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Sebastián SarmientoSS
Looking for a job

Sebastián Sarmiento

@sebastiansarmiento1

Learning scientist and curriculum engineer using honest measurement to build AI-enabled assessment.

Chile
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What I'm looking for

I’m looking to build EdTech that turns evidence into production systems—AI-assisted assessment, psychometrics, and learning analytics—with rigorous quality gates and measurement validity I can stand behind.

I’m a learning scientist, curriculum engineer, and EdTech product strategist focused on “what is worth measuring, and how to keep it honest.” I’ve spent my career designing assessments, learning analytics, and curricula that translate evidence into decision-ready systems—then shipping them to production.

At Alpha School, I lead learning science and platform engineering, institutionalizing automated build gates with a derive-the-truth check that fails on mismatch (regeneration under 5% of generated items). I also built the Alpha HS Math Hub, distilling 200+ studies into briefs, and shipped a Digital SAT prep app with a 700+ item bank—cutting production from ~10 days to ~30 minutes through AI generation plus human curation.

My work spans psychometrics and learning science: I’ve applied IRT for national high-stakes admissions items, engineered calibrated mastery-based scaffolding, and hardened student-data pipelines (42 unauthenticated routes eliminated). I bring a teaching-and-curriculum mindset from IB MYP leadership through mathematics instruction—so measurement, pedagogy, and product integrity stay aligned.

Experience

Work history, roles, and key accomplishments

Universidad Adolfo Ibañez logoUI
Current

Adjunct Professor

Universidad Adolfo Ibañez

Mar 2026 - Present (5 months)

Part-time Professor at Universidad Adolfo Ibáñez, teaching Advanced Mathematical Analysis, Statistics, and Data Science across Engineering and Business programs. I design AI-integrated learning experiences that build rigorous quantitative reasoning, mathematical modeling skills, and data-driven decision-making for students in management and engineering tracks.

AS

Lead Learning Scientist

Alpha School

Dec 2025 - Jul 2026 (7 months)

Led AI-assisted learning and assessment platforms, including automated CI quality gates and evidence-based item/content pipelines. Built the Alpha HS Math Hub and shipped a Digital SAT prep app using an AI-assisted item bank with quality controls and production automation.

DU

Professor

DUOC UC

Jan 2022 - Jan 2024 (2 years)

Developed algebra, applied mathematics, and statistics course content for technical higher education. Used mathematical modeling to strengthen problem-solving and quantitative reasoning.

PC

Teaching Assistant

Pontificia Universidad Católica de Chile

Jan 2013 - Jan 2021 (8 years)

Supported instruction in Calculus I–II, Geometry, and Algebra. Concurrently held secondary mathematics-teacher roles.

PC

Innovation Manager & Data Analyst

Preuniversitario Cpech

Jan 2016 - Jan 2020 (4 years)

Managed national-scale assessment data and a self-learning platform, automating reporting across 52 campuses. Drove measurement-led redesign of the 11th-grade program and led the self-learning platform initiative (halted by the pandemic).

UD

Item Constructor & Reviewer

Universidad de Chile (DEMRE)

Jan 2024 - Present (2 years 7 months)

Designed and reviewed high-stakes items for the national university-admission testing instrument. Applied Item Response Theory (IRT) to support psychometric validity and curricular alignment.

Education

Degrees, certifications, and relevant coursework

Universidad de Chile logoUC

Universidad de Chile

Master of Science, Educational Research

2022 - 2024

Grade: 72/96 credits; GPA 6.5/7.0

M.S. coursework in Educational Research (completed all but thesis). Thesis research focused on mathematics teachers' beliefs in Chile.

Universidad del Desarrollo logoUD

Universidad del Desarrollo

Diploma in Instructional Design for Virtual Learning Environments, Instructional Design|

2022 - 2022

Pontificia Universidad Católica de Chile logoPC

Pontificia Universidad Católica de Chile

Bachelor of Arts, Secondary School Teaching (Mathematics)

2017 - 2022

Grade:

Activities and societies:

B.A. program preparing for secondary school teaching in mathematics.

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