Rui Peixoto

Mathematician looking for interesting problems.

(+351) 915 374 745
Lisbon, Portugal

Professional Experience

Software Developer

2025

freiheit.com

  • Developed enterprise-scale logistics and accounting software for the WaWi Nexus project, a cloud-based end-to-end platform powering the businesses of the Schwarz Group.
  • Delivered the business-critical DAY module for WaWi Nexus, deployed across Lidl warehouses to manage long-running daily inventory and accounting operations.
  • Ensured production stability of a mission-critical, high-availability system through advanced debugging, performance optimization, and incident resolution.
Go Typescript Gupta SQLWindows Microservices gRPC REST Protobuf Kubernetes Terraform MongoDB Oracle Database Datadog Vue.js

Teaching Assistant and Doctoral Researcher

2024 – 2025

University of Massachusetts, Amherst

  • Taught advanced calculus and linear algebra to more than 300 students.
  • Engaged in research in mathematical physics. Advisor: Owen Gwilliam
Teaching and Mentorship Mathematical Physics Factorization Algebras Derived Geometry

Education

Master of Science in Applied Mathematics and Computation

2021 – 2023

IST, University of Lisbon

  • GPA: 19/20 — highest GPA of graduating year
  • Thesis: Vertex Superalgebras from Prefactorization Algebras — Advisor: John Huerta

Bachelor of Science in Physics

2017 – 2021

University of Porto

  • GPA: 18/20 — highest GPA of graduating year

Projects

Vertex Superalgebras from Prefactorization Algebras

  • Generalized a theorem of Costello and Gwilliam to construct factorization algebras encoding vertex superalgebras arising in supercomformal field theories.
Mathematical Physics Quantum Field Theory Vertex Algebras Higher Category Theory

Modeling of Optical Systems

  • Collaborated with experimental group at INESC TEC to propose a novel design for environmental optical sensors.
  • Developed a perturbative analytical model to characterize the resonant behavior of graphene-dielectric coatings in optical fibers.
  • Implemented a transfer-matrix algorithm to model and analyze the critical optical response of multilayer structures.
  • Published at Phys. Rev. Applied.
Python Numpy Scipy Pandas Matplotlib Julia Array Programming

Skills

Go

Rust

Typescript

Python

Julia

Lua

SQL

Git

Linux

Typst

LaTeX

Languages

English Proficient — IELTS 8.5/9
Portuguese Native
Spanish Intermediate

Awards

FCT Research Scholarship

2022 – 2023

Academic Excellence Awards

2022, 2023, and 2024