Debraj Samal

About Debraj Samal

Hello Connections, I am Debraj, Software Development Engineer -1 working at CSG International having a strong foundation in Telecom BSS, Solution Engineering and Data Migration. I specialize in building scalable solutions and ensuring seamless integration and optimized performance for large-scale systems for Global Telco(s).Core Expertise - Programming: C, C++, Python, Shell ScriptingCloud & Infrasturcture: AWS Fundamentals, Cloud Computing Concepts, Linux/Unix Administration, SQL, ETL(Extract, Transform, Load)Telecom & System Design: Telecom BSS, Migration Strategies & Templates, API Integration, SDLC & Agile MethodologiesAdditional Skills: Version Control (Git), Debugging & Troubleshooting Large Systems, Problem Solving, Analytical Thinking, Cross-Team CollaborationI thrive in solving complex problems and delivering solutions that enhance user experience and system reliability. Outside of work, I enjoy playing the piano and staying active through sports and outdoor activities. Always open to connecting and exploring new opportunities in Software development and Product Development.

Experience

1. Software Development Engineer 1

   CSG

   Jul 2025 — Present · Gurugram, IN

   Designation: SDE IProject: Telstra ROCRole: Data Migration Engineer, Reference Data SME, Solutions DeveloperKey Responsibilities & Achievements:1. Delivered end-to-end Telecom BSS billing migration for Telstra, successfully migrating 800M+ pre-billed and historical records across prepaid and postpaid segments with 98%+ data accuracy through robust data governance frameworks and anomaly detection mechanisms.2. Designed and developed custom ETL pipelines and data flow solutions using Python, PL/SQL, and shell scripting within CI/CD pipelines, reducing manual validation time from 14 to 5 days and achieving 90% efficiency improvement.3. Built comprehensive data reconciliation and validation frameworks utilising AI-assisted development (Cursor AI), PL/SQL stored procedures, bulk operations, and exception handling, achieving a 98% reconciliation success rate across pre-production and UAT environments.4. Led migration strategy development, including delta migration design, cutover planning, rollback procedures, and AWS S3-based data staging for data warehouse operations, ensuring zero-downtime production deployment.5. Served as SME for Reference Data, responsible for designing, maintaining, validating, and documenting 100+ operational entity tables within the data catalogue, ensuring compliance with data governance standards.6. Developed production-grade solutions for SingleView CB and CM modules through comprehensive requirement analysis, detailed design, coding, bug fixing, unit testing, and SIT support.7. Served as SME and Developer for Japanese invoicing, designing and validating reference data mappings for 10+ invoice templates, ensuring linguistic accuracy, regulatory compliance, and cultural alignment through end-to-end data transformation logic and automated validation scripts.8. Designed and implemented REST/SOAP API integrations, optimised SQL queries, and developed UNIX shell scripts for data processing automation and server monitoring.

Education

• Ryan International School

  Higher Secondary Education, Student

  2004 — 2019

• Kalinga Institute of Industrial Technology, Bhubaneswar

  Bachelor of Technology - BTech, Information Technology