Open to opportunities

Biswajit Bhattacharya

@biswajitbhattacharya

Message

Senior Oracle PL/SQL developer and technical lead delivering data-driven solutions and team leadership.

India

Message

What I'm looking for

I want a collaborative, supportive environment where I can lead Oracle/ETL projects, mentor teams, solve data challenges, and ensure reliable deliveries.

I am a technical lead and seasoned Oracle PL/SQL developer with over 12 years of IT experience, focused on data warehousing, Oracle Forms/Reports and backend development. I consistently deliver reliable, high-quality solutions across large enterprise clients.

My strengths include developing complex SQL/PL‑SQL code, building OWB/ETL mappings, performance tuning, and scripting for automation. I have led teams of 6–10 members on projects for government, insurance and telecom clients.

Notable achievements involve delivering a multi-state US government datawarehouse, leading Forms/Reports upgrades and ERP implementations, and executing database migrations and deduplication initiatives. I manage deployments, version control (GIT/SVN) and scheduling in production environments.

I seek collaborative teams with a supportive culture where I can apply my Oracle, ETL and Unix skills to solve data challenges and mentor engineers while ensuring timely, well-tested deliverables.

Experience

Work history, roles, and key accomplishments

Current

Technical Support

Current

Deloitte

Nov 2024 - Present (1 year 7 months)

Provide technical support and develop SQL/PL-SQL code for Damodar Valley Corporation; perform root cause analysis of incidents and ensure timely delivery of fixes and enhancements.

Pl SQL SQL Root Cause Analysis Testing Incident Management Version Control

Technical Lead

Birlasoft

Jul 2022 - Nov 2023 (1 year 4 months)

Led development and support for a data warehousing project servicing multiple US state governments; developed PL/SQL, OWB mappings, shell scripts, and scheduled ETL jobs to maintain 24x7 data loads.

Pl SQL Oracle 12C Shell Scripting Crontab ETL Data Warehousing Performance Tuning

Team Lead

Wipro

Apr 2021 - Feb 2022 (10 months)

Led a six-member team delivering Oracle Forms/Reports enhancements and migrations for NSW Transport and other clients; owned requirements, development, testing, performance tuning and release management.

Oracle Reports Pl SQL Jira Git Performance Tuning Team Leadership

Team Lead

Wipro

Apr 2020 - Jun 2020 (2 months)

Led upgrades from Forms/Reports 6i to 11g/12c and development for Apollo Munich Health Insurance; managed installations, PL/SQL development, testing and a six-member team.

Oracle Forms Oracle Reports Oracle 12C Pl SQL Shell Scripting Team Leadership Performance Tuning

Senior Software Engineer

DXC

Sep 2019 - Dec 2019 (3 months)

Worked on master data deduplication project for Hewlett Packard developing and tuning PL/SQL, debugging Oracle issues and participating in daily scrums to improve data quality.

Oracle 12C Pl SQL Performance Tuning Debugging Testing Scrum

Team Lead

Mindpool Technologies

Aug 2018 - Dec 2018 (4 months)

Led a team on data migration for Fidelity Investments using Oracle 12c and Appian; handled PL/SQL development, debugging, testing, Jira updates and stakeholder coordination.

Oracle 12C Pl SQL Appian Debugging Jira Team Leadership Testing

Team Lead

Glowtouch Technologies

Jul 2016 - Feb 2018 (1 year 7 months)

Managed ERP implementation for an oil refinery using Oracle Forms/Reports and Oracle 12c; led a 10-member team across implementation, DB installation, data modeling and client presentations.

Oracle Forms Oracle Reports Oracle 12C Erwin Pl SQL Team Leadership

Senior Software Engineer

Enfragy Solution Private Limited

Sep 2012 - May 2014 (1 year 8 months)

Led enhancements in Oracle 10g Forms/Reports for IMASS project; managed a 10-member team, DB installation, RMAN backups, PL/SQL development and performance tuning.

Oracle 10g Oracle Forms Oracle Reports Pl SQL Oracle RMAN Shell Scripting Team Leadership Performance Tuning

Senior Technical Associate

Tech Mahindra

Jun 2011 - Aug 2012 (1 year 2 months)

Contributed to a data warehousing project for British Telecom using Oracle 10g and OWB; built OWB maps, developed PL/SQL packages, performed testing and tuning.

Oracle 10g Pl SQL Data Warehousing Testing Performance Tuning

IT Engineer

CMC Limited

Jul 2008 - May 2011 (2 years 10 months)

Worked on Oracle Network Mediation and Genisys insurance projects as system administrator and DBA; managed Oracle 10g/9i databases, RMAN backups, environment setup and PL/SQL development.

Oracle 10g Oracle 9i Oracle RMAN Unix Pl SQL System Administration Database Administration Troubleshooting

Software Engineer

General Computer

Sep 2005 - Aug 2007 (1 year 11 months)

Developed hospital administration and diagnostic center management systems using Oracle Forms/Reports and PL/SQL; responsible for development, testing and debugging.

Oracle Forms Oracle Reports Pl SQL Oracle9i Development Testing Debugging Oracle 9i

Associate System Consultant

Wisetech Solution

Feb 2005 - Aug 2005 (6 months)

Provided system consulting and development support on Oracle Forms/Reports and PL/SQL for client projects, focusing on application development and testing.

Oracle Forms Oracle Reports Pl SQL Application Development Testing client support