Supritam Choudhury

Lead-level Python Engineer with 5+ years of experience in backend development, microservices, REST APIs, cloud applications, automation, data engineering, and Generative AI. Strong hands-on experience with Python, FastAPI, Flask, Django, AsyncIO, SQLAlchemy, Pydantic, PostgreSQL, Redis, Docker, and CI/CD. Experienced in designing scalable backend services, developing microservices, integrating third-party APIs, implementing asynchronous workflows, and building API-driven ETL pipelines.

Hands-on experience with AWS SQS, S3, EC2, RDS, Lambda, Batch, Secrets Manager, Parameter Store, CodePipeline, SNS, and Redshift. Experienced in team leadership, including leading the Admin Portal team for a US-based credit card onboarding platform and leading data migration activities across multiple banking modules at TCS. Also experienced in Generative AI and Prompt Engineering for e-commerce applications.

Senior Software Engineer - IT IDOL TECHNOLOGIES

(2023-11 - 2026-09)

• Developed scalable Python backend applications, REST APIs, and microservices using FastAPI, Flask, and Django.
• Designed business logic, API validation, authentication, exception handling, logging, and database integrations using SQLAlchemy, Pydantic, and PostgreSQL.
• Developed asynchronous services using AsyncIO and used Redis for caching and performance optimization.
• Integrated multiple third-party APIs and external systems for business-critical workflows.
• Built Python-based ETL pipelines to extract data from third-party APIs, transform and validate records, and load data into PostgreSQL.
• Containerized applications using Docker and implemented CI/CD pipelines for automated build, testing, and deployment.
• Worked with AWS services including SQS, S3, EC2, RDS, Lambda, Batch, Secrets Manager, Parameter Store, CodePipeline, SNS, and Redshift.
• Performed production troubleshooting, root-cause analysis, performance improvements, and technical issue resolution.
• Led the Admin Portal team for the credit card onboarding platform and collaborated with cross-functional teams on technical delivery.

Senior Software Engineer / Team Lead - IT IDOL TECHNOLOGIES

• Led the Admin Portal team responsible for administrative functionality within a microservices-based credit card onboarding platform.
• Developed Python microservices and REST APIs using FastAPI/Flask, implementing business logic, validation, exception handling, and database operations.
• Used SQLAlchemy, Pydantic, PostgreSQL, and Redis for data access, validation, persistence, and caching.
• Integrated multiple third-party APIs for compliance management, automating external data exchange and reducing manual intervention.
• Implemented AWS-based solutions using SQS, S3, EC2, RDS, Lambda, Batch, SNS, Secrets Manager, Parameter Store, CodePipeline, and Redshift.
• Worked on Docker-based deployments, CI/CD, testing, debugging, production support, and code reviews.

Senior Software Engineer - IT IDOL TECHNOLOGIES - US Transportation

• Developed Python/FastAPI microservices supporting US-based driver and fleet management workflows.
• Implemented asynchronous processing using AsyncIO for concurrent backend operations.
• Used SQLAlchemy, Pydantic, PostgreSQL, and Redis for database operations, validation, persistence, and caching.
• Designed REST APIs and integrated backend services with external systems.
• Developed and enhanced log-edit functionality, enabling operational users to update relevant fleet records.
• Containerized services with Docker and supported automated CI/CD deployments using AWS-based infrastructure.

Python Data Engineer - IT IDOL TECHNOLOGIES

• Designed and developed Python ETL pipelines for extracting data from third-party REST APIs.
• Implemented JSON parsing, data transformation, cleansing, validation, and loading into PostgreSQL.
• Handled API authentication, failures, invalid responses, missing data, and duplicate records.
• Implemented logging and exception handling to improve pipeline reliability.
• Developed reusable data-ingestion components and troubleshooting workflows.
• Used AWS SQS, EC2, and RDS along with Docker and CI/CD.

Prompt Engineer / AI Engineer - IT IDOL TECHNOLOGIES

• Designed and optimized prompts for e-commerce use cases involving Generative AI and LLMs.
• Evaluated model responses for accuracy, relevance, consistency, and business requirements.
• Performed prompt experimentation and iterative refinement to improve response quality.
• Worked with Python components supporting AI workflows and assisted with AI feature integration.

System Engineer / COBOL Developer - TATA CONSULTANCY SERVICES (TCS) - Mumbai, India

(2021-02 - 2023-11)

• Developed and maintained COBOL-based banking applications supporting critical financial transaction workflows.
• Led the Data Migration team, coordinating migration activities across multiple banking modules.
• Worked on core banking modules including Statement Generation, Receipt Generation, Teller Transactions, and Post-Transaction Processing.
• Performed data mapping, validation, reconciliation, migration analysis, and investigation of data discrepancies.
• Analyzed legacy COBOL programs and batch-processing workflows to identify migration dependencies.
• Coordinated with developers, QA, business analysts, and technical teams to resolve migration and application issues.
• Supported functional testing, regression testing, production support, and defect resolution.
• Provided technical guidance and coordinated migration activities to support timely delivery.

Bachelor of Engineering - Electronics & Telecommunication - Savitribai Phule Pune University (2016 - 2020)