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Lucy WambuiLW
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Lucy Wambui

@lucywambui21

Backend & AI Engineer at Smart Ecosystems Inc, improving AI code accuracy by 20%.

United States
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At Smart Ecosystems Inc, I audit Python solutions against production-grade standards, improving AI-generated code accuracy by 20%. I also engineer prompts to expose weaknesses in model reasoning and help mitigate technical hallucinations.

As an AI Software Engineering Fellow at Headstarter, I scaled semantic search to 8k+ stocks using Hugging Face embeddings and Pinecone. I improved query relevance and preserved context across company profiles.

At Headstarter, I also maintained AI explanation availability with API timeouts and local fallback, and reduced regression bugs by 30% by automating tests and linting with Pytest and GitHub Actions.

As a Software Engineering Intern at Internpulse, I achieved 96% test coverage for REST APIs, authentication, and database models. I also built projects including a churn-prediction inference system and an automated stock research platform.

Experience

Work history, roles, and key accomplishments

SI
Current

AI Models Trainer

Smart Ecosystems Inc

Dec 2024 - Present (1 year 9 months)

Optimizing AI-generated code accuracy by 20% by auditing 1,000+ Python solutions against production-grade standards. Mitigating technical hallucinations to below 5% by engineering complex prompts and reducing cross-team evaluation variance by 15% using standardized rubrics.

HE

AI Software Engineering Fellow

Headstarter

Aug 2024 - Dec 2024 (4 months)

Scaled semantic search to 8k+ stocks by indexing Hugging Face embeddings in Pinecone with cosine similarity. Reduced information loss at chunk boundaries, increased relevant top-k chunks by 15%, and maintained AI explanation availability at 100% with fallback mechanisms.

IN

Software Engineering Intern

Internpulse

Apr 2024 - Jul 2024 (3 months)

Achieved 96% test coverage using Pytest to validate REST APIs, authentication, and database models. Validated 100% of authentication REST endpoints using FastAPI Swagger UI.

Education

Degrees, certifications, and relevant coursework

Holberton School California logoHC

Holberton School California

Software (Backend) Development, Software Development

2022 - 2023

Completed a program in Software (Backend) Development at Holberton School California from August 2022 to August 2023.

University of Nairobi logoUN

University of Nairobi

Bachelor of Science, Geospatial Engineering

2018 - 2023

Earned a Bachelor of Science in Geospatial Engineering from the University of Nairobi from August 2018 to September 2023.

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