Arnab Layek

Experience

• 

  Tata Consultancy Services

  Aug 2018 - now

  Client - London Stock Exchange Group (LSEG).Site Reliability Engineer in Unix – (2020 – present) :-• IT Service Management (ITSM) : Incident , Change , Problem Management using ITIL lifecycle.• Alert Monitoring: Monitored and resolved alerts using monitoring tools thus contributing to a 20% reduction in incident response time.• Automation: User account creation, log cleanup, and server migration checks thus improving operational efficiency.• Service Recovery Management : Led technical recovery calls, ensuring minimal downtime and service restoration within SLA during major incidents in shifts as well as in on-calls.• Hardware Collaboration : Reduced hardware issue resolution time by collaborating effectively with Data-Centre Engineers and Vendors.• Documentation: Streamlined operations and improved team efficiency by developing and maintaining comprehensive SOPs and incident reports.• Deployment and Releases : Working on the deployments along with monthly or quarterly releases by co-ordinating with the developers.• Capacity Planning & Reliability Testing: Conducted capacity planning and DR failover tests, improving system reliability and aligning with BCP.Project Responsibilities :-• Hardware obsolescence/ OS Upgradation : Led hardware obsolescence and OS upgrade projects with zero downtime.• Migrations : Executed on-prem server migration projects to new environments and Lift and Shift migration of physical Unix boxes with less impact.• Other Projects : Conducted Network Isolation Tests and Disaster Recovery Failover by enhancing system reliability. Show less

  • Linux and AWS Site Reliability Engineer

    Sept 2020 - now

  • System Administrator

    Aug 2018 - Aug 2020