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Lenny T.

AI Research Engineer with a PhD

New York, United States

Experience

Mar 2025 - May 2025
3 months

AI Research Engineer

RealityLab

  • Developed and implemented evaluation pipelines for a multi-agent framework using Deepeval
  • Ensured performance and reliability of the framework through comprehensive evaluations and testing
Nov 2024 - Apr 2025
6 months
New York, United States

Data Engineer (Consultant)

Allied Testing

  • Developed and maintained ETL pipelines using Python, Pandas, and SQL to process and transform large financial datasets
  • Automated data ingestion, cleaning, and integration workflows for downstream analytics and reporting
  • Collaborated with data analysts and stakeholders to ensure data accuracy, consistency, and timely delivery
  • Optimized SQL queries and data processing logic to improve performance and reliability in production pipelines
Apr 2024 - Jul 2024
4 months
New York, United States

ML Engineer

OriginMedia

  • Created a ML pipeline to determine bid probability curve based on historical data in the context of real-time-bidding
  • Improved bidding efficiency and profitability
Jan 2021 - Dec 2023
3 years
New York, United States

QA Engineer

HavenTech

  • Created LLM evaluation pipeline
  • Ensured quality of LLM by implementing and monitoring evaluation metrics such as answer relevancy, correctness, contextual relevancy, and hallucination, improving cost efficiency of LLM processes
  • Managed QA for OpsAuth team: authentication and authorization, improving customers’ experience by ensuring complete absence of production defects
  • Led QA for social login project, improving and expanding login options to enable customers to log in with Google or FB credentials
  • Led QA for transition to SaaS project, enabling all microservices with appropriate UI to be spun up for individual customers
  • Used Auth0 dashboard to manage complexities of social login
  • Troubleshot and addressed issues with applications in dev/test environments
  • Maintained and expanded automation test framework in Cypress
  • Created and ran functional, end-to-end, and UAT tests
  • Collected and reported test execution metrics using TestRail
  • Created and ran API testing using Postman and Cypress
  • Deployed code with GitLab
  • Used Docker for application deployment and managing environmental settings
  • Used Dozzle to troubleshoot images deployed in Docker
  • Utilized LaunchDarkly to manage feature flags
Jan 2017 - Dec 2021
5 years
New York, United States

QA Engineer

Refinitiv/REDI+

  • Led QA for Spread Trader Tickets project, enabling spreads trading from both Redi+ and FIX tickets
  • Led QA for CAT and OATS reporting project, implementing the transition from OATS to CAT
  • Tested both back-end and front-end
  • Released code with Git, Kubernetes, and Chef
  • Wrote VB code for Spread Trader API regression and performance testing
  • Maintained automation test framework in Selenium
  • Utilized DBeaver SQL client for SQL
Jan 2009 - Dec 2017
9 years
New York, United States

Assistant Professor of Physics

New York University

Jan 2002 - Dec 2009
8 years
New York, United States

Assistant Professor of Physics

Yeshiva University

Summary

All edge cases considered.

An engineer experienced in ML/LLM evaluation. A seasoned results-driven QA Lead in financial/insurtech industries with experience in data analysis, software testing, and a background in mathematics.

Passionate about hands-on testing, mentoring teams, and sharing knowledge to deliver high-quality software. Adept at leading cross-functional teams, designing effective test strategies, and solving complex challenges through innovative, unorthodox solutions.

Tenacious and detail-oriented, excelling in day-to-day work flow as well as when solving complex problems and under pressure.

Languages

English
Native
French
Advanced
Russian
Advanced

Education

Graduate Center of CUNY

Doctor of Philosophy, theoretical condensed matter · Physics · New York, United States

Certifications & licenses

Natural Language Processing

Open.ai

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