Tushar Kumar

Building Managed Data Lake@Fivetran | Data Lakehouse | Data Lakes | Apache Iceberg | Apache Parquet | Delta Lake

Role
Staff Software Engineer at Fivetran
Location
San Francisco, CA, US
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Tushar Kumar

I’m a backend engineer with 5 years of experience, who enjoys working on large-scale distributed systems, especially in the data infrastructure space. At Fivetran, I’ve been involved in building and scaling Fivetran\'s Data Lake offering. One of the most impactful projects I worked on is distributed data write engine that handles terabyte-scale Parquet files and millions of daily write requests reliably and with low latency.I like digging into tough engineering problems, whether that’s reducing cloud costs, improving system performance, or ensuring data consistency across table formats like Delta Lake and Iceberg. I’ve also worked on things like smarter request handling, memory-aware algorithms, and building garbage collection systems.More than anything, I care about building systems that are reliable in production and make a real difference at scale.

Experience

  1. Staff Software Engineer

    Fivetran

    Mar 2026 — Present · San Francisco, CA, US

Education

  • Sikkim Manipal Institute of Technology

    Bachelor of Technology - BTech, Computer Science

    2016 — 2020

  • Delhi Public School, Ruby Park

    High School

    2011 — 2016

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Tushar Kumar — Staff Software Engineer at Fivetran in San Francisco, CA, US | Unifers