Girishma Mathilakath

Girishma Mathilakath

Experienced Big Data Engineer
Canada

About Me

Experienced Big Data Engineer having 3+ years experience, proficient in designing and deploying scalable end-to-end data solutions for enterprises, specializing in data modeling, ETL procedures, data warehousing, and kno…

Experience

Data Engineer

Citi Bank
Jan 2023 - Present · 3 years 6 months

● Effectively orchestrated the migration of critical datasets from Teradata to cloud-based storage solutions leveraging
Hive and Pyspark technologies.
● Developed and implemented ETL pipelines using IBM Infosphere Data stage for data extraction, transformation, and
loading, resulting in a reduction in processing time and improved data accuracy.
● Led cross-functional collaboration to gather requirements, design data models, and implement solutions, optimizing
migration processes, reducing downtime, and overseeing code deployment, change management, and quality assurance.
● Performed detailed analyses and interpretation of complex data, resulting in actionable insights that led to an increase in
business upliftment.

Data Engineer

Citibank
Jan 2023 - Aug 2023 · 7 months

Effectively orchestrated the migration of critical datasets from Teradata to cloud-based storage solutions leveraging Hive and Pyspark technologies.
Developed and implemented ETL pipelines using IBM Infosphere Data stage for data extraction, transformation, and loading, resulting in a reduction in processing time and improved data accuracy.
Led cross-functional collaboration to gather requirements, design data models, and implement solutions, optimizing migration processes, reducing downtime, and overseeing code deployment, change management, and quality assurance.
Performed detailed analyses and interpretation of complex data, resulting in actionable insights that led to an increase in business upliftment.

ETL Developer

Blue Shield of California
Dec 2019 - Oct 2022 · 2 years 10 months

Developed and executed data analysis techniques in the Informatica power center to identify the correlation between attributes and target variables, resulting in improvement in modeling capabilities, alongside Tidal Workload Automation Software and Autosys for job scheduling and monitoring.
Developed complex SQL queries, stored procedures, and triggers to extract, manipulate, and analyze data from relational databases such as MySQL, Microsoft SQL Server, and Oracle.
Developed data models and schemas tailored to specific application requirements, leveraging the flexibility and scalability of NoSQL databases.
Responsible for gathering, designing, developing, and deploying Power BI reports and dashboards.
Good understanding of ITIL, Incident Management, Problem Management, Change Management, Root cause Analysis.

Skills

Big Data Data Repository Hadoop Informatica PowerCenter ETL Scala Spark Apache Hive Apache Pig Amazon Web Services (AWS) Kafka NoSQL Redshift S3 SQL Python R Programming Unix HBase Apache Spark PySpark ETL ELT Informatica PowerCenter IBM Infosphere DataStage Power BI MS Excel Git Jenkins Tidal Workload Automation Software Autosys MySQL Microsoft SQL Server Oracle MongoDB Netezza SDLC Agile Waterfall Microsoft Azure Snowflake Data-Driven Decisions Learning Data Analytics Foundations: Data Power BI Developer Certification Informatica Power Center Developer Global Agile Developer Certification Business Intelligence Associate ITIL Incident Management Problem Management Change Management Root Cause Analysis
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