Manikandan Radhakrishnan
Senior Mainframe Developer
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About
Results-driven software professional with over 15 years of experience in software development, application maintenance, modernization, 24x7 production support, and operations on IBM Mainframe platforms. Possess 2+ years of experience in software testing (Sales Force – Sales Cloud, Marketing Cloud) with strong expertise in test planning, execution, and defect management. Extensive knowledge in Healthcare, Credit Card, and Supply Chain industries.
Strong technical proficiency in IBM Mainframe technologies, including COBOL, JCL, MQ, CICS, IDMS, Stored Procedures and IBM DB2. Comprehensive experience across all phases of the Software Development Life Cycle (SDLC), from requirements analysis to deployment and support. Hands-on expertise in systems analysis, design, coding, testing, implementation, maintenance, and production issue resolution.
Proven ability to provide effective 24x7 application support and ensure high availability of mission-critical systems. Strong troubleshooting and problem-solving skills, with the ability to perform well under pressure and meet tight deadlines. Demonstrated continuous technical growth and the ability to quickly adapt to new technologies and business requirements.
Effective team player with experience collaborating with cross-functional and technical teams. Self-motivated and goal-oriented, with a strong commitment to delivering projects through to successful completion. Excellent interpersonal and communication skills, with a solid understanding of technology trends and business processes.
Skilled in analyzing and understanding existing systems to identify opportunities for enhancement and optimization.
Experience
Senior Mainframe Developer/Production Support - Target Corporation
(2021-10)
Inventory Tracking Application (ITA) is a repository for all unit sales and inventory movement for Merchandising Departments. ITA contains currently sales and inventory information at the unit level as well as a limited amount of history regarding past events which lead to the current state of inventory. The primary user group for ITA is the merchant group which will use it to track their sales and inventory for analysis of current trends and problem-solving research.
In addition ITA is the source of information for a variety of other systems which use sales and inventory in calculating replenishment quantities and planning future trends. ITA contains high level information as well as the ability to drill down to information at a more granular level. Sales, On Hand, On Order and On Withdrawal information are available near real-time in ITA as well as components of these four main areas at a more detailed level.
Information is available by Item, Location and other hierarchy levels such as Subclass/Style, MIC (Multi-item code) and MSC Multi-store code.
- Incident Management - Monitor production mainframe systems to identify, analyze, and resolve application issues in a timely manner and provide real-time incident support to ensure system availability and performance and escalate critical incidents to appropriate teams and ensure timely resolution.
- Problem Resolution: Conduct root cause analysis (RCA) for recurring production issues and recommend preventive measures, Document solutions and workarounds to improve knowledge-sharing across the support team
- Application Support: Provide day-to-day support for mainframe-based retail applications, ensuring smooth operation and minimal disruption to business activities, also ensure to deploy patches, updates, and configuration changes in a timely manner.
- Monitoring and Alerting: Utilize system monitoring tools to proactively detect issues before they impact business operations, Set up alerts and dashboards to track system health and performance
- Change and Release Management: Support changing management processes by validating changes and participating in release activities, Coordinate and communicate system outages and downtime with business stakeholders.
Senior Mainframe Developer - Supervalu Inc
(2020-09 - 2021-10)
SuperValu, Inc. is an American retailing company. The corporation, headquartered in the Minneapolis suburb of Eden Prairie, Minnesota, has been in business for a century. It is the fifth-largest food retailing company in the United States. Supervalu is owned by UNFI. UNFI is a distributor of natural and organic foods, specialty foods, and related products in the United States and Canada. Worked on GAP development project.
- Analysis: GAP items identified between 2 systems (Supervalu and UNFI).
- Coordinating with Business owners, Applications coordinators, SME and Architect to drill down business requirements into technical requirements.
- Preparing Technical Design documents (TDD).
- Performing code changes as per technical design.
- Preparing test cases, test plans and Verify reports.
- Involved in preparation of Unit and Integration Test Cases.
- Participating in peer reviews.
- Co-ordination of Team activities and team management
Senior Mainframe Developer - Deloitte USI
(2017-07 - 2020-08)
Worked on Anthem–Enterprise Accumulator Hub and Mod migration. Anthem's large commercial group business currently operates on five separate legacy platforms across ten states, resulting in tremendous inefficiencies. In addition, their technology infrastructure and application landscape needed an overall modernization to support future growth.
Involved in two main workstreams: (a) Legacy T & R (Transition & Renewal) process for accumulator transition of legacy members to ISG HIX, and (b) Reporting & analytics in modernized migration as a result of Fit Gap analysis of WGS reports/letters with legacy CS90 & ACES reports/letters - Worked in decommission of Reports and Letters for CS90 and ACES systems in WGS Prime environment.
- Daily scrum calls for status updates and citing any issues for which requires onshore attention.
- Analysis, coding and unit testing for Job changes related to ODS sync process in WGS Prime environment.
- Code reviews and promotion of code to production via Endevor Tool.
- Responsible for preparation of Documentation on Analysis, Design, UTP, UTR and Sprint Demo for ODS sync process user stories.
- Also responsible for resolving prime infrastructure issues on job submission and access related issues.
- Analysis, coding and unit testing for Job changes to decommission the report & letter in WGS Prime environment.
- Coordination with IBM team in resolving environment issues in WGS prime during the unit testing phase.
- Attend daily status calls with Manager on the progress of Decommission of CS90/ACES Reports and letters.
Project Associate - EVRY India Pvt Ltd (Span Infotech) - Bangalore
(2015-04 - 2017-06)
FD Kort is a core banking solution for banks to define and maintain their card products and its accounting. It uses credit card ledger as an accounting system which helps in processing of transactions, payments, invoicing and payment follow-ups. FD Kort consists of CARDLINK product (owned by ACI) and also included the modules developed by EVRY to meet customer requirements.
It is integrated with card administration system and also EVRY core systems. This solution can be integrated with other bank's system. Worked on FD KORT - Card Maintenance project.
- Pre-study the existing application (Due-diligence)
- Understand software architecture
- Prepare the function & technical documents by working with SME's
- Prepared the maintenance approach for offshoring the maintenance project.
- Analyze the requirements given in Jira ticket
- Coding, Unit testing, System integration testing.
- Production Deployment using SM9 tool
- Support of Development & test environment batch
Maintenance Developer - EVRY India Pvt Ltd (Span Infotech) - Bangalore
(2008-09 - 2015-02)
HMS is a Health Management system which receives files from Commercial Insurance Carriers containing eligibility for their Policy holders. The files contain Policy information for the Insured and the Insured's Dependents. HMS reformats the files received from the various Commercial Insurance Carriers (referred to as the Source carrier file) to its own HMS Carrier File format. The reformat process is referred to as the CARARP. Worked on HMS Maintenance – CAARP – Health care project.
Senior Mainframe Developer - ANDOR INFO TECH
(2021-10)
Client: Target Corporation
Senior Mainframe Developer - VARITE INC
(2020-09 - 2021-10)
Client: NTT Data
Education
Master's - Computer Applications - Annamalai University
