Gulshan Jamaiwar

About Gulshan Jamaiwar

With over 4+ years of experience in the IT industry, I currently work as a SQL/PLSQL Developer (official title: Technical Lead at Wipro), deployed full-time at ICICI Bank’s Tech Office in the Cards & Payments domain, specifically in the Credit Card team.I specialize in:Designing and developing efficient Oracle SQL & PL/SQL procedures, functions, packages, and triggersAdvanced data extraction, query optimization, and performance tuning for mission-critical banking systemsSupporting Credit Card processing using ISO8583, TSYS Prime, and custom logic for transaction routing, authorization, and settlement Domain Expertise: Cards & Payments (Debit/Credit Card Processing, Settlement, Authorization), Banking, Fintech Technology: Oracle SQL, PL/SQL, TOAD, SQL Developer, Linux, Unix Shell Scripting Methodologies: SDLC, Agile, ITIL (Incident, Change, RCA) Additional Tools: Advanced Excel, Power BI, Tableau (used in previous roles) Key Strengths:Strong in problem-solving, especially optimizing legacy SQL/PLSQL code for performance and scalabilityExperienced in end-to-end development and supporting large-volume transactional systems in productionExcellent at cross-functional collaboration, stakeholder communication, and issue triaging Notable Achievements:Built and tuned complex PL/SQL procedures for Credit Card transaction processing (ICICI Bank)Reduced query execution time by 25% by optimizing PL/SQL logicAutomated data validation and transformation tasks using Shell scripting, saving 15+ hours per weekMigrated critical banking data (Exim Bank – Africa region) with 100% accuracyI\'m passionate about leveraging PL/SQL development and domain-specific logic to build scalable, high-performance solutions in the Banking & Payments space. Actively seeking roles as a SQL/PLSQL Developer in financial services or fintech where I can contribute to high-impact system development and data engineering projects.

Experience

1. Sql & Pl Sql Developer

   Wipro

   Nov 2024 — Present · Mumbai, IN

   SQL/PLSQL Developer – Cards & Payments (Client: ICICI Bank)Description:> Working in the Credit Card team for ICICI Bank under Wipro deploymentDeveloped and maintained complex PL/SQL stored procedures, functions, packages, and triggersBuilt scalable SQL queries for data extraction, reporting, and analysisPerformed query optimization and PL/SQL performance tuning for production queriesSupported migration activities and data cleanups using advanced Oracle featuresWorked on ISO 8583-based transactions, Cards & Payments domain logicCollaborated with cross-functional teams to support new feature rolloutsTools/Environment: Oracle 12c/19c, TOAD, SQL Developer, Unix, Excel

Education

• Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur

  Bachelor of Engineering - BE

  2017 — 2020

• Maharashtra State Board Of Technical Education

  Diploma in Civil Engineering

  2015 — 2017