Enterprise Integration, Solution Architecture, TechnologyLeadership

Last updated in May ****

Rajat Subhra Kar

Aubrey **************@*****.*** +1-614-***-**** Rajat Subhra Kar Professional Summary

Results-driven Integration Architect with over 22 years of experience in enterprise application architecture, system integration, and digital transformation across multiple industries. Proven expertise in modern integration technologies and leading cross-functional teams to deliver scalable and secure solutions. Experience

Copula Global Consulting Inc, Consultant

• Partnered with C-level executives (CTOs, CIOs, Directors) to define modernization strategies across Retail, Insurance, Transportation, and Manufacturing verticals.

• Directed digital transformation initiatives involving cloud migration, iPaaS adoption, and business process reengineering.

• Oversaw multiple high-priority integration projects, ensuring delivery within MVP or full rollout timelines.

• Delivered advisory services on vendor selection, COTS product upgrades, and plat- form migrations.

• Established architecture governance models to support agile delivery and long-term sustainability.

Aubrey, TX, USA

Sept 2023 – Jan 2024

HCL America Inc, Senior Solution Architect

• Led enterprise-level integration and digital modernization for Fortune 500 clients such as Constellation Brands, Under Armour, Ocean Spray, and Lululemon.

• Architected and implemented scalable integration solutions using MuleSoft, Boomi, Workato, SpringBoot, and Kafka across domains like Supply Chain, Finance, and eCommerce.

• Introduced Center of Excellence (CoE) models and Community of Practice (CoP) frameworks to standardize integration practices.

• Coordinated with business architects to stabilize processes, identify bottlenecks, and implement optimized workflows.

• Managed incident and problem resolution processes for live integrations and led monthly service reviews.

• Designed reusable service templates and integration blueprints to reduce time-to- market by 25–30%.

Frisco, TX, USA

May 2019 – Sept 2024

Prolim Global Corporation, Enterprise Integration Architect

• Spearheaded the end-to-end integration between JD Edwards and JDA-WMS/JDA- TMS for order flow, inventory, and transportation orchestration as part of the Constellation Brands Inc – EDGE Program (2017–2019).

• Conducted design workshops with stakeholders to gather system-specific require- ments and modeled To-Be architecture.

• Developed asynchronous and synchronous flows using Oracle SOA Suite 12c, OSB, and Mediator.

• Led EDI transaction integrations and implemented custom frameworks for error handling and notification.

• Defined Enterprise XSDs and WSDLs for reusable service governance.

• Delivered SOA architecture to modularize business functions and streamline middle- ware capabilities for Ohio.gov Portal – DAS OAKS project (2017). Farmington Hills, MI, USA

July 2013 – Apr 2019

Rajat Subhra Kar - Page 1 of 3

• Implemented lifecycle best practices and reusable templates for Oracle SOA Suite- based solutions.

• Architected HIPAA-compliant, secure data exchange for early intervention services for NYSDOH – NYEIS project (2014–2017).

• Integrated legacy subsystems with Curam-based case management and Oracle SOA 11g.

• Designed MTOM-enabled document transmission services and led service catalog creation.

• Spearheaded service versioning strategies using GIT and improved deployment life- cycle.

Elitecore Technologies Pvt Ltd, SOA Architect

• Designed and implemented Oracle Fusion Middleware architecture for OSS/BSS systems under the NICE project.

• Applied TOGAF and eTOM methodologies, created executable BPMN processes for Order-to-Cash and Lead-to-Customer flows.

• Integrated external systems (SMS, LDAP, HRMS) via REST/SOAP services and imple- mented custom security headers.

Mauritius & Ahmedabad, In-

dia

Nov 2012 – May 2013

Enfragy India Pvt Ltd / Eaga Energy India Pvt Ltd, Technical Architect – Oracle Fusion Middleware

• Led development of energy audit and carbon footprint monitoring systems aligned with ISO 50001.

• Architected Smart Meter solutions and integrated COTS platforms using Oracle SOA 11g, BPM, and OSB.

• Designed workforce management and service assurance layers, improving customer service response times.

Newcastle, UK & Kolkata, In-

dia

Oct 2010 – Oct 2012

EasyrecruitUK.com, Sr. SOA Architect

• Delivered an end-to-end business system integrating HR, biometric attendance, messaging, and portfolio management.

• Developed and deployed executable processes for payroll, attendance, and case workflows using Oracle SOA Suite.

Glasgow, UK

July 2010 – Sept 2010

Aspirations India, Sr. Oracle SOA Architect

• Redeveloped Provident Fund system integrated with Oracle Financial and SAP HR modules.

• Developed business processes using BPEL/ESB and orchestrated data validation and approval flows.

Kolkata, India

Jan 2010 – June 2010

Education

MSc Middlesex University, Business Information Technology UK Jan 2002 – Jan 2002

BE JNNCE, Civil Engineering Shimoga

Jan 1999 – Jan 1999

Courses

Westminster College of Computing, Diploma in Computer Programming

• Completed Diploma in Computer Programming

UK

Jan 2002 – Jan 2002

Workato, Workato Pro Levels 1–3 Jan 2022 – Jan 2022 Rajat Subhra Kar - Page 2 of 3

Additional Experience

Held various roles from Analyst Programmer to Technical Lead with companies such as Marmag Solutions (UK), Infoeweb Inc (USA), Xploretech Services, Vibgyor Solutions, and Garden City Education Trust. Worked on diverse projects involving e-commerce, HR systems, custom ERP, and middleware integrations using Oracle, Java, .NET, and open-source technologies.

Additional Information

Experienced in stakeholder engagement, business process reengineering, and documentation Worked across the UK, USA, India, and Africa

Strong interpersonal, analytical, and project leadership skills Skills

Integration Platforms: MuleSoft, Boomi, Workato, Oracle SOA/BPM Suite, IBM MQ, Kafka Architecture & Design: SOA, EDA, Microservices, API Management, C4E, TOGAF Cloud & DevOps: OCI, Azure, AWS, Git, SVN, TFS

Programming & Tools: Java, SpringBoot, JSP/Servlet, SOAP/REST, WSDL, XSLT, BPMN, XML ERP/CRM Systems: JD Edwards, SYSPRO, Salesforce, Monday Other Skills: HIPAA/EDI (837p), TLS, WS-Security, Custom Logging/Error Frameworks Rajat Subhra Kar - Page 3 of 3

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