Available for opportunities

Hi, I'm Tamal Das

DWH/BI developer at Amdocs Data Studio — tuning SQL and Informatica mappings, running environment upgrades, and keeping enterprise data pipelines reliable.

Get In Touch View Projects

About Me

Who I Am

Based in Shyamnagar, working out of Pune at Amdocs Data Studio. My day-to-day spans SQL tuning, Informatica ETL work, environment upgrades, and the scripting that keeps file monitoring hands-off.

M.Tech research in Computational Geometry gave me a habit of breaking messy problems into steps — useful when a migration has a million rows and no room for guesswork.

Shyamnagar, West Bengal, India

Amdocs — Data Studio, Pune

M.Tech CSE — NIT Durgapur

+91-86478 14741

Performance Tuning

SQL, Python, and Informatica mapping optimization to cut runtime and resource use.

Environment Upgrades

Delta analysis, implementation, and parameter file updates across release cycles.

File Monitoring

Built FIM — cron-driven checksum checks with automated email alerts.

Data Patching

Large-scale Oracle migrations with post-cutover validation and reconciliation.

Expertise

Technical Skills

Programming & Scripting

C C++ Python Bash PowerShell

Databases

Oracle SQL

Data Migration

Informatica

Containerization

Docker Kubernetes

Monitoring

Grafana Prometheus

Web & APIs

HTML CSS JavaScript REST APIs

CI/CD

Jenkins

Career

Work Experience

DWH/BI Developer

Amdocs — Data Studio, Pune, India

Jun 2025 – Present

Optimize SQL queries, Python code, and Informatica ETL mappings for better throughput and lower resource use.
Lead environment upgrade cycles — delta analysis, implementation, and parameter file updates.
Manage critical maintenance refreshes including CONV_TT, C1, and O&D.
Built a File Integration Management System (FIM) with Shell scripting and Cron for proactive file monitoring.

SQL TuningInformaticaPythonOracleShell Script

Academics

Education

Aug 2023 – May 2025

M.Tech in Computer Science & Engineering

National Institute of Technology, Durgapur

CGPA: 8.13 Research: Computational Geometry

Sep 2019 – Jul 2023

B.Tech in Information Technology

Government College of Engineering and Leather Technology

CGPA: 9.34

Work

Projects

Amdocs · AT&T USA

ETL Optimization & Environment Upgrades

Client engagement focused on squeezing performance out of existing pipelines and keeping environments current across release cycles.

SQL query optimization and Informatica mapping tuning
Python code enhancements for processing efficiency
Environment upgrades with delta analysis and component validation
FIM system — checksum validation and automated email notifications

InformaticaOracle SQLPythonBashCron

Amdocs · Telkomsel Indonesia

Large-Scale Oracle Data Patching

Migrated roughly one million records — fixed assets, billing accounts, and subscriber data — with validation at every step.

Oracle data patching across FA, BA, and subscriber records
Post-migration validation and reconciliation for data integrity
Database-level changes aligned with business requirements
Cross-functional coordination with business and technical teams

Oracle SQLData MigrationData Validation

Connect

Get In Touch

Questions, opportunities, or just a hello — drop a line.

Email

tamal3801das@gmail.com

Phone