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Rajat Jangra

@rajatjangra

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I build secure, reliable cloud and big data platforms at scale.

India

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What I'm looking for

I'm looking to move into a Data Platform Architect role where I can drive platform strategy, cloud-native modernization, secure data governance, and reliable large-scale data infrastructure.

I currently manage Hadoop and Kafka clusters on AWS at Cargill, supporting 50+ TB of daily data workloads with 99.9% availability.

I automate platform provisioning with Terraform and Chef, cutting deployment time by about 40%, and use Grafana and Prometheus to reduce incident resolution time by 35%.

Previously at Cloudera, I configured and supported enterprise HDP, CDH, and CDP clusters for Fortune 500 customers, advising on migrations, security, governance, and performance across 100+ node environments.

My background also includes SRE at OLA, Azure big data platform engineering at DXC Technology, and DevOps automation at phData Solutions. I'm focused on cloud-native modernization, secure data platforms, and progressing into Data Platform Architecture.

Experience

Work history, roles, and key accomplishments

Current

Data Platform Engineer

Current

Cargill

Nov 2024 - Present (1 year 10 months)

Manage and maintain scalable Hadoop and Kafka clusters on AWS serving 50+ TB of daily data workloads, ensuring 99.9% platform availability and cost efficiency. Automate infrastructure provisioning and configuration using Terraform and Chef, reducing deployment time by ~40% and enabling fully reproducible, auditable deployments.

Hadoop Kafka AWS Terraform Chef Grafana Prometheus CDSW Git Vela CI CD

Senior Big Data Operations Engineer

Cloudera

Aug 2022 - Nov 2024 (2 years 3 months)

Led setup, configuration, and technical support of enterprise Hadoop clusters across HDP, CDH, and CDP distributions for Fortune 500 customers globally. Implemented cluster security using Active Directory/LDAP, MIT Kerberos, Ranger, and Knox, ensuring compliance with enterprise security and data governance standards.

Hadoop HDP CDH CDP Cloudera Manager Ambari Active Directory LDAP MIT Kerberos Apache Ranger Apache Knox Performance Optimization Data Governance Security Compliance Migration Strategies Technical Support

Production Engineer (SRE)

OLA (ANI Technologies)

Oct 2021 - Aug 2022 (10 months)

Defined and tracked SLOs and error budgets for critical big data applications, and automated infrastructure upgrades reducing manual intervention by 50%. Collaborated with teams to architect SLO frameworks and developed internal tooling to improve operational visibility.

SRE SLOs Error Budgets Hadoop Hive Kafka HBase Automation Monitoring Incident Management Big Data Infrastructure

Big Data Platform Engineer

DXC Technology

Sep 2020 - Oct 2021 (1 year 1 month)

Managed cloud-native Azure Big Data PaaS services for Ahold USA, including HDInsight, Data Factory, Data Lake Analytics, Databricks, Stream Analytics, and EventHub. Configured Hadoop clusters and Databricks services with right-sized compute, improving cost efficiency and processing performance.

Azure HDInsight Data Factory Data Lake Analytics Databricks Stream Analytics Event Hub Hadoop Ranger ADLS Azure Active Directory Azure Key Vault

Associate DevOps Engineer

phData

Aug 2019 - Sep 2020 (1 year 1 month)

Automated routine operational tasks in production and test environments using Ansible, including Cloudera
Manager and CDH backup automation.
• Configured dynamic resource allocation in Cloudera Manager and upgraded CM/CDH to latest versions; secured Hadoop clusters using Kerberos authentication.
• Troubleshot servers and operating systems, including installation, configuration

AWS Azure Cloudera Spark