Summary
Overview
Work history
Education
Skills
Core Expertise
Timeline
Generic

Ganapathiram Arumugam

Livingston,United Kingdom

Summary

Senior engineering lead with 20+ years’ experience delivering mission-critical data platforms, regulatory solutions, and large-scale migrations within UK banking. Proven ability to lead high-performing teams to modernise legacy ecosystems into scalable, cloud and AI-enabled architectures, with strong focus on risk, control, and regulatory compliance.

Overview

22
22
years of professional experience

Work history

Lead Data Engineer

Natwest Group
Edinburgh
2016.03 - Current

Lead engineering delivery across multiple data platforms supporting regulatory reporting, risk analytics, and core banking operations.

Impact & Achievements:

  • Accountable for engineering delivery of a core batch data platform, leading cross-functional teams and delivering £3–4 million per annum in change
  • Led large-scale Sainsbury’s to NatWest migration, delivering engineering for transfer of:1.2M customers | 800K credit cards | 200K savings & loan accounts
  • Delivered enterprise-scale batch data pipelines, processing millions of records with strong data quality, reconciliation, and audit controls
  • Designed and implemented data reconciliation engine and data quality frameworks, strengthening regulatory compliance and data integrity
  • Drove data platform modernisation, transitioning legacy systems toward cloud-aligned architectures
  • Delivered engineering contributions to key banking initiatives including Travel Account and Budget POTS, supporting customer product capabilities and platform integration

AI-Enabled Engineering Contributions:

  • Delivered Agentic AI capability for Airflow DAG generation, accelerating pipeline development and reducing manual engineering effort
  • Built AI-powered data quality automation frameworks, enabling intelligent validation, anomaly detection, and stronger control mechanisms
  • Developed RAG-based solution to support data analysts with data lineage discovery and metadata exploration, improving data accessibility and insight generation
  • Applied Generative AI techniques to enhance engineering productivity, automation, and operational efficiency across data platforms

Leadership & Delivery:

  • Own end-to-end delivery across Agile teams, accountable for quality, pace, and outcomes
  • Define and execute engineering roadmaps aligned to business and regulatory priorities
  • Mentor and develop engineers, embedding strong engineering standards and best practices

Associate Data Engineer

Tata Consultancy Services
Edinburgh
2010.05 - 2016.02

Delivered data engineering and analytics solutions across enterprise clients, progressing into leadership roles.

Key Contributions:

  • Built and delivered data pipelines, analytics platforms, and reporting solutions
  • Developed data validation, testing, and automation frameworks
  • Implemented platform monitoring dashboards (Tableau) to improve operational visibility
  • Managed capacity planning, cost estimation, and delivery governance
  • Led and mentored teams (up to 10 engineers), driving consistent delivery against KPIs

Associate Consultant

Tata Consultancy Services
Chennai
2004.07 - 2010.04
  • Supervised and mentored 10 direct reports.
  • Recruited, trained and developed team members.
  • Developed integration and automation testing procedures.
  • Authored and maintained well-organised, efficient and successful manual test cases for entire team.
  • Created accurate and successful test scripts to manage automated testing of certain products and features.

Education

B.Tech Information Technology
India
2004-05

Skills

  • Data Engineering Tools: Informatica, AWS Glue
  • Data analytics Tools: Tableau, Power Bi
  • Big Data Tools: Hive, Impala, Scala
  • Database: Oracle, Teradata, MongoDB, DB2, SQL Server, S3, Snowflake
  • Cloud Technologies: Snowflake, AWS, Kafka
  • Language: Python, Java

Core Expertise

  • Data Engineering & Platforms: ETL/ELT pipelines, data modelling, large-scale analytics platforms
  • Cloud & Modernisation: Cloud migration, platform transformation
  • Regulatory & Risk: Data controls, reconciliation, governance, regulatory reporting
  • Engineering Excellence: CI/CD, automation, testing, Agile delivery, code quality
  • Leadership: Cross-functional team leadership, stakeholder management, delivery ownership
  • AI-Augmented Engineering: Agentic AI workflows, RAG frameworks, AI-driven automation

Timeline

Lead Data Engineer

Natwest Group
2016.03 - Current

Associate Data Engineer

Tata Consultancy Services
2010.05 - 2016.02

Associate Consultant

Tata Consultancy Services
2004.07 - 2010.04

B.Tech Information Technology
Ganapathiram Arumugam