Sonia Rana
Gurugram
Summary
Results-driven Software Engineer and Environment Management specialist with 16+ years of experience delivering complex mainframe-centric solutions across large-scale banking and financial services environments. Proven expertise in COBOL, DB2, CICS, JCL and Control-M with a strong track record of engineering robust, high-performance batch and online solutions across z/OS and distributed platforms. Experienced in leading cross-functional engineering teams, standardising environment provisioning practices, and collaborating with feature teams, architects, and business analysts to deliver scalable, repeatable solutions. Adept at working across the full delivery lifecycle — from requirements analysis and design through to testing, deployment, and operations.
Overview
16
16
years of professional experience
Work History
Incident Manager | Service Management
Tata Consultancy Services Ltd
Melbourne
10.2023 - 07.2026
- Acted as a central technical liaison between white-label contact centre operations and application squads, translating complex operational and customer issues into clear technical requirements, defect narratives, and environment/data specifications for SIT/UAT and production readiness.
- Facilitated cross-functional engineering collaboration across dev, QA, architects, business analysts, and vendors to scope technical impacts, align priorities, and drive resolution plans — maintaining full traceability of decisions, assumptions, and dependencies.
- Engineered and maintained ServiceNow dashboards and operational runbooks, providing real-time visibility into incident trends, known errors, and upcoming change windows to support go/no-go decision-making during cutovers.
- Engineered and maintained ServiceNow dashboards and operational runbooks, delivering real-time visibility into incident trends and known errors to facilitate informed decision-making during cutovers.
- Raised, validated, and coordinated RFCs, while managing deployment windows and aligning go/no-go criteria with business and technical owners.
- Served as a central technical liaison between white-label contact centre operations and application squads, translating complex operational and customer issues into clear technical requirements, defect narratives, and environment/data specifications for SIT/UAT and production readiness.
Environment Manager | Environment Tech Lead
Tata Consultancy Services Ltd
Gurugram
04.2021 - 09.2023
- Led end-to-end environment engineering across build, refresh, cloning, and decommission phases — translating project requirements into detailed execution plans covering systems, interfaces, data and access needs, timelines, and cost estimates.
- Coordinated end-to-end environment provisioning across mainframe and offhost systems — aligning configurations, interface dependencies, and data requirements between z/OS and distributed components to ensure cross-platform consistency and environment readiness.
- Developed and maintained standardised environment setup checklists, configuration templates, and runbooks for z/OS regions, datasets, ports, and access requirements — enhancing consistency and repeatability while minimizing manual effort in SIT and UAT builds.
- Coordinated environment provisioning across mainframe and offhost systems — aligning configurations, interface dependencies, and data requirements between z/OS and distributed components to ensure cross-platform consistency and readiness.
- Documented and standardised repeatable environment build and refresh procedures, reducing lead times and improving delivery predictability — supporting feature teams during SIT and UAT cycles by streamlining setup and minimizing delays.
- Resolved environment-related incidents including access, configuration, and connectivity issues — coordinating with technical and business stakeholders to restore service within agreed SLAs.
- Participated in cloning and provisioning of test environments using latest data cuts, including hands-on preparation and engineering of COBOL/DB2 programs, JCL, PROCs, and batch and online region configuration to enable SIT execution.
- Resolved environment-related incidents including access, configuration, and connectivity issues — coordinated with technical and business stakeholders to restore service.
- Led a 15-member engineering team — coordinating stakeholder onboarding and offboarding, maintaining process documentation, and managing environment cost estimates aligned to contractual agreements.
Technical Lead
Tata Consultancy Services Ltd
Pune
05.2014 - 03.2017
- Delivered batch and online solutions across the full development lifecycle — from requirements analysis and design through coding, unit testing, SIT support, and production deployment.
- Engineered and maintained complex COBOL and DB2 programs supporting high-volume payment processing and cards management across HSBC's mainframe platform.
- Analysed and resolved critical production defects and abends — performed root cause analysis and implemented fixes within tight SLA windows, minimising business impact.
- Analysed and resolved critical production defects and abends — performing root cause analysis and implementing fixes within tight SLA windows to minimize business impact.
- Collaborated with architects, business analysts, and testing teams to translate business requirements into robust, scalable mainframe solutions.
- Produced technical design documents, unit test plans, and code review artefacts — ensured adherence to engineering standards and best practices, contributing to project quality.
- Supported parallel run and cutover activities during major release events — coordinated with operations and infrastructure teams to facilitate smooth production deployments.
Technology Analyst
Infosys
11.2013 - 05.2014
- American Express AML Compliance
- Built and enhanced AML modules in COBOL/JCL; wrote efficient, standards compliant code.
Produced design specs; performed impact analysis for change requests. - Executed unit and system tests with XPEDITER; verified defect-free delivery.
Senior Software Engineer
Mindtree
07.2012 - 10.2013
- L3 mainframe support, Control-M workflows, Conducted root cause analysis to identify issues, incident/change SLAs.
- Contributed to American Express Fraud Portfolio by ensuring system reliability and timely incident response.
Software Engineer
Mphasis
03.2010 - 06.2012
- Telstra UPS (Usage processing System - Telecom Billing application)
- Developed and maintained COBOL batch applications; designed components and authored tech docs.
Performed impact analysis for new requirements and change requests; provided effort estimates. - Executed unit, system, and regression testing along with peer reviews to uphold quality standards and ensure compliance with project requirements.
Education
Bachelor of Technology - Information Technology
S.U.S College of Engineering & Technology
Punjab, IndiaSkills
- Incident & Problem Management
- Test Environment Management
- Release & Change Coordination
- Mainframe Technologies - COBOL, DB2, CICS, JCL
- Platforms- z/OS, IBM Mainframe, Distributed Systems, Offhost Integration
- ServiceNow
- JIRA
- Confluence
- SQL
- Xpeditor
- File-Aid
- SPUFI
- Control-M
- Changeman
- PSM II certified Scrum Master
Timeline
Incident Manager | Service Management
Tata Consultancy Services Ltd
10.2023 - 07.2026
Environment Manager | Environment Tech Lead
Tata Consultancy Services Ltd
04.2021 - 09.2023
Technical Lead
Tata Consultancy Services Ltd
05.2014 - 03.2017
Technology Analyst
Infosys
11.2013 - 05.2014
Senior Software Engineer
Mindtree
07.2012 - 10.2013
Software Engineer
Mphasis
03.2010 - 06.2012
Bachelor of Technology - Information Technology
S.U.S College of Engineering & Technology