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Nageshvaran Gnanashanmugam

@nageshvarangnanashan

Data Architect at iLink Digital shaping enterprise data platforms; designed an HR lakehouse for about 25 source entities.

India

Message

At iLink Digital Inc., I define the target architecture for an enterprise data modernisation programme, connecting SAP SuccessFactors through Azure Data Factory to Microsoft Fabric OneLake. For the HR vertical, I designed a medallion lakehouse and data model for about 25 source entities, including incremental loads, SCD Type 2 historisation and a curated semantic model.

I also develop architecture blueprints and the IT roadmap, and present designs at CTO level. I lead a nine-person cross-functional team on a five-phase programme and established governance standards for cataloguing, lineage and stewardship.

At Electronic Arts, I led data engineering for HOTH, EA’s central warehouse for Player Experience analytics. I engineered its AWS-native Snowflake platform, with S3 ingestion, Lambda-orchestrated jobs and Snowpipe, and developed SQL and Python pipelines with Snowpark validation and transformation frameworks.

Experience

Work history, roles, and key accomplishments

Current

Data Architect / Technical Programme Manager

Current

L&T Technology Services

Jun 2022 - Present (4 years 5 months)

Define data architecture strategy and author target-state design for enterprise data modernisation, including SAP SuccessFactors to Azure Data Factory to Microsoft Fabric OneLake. Develop and maintain architecture blueprints, IT roadmap, and enterprise diagrams, and lead a nine-person cross-functional team.

Snowflake Microsoft Fabric Azure Data Factory Data Architecture Data Modeling SCD2 Data Governance Microsoft Purview Team Leadership

Current

Associate Technical Architect / Lead Data Architect

Current

iLink Digital Inc.

Jun 2022 - Present (4 years 5 months)

Define overall data architecture strategy and author target-state designs for enterprise data modernisation programmes. Lead a nine-person cross-functional team on a 24-week, five-phase plan, setting architecture standards and maintaining security guardrails.

Snowflake Microsoft Fabric Azure Data Factory Data Architecture Data Modeling SCD2 Data Governance Microsoft Purview Team Leadership

Team Lead

Mastech Infotrellis

Apr 2021 - Jun 2022 (1 year 2 months)

Migrated legacy Oracle data to Google BigQuery, built GCP dataflows in Python, and converted PowerCenter jobs to IICS. Certified on IICS CDI during the engagement.

Oracle BigQuery GCP Python Informatica PowerCenter Informatica Data Migration

Developer

KPMG

Nov 2020 - Apr 2021 (5 months)

Delivered ETL designs and Informatica mappings feeding SAP S/4HANA and the MDM platform from SAP ECC. Performed IDQ data-quality profiling across SAP source tables.

ETL Informatica SAP S 4HANA SAP ECC MDM IDIQ Data Quality

Team Lead / Developer

Cognizant Technology Solutions

Sep 2016 - Nov 2020 (4 years 2 months)

Built the Customer Analytics Data Mart from MDM and policy source systems into the FDR warehouse. Authored stored procedures, complex T-SQL, indexes, and materialized views, and onboarded two new source systems.

SQL T SQL Stored Procedures Indexes Materialized Views Data Warehouse Data Marts MDM

Developer

HCL Technologies

Sep 2014 - Sep 2016 (2 years)

Delivered a multi-source batch migration into the enterprise data warehouse across staging, warehouse, and data-mart layers. Performed workflow tuning and stored-procedure optimisation.

Data Warehouse ETL SQL Stored Procedures Workflow Optimization Batch Processing

Snowflake Architect & Administrator

AbbVie / Allergan EDW

Built Snowflake environments end to end, including databases, schemas, warehouses, and custom roles with future grants. Implemented security model with encryption, dynamic data masking, row- and column-level security, and MFA-enabled user lifecycle management.

Snowflake RBAC Data Masking Row level security Column Level Security (CLS)MFA Snowpipe S3 GitHub Performance Optimization Cost Optimization

Snowflake Architect / Data Engineer

Electronic Arts

Led data engineering for HOTH, EA's central warehouse for Player Experience analytics, owning pipeline architecture and curated reporting layer. Engineered an AWS-native platform with S3, Lambda, Secrets Manager, and Snowpipe for continuous near real-time ingestion.

Snowflake AWS S3 Lambda Secrets Manager Snowpipe Python SQL Docker GitLab CI CD Snowflake Snowpark Dynamic Tables SCD2

Lead Data Architect

L&T Finance Services

Re-architected a natural-language-to-SQL analytics pilot to be fully cloud-native, defining a core-first scope with BigQuery to OneLake ingestion via Azure Data Factory. Validated the Data Agent against a golden-question benchmark and implemented federated SAML identity and in-application approval model.

Microsoft Fabric Azure Data Factory BigQuery Natural Language Processing SQL SAML Data Architecture