Machine Learning Engineer
Current
Dec 2024 - Present
Who is Jeff Katz? Overview
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Jeff Katz is listed as Machine Learning Engineer at AppFolio, based in San Francisco, California, United States. AeroLeads shows a matched LinkedIn profile for Jeff Katz.
Jeff Katz previously worked as Open Source Contributor at All Hands Ai and Open Source Contributor at Langchain. Jeff Katz holds J.D., Law from Columbia Law School.
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AppFolio
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Profile bio
About Jeff Katz
Data engineer and AI engineer currently contributing to open source AI libraries like langchain, OpenDevin, and building a langchain app (github.com/JeffKatzy/interfamily-agent) deployed at internalfamilysystems.ai.Currently working on RAG and agentic pipelines as an open source contributor to All Hands AI’s coding agent called OpenDevin, which automates software engineering. Also, open source contributor to Lanchain, focusing on its integration with the Neo4J database. Coding background comes from strong object oriented, tdd approach, having previously worked on one of the largest ruby on rails codebases at Case Commons. Azure DS Associate Certified.Programming Languages:‣ Python, Javascript/Typescript, Ruby, SQL* Libraries Flask, React, Redux, NextJS* Cloud primarily AWS and Azure.Databases and Data Warehousing:‣ RDS, Snowflake, Spark, DuckDB‣ Advanced in OLTP/OLAP Data Warehousing database design patterns, having built Data Marts in cloud database softwares including Snowflake, and AWS’s RDS‣ Developed data lakes with combination of AWS S3, Glue, Athena along with AWS Wrangler/Boto3‣ Data analysis and visualization using Pandas, NumPy, Matplotlib, Streamlit and tableau‣ Analytics engineering pipelines with DBT, Fivetran, Prefect, DuckDB‣ Experienced developing robust observability systems and data quality rules for optimization of MLmodelsCloud Platforms:‣ Extensive experience building data pipelines (ETL/ELT) and cloud orchestration with Airflow/Prefect, AWS Lambda / Eventbridge, Athena‣ Experienced in using Infrastructure as Code (IAC) tools like Boto3, Docker, and Terraform deployed on AWS ECRBackend Development:‣ Experienced with modern backend frameworks including FastAPI and Flask for Python-based APIdevelopment‣ Experience with DevOps platform architecting using Github Actions, Docker, and Terraform for CI/CD (Github Actions) and app deployment.* Previously implemented end to end search for child welfare platform (ElasticSearch/Postgres, React, Ruby)
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13 roles
Jeff Katz work experience
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Open Source Contributor
Contributor to the OpenDevin agent that uses AI agent pipelines to write code, upgrading the Agent’s ability to perform/respond to linting. The feature involved 450+ lines of Python, including unit and integration tests.Upgraded linter to be multilingual and configurable, integrating the tree-sitter library, improved linter performance, and extracted.
Apr 2024 - Dec 2024
Open Source Contributor
Contributor to the Langchain open source repository, refactoring the Langchain’s integration with Perplexity AI. Debugged and refactored Langchain’s integration with Neo4J, including integrations with HuggingFace embeddings, and using multiple embedding types across different Neo4J indices.
Apr 2024 - Dec 2024
Data Engineer
Data engineer for the startup that provides federal contractors with search interface/filtering of government contracts. Developed data pipeline and ML pipelines.
May 2022 - Dec 2024
Data Engineer
Data engineer consultant to company partners in database design, and RAG pipelines, cloud based data pipelines. Career course instructor and curriculum writer covering backend web development (Python/Flask), devops (AWS, Docker, K8s, Terraform, CI/CD), and data pipelines (PySpark, Redshift, Airflow, DBT), RAG pipelines (Langchain, LlamaIndex).Launched a.
Jan 2020 - May 2022
Adjunct Professor
Taught and developed the first data science course for Yeshiva University's masters in data analytics program. Topics included ETL, Linear Regression, Linear Algebra, Feature Engineering, Feature Selection, and Random Forests.
May 2019 - Dec 2019
Lead Data Science Instructor, Lead Curriculum Writer
Developed Flatiron School's data science immersive course from scratch -- from pitching data science as a new business line to leadership, meeting with industry experts to align course with market needs, to hiring an awesome team of curriculum writers and instructors, working with the product and marketing teams to structure an online and in person launch.
Nov 2017 - Dec 2018
Lead Web Instructor/Lead Web Curriculum Writer
One of three lead instructors at the time of hiring, I have taught over two hundred students Ruby on Rails and JavaScript. During tenure, worked with team to grow the Flatiron's JavaScript instruction from one to six weeks, and spearheaded the teaching of React and Redux in June 2016. Graduates have gone on to work at LinkedIn, Microsoft, and BlackRock. In.
May 2015 - Nov 2017
Software Engineer
Fullstack software engineer for Case Commons where worked on development of Casebook, the first family-centric, Web 2.0 child welfare tool, in partnership with Pivotal Labs, leaders in Ruby on Rails consultancy and start-up development.Agile development following extreme programming practices: TDD, pair programming, short iterations, continuous.
Jun 2013 - Jun 2015
Associate
Corporate and Litigation associate for the law firm. Represented Facebook in a litigation matter where investigated company practices and strategies to ensure compliance with federal rules and regulations. Represented the independent board of directors at Bain Capital in an investigation related to its purchase of clear channel radio. Represented.
Oct 2011 - Jan 2013
Data Analyst, Systems And Planning
Worked for the mobile banking startup company to formulate and execute strategies to optimize performance at the customer, salesperson, and management level. o With team, devised plans for determining and targeting most profitable customers, discovering best practices among sales force, and curbing employee fraud. Drafted the sales force contract governing.
Jan 2011 - May 2011
Summer Associate
Conducted legal research and analysis, wrote memos, and participated in meetings and negotiations for 7+ clients. o Researched and drafted documents for intellectual property disputes, including trademark and copyright issues.o Wrote memorandum regarding the appeal of a bankruptcy case, which predicted the actions of the various creditors with a stake in.
May 2010 - Jul 2010
Marketing And Innovation Consultant
Devised and presented to senior management plans on new marketing programs, products, and strategic initiatives. o Assisted with strategy and business for moving to online sales and developed model for predicting sales rates. o Assisted in and developed a company-wide innovation awards program. Researched new customer segments and recommended specific.
Jul 2008 - Jun 2009
2 education records
Jeff Katz education
J.D., Law
Columbia Law School
A.B., Political Science, Economics
Duke University
FAQ
Frequently asked questions about Jeff Katz
Quick answers generated from the profile data available on this page.
What company does Jeff Katz work for?
Jeff Katz works for AppFolio.
What is Jeff Katz's role at AppFolio?
Jeff Katz is listed as Machine Learning Engineer at AppFolio.
Where is Jeff Katz based?
Jeff Katz is based in San Francisco, California, United States while working with AppFolio.
What companies has Jeff Katz worked for?
Jeff Katz has worked for Appfolio, All Hands Ai, Langchain, Govcompete, and Jigsaw Labs.
How can I contact Jeff Katz?
You can use AeroLeads to view verified contact signals for Jeff Katz at AppFolio, including work email, phone, and LinkedIn data when available.
What schools did Jeff Katz attend?
Jeff Katz holds J.D., Law from Columbia Law School.
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