Sunitha Nittoor
Plano,TX
Summary
Highly skilled Mainframe Developer/Tester and Technical Team Leader with 10+ years of experience in mainframe development, testing, automation, and production support. Proven expertise in IBM z/OS, COBOL, CICS, JCL, DB2, VSAM, and modernization initiatives. Adept in Agile and Waterfall SDLC methodologies, test management, and defect resolution. Recognized for problem-solving, quality assurance, and leadership in high-impact projects across banking, transportation, and insurance domains.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Technical Team Lead
Tata Consultancy Services (TCS)
08.2022 - Current
- Working as a Team Lead for a Transportation Domain Client
- Handled end-to-end project execution on agile methodologies. As an onsite-offshore coordinator, combined hands-on technical expertise with strategic team management, from inception through planning, knowledge acquisition and delivery
- Handled technical aspects of development and testing as an individual contributor, implemented optimization and automation strategies, significantly reducing manual effort and improving productivity
- Consistently met customer SLAs and effectively managed escalations to ensure client satisfaction
- Acted as Subject Matter Expert (SME) for 25 critical applications, managing all development, testing & production support issues (Sev0–Sev4) with zero business impact 24*7
- Reduced downtime by identifying potential issues and resolving them proactively. Successfully managed multiple concurrent projects and applications.
- Good exposure to Disaster Recovery Management process, system upgrades [db2, zWS to IWS, mq manager etc]
- Also performed project management activities as a technical lead/onsite-offshore coordinator - Effort Estimation, Resource Forecast, Risk Mitigation, Project Status Reporting, Metrics.
- Mentored team members across the globe (Onsite - USA, Offshore - India, Nearshore-Mexico) providing guidance and support to think strategically with advanced innovation.
Technical Team Lead
Tata Consultancy Services (TCS)
12.2015 - 07.2022
- Worked under Banking domain and led testing and modernization efforts for JPMC’s critical Money Payment System (MTS).
- Managed system testing, production validation, and defect resolution for migration projects.
- Conducted COBOL 6 upgrade testing for 5,000+ components with zero post-production issues.
- Coordinated Agile testing ceremonies (Scrum) with onsite/offshore teams.
- Strong background in batch job scheduling, online transaction processing, and automation of testing frameworks.
IT Consultant
IBM
08.2010 - 11.2015
- Worked for Banking, insurance, retail domains
- Under Banking, worked for TD Bank (Toronto-Dominion Bank) on their most important and critical system - DAS (Deposit Account System). Played core member role in end-end deployment which included - Requirement Clarification, Impact Analysis, Design, Coding, Code Review, Unit Testing, End-to-End testing, support system testing, Installing code to production and Post-production maintenance.
- SME for most of the modules in Deposit Systems. Worked for National Australian Bank (NAB) at onsite location - Sydney, Australia. Worked for applications - Event System, Cheques System, Annuity Systems, Client Database, Australian Tax Application System, Event System - as a Mainframe Tester. Was also involved in production support activities.
- Under Insurance - worked for Fireman's Fund Insurance Company (FFIC) on QA testing, defect tracking, and production validation
- Performed end-to-end testing, defect triaging, and batch cycle monitoring for banking and insurance clients.
- Supported 24/7 production testing and defect management (Sev1–Sev4 issues) with minimal downtime.
- Conducted data validation using DB2/SQL and ad-hoc job execution with JCL for test cycles.
- Acted as SCM & Process Auditor, ensuring compliance with QA processes.
Education
Bachelor of Engineering Technology - Computer Science
VTU
Skills
- Mainframe Technologies: IBM z/OS, COBOL, JCL, DB2, VSAM, CICS, IMS DB, Natural Adabas
- Testing & QA: Manual & Automated Testing, Test Case Design, Regression Testing, System/Integration Testing, Batch & Online Testing, Defect Management, Test Data Validation
- Tools: CA Endevor, Changeman, HP Quality Center(QC) or ALM, Jira, Confluence, ServiceNow, FileAid, IBM Debug, Xpeditor, Fault Analyzer, Control-M, DB2 Utilities, SPUFI, Mainframe Utilities
- Database Skills: DB2, SQL, Querying & Validation, Data Verification & Integrity Testing
- Agile & Project Management: Agile (Scrum, Kanban), Waterfall, Jira, Confluence, Metrics Reporting, Risk Mitigation, Service Now, Jira
- Soft Skills: Excellent communication, problem-solving, attention to detail, mentoring, team collaboration, customer engagement
Certification
- “IBM Certified Database Associate” - DB2 9 Fundamentals
- “IBM Certified SOA Associate
Timeline
Technical Team Lead
Tata Consultancy Services (TCS)
08.2022 - Current
Technical Team Lead
Tata Consultancy Services (TCS)
12.2015 - 07.2022
IT Consultant
IBM
08.2010 - 11.2015
Bachelor of Engineering Technology - Computer Science
VTU
Accomplishments
- Always rated/appraised as top-contributor and ensured 100% milestone completion within deadlines.
- Achieved customer satisfaction targets consistently by ensuring timely delivery of high-quality products or services according to specifications.
- Recognized for reducing downtime by proactive issue identification and resolution.
- Volunteer: Social Media Manager, supporting 100+ scouts and families for a local cub pack of Scouting America in Plano, TX.
Personal
- Gender - Female
- USA WorkPermit Visa Type - L2S (Validity - 01/2027)
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