Reetam

Reetam Biswas

Consultant @Tata Consultancy Services
SCRS Fellow
Associate Member @IADAS
Python Instructor
ML & Deep Learning

About Me

With over 18 years of experience in the technology industry, I specialize in architecting innovative solutions that drive automation, modernization, and measurable impact. My career has been defined by a passion for solving complex challenges through scalable design and cutting-edge technologies.

I bring deep expertise in Deltalake solutioning, enabling efficient, reliable data lakes that support advanced analytics and real-time decision-making. My recent work integrates generative AI approaches into enterprise workflows, enhancing intelligence and adaptability across systems.

As a seasoned cloud engineer, I’ve built and optimized complex data pipelines using Azure services, ensuring high performance, security, and cost-efficiency. I’ve also led large, distributed teams of 20+ professionals across multiple geographies, fostering collaboration, mentoring talent, and delivering results in high-stakes environments.

I thrive at the intersection of architecture, innovation, and leadership—always focused on building solutions that are not only technically sound but also ethically grounded and future-ready.

Education

Bachelor of Engineering in Information Technology,
Jadavpur University,
March 2007

Technical Skills

Programming:
Python, Pyspark, Pytorch, MLib, PowerShell, Objective C, Dart, SQL Script, Dart
Development Tools:
VS Code, Android Studio, Xcode, Microsoft SQL Server, Visio, CAWLA job scheduler
Database Systems:
SQL Server, DB2, Sybase, Oracle
Cloud Services:
Azure PaaS, Firebase, Flutter, PowerApp/Automate
SDLC Tools:
AzDo, Jira, Rally
CI/CD:
Azure DevX, TeamCity
Version Control:
Github, SVN, ClearCase

Experience

Tata Consultancy Services, USA

Associate Consultant May 2022 – Present

  • Working on estimation, budgeting, solution designing, and automation of complex business-critical processes.
  • Modernizing 3 retail annuity applications from on-prem to Microsoft Azure PaaS using Delta Lake architecture, reducing TCO by 27%.
  • Automating front-end flows using Power Apps and Azure services, reducing TCO by 13%.
  • Designed and automated Python ETL modules to migrate legacy Oracle SQL into Databricks Delta Lake, reducing turnaround time by 90%.
  • Developed a unified admin data flow that reduced operational cost by 47%.
  • Built DevOps wheels for Python deployment and standardized utility use across the organization.
  • Created a custom tool to secure PII data across Oracle, SQL Server, and ADLS Parquet sources with encryption and audit reporting.
  • Documented guidelines and demos for unit test case generation and integrated coverage reporting in DevOps pipelines.

Cognizant Technology, USA

Senior Associate March 2014 – May 2022

  • As Technical Lead, managed the team to deliver time sensitive service requests in Agile platform.
  • Migrated 7 on-prem applications from CGI on premises server to Microsoft Azure Cloud.
  • Built document management service for upload and download functionality in Azure serverless programming as Function App.
  • Migrated many legacy code bases to high performance scalable C#, Dot Net, SSIS and SQL.
  • Reduction of month end batch processing time by almost 50% that resulted in an overall gain of 8 hours daily work hours for Business users.
  • BMentored and managed end to end application integration with offshore developers, QA and external vendors for the MFT migration project.
  • Experienced in change management, incident management, problem management process in servicenow.
  • Contributed support to other teams for technical help with GDB debugger and analysis of complex C++ code for a Policy Admin system in Unix to Linux migration project.

Cognizant Technology, India

Associate August 2011 – March 2014

  • Worked as a developer in the Insurance domain. It includes coding, code review and process maintaining standard guidelines.
  • Implemented solutions for complex data analysis and reporting in RDMS analyzing business problems.
  • Development and bug fixing in C++ and Unix shell script applications.
  • Migrating Sybase to SQL server for a complex application.
  • Won Third place in Cognizant C2 app building challenge.
  • BImplemented batch processing system for insurance applications in SSIS and Windows batch scripts.
  • Mentored and trained junior developers and engineers to increase productivity.

Sasken Communication Technology Ltd., India

Senior Software Engineer August 2007 – August 2011

  • Researched on Android video encoding for media files to support video in Android devices.
  • Researched on building satellite based phones for military systems.
  • Developed call deflection feature as per GSM standard specifications.
  • Collaborated with cross-functional teams to deliver high-quality mobile solutions.

My Projects

Over the course of my career, I’ve transformed ideas into impactful solutions by blending technical rigor with creative problem‑solving. Each project reflects my commitment to designing scalable architectures, automating workflows, and modernizing technology landscapes.

ai_alzheimer

AI-Driven Alzheimer’s Stage Classification

Alzheimer’s disease affects millions globally, yet early-stage diagnosis remains challenging due to subtle anatomical changes and limited access to expert radiologists. This project aims to build a transparent, interpretable AI system that classifies Alzheimer’s.

Temple App

Sai Temple – Mobile app for temple service

The Temple App is a mobile-first platform designed to harmonize tradition with technology, offering a serene digital gateway to sacred experiences. Whether you're a devotee seeking spiritual connection, a priest managing rituals, or an administrator overseeing temple operations, the app brings all stakeholders together in one unified ecosystem.

Space Place

Space Place – NASA App Challenge 2025

Our app allow user a seamless experience to build scale the future model of habitats in space or planetary surface

Community Connect

Community Connect – Mobile Application

Volunteering starts next door. My app also gives opportunity to the youth to empower their community with volunteering service.

Certifications

Academy Accreditation - Generative AI Fundamentals

Elements of AI
MinnaLearn

ACM Peer Reviewer

Microsoft Certified: Azure Developer Associate

Microsoft Certified: Azure Fundamentals

Awards

TCS AI spark badge

Enthusiast and Enabler Certificate from TCS

Fedback Enabler Certificate from TCS

Star Award from Cognizant
Issued Jan 2023

Awarded for Prudent in implementing the Cognizant best practices

Voice Of the Customer from Cognizant VP

NASA Space App Challenge 2025

Membership

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Soft Computing Research Society
As Fellow Member

https://scrs.in/scrs-fellow/1408

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International Academy of Digital Arts and Sciences
Associate Member

https://www.iadas.net/membership/bio/reetam-biswas/23795

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Business Intelligence Group
Judge

https://www.bintelligence.com/judge/reetam-biswas

The Webby Awards
Judge

EXPLR + National STEM Festival
Reviewer

Articles and Blogs

ai_alzheimer

Article on HealthCare AI tool @HealthCare India

Alzheimer’s disease affects millions globally, yet early-stage diagnosis remains challenging due to subtle anatomical changes and limited access to expert radiologists. This project aims to build a transparent, interpretable AI system that classifies Alzheimer’s.

Speaker @Voxel 51 Conference

My group mentor collaboration @Code the Dream

Volunteering

Mentor
@Code Path

Mentor
@Rewriting the Code

Academic Mentor
@Code the Dream

Mentor
@Mentors in Tech (MinT)