Mridul Dey profile photo 1 on Tal

Mridul Dey

Associate at Goldman Sachs

Bengaluru

5+ years of work experience

Goldman Sachs
Nov 202511 mosPresent

On-site

Goldman Sachs
Jul 20232 yrs 5 mosNov 2025

Hybrid

Part of the Compliance Engineering division. Responsibilities: • Redesigned the HDFS purge pipeline by converting a single-threaded Java process into a distributed MapReduce job, resolving memory bottlenecks and improving runtime efficiency by ~60%, enabling seamless handling of large-scale data deletion across clusters. • Migrated a long-running (30+ hour) HDFS monitoring job to a highly optimized MapReduce process, bringing down processing time to under 20 minutes for petabyte-scale data scans, improving performance visibility and operational reliability. • Developed a cold data archival pipeline using AWS Glacier to offload legacy business-critical data from Hadoop clusters, reducing storage costs to ~$15K/year and deferring multi-million dollar infra expansions. Built automation around archival/retrieval based on user requests and audit needs. • Migrated over 100 million records from HBase to PostgreSQL with zero data loss. Developed backend services to replicate legacy behavior while improving query performance and maintainability. • Created React-based dashboards for internal monitoring and reporting, enabling senior management to easily visualize system health and data KPIs.
Goldman Sachs
Jan 20236 mosJun 2023

Bengaluru, Karnataka, India

I was again part of the Global Datacenter Development team. Responsibilities: • Extended the existing service to support a broader range of asset classes by designing modular and reusable workflows. • Developed additional APIs tailored to new asset types, enhancing the platform’s flexibility and scalability.
Goldman Sachs
May 20223 mosJul 2022

Bengaluru, Karnataka, India

I was part of the Global Datacenter Development team. Responsibilities: • Designed the workflow that automates an end to end application and also integrated it as a service for end users. • Created the dashboard for this service where users can create, view, track and perform other operations on their orders.
Micro
Mar 20223 mosMay 2022

Remote

• I worked on the landing page of the web application. • I also worked on building the backend APIs for authentication and registration functionalities.
Developer Student Clubs BIT Mesra
Aug 20218 mosMar 2022

Ranchi, Jharkhand, India

Developer Student Clubs BIT Mesra
Nov 202010 mosAug 2021

Ranchi, Jharkhand, India

Era Swap Technologies
Jul 20206 mosDec 2020

Remote

I worked on building decentralized-applications: • RentingDapp - a decentralized app for renting and leasing purposes, for storing transactions so that dispute can be easily managed and middlemen charges be cut down. • BookingDapp - a decentralized event booking app, where event managers can list and cancel upcoming events and users can book tickets for events.

Mridul’s AI Stack

claude
claude
github copilot
github copilot
Devin
Devin

Education

Birla Institute of Technology, Mesra

Bachelor of Technology - BTech, CSE

Birla Institute of Technology, Mesra

20194 yrs2023
Hem Sheela Model School - India

CBSE, PCM and Computer Science

Hem Sheela Model School - India

20172 yrs2019

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Headline

Associate at Goldman Sachs

About

I'm a software engineer with strong experience across backend, frontend, and big data systems. I work extensively with Java (Spring Boot) for building scalable services and React for developing intuitive, data-rich UIs. A significant part of my work involves Hadoop-based distributed systems—designing and optimizing large-scale data pipelines, and improving performance across high-volume MapReduce workflows. I've also built dashboards that enhance visibility into critical infrastructure and support smarter operational decisions. I focus on writing clean, efficient code and delivering solutions that are reliable, user-centric, and built to scale.

Location

Bengaluru

AI stack

claude

github copilot

Devin

Work experience

Associate at Goldman Sachs, Nov 2025 - Present · 11 mos, On-site

Analyst at Goldman Sachs, Jul 2023 - Nov 2025 · 2 yrs 5 mos, Hybrid, Part of the Compliance Engineering division. Responsibilities: • Redesigned the HDFS purge pipeline by converting a single-threaded Java process into a distributed MapReduce job, resolving memory bottlenecks and improving runtime efficiency by ~60%, enabling seamless handling of large-scale data deletion across clusters. • Migrated a long-running (30+ hour) HDFS monitoring job to a highly optimized MapReduce process, bringing down processing time to under 20 minutes for petabyte-scale data scans, improving performance visibility and operational reliability. • Developed a cold data archival pipeline using AWS Glacier to offload legacy business-critical data from Hadoop clusters, reducing storage costs to ~$15K/year and deferring multi-million dollar infra expansions. Built automation around archival/retrieval based on user requests and audit needs. • Migrated over 100 million records from HBase to PostgreSQL with zero data loss. Developed backend services to replicate legacy behavior while improving query performance and maintainability. • Created React-based dashboards for internal monitoring and reporting, enabling senior management to easily visualize system health and data KPIs.

Seasonal Intern at Goldman Sachs, Jan 2023 - Jun 2023 · 6 mos, Bengaluru, Karnataka, India, I was again part of the Global Datacenter Development team. Responsibilities: • Extended the existing service to support a broader range of asset classes by designing modular and reusable workflows. • Developed additional APIs tailored to new asset types, enhancing the platform’s flexibility and scalability.

Summer Analyst at Goldman Sachs, May 2022 - Jul 2022 · 3 mos, Bengaluru, Karnataka, India, I was part of the Global Datacenter Development team. Responsibilities: • Designed the workflow that automates an end to end application and also integrated it as a service for end users. • Created the dashboard for this service where users can create, view, track and perform other operations on their orders.

Engineering Intern at Micro, Mar 2022 - May 2022 · 3 mos, Remote, • I worked on the landing page of the web application. • I also worked on building the backend APIs for authentication and registration functionalities.

Associate Management & CP Lead at Developer Student Clubs BIT Mesra, Aug 2021 - Mar 2022 · 8 mos, Ranchi, Jharkhand, India

Administrative & Management Team at Developer Student Clubs BIT Mesra, Nov 2020 - Aug 2021 · 10 mos, Ranchi, Jharkhand, India

Blockchain Developer Intern at Era Swap Technologies, Jul 2020 - Dec 2020 · 6 mos, Remote, I worked on building decentralized-applications: • RentingDapp - a decentralized app for renting and leasing purposes, for storing transactions so that dispute can be easily managed and middlemen charges be cut down. • BookingDapp - a decentralized event booking app, where event managers can list and cancel upcoming events and users can book tickets for events.

Education

Bachelor of Technology - BTech, CSE, Birla Institute of Technology, Mesra

CBSE, PCM and Computer Science, Hem Sheela Model School - India