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Sekhar User

@sekharuser2

Senior Kafka Platform Engineer at Wipro supporting Optum/UHC’s production Kafka platform and automating deployments with Ansible.

India

Message

At Wipro Technologies, I administer production Kafka and Zookeeper clusters supporting the Optum (UHC/Optum account) platform. I automate deployments, configuration, and patching across enterprise Linux hosts with Ansible.

I troubleshoot Kafka Connect, SSL/TLS certificate, and Splunk HEC integration issues, and manage Kafka topics, ACLs, and access. I also maintain GitHub Actions workflows and use Hashi Corp Vault for secrets and certificate management.

Previously, I maintained Kafka infrastructure at Flipkart and set up Confluent Kafka clusters and streaming applications at Ashnik Technology Solutions Pvt Ltd. At Capgemini Technology Services India Limited, I administered Kafka for HSBC Bank, including cluster replication, Schema Registry, and Kafka Connect.

Experience

Work history, roles, and key accomplishments

Current

Senior Kafka Platform Engineer

Current

Wipro Technologies

Jun 2025 - Present (1 year 3 months)

Administer and maintain production Kafka and Zookeeper clusters for the Optum/UHC platform, automating deployment and patching with Ansible. Resolve Kafka Connect, SSL/TLS, and Splunk HEC issues, and manage CI/CD workflows and secrets with Vault.

Kafka ZooKeeper Ansible Telegraf Splunk Grafana SSL TLS SASL ACLs HashiCorp Vault GitHub Actions CI CD Kafka Connect API Adaptive Cruise Control JMX Linux

Site Reliability Engineer (SRE)

Flipkart Private Limited

Feb 2024 - Feb 2025 (1 year)

Maintained availability, performance, and security of Kafka infrastructure, including Kafka Connect, Kafka Streams, and broker/ISR/Zookeeper monitoring. Automated deployments via CI/CD and implemented security controls, while integrating Kafka with HVR for CDC replication.

Kafka Kafka Connect API Kafka Streams ZooKeeper Jenkins Ansible Helm Docker Kubernetes SSL TLS ACLs HVR Grafana Kafka Manager CI CD

Sr. Technical Engineer

Ashnik Technology Solutions Pvt Ltd

Jun 2023 - Dec 2023 (6 months)

Set up and managed Confluent Kafka clusters, built real-time data pipelines using Kafka APIs, and integrated Kafka with external systems via Kafka Connect. Implemented event-driven microservices architecture using Kafka and Spring Cloud.

Kafka Confluent Platform Kafka Connect API Kafka Streams MySQL PostgreSQL MongoDB Spring Cloud Microservices High Availability Fault Tolerance

Kafka Administrator

Capgemini Technology Services India Limited

Dec 2021 - May 2023 (1 year 5 months)

Administered the Kafka platform for HSBC, including cluster backup/mirroring, broker and topic sizing, and security. Configured Kafka Mirror Maker for replication, managed Schema Registry, and authored RCA documentation for production incidents.

Kafka Kafka Mirror Maker Schema Registry SASL SSL TLS Kafka Connect API JDBC Terraform Confluent Control Center RCA Incident Management

Support Engineer 2

IBM India Pvt Limited

May 2017 - Dec 2021 (4 years 7 months)

Administered Hadoop/Hive environment, created Hive tables, and wrote queries for large-scale data analysis. Built and scheduled Hadoop batch jobs, maintained UNIX/Linux servers, and automated database workloads using shell scripts.

Hadoop Hive Unix Linux Shell Scripting Cron Informatica ETL Performance Optimization Backup Disaster Recovery

Education

Degrees, certifications, and relevant coursework

St. Mary's College, JNTUH

Bachelor of Technology, Electronics & Communication Engineering

2012 - 2016

Pursued a Bachelor of Technology in Electronics & Communication Engineering from St. Mary's College, JNTUH, Hyderabad, from September 2012 to March 2016.