Chandan is a seasoned Data Architect with over 15 years of experience working with several Banking , financial, Retail clients helping them in Digital Business transformation, consulting and designing and building Real time , streaming and batch ingestion/consumption pipelines.
Apart from doing hands work I have been also taking interviews for 10 years now in technology domains including BI, DWH, ETL tools, Teradata,MPP, Python, Spark, Storm, Kafka, distributed processing, cloud technologies specifically GCP. I have been guiding and helping others grow by finding pin pointed area of improvements and area where they can excel.
Jan 2017 - Jan 2021
As a Big data Developer/Architect, provided estimations, solutions, integration, enhancement, support and development of Account information System for the client, and roles and responsibilities were as follows:-
Understand the various business functions of client and their existing banking system through interactions with the client stakeholders and related tracks.
Cassandra Modelling - Taking care of all No-SQL Cassandra activities including maintaining Key-Spaces, altering, updating and creation of database objects like User defined Functions/Tables/Materialized-Views etc. Creating and Maintaining Data Mapping/Lineage documents and Visio Models and involved in performance tuning. Conceptual and Logical Modelling using KDM tool. And DB migration using cqlmigrate.
Single handed-ly designed optimal Cassandra solution in terms of Consistency level, replication factor, Repair, compression/compaction strategies and purging approach.
Designing the flow of data Ingestion pipeline using Spark/Storm/Kafka/Hbase/Cassandra for various Banking requirements.
Creating Design documents / Analysis / scenario creation for various functionalities like De-normalizing data, Housekeeping implementation, Core Banking systems, Credit Card and Debit Cards.
Node JS scripting for specific scenarios.
Key person for One Time Load /historical load and reconciliation from source systems to Cassandra using Spark via staging.
Continuous Integration / Deployment (CI/CD) and Versioning using Git/Gerrit/Jenkins
Key person to interact with Infrastructure team and helped them with Cassandra Sizing with multi data center setup.
Implemented Authentication /Authorization on Datastax Cassandra through Kerberos. And responsible for SSL setup with Dual Authentication.
Instrumental in presenting and discussing various design decision for multiple projects and journeys as part of Central Design Authority.
Master Of computer Application
JSS Academy of Technical Education
Jun 2003 - Jun 2006
Studied computer applications
Google certified Cloud Architect
Datastax certified Cassandra Professional