Elizabeth Margolis

Software Engineer

Kiddom

Nov 2022 - Nov 2025 (3 years 1 month)

Owned the redesign of the curriculum ingestion workflow, building a front-end ETL tool that processes thousands of lesson files into structured JSON and into the Kiddom platform. Built and maintained internal React + TypeScript tooling and Web application, plus increased accessibility compliance and features to improve classroom usability. Solved ingestion failures across S3, caching, and metadata syncing, improving platform reliability. Explored AI-assisted workflows including prompt evaluation and scoring, model comparison, and debugging LLM behaviors for internal tools.

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Software Engineer

Pinterest (via Baires Dev)

Sep 2020 - Nov 2022 (2 years 3 months)

Built React/TypeScript interfaces for internal dashboards used across operational teams. Improved reliability of API-driven flows by refactoring data-fetching patterns and reducing regressions. Shipped full-stack features integrating Node/GraphQL backend services.

Experimentation Engineer

Laboratoria

Jan 2020 - Dec 2020 (1 year)

Head Coach

Laboratoria

Jan 2018 - Dec 2019 (2 years)

As Head Coach, I designed a zero-to-one experimentation framework that emphasized agile and hypothesis-driven iteration, fostering a culture of continuous improvement. I led technical programs in Mexico, effectively managing curriculum delivery and instructor performance to ensure high-quality education. Additionally, I developed and implemented projects utilizing front-end technologies such as TypeScript, CSS, React.js, and JavaScript, which enriched the learning experience for students. My role also involved evaluating student progress and providing guidance to help them identify the branch of Software Engineering that best suited their potential, thereby enhancing their career development in the tech industry.

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Software Engineer Coach

Apr 2014 - Oct 2017 (3 years 7 months)

As a Software Engineer Coach, I focused on coaching and teaching technical skills to women from lower-income backgrounds, empowering them to secure jobs in the tech industry. I utilized my expertise in JavaScript, TypeScript, and React.js to create engaging learning experiences that fostered skill development. Additionally, I developed and taught REST API concepts to students, enhancing their understanding of how to build and interact with web services. To track and celebrate student progress, I generated data visualizations that provided insights into their learning journey, further motivating them to achieve their goals in the tech field.

ETL Developer

Telefónica Perú

Jan 2013 - Dec 2020 (8 years)

early ETL work

iOS Developer

Avantica

Jan 2013 - Dec 2020 (8 years)

native iOS apps

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Frontend Developer

Able Co.

Jan 2013 - Dec 2020 (8 years)

React frontends

Elizabeth Margolis

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