Renjith Rameshan
Melbourne,VIC
Summary
Data analytics professional with 13+ years of experience designing and delivering large-scale cloud data platforms across banking, healthcare, and insurance domains. Specialized in Snowflake, AWS, and modern data architectures, with strong expertise in event-driven pipelines, DataOps, and scalable ingestion frameworks.
Proven track record of building enterprise data platforms, enabling self-service analytics, and driving AI/agentic data initiatives. Passionate about solving complex data problems, mentoring engineers, and delivering high-impact, cost-efficient solutions.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Staff Data Engineer
Commonwealth Bank of Australia (CBA)
Melbourne, VIC
10.2023 - Current
- Led design and delivery of enterprise-scale IB&M Data & Analytics Platform
- Built cloud-native serverless data platform (Snowflake + AWS) improving scalability and governance
- Replaced legacy Ab Initio pipelines with event-driven Snowflake-native architecture
- Delivered agentic AI framework using Snowflake Intelligence, reducing BAU effort from weeks → minutes
- Leading Apache Iceberg integration (Snowflake + AWS Glue + marketplace)
- Driving data mesh architecture for domain ownership and scalability
- Migrating transformations from stored procedures → dbt-based modular pipelines
Principal Data Engieer
EHealth NSW
Sydney, NSW
07.2021 - 10.2023
- Built statewide Enterprise Data Lake (EDL) + Analytics Platform
- Established DataOps culture (CI/CD + IaC) across teams
- Designed metadata-driven ingestion framework for multi-velocity data
- Enabled ingestion of structured, semi-structured & encrypted data sources
- Delivered self-service analytics platform for large-scale adoption
- Centralized Power BI governance and management across NSW
Senior Consultant
Servian (Consulting)
Sydney, NSW
11.2017 - 07.2021
Worked across multiple clients:
REST / Superannuation (Data Architect) : Designed serverless data lake for KYC & Supermatch initiatives
OFX (Near Real-time Platform) : Built event-driven pipeline (AWS → GCP using Pub/Sub & Dataflow)
ING (Risk Platform) : Improved group risk reporting pipelines and scalability
eHealth NSW (PoC Data Lake) : Delivered cloud data lake using Snowflake + AWS + GoldenGate
ANZ & Medibank : Implemented data vault enhancements & ETL automation frameworks
Data Engineer
UOB (Singapore), Maybank (Malaysia), TCS (India)
12.2012 - 10.2017
- Built Data Lake from 50+ systems across 20+ countries
- Delivered EDW using Hadoop, Hive, Teradata, Informatica
- Built Enterprise Risk Data Mart across 13 countries
- Developed insurance data warehouses (GenRe) using Kimball modelling
- Built fact/dimension models and ETL pipelines
Education
Bachelors of Technology
Kalasalingam University
India07.2012
Skills
- Snowflake: Snowflake Intelligence , Snowpipe , Iceberg, Data Sharing, Performance & Cost optimisation
- AI-Ready Data Platforms: Data products, semantic layers, feature-ready datasets, RAG enablement
- Cloud: AWS (S3, Lambda, Glue, MWAA), GCP, Azure
- Data Engineering: Batch, micro-batch, streaming, event-driven architectures
- Architecture: Data Mesh, Lakehouse, Metadata-driven ingestion frameworks
- DevOps / DataOps: Terraform, CI/CD, GitHub, automated pipelines
- Languages: SQL, Python, Shell
- Analytics: DBT, Power BI, Tableau
Certification
- AWS Data Analytics – Specialty
- AWS Solutions Architect – Associate
- AWS Certified Developer – Associate
- Snowflake SnowPro Core
- Snowflake Associate Architect
- Scrum Master Certified
Timeline
Staff Data Engineer
Commonwealth Bank of Australia (CBA)
10.2023 - Current
Principal Data Engieer
EHealth NSW
07.2021 - 10.2023
Senior Consultant
Servian (Consulting)
11.2017 - 07.2021
Data Engineer
UOB (Singapore), Maybank (Malaysia), TCS (India)
12.2012 - 10.2017
Bachelors of Technology
Kalasalingam University