Sr Specialist-Tier 2 Application Support Engineer (Kafka Admin, Event Hub & Azure)

Cricket Wireless LLC.; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Benefits offered by this job

High ownership

Reliability focus

Career growth

Job summary

AT&T is seeking a mid-to-senior production support specialist to provide Tier 2 support across incidents, alerts, environments and C2W events in Hyderabad/Bangalore. You will lead root-cause analysis, trend investigations, and create improvement tickets while collaborating with Tier 1 and client teams.

Hands-on with Confluent Kafka, Azure Event Hub, AKS, Kubernetes, Splunk, Prometheus and SQL is required, along with Python scripting for automation.

Qualifications

• 7+ years in application production/integration or platform support.
• Strong troubleshooting across distributed enterprise apps.
• Operational experience with Confluent Kafka, Azure Event Hub and AKS.

Responsibilities

• Provide Tier 2 support for escalations from Tier 1 across incidents, alerts, environment issues, and C2W events.
• Resolve complex issues and lead root cause analysis, trend investigation, and improvement ticket creation.
• Support iTrack work requests, consulting tickets, and platform-aligned project deliverables.
• Provide additional C2W support when engaged by Tier 1.
• Execute compliance-related support tasks including CCRC, AT&T Cybersecurity Scorecard, and SOX support activities.
• Manage SSL certificate lifecycle support and remediation execution.
• Execute Golden Image and on-prem OS updates for existing VMs.
• Perform application installations and upgrades (outside monitoring/alerting platform scope handled by SRE).
• Support production/non-production setup and operations in Azure and on-prem environments.
• Support new client onboarding and implementation projects for enterprise integration and messaging services.
• Partner with architects and developers to analyze requirements and recommend technical options.
• Gather and publish monthly application and operational metrics.
• Manage ITAP data requirements and ensure operational governance.
• Review and validate Tier 1 SOPs; create and maintain Tier 2/client SOPs.
• Raise Tier 3 tickets for platform/tooling enhancements and monitoring-gap remediation.

Skills

Troubleshooting

Kubernetes (AKS)

Python scripting

SQL / PostgreSQL

Incident coordination

Splunk / Prometheus

Java troubleshooting

React troubleshooting

Spring Boot troubleshooting

Tools

Confluent Kafka

Confluent Cloud

Azure Event Hub

AKS / Kubernetes tooling

Splunk

Grafana / Prometheus

CI/CD tooling

Job description

Key Responsibilities

• Provide Tier 2 support for escalations from Tier 1 across incidents, alerts, environment issues, and C2W events.
• Resolve complex issues and lead root cause analysis, trend investigation, and improvement ticket creation.
• Support iTrack work requests, consulting tickets, and platform-aligned project deliverables.
• Provide additional C2W support when engaged by Tier 1.
• Execute compliance-related support tasks including CCRC, AT&T Cybersecurity Scorecard, and SOX support activities.
• Manage SSL certificate lifecycle support and remediation execution.
• Execute Golden Image and on-prem OS updates for existing VMs.
• Perform application installations and upgrades (outside monitoring/alerting platform scope handled by SRE).
• Support production/non-production setup and operations in Azure and on-prem environments.
• Support new client onboarding and implementation projects for enterprise integration and messaging services.
• Partner with architects and developers to analyze requirements and recommend technical options.
• Gather and publish monthly application and operational metrics.
• Manage ITAP data requirements and ensure operational governance.
• Review and validate Tier 1 SOPs; create and maintain Tier 2/client SOPs.
• Raise Tier 3 tickets for platform/tooling enhancements and monitoring-gap remediation.

Required Qualifications / Must-Have Skills

• 7+ years of experience in application production support, integration support, or platform support.
• Strong troubleshooting skills across distributed enterprise applications.
• Working knowledge of the mandated streaming stack, with operational support experience in Confluent Kafka and Azure Event Hub: Confluent Kafka, Confluent Cloud, Azure Event Hub, AWS-MSK, and Apache Flink.
• Practical knowledge of IBM Sterling Integrator.
• Hands-on operational experience with Kubernetes, especially Azure Kubernetes Service (AKS), in incident response and platform support.
• Working experience with Splunk and Prometheus/Grafana for diagnostics and observability.
• Python scripting capability for support automation, operational checks, and repetitive task reduction.
• Familiarity with Java, React, and Spring Boot based applications for troubleshooting and production issue triage (not an application development role).
• Solid SQL/Postgres query skills for production support analysis.
• Experience supporting CI/CD release operations.
• Strong stakeholder communication and incident coordination skills.

Good-to-Have / Nice-to-Have

• Azure/Kubernetes/ITSM certifications.

Experience Level Mid to Senior (typically 7 to 10 years) Location / Work Mode Onsite (Hyderabad / Bangalore)

Weekly Hours: 40 Time Type: Regular Location: IND:AP:Hyderabad / Argus Bldg 4f & 5f, Sattva, Knowledge City- Adm: Argus Building, Sattva, Knowledge City, IND:KA:Bangalore / Intl Tech Park, Navigator Bldg, Whitefield Road: Intl Tech Park, Navigator Bldg:Intl Tech Park, Navigator Bldg AT&T and its subsidiaries are committed to equal employment opportunity.

All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry, age, sex, sexual orientation, gender, gender identity, gender expression, physical disability, mental disability, pregnancy, medical condition, genetic information, marital status, citizenship status, military status, veteran status or any other characteristic protected by federal, state, or local laws. In addition, AT&T will provide reasonable accommodations to qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

What We Offer

• High-ownership role across mission-critical applications and client-facing operations.
• Opportunity to influence reliability, compliance readiness, and service quality.
• Growth path into advanced reliability engineering and platform ownership roles.

We are pioneers of making connections and have been ever since Alexander Graham Bell invented the telephone and founded our company. That was nearly 150 years ago, and we haven’t stopped innovating since. At our core, we help bring families, communities, and businesses together with the products and services they need to thrive every day. From the widespread and growing availability of 5G and Fiber to working on things we once only dreamed of—at AT&T, we create connections that change the world.