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Chitra John

@cjohn7

Senior Data Python Developer at Capgemini

Kerala

CapgeminiAPJ Abdul Kalam Technological University

Senior Data & Python Engineer with 12+ years of experience in designing, developing, and implementing enterprise‑scale applications and data platforms. Extensive expertise in Python‑based REST APIs, cloud‑native architectures on Azure and AWS, and end‑to‑end data ingestion, processing, and analytics pipelines. Proven experience delivering scalable and secure solutions across Banking, Healthcare, Retail, and Education domains.

Experience

Senior Data Python Developer

Capgemini

Dec 2022 - PresentNetherlands

Designed and developed private and public REST APIs to expose integrated banking datasets for internal and external consumers; built APIs supporting file-based, streaming (Kafka), and domain-store data ingestion; implemented end-to-end data pipelines from Synapse Views to Cosmos DB using blue-green deployment strategies; developed ADF pipelines integrated with Databricks for incremental data loading with six-month data retention; optimized API performance, reducing response time from 2 seconds to 200 milliseconds; automated workflows using Python and Cron jobs; created and deployed API proxies across multiple gateways (AZIAG, OPIAG, EAG); implemented CI/CD pipelines and deployed applications on Kubernetes with autoscaling; collaborated with architects and lead engineers to ensure architectural consistency; authored technical documentation and API specifications; and participated in effort estimation and release planning.

Senior Software Engineer

Citrus Informatics

May 2021 - Dec 2022USA

Designed and developed microservices-based REST APIs to generate behavioral scores from keyboard-stroke data; built predictive analytics models to support early detection of paralysis; applied object-oriented and functional programming principles; performed unit testing, peer code reviews, and Agile sprint deliveries; and leveraged Pandas, NumPy, Scikit-learn, Seaborn, and Matplotlib for advanced data analytics and visualization.

Senior Python Developer

Capgemini

Aug 2022 - Nov 2022

Developed Python-based REST APIs to retrieve failed job execution details from Informatica Cloud; stored job runtime metrics in structured data stores; and generated analytical reports to support operational monitoring and troubleshooting.

Senior Software Engineer

Citrus Informatics

Jan 2022 - Aug 2022USA

Implemented queue-based data ingestion pipelines using RabbitMQ; performed multithreaded encryption and decryption of sensitive data leveraging AWS KMS; loaded processed data into AWS Timeseries databases based on time availability; generated analytical reports and stored outputs in Amazon S3; ensured code quality through unit testing and peer code reviews; collaborated with stakeholders to translate business requirements into SDLC deliverables; and utilized Pandas, NumPy, and Matplotlib for data analysis and visualization.

Senior Project Engineer

Mahatma Gandhi University

Mar 2018 - Mar 2021

Developed and maintained enterprise applications for employee management, payroll, PF, leave, attendance, and asset tracking; built Python-based REST APIs to aggregate and deliver university data for the Department of Technical Education; automated business workflows using PHP and Cron jobs; produced comprehensive functional and technical documentation; and deployed and managed applications on AWS servers using SSH.

Technical Consultant

Wipro Technologies

Dec 2010 - Aug 2015

Prepared detailed functional and technical specifications, provided production support for Purchase modules within defined SLAs, managed production releases and end-to-end testing, performed sanity testing and code migration validations, and designed, built, and tested Oracle workflows and mappings.

Education

APJ Abdul Kalam Technological University

M. Tech

Computer Science and System Engineering

Jan 2017

Cochin University of Science and Technology

B. Tech

Computer Science and Engineering

Jan 2010

Skills

Azure
Data Factory
Data Lake
SQL Server
Blob Storage
Databricks
Key Vault
Managed Identity
Kubernetes
API Gateway
Cosmos DB
AWS
S3
Lambda
KMS
DynamoDB
Timestream
CloudWatch
EC2
EKS
Spark
Kafka
RabbitMQ
Python
SQL
PySpark
PHP
Oracle
MySQL
PostgreSQL
Snowflake
Fast API
Django
Flask
CodeIgniter
Docker
Git
GitHub
Bitbucket
Linux
Windows