DHANASHREE Gambhir
@dhanashreegambhir
Results-driven Big Data Engineer with 14 years' expertise in scalable data solutions and cloud migrations.
United KingdomWhat I'm looking for
I am a proactive Big Data Engineer with 14 years of experience designing, developing, and delivering large-scale data solutions across financial services, banking, and analytics domains.
I have strong hands-on experience with Apache Spark, Hadoop ecosystems, AWS cloud services, Quantexa Data Fusion and Entity Resolution, and have led migrations from on-premise Hadoop to AWS while building infrastructure-as-code and serverless solutions.
I collaborate closely with data scientists, analysts, and stakeholders in Agile teams, mentor junior engineers, and focus on performance tuning, data quality improvements, and secure, compliant data handling to drive actionable business insights.
Experience
Work history, roles, and key accomplishments
Quantexa Data Engineer
Barclays
May 2023 - Present (2 years 8 months)
Designed and implemented Quantexa Data Fusion models and entity resolution frameworks for financial crime surveillance, migrated on-premise Hadoop workloads to AWS, and deployed serverless data processing with CloudFormation and Lambda.
CITech Lead / Senior Big Data Developer
Citi
Feb 2022 - May 2023 (1 year 3 months)
Architected and developed end-to-end big data pipelines and a Spark-SQL file-comparison tool handling millions of records, improved ETL runtime by 30%, and led a small engineering team.
Developed data ingestion, cleansing and real-time analysis frameworks, migrated Ab Initio workloads to Spark on Cloudera, and built rule-engine and tax-fraud detection tools for banking clients.
Education
Degrees, certifications, and relevant coursework
UMUniversity of Mumbai
Bachelor of Technology, Electronics
Completed a Bachelor of Technology (B.E.) in Electronics from Mumbai University, graduating in 2010.
Tech stack
Software and tools used professionally
Availability
Location
United KingdomAuthorized to work in
Job categories
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