Summary
Overview
Work History
Education
Skills
Timeline
Generic

Sudish Unnikrishnan

Bracknell

Summary

Experienced Performance Test Lead with 14+ years in Performance and Non-Functional Testing, specializing in the Banking and Retail domains. Strong expertise in test strategy development, effort estimation, and using industry-standard tools like HP LoadRunner, JMeter, and Neoload. Proven ability to lead teams, manage end-to-end performance testing, and collaborate with cross-functional teams to deliver high-quality results. Excellent problem-solving skills in identifying bottlenecks, optimizing system performance, and ensuring system reliability. Experienced in cloud performance testing, automation, and Agile/DevOps environments, with onsite experience in the UK.

Overview

14
14
years of professional experience

Work History

Performance Test Manager

Centrica Plc
01.2022 - Current

Centrica Plc is a leading British multinational energy and services company headquartered in Windsor, United Kingdom. Centrica provides energy supply, services, and solutions to residential, business, and industrial customers in the UK, Ireland, and North America. The project’s scope was to conduct performance testing on their energy management platforms and customer service applications following significant infrastructure upgrades to ensure scalability and improved performance in response to growing customer demand and evolving market conditions.

• Defined and implemented performance testing strategies aligned with business and technical requirements.

• Developed comprehensive performance test plans for load, stress, endurance, and capacity testing.

• Led a team of performance testers, providing mentorship, technical oversight, and managing day-to-day activities.

• Collaborated with stakeholders, architects, and development teams to identify and prioritize performance and non-functional requirements (NFRs).

• Managed end-to-end performance test execution using tools like LoadRunner, JMeter, and Neoload, ensuring realistic workload simulation.

• Integrated automated performance testing into CI/CD pipelines, reducing test cycle times and enhancing efficiency.

• Employed monitoring tools such as Dynatrace, AppDynamics, and Grafana to track real-time performance during tests.

• Analyzed test results, identifying system bottlenecks and collaborating with development teams for optimization.

• Generated detailed performance test reports and presented key findings to stakeholders for Go/No-Go decisions.

• Led non-functional testing efforts, including disaster recovery (DR), failover testing, and security testing.

• Supported production environments by monitoring performance post-deployment and addressing any emerging issues.

• Estimated performance testing efforts, creating budgets, and managing resources across multiple concurrent projects.

• Led innovation and continuous improvement initiatives, introducing automation frameworks and custom tools for test data preparation and batch testing using Python.

• Engaged in capacity planning and resource management to optimize team performance and deliver projects on time.

• Played a key role in recruitment and hiring processes for expanding the performance testing team.

Performance Test Lead - John Lewis Partnership

Bracknell, UK
01.2019 - Current

Performance tested multiple Retail, Merchandising applications, and products using Performance Center and Jmeter tools

  • Lead team and completed two major migration programmes in Merchandising operations and Transport management.
  • Conducted complex Oracle, Abintio and Mainframe batch testing of products having intricate data setup
  • Conducted online performance testing on products and middleware applications like ESB and MQ using Jmeter and Performance centre. Extensively used multiple protocols like Web HTTP/HTML, RTE and CITRIX for testing.
  • Supported operational team in creating Splunk dashboard in production environment for live monitoring Performance of systems
  • Identified and stopped significant performance issues to production by conducting volume test with millions of records as part of batch processing
  • Lead Operational acceptance testing team to perform Nonfunctional testing like DR, Failover, archiving and purging, and user role security testing.
  • Played additional role as Innovation Champion to represent innovation and automation activities to project portfolio head and Head of Transformation
  • Actively involved in tool creation for conducting automated batch testing and test data creation using python programming language. Participated and got recognized in cognizant internal innovation events.
  • Involved in initial project discussion to prepare estimation, scope confirmation and assigning resources for all projects in Waitrose partnership (one of JL partner).
  • Performed shift left testing and identified early bugs or defects before deploying to actual Performance testing
  • Key recruitment panel member for hiring experienced external candidates.

Performance Test Lead - Boots UK

Nottingham United Kingdom
10.2018 - 12.2018

Boots UK (formerly Boots the Chemists Ltd.), trading as Boots, is a pharmacy chain in the United Kingdom, Ireland, Norway, Thailand and other territories. Project's scope is to performance test the instant Photo kiosks after the upgrades in infrastructure and services to accommodate the increasing customer growth in market.

  • Co-ordinated with project stakeholder, Dev & Ops team for understanding & finalizing performance test scope
  • Conducted Defect risk analysis of potential impact on Performance
  • Responsible for End to End performance testing from requirement gathering to publishing test report & signoff

Performance Test Lead - Lyolds Banking Group

Chennai, India; Edinburgh, Scotland &
10.2010 - 10.2018

Lloyds Banking Group is a major British financial institution formed by merging major Financial Organizations HBOS and Lloyds TSB. They provide financial services like Retail Banking, Commercial Banking, Insurance and Wealth & International services. Commercial banking domain's scope is to replace the legacy infrastructure and services with an upgraded infrastructure to accommodate the increasing customer growth in the market.

  • Led 15 member team as part of Commercial banking tower were Performance tested and delivered application/projects which are related to Commercial banking.
  • Managed stakeholders, client discussions at onshore, implementation and Go-No-Go discussions.
  • Involved in requirement gathering, work with Architects to finalize design strategy, script preparation and execution.
  • Conducted NFR workshops with Business Analysts, Project team to finalize risk and scope of applications.
  • Gained knowledge in Cost & Budget tracking, Forecasting available costs, allocating the resources to individual initiatives.
  • Prepared estimations and performance plans for different phases of Performance testing.
  • Worked as performance centre admin and involved in setup, installation, managing users, servers and license and maintenance activities.
  • Trained and mentored new joiners to project team as part of Nonfunctional Testing Center of Excellence Activities.

Education

B.E - Electronics & Communication ENGG / AIHT

Anna University

Skills

    PT Tools - HP Load Runner, HP Performance Center, JMeter, Neoload

    Scripting Protocols - Web, Web Service, Citrix, Flex, RDP, RTE, Java Vuser, SAP GUI and Ajax TruClient Protocols

    Monitoring Tools - AppDynamics, Splunk, Perfmon, HP Diagnostics, Grafana, VROPS, Teamquest and BMC

    Accessibility testing Tools - Web Accessibility Toolbar, Color Contrast Analyzer Defect Management - HP Quality Centre, HP ALM, JIRA

    Programming Language - Python and Java (basics)

Timeline

Performance Test Manager

Centrica Plc
01.2022 - Current

Performance Test Lead - John Lewis Partnership

Bracknell, UK
01.2019 - Current

Performance Test Lead - Boots UK

Nottingham United Kingdom
10.2018 - 12.2018

Performance Test Lead - Lyolds Banking Group

Chennai, India; Edinburgh, Scotland &
10.2010 - 10.2018

B.E - Electronics & Communication ENGG / AIHT

Anna University
Sudish Unnikrishnan