KALAIARASU PANNEERSELVAN
London,United Kingdom
Summary
Experienced Senior Architect with 19+ years in BFSI (including 12+ years with Citi), adept at leading operations support and infrastructure projects in cloud-native, on-premises, and hybrid settings. Led a 100M+ customer engagement across multiple technologies, driving the digital transition and delivering all milestones on time.Proven ability to deliver robust DevOps and infrastructure solutions for international clients, prioritizing reliability and scalability. Expertise in driving customer-centric initiatives using automation and cloud best practices, alongside managing extensive distributed teams and intricate stakeholder dynamics.
Overview
20
20
years of professional experience
2
2
years of post-secondary education
1
1
Certification
Work history
Senior Architect – DevOps / Cloud / SRE
LTIMindtree
London, United Kingdom
02.2025 - 12.2025
- Support key BFSI customer environments focusing on DevOps, cloud infrastructure, and SRE to ensure availability, scalability, and performance of critical platforms for 25+ applications
- Design and enhance Kubernetes and OpenShift-based platforms across on-prem and public cloud, including lifecycle management, security, configuration, observability, and diagnostics.
- Provide technical leadership on cloud infrastructure, including network, security, storage, and automation using tools such as Ansible, Terraform, and Azure DevOps.
- Monthly technical release, security fix, upgrades and vulnerability are performed seamlessly
Principal Consultant DevOps, Cloud & SRE
Wipro Limited
London, United Kingdom
02.2013 - 01.2025
- Led distributed teams of 100+ across US, Singapore, Mexico, and India delivering cloud, DevOps, and infrastructure programs for major BFSI clients
- Architected and implemented complex IT infrastructure solutions covering servers, storage, networking, security, cloud, and highly available digital platforms.
- Designed and built CI/CD pipelines using Azure DevOps, Jenkins, Git, Maven, Harness, and related tools to enable automated build, test, and deployment processes.
- Implemented containerization and microservices solutions using Docker and Kubernetes, including migration of monolith applications to microservices.
- Delivered SRE solutions for multi-tenant distributed data systems requiring very high availability, integrating monitoring (Splunk, AppDynamics, Kibana) and incident management.
- Implemented and supported ChatOps proof of concepts to streamline operational communication and deployment workflows.
- Managed stakeholder expectations, governed delivery performance, and supported several large strategic wins through solutioning and technical leadership.
Process Expert
Accenture Services Pvt. Ltd
Chennai
08.2009 - 02.2013
Process Expert
Tata Consultancy Services
10.2008 - 08.2009
Customer Support
MMC Infotech Services (P) Ltd
03.2006 - 10.2008
Education
Higher Secondary - Science
Seventh Day Adventist Higher Secondary
Chennai, India 06.1998 - 06.2000
Bachelor - Information Systems & Management
The New College
Chennai, IndiaSkills
- Cloud Platforms: PCF (Pivotal Cloud Foundry), Microsoft Azure, Amazon Web Services (AWS)
- Containers & Orchestration: Kubernetes, OpenShift, Docker, microservices architecture, containerized workload troubleshooting and optimization
- DevOps & CI/CD: Azure DevOps, Jenkins, Git, Maven, Harness, Lightspeed, RLM, CI/CD pipeline design and implementation of ChatOps
- SRE & Reliability: Site Reliability Engineering (SRE), multi-tenant distributed systems, high availability, observability, incident response, performance optimization
- AI & Machine Learning (Foundational): Training completed in AI and Machine Learning with intermediate knowledge of LLMs and supervised learning
- Automation : Ansible, Terraform, Chef, Python, automation of infrastructure provisioning and configuration
- Cloud Infrastructure: Private, public, and hybrid cloud architecture, cloud security, cloud networking, storage, load balancers, firewalls, virtualization (VMware)
- Middleware & Caching: WebSphere, Apache HTTP Server, Nginx, Tomcat, WebLogic, GemFire, Redis (beginner)
- Monitoring & Logging: Splunk, AppDynamics, Kibana, application and infrastructure observability
- Operating Systems & Network: AIX, Linux, Windows, VMware; networking fundamentals including load balancing, firewall, and general networking concepts
- Program & Delivery Management: Program management, Agile, Scrum, effort and resource planning, business process improvement, stakeholder management, global team leadership
- Tools: ServiceNow, JIRA, Confluence, technical documentation and reporting
Certification
- AWS Certified DevOps Engineer – Professional
- Certified Kubernetes Administrator (CKA)
- Wipro Project Management Certification
SELECTED TECHNICAL HIGHLIGHTS
OpenShift / Kubernetes: Designed and operated OpenShift and Kubernetes clusters for on-prem and cloud, including security, resource management, storage, and monitoring., DevOps: CI/CD pipelines, cloud-native principles, and secure platform operations. Microservices Migration: Supported design, development, deployment, and migration of microservices to Docker and Kubernetes clusters using Spring Boot, Jenkins, and Artifactory., PCF / Cloud Foundry: Installed and configured PCF (BOSH, Ops Manager, Elastic Runtime), created orgs and spaces, allocated quotas, and troubleshot platform issues with vendor engagement (Pivotal)., Caching: Installed and configured GemFire, managed regions, indexing, queries, and deployments; beginner-level experience with Redis.
Timeline
Senior Architect – DevOps / Cloud / SRE
LTIMindtree
02.2025 - 12.2025
Principal Consultant DevOps, Cloud & SRE
Wipro Limited
02.2013 - 01.2025
Process Expert
Accenture Services Pvt. Ltd
08.2009 - 02.2013
Process Expert
Tata Consultancy Services
10.2008 - 08.2009
Customer Support
MMC Infotech Services (P) Ltd
03.2006 - 10.2008
Higher Secondary - Science
Seventh Day Adventist Higher Secondary
06.1998 - 06.2000
Bachelor - Information Systems & Management
The New College