Sarfaraz Ahmed| IT Manager

Roles & Responsibilities:

· Managed and led high-performing team of 21 engineers across two global regions in 24×7 support model.

· Oversaw resource management, recruitment, onboarding, and training programs to build scalable workforce.

· Designed and optimized shift schedules to ensure smooth execution of operations and SLA compliance.

· Acted as Onsite Coordinator to facilitate collaboration among distributed teams, customers, and stakeholders

· Directed end-to-end implementation and automation of Big Data platforms, Cloud services, and DevOps pipelines.

· Monitored SLA adherence, minimizing downtime and enhancing service reliability through proactive measures.

· Delivered cloud migration initiatives, improving system scalability, availability, and performance metrics.

· Championed process automation and AIOps to reduce manual intervention and improve operational efficiency.

·Led IT infrastructure projects to enhance system performance and reliability.

·Managed cross-functional teams to implement software solutions efficiently.

Developed IT policies to ensure data security and compliance standards.

·Provided technical support and training to staff on new systems.

·Evaluated emerging technologies for potential adoption within the organization.

·Facilitated change management processes during system upgrades and migrations.

·Developed and implemented IT policies and procedures to ensure compliance with industry standards.

·Monitored system performance and identified areas for improvement.

·Maintained strong knowledge of applicable regulations to guarantee that designs, operations and IT systems met those requirements.

Roles & Responsibilities:

· Lead a team of Hadoop administrators to manage enterprise-scale Big Data platforms ensuring high availability, scalability and performance.

· Performed Ambari, HDP, and HDF upgrades, patch management, and continuous platform improvements.

· Administered and optimized Hadoop, Kafka, and Snowflake solutions, ensuring seamless integration with business-critical applications.

· Managed capacity planning, hardware provisioning, and AWS instance resizing to meet performance and cost objectives.

· Monitored clusters, performed backup & recovery, security compliance, and RCA-based issue resolution.

· Implemented automation scripts to streamline monitoring, alerts, and administrative tasks.

· Collaborated with application and infrastructure teams to deploy new environments, integrate ElasticSearch/Kibana, and provide analytics through Spark MLlib.

· Delivered knowledge transfer, documentation and mentoring for junior administrators.

·Led team in implementing efficient workflows and best practices.

·Coordinated cross-functional meetings to enhance project collaboration.

·Mentored junior staff on industry standards and operational procedures.

·Developed training materials to improve team knowledge and skills.

·Monitored project timelines to ensure adherence to schedules.

·Streamlined communication channels among team members and departments.

·Evaluated performance metrics to identify areas for improvement.

·Facilitated problem-solving sessions to address operational challenges.

·Provided leadership and guidance to team members, ensuring that tasks were completed on time and to a high standard.

·Delegated daily tasks to team members to optimize group productivity.

Roles & Responsibilities:

· Directed the administration of Hadoop clusters (HDP/HDF), including patching, version upgrades, and high availability configuration.

· Managed user provisioning, quotas, security (Kerberos, ACLs), and Ambari-based service administration.

· Conducted cluster performance tuning, health checks, disk management, and log monitoring.

· Ensured smooth data migrations using DistCp and NiFi (RDS → Hadoop clusters).

· Coordinated with global teams for incident resolution, RCA documentation and service provider escalations.

· Integrated Kafka and Spark on HDFS for data ingestion and processing.

· Designed backup & disaster recovery (BDR) strategies and tested failover mechanisms.

Roles & Responsibilities:

· Installed, configured, and managed multi-node Hadoop clusters using Ambari and Cloudera distributions.

· Upgraded and maintained Hadoop services, ensuring cluster reliability, scalability and data consistency.

· Configured and managed core-site.xml, hdfs-site.xml and mapred-site.xml for custom business requirements.

· Conducted data migrations across clusters and maintained secure environments via Kerberos and Zookeeper coordination.

· Administered Kafka, Hive, HBase, NiFi, and Spark, enabling seamless data flow pipelines.

· Performed performance tuning for Hadoop jobs, disk utilization monitoring, and cluster health reviews.

· Worked closely with application teams for patch planning, version upgrades and troubleshooting.

Roles & Responsibilities:

· Installed and deployed Hortonworks Data Platform on multi-node clusters through Ambari.

· Managed commissioning/decommissioning of nodes, user provisioning, and quota management.

· Configured Kafka, Spark, Cassandra, and HBase with Hadoop to support IoT and banking sector analytics use cases.

· Implemented backup, disaster recovery, and security policies to safeguard enterprise data.

· Integrated Elasticsearch and Kibana with Hadoop for log analytics and reporting.

· Handled Linux administration tasks (user/group management, permissions, package installation using YUM/RPM).

· Defined data retention policies and performed cluster monitoring, issue resolution and proactive capacity planning.

Documented operational procedures, knowledge base articles, and SOPs for future use