---
title: "Harmanjeet Singh - Engineering Manager in Delhi | Tal"
description: "Meet Harmanjeet Singh, Engineering Manager @ Paytm | Ex-Rakuten, Ex-TimesInternet based in Delhi."
image: "https://tal.club/meet/harmanjeet/share-image"
---

# Harmanjeet Singh on Tal

## Headline

Engineering Manager @ Paytm \| Ex\-Rakuten, Ex\-TimesInternet

## About

Data engineer/plumber, work around building pipelines for big data and machine learning projects\. e^\(days\-today\)

## Location

Delhi

## Work experience

Engineering Manager at Paytm, Apr 2025 \- Present · 1 yr 5 mos, Noida, Uttar Pradesh, India, • Lead strategy & execution for high\-scale merchant risk monitoring and fraud detection\. • Built an anomaly detection framework utilizing statistical count analysis and data discrepancy validation\. • Architected MCP Server for dataset discovery and code generation\. • Engineered Spark MCP Server for log analysis, scaling & cost optimization\. • Fostered adoption of modern data engineering paradigms and AI\-powered methods\.

Senior Technical Lead at Paytm, Apr 2023 \- Mar 2025 · 2 yrs, Noida, Uttar Pradesh, India, • Designed and developed a rule engine in GoLang with monitoring/logging\. • Built real\-time ingestion framework in Flink with customizable sources & sinks\. • Drove Spark optimization, reducing cluster runtime and improving SLA adherence\. • Led migration of complex workloads to AWS, ensuring resilience & cost efficiency\. • Mentored engineers, improving workflows via AI\-assisted testing and reviews\.

Technical Lead at Paytm, Sep 2021 \- Mar 2023 · 1 yr 7 mos, Noida, Uttar Pradesh, India, • Built pipelines for Transactional and Merchant Settlement Reports\. • Built ODMR \(On Demand Merchant Request\) streaming framework to provide historical settlement reports to merchants in near real\-time\. • Migrated Paytm projects from Alibaba Cloud & On\-premise cluster to AWS\. • Worked on cost and performance optimization of spark applications across projects\.

Software Engineer 2 at Rakuten, Dec 2019 \- Sep 2021 · 1 yr 10 mos, Bengaluru Area, India, • Built spark streaming pipeline to ingest Kafka events from Viki \(OTT platform\) and provide real\-time analytics\. • Built Sleeper Cell Detection by analyzing time series data of cell towers to ensure zero downtime\. Performed spark & hive optimization to bring job completion time to 15 minutes from an hour\. And helped improve model accuracy from 85% to 95%\. • Developed MNO Data Insight pipeline to enrich data for customer segmentation and targeted ad campaigning\. Data involve transactional data from the Rakuten e\-commerce platform\. • Built dashboard for data utilization of hadoop resources by analyzing ranger logs for auditing\. • Setup data quality control pipeline to ensure data correctness and freshness for various business units\. Pipeline is built to handle TBs of data and run every hour\.

Senior Data Engineer at CSS Corp, Oct 2018 \- Dec 2019 · 1 yr 3 mos, Bengaluru, Karnataka, India, • Discovering data acquisition opportunities and building web crawling processes to scrap data from social media sites and various forums\. • Worked on chatbot POC for Hindustan Unilever in Google DialogFlow, REST services and NodeJS\. • Built tableau dashboard for data visualization and analytics\.

SDE 2 at Times Internet, Jun 2017 \- Oct 2018 · 1 yr 5 mos, Noida Area, India, • Built Recommendation Engine for The Economics Times to provide personalized content to its user\. Ensemble learning technique were used for better predictions\. • Engaged in managing and configuring Hadoop clusters, contributing to the design and development of Data Transformation Framework components for ETL processes, and optimizing Spark job performance while crafting efficient queries for large datasets\.

SDE 1 at Times Internet, Jun 2016 \- Jun 2017 · 1 yr 1 mo, Noida Area, India, Engaged in profiling user data for The Economics Times site\. Built system to retrieve user activity and monitor engagement on the website, and contributed to creating web services for contests and surveys utilizing restful services\.

Summer Intern at Compro Technologies, Jul 2015 \- Aug 2015 · 2 mos, Delhi, India, Quality analyst

## Education

Bachelor of Technology \(B\.Tech\.\), Computer Science, G\.B\.Pant Govt\. Engg\.College

Mata Gujri public School

[View the original profile](https://tal.club/meet/harmanjeet)

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