Sivakumar Sekar
Chennai
Summary
Dynamic AWS DevOps Engineer with a proven track record at Tata Consultancy Services, excelling in Infrastructure as Code and CI/CD automation. Expert in optimizing cloud infrastructure and enhancing system performance, while fostering collaboration across teams. Adept at troubleshooting and implementing robust monitoring solutions, driving significant improvements in operational efficiency.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Application Support Group - Lead
Tata Consultancy Services
Chennai
06.2024 - Current
- Led team of 5 application support engineers, mentoring on troubleshooting for AWS hosted payment application.
- Managed critical incident responses for AWS payment application, ensuring swift resolution of production outages.
- Developed support processes to enhance efficiency and elevate customer satisfaction metrics.
- Collaborated with development and DevOps teams to identify root causes, implementing preventative measures for recurring issues.
- Oversaw monitoring of payment application health, utilising tools for proactive problem resolution.
- Created comprehensive documentation for application support procedures and knowledge base articles.
- Managed infrastructure as code (IaC) using Terraform and CloudFormation to ensure consistency in production environments.
AWS DevOps Engineer
Tata Consultancy Services
Chennai
01.2022 - 06.2024
- Designed and implemented scalable, secure AWS cloud infrastructure using Infrastructure as Code tools Terraform and AWS CloudFormation.
- Automated CI/CD pipelines with GitLab, reducing deployment time and enhancing release frequency.
- Managed containerized applications with Docker and Amazon ECS/EKS, ensuring seamless scaling and deployments.
- Established robust monitoring and logging solutions using AWS CloudWatch and Dynatrace to proactively resolve system issues.
- Maintained Bash scripts for routine operational tasks, significantly decreasing manual effort.
- Configured AWS services including EC2, S3, RDS, Lambda, VPC, IAM, Route 53, and Load Balancers to meet application needs.
- Enforced security best practices with IAM roles, security groups, and network ACLs to ensure compliance and data protection.
- Collaborated with development and operations teams to troubleshoot issues and optimize system performance.
Network Lab Consultant
Tata Consultancy Services
Bracknell
09.2006 - 01.2022
- Maintained and monitored client lab network equipment to ensure optimal performance.
- Built new network lab environment, including services and physical connections.
- Executed periodic software upgrades on Cisco 903s and Alcatel devices, including card installation and removal.
- Procured, installed, and configured hardware to meet project requirements.
- Coordinated with OEMs and stakeholders for support and feature enhancements.
- Managed terminal server operations, including VM creation and user management.
- Conducted regular risk assessments and audits for configuration and security codes during OS upgrades.
- Troubleshot installation issues while verifying processes for new network devices.
Domain Consultant
Tata Consultancy Services
Chennai
10.2014 - 08.2015
- Managed the lab environment for internal customers and worked on Cisco switches, routers, and firewalls - PIX and ASA.
- Testing and coding for the Network Devices Project.
Network Remote Management
Tata Consultancy Services
Chennai
01.2011 - 09.2014
- Collaborated with project team, client, and technical management to architect networks aligned with business needs and service-level requirements.
- Configured ODCs according to client specifications, adhering to internal standards and industry best practices.
- Maintained awareness of evolving business and technology objectives, addressing strategic design requests accordingly.
- Supported project team members by administering technical inquiries and providing graphic design assistance.
- Executed troubleshooting on network designs, resolving all issues prior to ODC production deployment.
- Compiled and distributed documentation to operations team following successful ODC setup.
- Developed and maintained comprehensive network documentation and project reports.
L2 Network & Noc Engineer
Sify Limited
Chennai
03.2008 - 12.2010
- Configured and maintained datacenter and office LAN switches.
- Monitored and troubleshot datacenter switches and routers.
- Ensured customer network connectivity within datacenter environment.
- Managed DHCP, MACPLUS, TACACS, and SAMBA servers.
- Generated bandwidth reports using packet shaping devices.
- Implemented new backbone, base station, and customer links including STM1 and DS3.
- Coordinated with TELCO providers for outages and installations.
- Oversaw change management for network upgrades within Sify network.
Education
BACHELOR OF TECHNOLOGY -
ANNAMALAI UNIVERSITY
01.2006
SECONDARY SCHOOL -
KALAIMAGAL HIGHER SECONDARY SCHOOL
01.2002
Skills
- AWS services (EC2, S3, VPC, Lambda, RDS, DynamoDB, ECS, EKS)
- Infrastructure as code (CloudFormation, Terraform)
- Container orchestration (Docker, Kubernetes)
- Version control (GitLab)
- Continuous integration and delivery (GitLab CI/CD)
- Project management tools (Jira, Confluence)
- Monitoring and logging (CloudWatch, Dynatrace)
- Networking fundamentals (VPC, subnets, security groups)
- Database management (RDS, DynamoDB, MongoDB, Redis)
Certification
- AWS Certified Solutions Architect - Associate, Expired
- Cisco Certified Network Associate (CCNA-640-802), Active
- Cisco Certified Network Professional (CCNP - 642902), Active
- Cisco Certified Network Professional (CCNP - 642813), Active
- Bluecoat Certified ProxySG Administrator, Active
- Bluecoat Certified ProxySG Professional, Active
Timeline
Application Support Group - Lead
Tata Consultancy Services
06.2024 - Current
AWS DevOps Engineer
Tata Consultancy Services
01.2022 - 06.2024
Domain Consultant
Tata Consultancy Services
10.2014 - 08.2015
Network Remote Management
Tata Consultancy Services
01.2011 - 09.2014
L2 Network & Noc Engineer
Sify Limited
03.2008 - 12.2010
Network Lab Consultant
Tata Consultancy Services
09.2006 - 01.2022
BACHELOR OF TECHNOLOGY -
ANNAMALAI UNIVERSITY
SECONDARY SCHOOL -
KALAIMAGAL HIGHER SECONDARY SCHOOL
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