Copyright 2024 ©SpringCube Asia.
About me (Registered since 12/12/2025)
13 years plus experience in software product development.
Experience in various domains (Banking – Treasury Funding ,Ecommerce – Lazada ,Adtech , MediaTech – Media Corp)
Experienced Backend & Data Engineer .
Marketing Analytics|User Growth | Affiliates Program | Attribution Modelling | Reporting & Analytics| User Segmentation| External Channel Integrations (Campaign Management) | Adtech domain
Experience with various clouds Alibaba Cloud , Microsoft Azure , Google Cloud (POC)
Advanced SQL : Complex query optimization, stored procedures, window functions,CTE’s.
RESTful APIs: Spring Boot, Microservices architecture, API-driven data integrations
Portfolio
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Principal / Lead Data Engineer
Education
- July 2008 - August 2011
Work Experience
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July 2024 - Present
Citi Bank (consulting), Singapore
Principal / Lead Data Engineer
Working for a CITI Bank as a Data Engineer Consultant for Global Treasury Funding Product to scale up Data pipeline andelevate Tech stack for both Batch and Realtime processing .
Key Responsibilities:
Architect Review ,Design Review, Impact Asessment
Ensured data quality checks, auditability, and lineage .
Implemented Spark-based ETL workflows and optimizations
Working in Agile environment, contributing to sprint planning, JIRA tracking, and cross-functional technicaldiscussions.
Tech Stack : Apache Spark,Pyspark , Spark streaming , Hive , Impala , Autosys , on premise (cloudera)
Programing Language : Java , Shell scripting .
Deployment : Jenkins pipeline, light speed ,harness
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May 2020 - January 2024
Lazada, Singapore
Senior Lead Data Engineer
Kunal Shaha (PEP Visa)
kunalsshaha@gmail.com+6594887705Singapore
Architect a strong data layer and solutioning with correct tool & technologies to enable multiple data products
End to end discussions with biz & tech in order to understand the requirements and implement the same
Leading a team of Data Engineers
Sprint planning and execution following Agile methodologies
Optimized data pipelines by implementing advanced ETL processes and streamlining data flow.
Prepared documentation and analytic reports, delivering summarized results, analysis and impact analysis tostakeholders.
Built an end-to-end data solution Polaris , that aims to report every dollar spent by the Lazada marketing team, measure theperformance of ads across 20+ channels, and compare using 10+ attribution models on batch, near real-time, and OLAP basis.
Tracking the user journey after user clicks an ad on App / Desktop / Msite , done by internal tracking system ,Externalintegration implementing the API ‘s to fetch data from external channels (Facebook , Google, Tiktok etc) for the spend,impressions etc . Affiliate Program , built different attribution models to settle up on commission payouts and implementingdifferent strategies to attract more affiliates .
Innovations & Impact
Attribution OLAP Tool : Google360 inspired OLAP tool that can consume 300 million rows of click events , trade events andprovide instant attribution channel level performance .
Cloud : AliCloud
Tools & Frameworks : Apache Spark,Flink ,Maxcompute,Datastudio,Dataphin , Maxcompute, Odps , Hologres , Apsara DB ,Spring Boot , RestApi , Oozie,
Programming Language : Java ,Pyspark
