Sebastián Sarmiento

Built the Alpha HS Math Hub, organizing 19 high-stakes investigations by ESSA evidence tiers with scrollytelling briefs and decision logs. Shipped a Digital SAT prep app with a 700+ item bank and implemented quality gates, adaptive scaffolding, and hardened student-data pipelines.

Founded an early-stage Chilean EdTech company focused on data-driven, personalized mathematics. Defined the measurement and curriculum direction and designed a personalization evidence model using a curricular prerequisite graph.

Led the Middle Section mathematics program under IB MYP, overseeing curricular alignment and pedagogical consistency. Supervised the teaching team and designed data-informed strategies to improve attainment and conceptual understanding.

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

Supported instruction in calculus, geometry, and algebra at Pontificia Universidad Católica. Delivered earlier teaching and academic support roles alongside secondary mathematics teaching.

Designed and automated pedagogical data pipelines across 52 campuses to improve assessment operations using SQL and automated reporting. Helped develop a self-learning platform and supporting information systems focused on improving educational access.

Designed and reviewed high-stakes items for national university-admission exams, applying IRT to protect psychometric validity and curricular alignment.

Completed graduate coursework in educational research, focusing on psychometrics, assessment design, and research methods. Conducted research on mathematics teachers’ beliefs in the era of post-truth and AI.

Earned a diploma in instructional design focused on virtual learning environments.

Completed a B.A. for secondary school teacher training with a major in mathematics.