programs (TNO - Transportation Network optimization)
  • I have Performed Portfolio ‘Engineering Consultant’ role for Transportation and GTS domain
  • Produced Architecture and Design solutions artifacts, ensured project team follows Target’s Engineering process and standards
  • I have performed hands-on Design and engineering contributions, implemented multiple Security (FTP to MFT), and Stability projects successfully to production
  • Participated and presented System designs to customer Architecture and Engineering review boards
  • Conduct Design, Code reviews
  • I have contributed to Project Intake, Analysis, and Design and Construction phases of the projects
  • Skills Employed: System Design and Architecture, Engineering Consulting, Engineering Design Reviews, L3 Support, Spring Framework 3.5, iBates, Control-M, UNIX, WAS 8.5, RSA 8.5, ETL Jobs, Spring Batch, JDA/I2 v 8.0 package, Target’s Transportation & Global Trade services Domain expertise, EDI, DB2, Oracle 11g, MS TSF, Sonar, and Target Processes.

Technical Lead

program, GLS Hazmat BOI
06.2012 - 07.2013
  • GOLF is Global order fulfillment system to create a solution that can leverage to enable continuous channel fulfillment from any of Walmart’s store/club formats around world
  • Performed ‘, - Projects’ role, worked in agile methodology, responsibility includes user stories analysis, development of web services, user screen using Open Stream Cume, JavaScript, and Ajax
  • Developed delivery module component using Cume components, deployed code to MC-55 devices using deployment manager
  • Provided EIP design pattern solution for Item file system integration with BOI, developed camel integration routes, scheduling, tracking, and reporting project (s) status to all stake holders, technical direction to team
  • Perform proof of concepts; work with Walmart tech leads to ensure quality of deliverables
  • Skills Employed: System Design, HTML, cue-me (Open stream vendor product), JavaScript, JQuery (only used for web app where view is not on MC-55 handheld), Jersey & JAX-WS, jsr311-api-1.1.1.jar, spring 2.5.6, JPA, Geronimo 2.1.7, FuseSource ESB (Active MQ, Service Mix, Camel), Cue-me deployment Manager, Informix

Technical Manager

Travelers Insurance Location
01.2009 - 05.2012
  • Product Catalog, FRM (Form Request Manager, Product Catalog is the web application that stores Travelers Business insurance forms; it provides advance search features using forms metadata
  • FRM (Forms Request Manger) is the custom-made application, which as forms workflow implanted which includes Business insurance forms definition, adjudication, approval, and dashboard features to the users
  • I have performed ‘Technical Project Manager’ role to projects teams consisting of across multiple locations and time zones
  • Performs business requirements analysis, planning, scheduling, change control and release management, deliver high quality software artifacts on time to customers, assess and provide accurate estimates, collaborated with stakeholders to finalize the scope and schedule for the project, review applications systems architecture, produce, or review design artifacts, coding, unit testing, provide technical analysis and research assistance Travelers technical leads.

Sr. Technology Architect /Cloud Application Architect

Cognizant Technology Solutions
04.2008 - 12.2008
  • Project: ACR – Automated Claims Reprocessing, is to automate the express scripts claims re-processing
  • I have performed ‘Technical Lead’ role consisting of teams across multiple locations and time zones
  • Performed Project design, development, introduce standards and best practices in the development life cycle, business requirements analysis, and coordination, planning, scheduling, tracking, and reporting project (s) status to all stake holders, escalate urgent issues on timely manner, Client relationship management, scope and change control management, quality control, and technical direction to the team
  • Review and produce design solutions to business problem, perform proof of concepts, work with Architects and customer’s tech leads to ensure quality of deliverables
  • Managed and lead 20 members team at on site and offshore
  • Skills Employed: MS Project and office tools, Visio, IBM RSA, J2EE, JSF, Spring Framework, Hibernate, JAX-WS, PMD, JavaScript, HTML, XML and AJAX, WAS 6.1, SVN and Linux

Sr. Systems Analyst / Sr. Developer

Collabra, Global Consultants Inc
09.2007 - 03.2008

Verizon Business
09.2007 - 03.2008
  • EOM (Enterprise Order Management System): I have performed ‘Senior Systems Analyst/Sr
  • Developer’ role
  • I have produced design documents to create class diagrams, sequence diagrams, collaboration diagrams for the use cases
  • Requirement’s analysis, Designed and developed BPEL processes to integrate and assemble the Web Services
  • Developed WSDLs to describe partner Interfaces
  • Developed Web Services and orchestrated them into business processes
  • He has been part of designing the BOD XML interface from external systems
  • Involved in DB design
  • Skills Employed: JDK 1.4, SOA, BPEL, ESB, WSIF, WSADIE, Web Services, Web Sphere6.0, AIX .XML, XSD’s, XMLT, ClearCase, JMS, DB2, and MQSeries

Cingular Wireless, AT&T
04.2006 - 08.2007
  • I had worked on various Cingular wireless strategic billing systems development projects using Java, JEE, AS400 and DB2 technologies
  • Project: The IICP- Integrated international calling plan: will allow AT&T/BLS and Cingular combined bill customers to pay one MRC
  • Performed role of a Sr
  • Technical Associate his responsivities included requirement gathering, analyzing the functional specifications
  • Design, review and produce design artifacts using UML, Team leading, technical direction to the team, perform proof of concept, estimated development effort, status report to Customer leads, developed Web Service (AXIS) and Web Service Clients
  • Generated Secured Certificates key store and trust store files to authenticate the Client Request to the Web Service call
  • Skills Employed: JDK 1.4, DOM, SAX, Java Beans, Multi-threading, AS400 DataQs, AS400 (iSeries), WSAD, VSS, LDAP, WAS6.1, JMS, RAD7.0, RUMBA, Documentum and DB2

British Telecom Location
01.2005 - 08.2007
  • BT.com: This portal provides the vide variety of features to BT end customers
  • I have worked in KMCCC project in this portal which has developed for call center end users
  • Performed role of a Sr
  • Technical associate Role
  • Skills, JDK 1.4, Weblogic, JSP 1.1, DOM, SAX XML Parsers, and Oracle9i, Ant, Weblogic 7.1, HTML, CSS, Java Script

Sr. Technical Associate

Tech Mahindra
12.2004 - 08.2007

Senior Software Engineer

Accurum India, Now Kanbay
11.2003 - 11.2004

Lehman Brothers
11.2003 - 11.2004
  • Credit and Operational Risk Management System: Credit Risk Project is a web-based system that maintains the repository for all the documents, Weblogic 8.1, Sybase 12.x and InteleJ

Software Engineer

Infusion Development Company
01.2003 - 10.2003

Lehman Brothers
01.2003 - 10.2003
  • Whole Loan Tracking System: Whole Loan Tracking is a web Application to support full lifecycle whole loan management system, 1, Weblogic 8.1, Sybase 12.x and InteleJ

Department of Defense
01.2000 - 10.2002
  • DITMS (Defense IT and Management WEB APP)

Software Developer

DCSSP
11.1999 - 10.2002

Education

WSDL BPEL, ESB, IBM MQSeries, WSIF, WSADIE, JAXWS, AXIS, JAX-RPC, JAX-WS and WS Security -

Master of Computer Applications - undefined

Bharathidasan University

2.1, Spring Cloud Hoxton SR3, Spring MVC 3.2.18, Spring Batch 3.0.7, Spring Security 3.2.10 - undefined

MIT professional education Tackling the Challenges of Big Data - undefined

Scrum Alliance Certified Scrum Master - undefined

Brain Bench Java, J2EE 1.4 - undefined

Skills

  • Ability to Provides program and project level architectures for systems, applications, integrations, and technology
  • Hands on Technology Architect, Software Engineer, Developer, Technology Leader, Proficient in Architecture, Application Design, and Development using Java, JEE, NodeJS, Cloud Platform (GCP, Azure, RedHat Open-Shift Container Platform), Cloud Native or Micro Services design and development, Big Data, Docker, Kubernetes, SOA, IOT, RDBMS, Web Services and other related web technologies Provided HA Design Solutions to critical business problems in multiple client engagements Well versed in Architecture, and Engineering principles Process hands on skills to implement proposed design solutions
  • Advanced-level knowledge of technologies such as:
  • Mobile/web frameworks, Omni- channel experience design, hybrid cloud, security & privacy, action arbitration, IOT, event streaming, AI/machine learning, consents, preferences, microservices, containerization, APIs, SOA
  • Extensively worked on distributed, Cloud and cloud native enterprise applications using Java 18, JEE, Azure Cloud services, Docker, Kubernetes, Open Shift Container Platform, Cloud Native Architecture, Anjularjs 5, Springboot 22x, Spring Cloud HoxtonSR3, RabbitMQ, Maven, CI/CD, DevOps, Confluent Kafka, JBPM, Zuul Edge services, Servlets20, EJB30, JDBC, JSP20, JSF12, SWING, AJAX, JMS, RMI, JSON/XML, XSLT, STS 39, Web Services (JAX-RPC, JAX-WS), REST APIs, WSDL, SOA, BPEL, JavaScript, HTML, Oracle 10g (SQL, PL/SQL), mongo DB, Cosmos DB, Hibernate, WASDIE, IBM
  • TECHNICAL SKILLS
  • Technical Roles Performed
  • Sr Technology Architect (Cloud, Cloud Native Apps), Engineering Consultant, Technical Project Manager, and Senior Developer
  • Operating Systems
  • Linux 74, UNIX, AIX, MS-DOS and OS400
  • Languages
  • Java, JEE, C, C, COBAL, PLSQL
  • Java, JEE Technologies
  • JDK1 8, EJB30, JSP20, JSF12, Servlets20, RMI, JNDI, JDBC, JMS, JAXP, JAXB, Web Services and Ant160
  • Cloud Native Applications
  • Micro-services
  • Angular JS 7, Spring Cloud - Hoxton SR3, Spring Boot 2x, ELK stack, RabbitMQ 64, Jenkins CI/CD, Hasicorp consul, Zuul Edgy services, Docker, Kubernetes, Dynatrace monitor and NodeJS
  • Cloud Platforms
  • Azure Cloud Platform (AKZ, AKV, and Application Insights), Docker, Kubernetes, RedHat Open Shift Container Platform, and OneOps open stack Cloud
  • Big Data Technologies
  • Apache Kafka messaging, and Apache Cassandra DB, Hadoop HDFS, PIG, HIVE, MapReduce, Documentum content manager
  • Frameworks
  • Jakarta Struts (Apache), WebLogic Portal 71 and Spring Framework20
  • Web technologies
  • HTML 5, AJAX, Facelets, RichFaces32 and JavaScript
  • Data Bases (RDBMS)
  • Oracle12g, DB2, MS-SQL Server2008, Informix
  • NO SQL DBs
  • Mongo DB, Azure Cosmos DB
  • XML Family Technologies
  • JSON/XML, XHTML, XSLT, XSD and XPath
  • Application and Web Servers
  • Web Logic 71, Web Sphere 61, JBOSS 50 and Tomcat 7x
  • IDEs Used
  • SpringToolSuite4, Eclipse 37, VS Code, IntelliJ, WSADIE 51, WSAD50, JBDS30, IntelliJ and RUMBA for iSeries
  • ORM Frameworks
  • Hibernate, JPA, iBATES
  • UML Designing Tools
  • Enterprise Architect and – UML case tool and Rational Rose
  • SOA Technologies
  • Skills Employed:
  • System Design and Architecture, Estimations, project execution, Project office tools, Project estimates, client management, Visio, OOAD, IBM RSA 71, UML, JEE 15 ,EJB 30, Open JPA, JAX-WS, PMD, JProfiler, CAST, JSF12, Servlet 20 & JSP 20, Ajax, Facelets, Hibernate, RichFaces 32, JavaScript, Enterprise Architect, HTML, XML and AJAX, WAS 61, JAX –RPC, JAX-WS, SOAP, XML, JBOSS 50, FileNet P8 and Oracle 10g, Autonomy, HP Quality Center, SVN, MKS and Linux

Certification

Name of Institution Certificate Year of Completion MS Azure AZ 303

Additional Information

  • AWARDS AND RECOGNIZATIONS , Cognizant Certificate of Excellence award from VP for outstanding performance and success of Walgreens Enterprise API Program Platinum Award for Real-estate IOT project achievement, customer focus in the Walmart Above & Beyond award - from Cognizant Account Management in Target account

Timeline

Sr Architect

CVS Health
01.2022 - Current

CVS Digital
05.2020 - 12.2021

WBA
05.2020 - 12.2021

CVS Health Location
09.2019 - 04.2020

CVS
05.2017 - 08.2019

Software Architect

Walmart Store Inc
07.2015 - 04.2017

Engineering Consultant

Target
08.2013 - 06.2015

Technical Lead

program, GLS Hazmat BOI
06.2012 - 07.2013

Technical Manager

Travelers Insurance Location
01.2009 - 05.2012

Sr. Technology Architect /Cloud Application Architect

Cognizant Technology Solutions
04.2008 - 12.2008

Sr. Systems Analyst / Sr. Developer

Collabra, Global Consultants Inc
09.2007 - 03.2008

Verizon Business
09.2007 - 03.2008

Cingular Wireless, AT&T
04.2006 - 08.2007

British Telecom Location
01.2005 - 08.2007

Sr. Technical Associate

Tech Mahindra
12.2004 - 08.2007

Senior Software Engineer

Accurum India, Now Kanbay
11.2003 - 11.2004

Lehman Brothers
11.2003 - 11.2004

Software Engineer

Infusion Development Company
01.2003 - 10.2003

Lehman Brothers
01.2003 - 10.2003

Department of Defense
01.2000 - 10.2002

Software Developer

DCSSP
11.1999 - 10.2002

WSDL BPEL, ESB, IBM MQSeries, WSIF, WSADIE, JAXWS, AXIS, JAX-RPC, JAX-WS and WS Security -

Master of Computer Applications - undefined

Bharathidasan University

2.1, Spring Cloud Hoxton SR3, Spring MVC 3.2.18, Spring Batch 3.0.7, Spring Security 3.2.10 - undefined

MIT professional education Tackling the Challenges of Big Data - undefined

Scrum Alliance Certified Scrum Master - undefined

Brain Bench Java, J2EE 1.4 - undefined

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