Sep 2020 – Jun 2021 · 9 mos · Bengaluru, Karnataka, India

• Leading initiatives of the machine learning platform for data labelling to ensure Data democratization, Trust and Safety and Physical Security of Stores and Inventory management

Jul 2018 – Sep 2020 · 2 yrs 2 mos · Mumbai Area, India

• Built and launched Jio’s first automated trust platform for abuse detection, protecting millions of telecom users from fraud and intrusion.
• Oversaw security analytics for anomaly, intrusion and vulnerability monitoring across telecom and hydrocarbon verticals.
• Worked close with customer support to run quantitative analysis on user behaviour metrics and present goals to executives
• Gathered feedback to improve developer experience of internal safety tooling, boosting trust platform adoption by 40 %
• Managed multi‑disciplinary team of managers, data scientists, analysts, data engineers and security engineers.

Jan 2018 – Jun 2018 · 5 mos · San Francisco Bay Area / Bangalore

• As a full stack consultant data scientist/machine learning engineer, I created their Hiring Automation, HR and Payment Analytics tool from scratch.
• Helped them create a nudge network platform that used behavioral analytics for recruiters and candidates and helped generate smart decisions
• Lead data scientists and engineers to create a platform that can analyze, diagnose and predict Learning that would be rendered to Candidates to bridge Knowledge Gaps

Jan 2017 – Jan 2018 · 1 yr · London, United Kingdom · Remote

May 2015 – Apr 2018 · 2 yrs 11 mos · San Francisco Bay Area

• Responsible for implementing new methods of threat and abuse detection, analysis and response to targeted attacks, zero-day attacks, and insider threats in enterprise security (mainly financial orgs )
• Develop and implement threat detection models and analytics use cases for a security analytics platform built on Big Data technologies

Mar 2015 – May 2015 · 2 mos · San Francisco, California, United States

• Trust Lab
• Building cloud-based security solutions using big data, machine learning and pattern discovery techniques.
• Lead several product critical projects.
• Developed multiple machine learning models for malicious Web contents detection
• Use computer, statistical and analytical skills to perform domain-driven data mining
• Collaborate with Trust Team Lead Engineers on key projects including intrusion, detection and vulnerability assessments

Feb 2013 – Mar 2015 · 2 yrs 1 mo · San Francisco Bay Area

• First Data Scientist for Visa Security Analytics Team(VSA). (security engineering, ETL,model deployment)
• Implemented security automation for SOC analyst for Global Information Security Team, SIEM automation to reduce time in security investigations
• Responsible for designing algorithms, building models and developing data analytics, data mining and reporting solutions that scales across massive amounts of unstructured and structured data
• Extracting and organizing information collected using mathematical or statistical methods to accomplish specific goals such as detection of intrusions, advanced persistent threats, and targeted attacks and anomaly detection
• Interface with the ETL /Hadoop/Cyber-security teams for data extraction and preparation
• Participate in design, architecture, and operations of security analytics platform and services
• See - http://www.cloudera.com/about-cloudera/press-center/press-releases/2015-09-30-cloudera-announces-2015-data-impact-award-winners.html

Oct 2011 – Feb 2013 · 1 yr 4 mos · San Diego, California, United States

• Designing optimization schemes for handling big data with existing web security infrastructures at Websense.
• Lead data research and innovation of web classification strategies.
• Implement web classification analytics in Websense products.
• Constantly evaluate web classification tools and infrastructure and work to refine them.

Aug 2011 – Oct 2011 · 2 mos · Birmingham, Alabama Area

• MARKETING SUPPORT/SERVICES - CONSUMER INSIGHT & ANALYTICS : Design systems to mechanize reports pulled from Teradata by storing SQL information in Oracle. Building Oracle database to store nationwide U-verse usage

May 2011 – Aug 2011 · 3 mos

• Spam Analysis from Spam Datamine

Aug 2009 – Aug 2011 · 2 yrs

• Developing clustering Algorithm to group Similar Spam Campaigns
• Classification of malicious URLS
• Publications
• 1.Soma Halder, Richa Tiwari, Alan Sprague , “Identifying Features to Improve Real Time Spam Clustering and Domain Blacklisting”, in proceedings of 50th ACM SE, 2012
• 2.Soma Halder, Richa Tiwari, Alan Sprague, “Information Extraction from Spam Emails using Stylistic and Semantic Features to Identify Spammers”, in proceedings of 12th IEEE International Conference on Information Reuse and Integration, 2011
• 3.Soma Halder, Richa Tiwari, “Identifying Similar Spam Campaigns using Natural Language Processing”, in proceedings of Grace Hopper Celebration of Women in Computing Conference, 2011(Poster)
• 4.Soma Halder, Chun Wei and Alan Sprague, “Overview of Existing Methods of Spam Mining and Potential Usefulness of Sender’s Name as Parameter for Fuzzy String Matching”, in proceedings of International Conference on the Advances of Computer Science, 2010
• 5.Soma Halder, “Tracking Spammers with Sender’s Name and Domain name”, in proceedings of ACM Mid Southeast Conference, 2010(2nd Prize)
• 6. Soma Halder, "Mosaicing of Documents and Images",in proceedings of ACM Mid Southeast Conference, 2009

Aug 2009 – Aug 2011 · 2 yrs

• Teaching ,Assisting Labs and Grading Courses at Undergraduate and Graduate Levels
• Data Mining, Database, Object Oriented Programming, Networking