What we do
I’m Stella Bullo, a linguist turned developer.
After a PhD and academic career in the UK researching linguistics and health communication, I moved into coding and NLP to build tools that make language data usable, ethical, and human-centred.
Through Sierra Codes, I design bilingual NLP and annotation workflows, and develop lightweight front-end solutions for local professionals and small businesses.
Bilingual, language-first applications and annotation tools that turn real-world language into usable data. Focus on health and education, with ethics, transparency, and interpretability built in.
Stack: Python, Flask, JavaScript, NLP
Bilingual app that turns metaphorical pain descriptions into clear summaries for patients and clinicians.
Live appNote: the server may take a few seconds to wake.
End-to-end flow in this article.
Stack: Python, Regex, Flask
Assists researchers by auto-suggesting figurative language tags in narratives to accelerate qualitative analysis.
Source codeMore context in this article.
Stack: Python, Pydantic, YAML, JSON Schema, FastAPI (planned)
A localization/annotation framework for language across domains.
Coming soonOverview in this article.
Fast, mobile-first websites for local professionals and businesses in Berrotarán and nearby areas. Clear content, WhatsApp/Instagram integration, and local SEO so people find you and reach out.
Stack: HTML, Tailwind, WhatsApp/Instagram
Lightweight landing page with direct WhatsApp and Instagram contact. Clear local focus.
Live site
Stack: HTML, CSS, Bootstrap
Highlights cultural attractions and local resources with responsive layout.
Live demo
Stack: HTML, Tailwind (prototype)
Educational landing with curated AI content for childhood learning and a simple contact CTA.
Live siteContact
Bilingual linguist-developer building language-first tools and friendly local websites from Berrotarán. Message me on WhatsApp or email and we’ll scope your project.