Tata Communications is hiring a Customer Service Executive for its Global Network Operations team in Mumbai. The role handles service assurance for the company's submarine cable system Network Operations Centre (NOC), a 24x7 operation with work-from-office only. Responsibilities include maintaining and troubleshooting network tools and equipment, supporting bandwidth delivery for new and existing customers, meeting SLAs, reviewing mail before shift handover, keeping networks, servers and systems security-compliant, preparing accurate daily and weekly reports within tight timelines, and updating tickets and escalating to providers quickly to avoid customer escalations. Eligibility: a graduate with up to about 3 to 4 years of experience (the posting lists 1 to 3 years and 0 to 4 years), problem-solving ability, knowledge of networks and operating systems, and prior technical support experience in high-availability 24x7 environments is preferred. Good spoken and written English is important. Expect rotational shifts.