Murali Reddicherla
Senior Mainframe Developer / Technical Lead
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About
Senior Mainframe Developer / Technical Lead with over 20 years of hands-on application development, technical design, solution architecture, and technology delivery experience across Banking and Insurance. Strong expertise in Mainframe, Java/J2EE, Spring Boot, REST APIs, Web Services, MQ, Kafka, DB2, IMS, CICS, and enterprise integrations. Proven hands-on experience in coding, API development, integration design, impact analysis, debugging, code reviews, defect resolution, implementation, and production troubleshooting while providing technical leadership to development teams.
Application Development & Management: Extensive hands-on experience across the full SDLC, including requirements analysis, technical design, coding, API development, integration, unit/system testing, implementation, warranty, troubleshooting, and production support.
Legacy System Modernization: Deep expertise in mainframe technologies (COBOL, DB2, IMS-DB/DC, CICS, VSAM, JCL, PL1, Focus, SAS, CA-TELON, and others) and modernization using IBM ODM-ZRES, IBM RAA, CAST tools, zDevOps and cloud migration strategies.
Enterprise Architecture & Technical Design: Skilled in high-level and detailed solution design, PoC development, interface specifications, data flows, and solution overview diagrams across mainframe, distributed, web, API, and cloud-integrated applications.
API & Integration Systems: Hands-on experience designing and supporting REST APIs, Web Services, IMS MQ and CICS MQ transactions, and mainframe-to-distributed integrations supporting web, mobile, IVR, upstream, and downstream enterprise systems.
Cloud & DevOps: Hands-on experience with PCF/OCP, AWS and zDevOps tools for modernizing enterprise applications.
Software Development: Hands-on development experience with COBOL, PL/I, DB2, IMS, CICS, JCL, Java/J2EE, Spring Boot Microservices, REST APIs, C, C++, C#.Net, ASP.Net, HTML, Oracle, SQL Server, and DB2.
Data & ETL Processing: Expertise in ETL processes, including analysis, coding, and testing of ETL components.
Project & Delivery Management: Experience working as a Senior Developer / Technical Lead while remaining hands-on with development, technical design, code reviews, troubleshooting, integrations, implementation, and production support. Strong understanding of SAFE Agile, DevOps, Iterative, and Waterfall methodologies. Hands-on experience with release management, implementations, RFCs, RCAs, and production support coordination.
Collaboration & Stakeholder Management: Proven ability to work with cross-functional teams to ensure accurate estimations, schedule tracking, and risk assessment for third-party integrations. Excellent communication skills, client relationship management, and stakeholder engagement.
Industry Expertise: Specialization in FS -Banking, Insurance and Capital Marketing, lending applications, and Canada group retirement applications.
Experience
Software Engineer III / Technical Lead - Mainframe, Java & API Integration - TD Bank, Canada - Toronto, ON, Canada
(2025-04)
Key Programs Executed: TD Debt -VISA OCT (Original Credit Transactions). TDI L&H -GPI, ING Apps – CP Underwriting Modernization
- Performed hands-on technical design, development, enhancement, debugging, and troubleshooting for strategic banking and insurance applications using COBOL, DB2, IMS, JCL, Java, Spring Boot, REST APIs, and Web Services.
- Designed and supported API and integration components connecting IBM Mainframe applications with distributed, web, and downstream enterprise systems; analyzed interface flows, data mappings, and upstream/downstream impacts.
- Developed and reviewed System Design Specifications (SDS), detailed technical designs, interface specifications, implementation plans, and backout procedures for TD Debt and TDI L&H modernization initiatives.
- Performed requirements analysis, application impact analysis, effort estimation, code changes, code reviews, unit testing, defect fixes, and integration troubleshooting.
- Led end-to-end technical design and hands-on delivery for TD Debt Card applications on IBM Mainframe, including application changes and integration impacts.
- Supported SIT, E2E, UAT, and PAT testing, including defect investigation, root-cause analysis, technical fixes, and production implementation support.
- Provided technical leadership through design reviews, code reviews, mentoring, architecture alignment, and resolution of complex application and integration issues.
- Provided hands-on production support, incident troubleshooting, root-cause analysis, performance/process improvement, and modernization recommendations.
- Technical Environment: MVS, ZOS,COBOL,JCL, DB2, IMS DB DLI/BMP/MPP online screens, online transactions, INSYNC, Endevor, CA-7, File-aid, File aid IMS, DBVisualizer, SAS, Java, Spring, Webservices APIs, AWS, IDz, VS Code, Bitbucket, Jenkins, Git, CDD/IDD.
Technical Lead / Senior Developer - Mainframe, Java & API Integration - Sun Life Financial, Canada - Toronto, ON, Canada
(2024-05 - 2025-02)
Key Programs Executed: GRS Decumulation -Digital Enrollment. Regulatory changes – Quebec Legislative changes. zDevOps – CHARM Migration -zDevOps Pipelines
- Performed hands-on technical design, development, enhancement, and troubleshooting for Group Retirement Services (GRS) digital enrollment, Quebec regulatory changes, and zDevOps modernization initiatives.
- Developed and enhanced mainframe and distributed components using COBOL, JCL, DB2, IMS, SAS, Java, Spring Boot, REST APIs, and Web Services, including application and integration changes.
- Designed API/integration flows and technical solutions across mainframe and distributed systems, including interface analysis, data mapping, impact assessment, and issue resolution.
- Performed code/design reviews, defect analysis, integration troubleshooting, testing support, implementation, and production issue resolution while mentoring development team members.
- Supported legacy modernization and zDevOps/CHARM migration by analyzing existing applications, defining modernization approaches, and supporting CI/CD pipeline adoption.
- Provided technical leadership while remaining actively involved in hands-on development, troubleshooting, release implementation, and post-production support.
- Technical Environment: MVS, ZOS,COBOL, PL1, JCL, DB2, IMS DB DLI/BMP/MPP online screens, online transactions, INSYNC, CHARM, CA-7, File-aid, File aid IMS, DBVisualizer, SAS, Java, Spring, Webservices APIs, AWS, IDz, Bitbucket, Jenkins, Git, CDD/IDD.
Technical Delivery Lead / Mainframe, Java & API Integration - RBC, Canada - Toronto, ON, Canada
(2021-03 - 2024-04)
Key Programs Executed: HomeX Mega Journey - Digital Mortgage / Legacy Modernization (Mainframe to Cloud) | LOB: Mortgage / Lending RCPS -IIB9 to ACE11 Migration Bill 53 Regulatory and Compliance Project PCF to OCP Cloud Migration
- Performed hands-on analysis, technical design, development support, application enhancement, troubleshooting, and implementation for RBC banking modernization initiatives across mainframe, Java/API, middleware, and cloud platforms.
- HomeX: supported modernization of mortgage application capabilities from legacy mainframe to cloud/distributed architecture, including API enablement and integration between digital/distributed services and backend systems.
- Analyzed COBOL, DB2, IMS, JCL, Java, Spring, Web Services/API components and upstream/downstream interfaces to identify application, data, and integration impacts.
- Designed enterprise integration and API-enabled solutions, including interface specifications, application flows, data mappings, technical designs, and modernization patterns.
- Supported RCPS IIB9-to-ACE11 middleware migration, Bill 53 regulatory changes, and PCF-to-OCP cloud migration through impact analysis, technical design, testing, defect resolution, and implementation.
- Participated in development activities, code/design reviews, unit/integration testing, defect triage, debugging, and resolution of complex application and API/integration issues.
- Supported end-to-end SDLC activities including feasibility analysis, development, SIT/UAT support, production deployment, warranty support, and production troubleshooting.
- Provided technical leadership through code reviews, design reviews, mentoring, performance analysis, and resolut
