HARSH KUMAR
Senior Data Scientist @ Gojek
Former Sr. Manager, American Express
MBA, IIM Indore
B.Tech, IIT Guwahati
Passed Level III of CFA Program
I am happy to see you here. Please take a moment to explore my site, where you’ll find details on my background, experience, skills and more. To learn more or connect on an opportunity, don’t hesitate to reach out.
BIO
I have been working in the field of machine learning and advanced analytics for more than 8 years. During this time, I have created data-driven solutions for targeted marketing, business expansion, customer acquisition and retention. This includes building several complex machine learning models using techniques like XGBoost, kNN and Random Forest. Apart from machine learning, I am highly proficient in languages like Python and SQL. I have also led high performing teams for two years including recruiting, coaching and performance evaluation. My work involves partnering with colleagues across the globe to deliver data backed recommendations for decision makers.
PROFESSIONAL EXPERIENCE
Career & Background
May 2021 - Present
SENIOR DATA SCIENTIST, GOJEK
  • Deployed machine learning models in production and compared performance with existing models using A/B switchback experiments
  • Developed monitoring and alerts systems to keep track of health of production models using tools like BigQuery, Data Studios, airflow and python
  • Evaluated impact of product rollout by designing randomized experiments, performing hypothesis testing and showcasing results to stakeholders
  • Currently serving as the data science representative in marketplace architecture group, responsible for good design & architecture of tech products
Feb 2021 - Apr 2021
SENIOR MANAGER, AMERICAN EXPRESS
  • Lead a young team of 4 analysts, responsible for US Merchant Marketing Analytics
Mar 2019 - Jan 2021
MANAGER, AMERICAN EXPRESS
  • Supporting merchant marketing through advanced analytics and machine learning with the aim of increasing the perception of coverage and warm acceptance
  • Created models for predicting spend decline for merchants and providing appropriate marketing treatment
  • Built a prioritization model to identify the right population to contact using high-touch channels like telephone calls and visits
Feb 2018 – Feb 2019
ASSISTANT MANAGER, AMERICAN EXPRESS
  • Managed a team of analysts for B-School Competition with the objective of recruiting the best talent for Amex
  • Independently managed technology vendor relationship and ensured end-to-end development, testing & usage of Campus Website/App
  • Mentored and guided new joinees ensuring on-time error free delivery of their initial projects
  • Partnered global team of consultants and delivered strategic insights for large Amex Merchants
Apr 2016 – Jan 2018
BUSINESS ANALYST, AMERICAN EXPRESS
  • Build Machine Learning Models to predict specific customer life events and identify customers who are most likely to respond to marketing offers - GBM, Sequence Mining, Collaborative Filtering
  • Provide custom consulting to clients across industries using a mix of advanced analytics & business knowledge
  • Deliver solutions for geographical expansion, purchase cycle, customer acquisition, market analysis and customer profiling among others
Jul 2011 - Apr 2012
SOFTWARE ENGINNER, HEWLETT PACKARD
  • Designed & implemented highly scalable & flexible test harness framework
  • Optimized test harness firmware to run from a small memory, reducing the total testing time
  • Studied the build process for firmware & investigated possibilities of reducing boot time
MY SKILLS
PROGRAMMING
LANGUAGES
Python (Pandas, Numpy, Sklearn)
SQL (Big Query, Postgres, Hive)
Go
SAS
Pyspark
MACHINE
LEARNING
XGBoost
GBM, Light GBM
Random Forest
kNN
Recommender System
Sequence Mining
TOOLS
Jupyter Notebook
Google Cloud Platform
Git
MLFlow
dbt
Scikit-Learn
Tensorflow
Google Data Studios
Tableau
UNIX Shell Scripting
EDUCATION
Jul 2014 - Mar 2016
IIM INDORE
Post-Graduate Program in Management
  • Rank 4 in a batch of 447 PGP students of 2014-16 batch
  • Senior Member, Equit-I, Finance Club, IIM Indore
  • Coordinator, Finance Lab, IIM Indore
  • Member, Finance Vertical, i5 Summit, IIM Indore
Jul 2007 - Apr 2011
IIT GUWAHATI
Bachelor of Technology (B.Tech)
  • Electronics and Communication Engineering
  • Promoted to Electronics & Communication from Mechanical Engineering on basis of merit
  • Awarded Merit-cum-Means scholarship with full tuition fee & monthly stipend
Get in touch!!
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