Karthik Ramasamy

Co-Founder

San Francisco, California, United States17 yrs 10 mos experience
Highly Stable

Key Highlights

  • Expert in machine learning and fraud detection.
  • Proven track record in building security products.
  • Experience in developing SaaS and IoT solutions.
Stackforce AI infers this person is a Fintech and SaaS expert with a strong focus on security and machine learning.

Contact

Skills

Core Skills

Machine LearningDeep LearningSaasIotData AnalysisSecurityReal-time Processing

Other Skills

AWSAlgorithmsAmazon Web Services (AWS)AnalyticsAnomaly DetectionBig DataCloud ComputingComputer SecurityData MiningData ScienceDistributed SystemsDriver Behavior MonitoringFraud InvestigationsHadoopHive

Experience

Oscilar inc

2 roles

Gen AI Advisor

Nov 2023Present · 2 yrs 4 mos

Machine Learning and Fraud Lead

Nov 2021Jan 2024 · 2 yrs 2 mos

  • Working on adversarial machine learning problems for real time fraud detection.

V2k ai

Co-Founder

Nov 2023Present · 2 yrs 4 mos · San Francisco Bay Area · On-site

  • myaidrive.com

Google

Machine Learning Engineer

Aug 2018Nov 2021 · 3 yrs 3 mos · San Francisco Bay Area

  • Google Cloud AI team.
  • Current focus: TensorFlow for Enterprise, and https://tensorboard.dev
  • Past: https://github.com/kubeflow/fairing

Uber advanced technologies group

3 roles

Deep Learning Engineer

Jan 2018Aug 2018 · 7 mos · San Francisco Bay Area

  • Doing my part in making autonomous vehicles a reality!
  • Working on distributed training and scalable inference.

Data Science Manager - Risk

Promoted

Feb 2017Jan 2018 · 11 mos · San Francisco Bay Area

  • Leading a team of awesome data scientists focused on solving fraud and security problems using machine learning. We apply cutting edge deep learning techniques like sequence modeling to model users' behavior. Dealing with one of the unique and large datasets out there.

Data Science Lead for Account Security Team

Jan 2016Feb 2017 · 1 yr 1 mo · San Francisco Bay Area

  • Keeping your Uber account safe from hackers!

Logbase inc.

Cofounder

Sep 2014Jan 2016 · 1 yr 4 mos · San Francisco Bay Area

  • Built a SaaS product for anomaly detection on KPIs and other business metrics.
  • Built an IoT device for monitoring driver behavior and crash detection in taxis.
  • Built a real-time in-memory columnar analytic engine for log analysis that is capable of querying several GBs of in-memory data per second per core.
  • Designed and built a columnar in-memory format for JOSN that is several times faster and compressible than the standard row format.

Linkedin

5 roles

Staff Data Scientist

Promoted

Mar 2013Sep 2014 · 1 yr 6 mos

  • Responsible for keeping the LinkedIn members safe from account takeovers. Built many data products to defend against humans and bots that are trying to take over members' accounts. While doing that, also made many improvements to reduce friction for members logging into their own account.
  • Architecting an internal tool that needs to store and index large volumes of tracking data.
  • PS: It's hard to give details when you work on security products :)

Senior Data Scientist

Aug 2011Feb 2013 · 1 yr 6 mos

  • Built IP/ISP/Email reputation based on LinkedIn and external data.
  • Developed new ways to protect LinkedIn accounts from being hacked.
  • Responsible for analyzing performance and usage of security products by LinkedIn members.
  • Additionally taking care of security incident response and training new members of the security team on LinkedIn data infrastructure and incident response.

Data Scientist

Jul 2010Jul 2011 · 1 yr

  • Handled many security incidents, some involving huge botnets. Built login challenges, like captcha, to protect account take overs. Performed product analytics for many security products. Developed LinkedIn's first real time monitoring system based on Kafka that handle up to half a million events per node.

Hacker

Promoted

May 2010Sep 2014 · 4 yrs 4 mos

  • Hacking the most creative and controversial hacks at LinkedIn!
  • Hackday Projects:
  • People You Should Know,
  • BugIn (Best Production Tool),
  • Jobs For Vets,
  • InCorrect (Best Friction Reduction),
  • inFair,
  • IN or OUT (Most Popular),
  • Klunk (Best Internal Tool),
  • Are you INterested? (Most Controversial),
  • FollowIn,
  • Holy Grail (Most Controversial Project)

Data Analytics Intern

May 2010Jul 2010 · 2 mos

  • In short time, learnt LinkedIn's big data infrastructure and built first profile scoring model at LinkedIn to distinguish between fake and real members. Additionally built a model to detect profanity in profiles.

Columbia university

2 roles

Teaching Assistant

Jan 2009Dec 2009 · 11 mos

  • Fall 2009: Analysis of Algorithms-I, Instructor: Prof. Clifford Stein
  • Spring 2009: Data Structures in Java, Instructor: Prof. Alexander Pasik

Research Assistant

Jan 2009May 2009 · 4 mos

  • Intrusion Detection Systems Lab:
  • Designed a distributed system for sharing of alerts and traffic models among collaborating sites while preserving.
  • Developed correlation techniques to correlate IP alerts while preserving privacy using bloom filters
  • Involved in developing a new feedback technique for use in anomaly detection sensors that uses partial labels of the training data
  • Designed a web-crawler for mining error pages in a website

Analog devices

Design Engineer

Jun 2007Jun 2008 · 1 yr

  • Involved in RTL synthesis for Sharc processor and optimizing architecture for the target speed. Additionally, developed tests for media controller for the Sharc processor.

Hewlett-packard

Intern

Jan 2007Apr 2007 · 3 mos

  • Built a source code search engine for HP's internal repository that is aimed to facilitate code reusability. Developed algorithms to parse structure in source codes of different programming languages and built an intuitive web application for end users.

Education

Columbia University

MS — Computer Science

Jan 2008Jan 2009

PSG College of Technology

BE — Electrical and Electronics

Jan 2002Jan 2007

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