Summary
Overview
Work history
Education
Skills
Accomplishments
Certification
Languages
Timeline
Generic
Jagadeeswaran Dhanasekaran

Jagadeeswaran Dhanasekaran

Reading,United Kingdom

Summary

Senior QA consultant with extensive experience in banking, payments, telecom, and IoT industries. Expertise in ISO 20022 migration, DB2 data validation, and automation engineering. Proven track record in payment settlement validation and data migration, enhancing operational efficiency in high-availability environments.

Overview

16
16
years of professional experience
6
6
years of post-secondary education
1
1
Certification

Work history

Lead QA Engineer (QA/IoT)

Virgin Media O2
Reading, United Kingdom
2023.12 - 2026.02
  • Managed multi-location IPTV cloud lab infrastructure across distributed data centre environments, supporting STB and streaming validation
  • Performed hardware and network testing for STBs, routers, switches, and server infrastructure including firmware and provisioning validation
  • Executed IPTV functional validation across Live, VOD, EPG, advertisement workflows, and FAST channel playback scenarios
  • Validated SSAI ad insertion and SCTE-35 markers ensuring seamless advertisement stitching and playback continuity
  • Conducted DRM and security testing including Nagra conditional access, entitlement validation, and secure content delivery workflows
  • Utilised Witbe automation for QoE monitoring and video performance validation across multi-device environments
  • Developed Python-based automation scripts for Witbe monitoring and lab validation workflows, improving automation coverage by 30%
  • Integrated Perfecto Mobile for cross-device automation testing and regression validation
  • Executed IoT and smart home sensor testing including CCTV, door alarms, motion sensors, and embedded device integration workflows
  • Performed network diagnostics, throughput testing, and QoE performance analysis including bitrate, latency, and buffering validation
  • Supported lab automation initiatives and test data preparation using Python scripting
  • Coordinated pre-release validation, defect triage, and production issue replication within lab environments

Lead QA Engineer

RBS Bank
Manchester, United Kingdom
2021.07 - 2023.12

Payments Business Analyst — Banking Payments Transformation

  • Led business analysis and migration initiatives for re-engineering a legacy payment processing engine to align with ISO 20022 data standards, delivering a 40% improvement in transaction throughput and validation performance
  • Defined business requirements, process flows, and data mapping specifications enabling real-time payment data enrichment and analytics capabilities for UK payments modernisation
  • Delivered validation and process analysis across major UK payment schemes including BACS, CHAPS, and Faster Payments, ensuring regulatory compliance and settlement accuracy
  • Supported AMH payment validation workflows for 35+ UK banks, analysing inbound/outbound payment message flows and ensuring operational readiness across multi-bank integrations
  • Designed and implemented UiPath-based automation solutions to automate payment entry workflows within the AMH platform, improving processing efficiency and reducing manual intervention
  • Identified automation opportunities across reconciliation, exception handling, and message formatting workflows, driving improved audit readiness and operational accuracy
  • Led CHAPS migration initiatives aligned with SWIFT ISO 20022 messaging standards, ensuring interoperability and seamless settlement continuity
  • Produced functional specifications, traceability matrices, and reporting dashboards to enhance stakeholder visibility and execution governance
  • Conducted gap analysis, impact assessments, and process optimisation initiatives supporting payment transformation programs
  • Facilitated cross-functional collaboration between technology, operations, and compliance teams ensuring zero disruption during migration and transformation cycles

SDET Engineer

Amazon Development Centre
, India
2021.06 - 2022.10
  • Designed and implemented end-to-end automation frameworks for Amazon Prime e-commerce workflows including user journeys, subscription flows, checkout, and payment validation
  • Built and maintained 500+ Selenium WebDriver regression automation suites supporting release-based validation and continuous delivery cycles
  • Developed automation scripts in Java using Selenium to validate UI workflows across multiple browsers and environments
  • Performed API validation using Postman, ensuring service reliability across order management, payment, and subscription microservices
  • Executed database testing and data validation to verify transactional accuracy and backend data integrity
  • Integrated automation suites with CI/CD pipelines using Jenkins and Git, enabling automated build verification and regression execution
  • Enhanced automation stability by designing reusable utilities, page object models, and scalable test frameworks
  • Supported release readiness through automated smoke, sanity, and regression validation across sprint-based deployments
  • Collaborated with development and product teams to identify automation opportunities and improve test coverage for stable features
  • Investigated automation failures, performed root cause analysis, and implemented fixes to improve framework reliability

Senior QA Analyst

Thomson Reuters Pvt Ltd
, India
2016.03 - 2021.06
  • Executed end-to-end migration validation for server relocation from US on-premise data centres to cloud infrastructure, ensuring functional parity, integration continuity, and data integrity
  • Delivered ~60% functional coverage across critical business workflows including authentication, transactions, batch processes, integrations, and environment configuration validation
  • Implemented ~30% automation coverage using Selenium WebDriver with Python, building smoke and regression suites for stable features and enabling faster release validation
  • Performed API testing using Postman and service-level validation to verify endpoint behaviour, error handling, contract compatibility, and idempotency post migration
  • Conducted database testing and reconciliation using SQL/DB2 techniques including control totals, row counts, and integrity checks to confirm migration completeness
  • Executed non-functional testing using JMeter to validate performance SLAs, throughput, latency, scalability, and cloud autoscaling behaviour compared to on-prem baselines
  • Validated cloud infrastructure components including load balancer health checks, DNS routing, security rules, IAM permissions, TLS configuration, logging, and monitoring readiness
  • Supported cutover readiness, rollback validation, and hypercare monitoring by running smoke suites, analysing failures, and coordinating defect triage with engineering teams

Telecommunications engineer

Comcast Telecom
Bangalore
2012.01 - 2016.02
  • Established and managed an offshore QA lab supporting validation of STBs, broadband gateways, routers, and sensor-based devices within the Xfinity smart home and security ecosystem
  • Executed end-to-end testing across broadband, IPTV, and VoIP platforms, ensuring seamless streaming, device interoperability, and service stability under varied load conditions
  • Designed and performed VoIP validation covering SIP signaling, codec negotiation, and inter-network interoperability across CSG and Amdocs billing environments
  • Led smart home sensor integration testing including fire/smoke alarms, door/window sensors, CCTV devices, and biometric control interfaces, validating reliable device-to-cloud communication
  • Utilised Wireshark and network diagnostic tools to analyse protocol-level traffic, optimise packet flows, and troubleshoot voice, video, and data network issues
  • Automated regression and system integration test suites using Python and Selenium, improving coverage and reducing manual effort by 40%
  • Conducted performance benchmarking and stress testing on STBs and VoIP endpoints to validate resilience and scalability during peak traffic scenarios
  • Validated BSS/OSS workflows including provisioning, billing, and service orchestration to ensure accurate subscriber lifecycle management and activation flows
  • Collaborated with development, network, and operations teams to triage defects and accelerate resolution cycles, improving release readiness and delivery timelines
  • Mitigated testing risks through environment audits, test data validation, and scenario-driven testing, ensuring consistent quality across telecom delivery pipelines

Junior test analyst

Lloyds Banking Group
Chennai, India
2010.01 - 2011.12
  • Assisted in validating loan migrations from IBM mainframe systems by analysing account balances and schedules across databases.
  • Supported DB2 data validation and reconciliation using SQL queries for loan master data verification.
  • Conducted ETL testing to ensure accurate data transformation against specifications.
  • Ensured loan financial accuracy by identifying discrepancies in migration cycles.
  • Checked loan amortization schedules and repayment setups for correct calculations.
  • Tested auto-debit and standing instructions for successful post-migration linkage.
  • Monitored batch job outputs to verify successful loan postings.
  • Maintained logs for migration defects and collaborated with teams for resolution.
  • Participated in mock conversion rehearsals and cutover validation for successful migrations.

Education

Bachelors - Electronics & Electrical Engineering

Anna University
India
2003.08 - 2007.05

Masters - Power Systems Engineering

Thiagarajar College of Engg
Madurai
2007.08 - 2009.05

Skills

Banking & Payments

UK Payment Schemes (BACS, CHAPS, Faster Payments), ISO 20022 Migration Testing, Payment Processing Validation, Payment Settlement Testing, Financial Reconciliation, Exception Handling

Quality Assurance & Testing

Functional Testing, Integration Testing, End-to-End Testing, Regression Testing, UAT Support, Test Planning, Test Case Design, Defect Lifecycle Management

Data Migration & Database Testing

Data Migration Validation, SQL, DB2, Source-to-Target Mapping, Batch Processing Validation, File-Based Testing, Control Total Reconciliation, Data Analysis

Automation & Testing Tools

Selenium WebDriver (Java, Python), TestNG, Cucumber, API Testing (Postman, RestAssured, SOAP), CI/CD (Jenkins, Git), RPA (UiPath), Perfecto Mobile

Mainframe & Legacy Systems

Legacy Payment Engine Migration, ISO 20022 Data Transformation Validation, Batch Job Monitoring, Financial Message Testing

Cloud Lab & IPTV QoE Automation

Witbe QoE Automation, IPTV Functional Validation, OTT Testing, Cloud Test Lab Infrastructure, Video QoE Analysis, Multi-device Streaming Validation, Network Simulation Testing

IoT Security & Sensor Testing

Door Alarm Testing, CCTV Camera Validation, Motion & Fire Sensor Testing, Smart Home Device Testing, Embedded Device Validation, RF Module Testing

Hardware & Infrastructure

Multi-location Data Centre Operations, IPTV Cloud Lab Management, Server Infrastructure Support, Network Hardware Testing (Routers, Switches, STBs), Nagra DRM Validation, EPG & Advertisement Testing, FAST Channel Testing, Hardware Testbed Setup

Cloud & Platforms

AWS, Azure, Oracle Cloud, IPTV & OTT Platforms, IoT Device Ecosystems

Programming & Tools

Python, Java, C, SQL, DB2, Jenkins, Git


Accomplishments

  • Best QA Engineer Shout Award, 2024
    Recognised for leading QA validation during migration of legacy set-top box platforms to a modern cloud-based IPTV ecosystem hosted on AWS and Google Cloud, ensuring seamless service continuity.
  • Best Lead of the Year — Banking Payments Automation, 2023
    Awarded for leading RPA automation initiatives supporting payment creation workflows within the AMH banking system.
  • High Performer Award — Thomson Reuters, 2016
    Recognised for identifying high-severity defects prior to production release, preventing customer disruption and potential revenue impact.
  • Best Innovator Award — Cognizant Technology Solutions, 2013
    Awarded for designing and implementing robotic automation solutions for telecom enterprise systems, improving operational efficiency.
  • IEEE International Journal Publication, 2009–2010
    Published research on Performance Analysis of Indian Electricity Boards using Data Envelopment Analysis (DEA) as part of Master’s thesis.
  • Best Innovation Award — IIT Madras & Lemelson Research Group (USA), 2007
    Recognised for developing an advanced railway signalling system aimed at improving safety within legacy railway infrastructure.
  • AI Hackathon Participation — Guinness World Record Event, 2025
    Received recognition for contributing to a global AI hackathon under the Guinness World Record event.

Certification

  • ISTQB Certified Tester — 2012
  • Certified ScrumMaster (CSM) — 2022
  • AWS Certified Cloud Practitioner — 2025
  • Oracle Cloud Infrastructure Foundations Associate — 2025
  • Oracle Certified AI Foundations Associate — 2025

Languages

English
Proficient (C2)
Tamil
Native
Kannada
Beginner

Timeline

Lead QA Engineer (QA/IoT)

Virgin Media O2
2023.12 - 2026.02

Lead QA Engineer

RBS Bank
2021.07 - 2023.12

SDET Engineer

Amazon Development Centre
2021.06 - 2022.10

Senior QA Analyst

Thomson Reuters Pvt Ltd
2016.03 - 2021.06

Telecommunications engineer

Comcast Telecom
2012.01 - 2016.02

Junior test analyst

Lloyds Banking Group
2010.01 - 2011.12

Masters - Power Systems Engineering

Thiagarajar College of Engg
2007.08 - 2009.05

Bachelors - Electronics & Electrical Engineering

Anna University
2003.08 - 2007.05
Jagadeeswaran Dhanasekaran