# Abhishek Kumar > Staff Software Engineer at Cloudera | Apache Ranger PMC Member Location: San Jose, California, United States Profile: https://flows.cv/abhishekkumar1 As a Senior Software Engineer at Cloudera with over 7 years of experience, I specialize in distributed systems and software development, with a strong focus on open-source contributions. My recent work includes leading the implementation of cloud-native fine-grained authorization for Cloudera AI Inference service and building high-performance testing frameworks using Apache JMeter. As an Apache Ranger PMC Member, I actively contribute to the project's development, with over 100 commits, and have served as Release Manager for multiple versions, coordinating community contributions. I am committed to enhancing open-source technologies, evidenced by my contributions to Apache Ranger's Docker infrastructure and REST API development, which have streamlined user operations and improved system performance. ## Work Experience ### Staff Software Engineer @ Cloudera Jan 2026 – Present ### Senior Software Engineer @ Cloudera Jan 2024 – Jan 2026 | Santa Clara, California, United States • Led cross-team initiatives to implement cloud-native fine-grained authorization (Ranger RAZ) for Cloudera AI Inference service. • Built a distributed performance testing framework using Apache JMeter to identify performance bottlenecks in an internal authorizer with Apache Hadoop. The tests measured metrics like Throughput, RPC processing times with and without authorizer enabled for over 10 million read/write operations (with different r/w ratios) on HDFS. • Contributed significant enhancements (20+ Jira tickets) to optimize Ranger docker builds for all Ranger services and improving integration with external systems including Apache Ozone, Impala and Trino in docker. ### Software Engineer II @ Cloudera Jan 2021 – Jan 2024 | Santa Clara, California, United States • Engineering owner for Ranger Usersync service, added new features to enhance functionality while actively addressing customer escalations (resolved 30+ tickets in the last 2 years). • Developed performant REST APIs for user group management ( see RANGER-4230), the new APIs improved user group deletion performance by 133x. ### Apache Ranger PMC Member @ The Apache Software Foundation Jan 2025 – Present • Delivered a talk on 'Unifying Access Control with Governed Data Sharing in Apache Ranger' at the Apache’s annual conference “Community Over Code North America” held in Minneapolis, Minnesota in Sept' 2025. • Served as the Release Manager for Apache Ranger 2.6.0 and 2.7.0 releases, leading end-to-end release activities and coordinating 200+ community contributions while ensuring production readiness. • Open-source maintainer of Apache Ranger’s official docker images on DockerHub and Python client library on PyPI. • Contributed enhancements to optimize Docker support for Ranger services in Docker Compose environment. ### Apache Ranger Committer @ The Apache Software Foundation Jan 2023 – Present • Contributed over 100 commits to the Apache Ranger project on GitHub, enhancing its functionality and performance. • Implemented significant Docker enhancements for Ranger services, improving integration with Apache Ozone, Trino, and Impala. • Developed performant REST APIs for user group management, streamlining operations for users. • Established a CI/CD pipeline in GitHub, enabling comprehensive container-based testing across more than 10 services. ### Graduate Teaching Assistant @ Stony Brook University Jan 2020 – Jan 2020 CSE 315: Database Systems (Jan - May) CSE 357: Statistical Methods for Data Science (Aug - Dec) ### Software Engineer Intern @ Cloudera Jan 2020 – Jan 2020 | Santa Clara, California, United States Contributor to the open source github project Apache Ranger. ### Analyst @ Goldman Sachs Jan 2017 – Jan 2019 | Bengaluru Area, India Market Risk Technology | Risk Platforms | Marcus ### Summer Intern @ Goldman Sachs Jan 2016 – Jan 2016 ## Education ### Master's degree in Computer Science Stony Brook University ### Bachelor's degree in Information Technology Birla Institute of Technology, Mesra ## Contact & Social - LinkedIn: https://linkedin.com/in/kumar21 --- Source: https://flows.cv/abhishekkumar1 JSON Resume: https://flows.cv/abhishekkumar1/resume.json Last updated: 2026-04-12