Jason Veysey
Energy Modeling Program Director at SEI — Stockholm Environment Institute
Somerville, Massachusetts, United States
Summary
🎓
Top SchoolJason Veysey is a senior scientist and Energy Modeling Program Director at SEI with over two decades of experience building and applying energy system and emissions models to inform national climate plans and decarbonization strategies. He leads development of high-performance open-source tools—most notably NEMO—and has deep expertise using LEAP to assess mitigation pathways across power, buildings, transport, and industry. As an IPCC Sixth Assessment Report expert reviewer and head of SEI’s Initiative on Integrated Climate and Development Planning, he bridges technical modeling with policy-ready planning for NDCs and SDGs. Jason combines hands-on software development with program leadership, capacity building, and international project delivery, and he’s based in Somerville, Massachusetts. An operator who codes, he brings rare fluency in both optimization-engine design and the practical realities of national climate decision-making.
7 years of coding experience
16 years of employment as a software developer
Bachelor of Arts - BA, Political Science and Government, Bachelor of Arts - BA, Political Science and Government at Harvard UniversityMPP, Environmental Policy, MPP, Environmental Policy at Tufts University
French, Spanish
Github Skills (27)
energy10
power-systems10
integer10
optimisation10
modeling10
modelica10
optimization10
mixed-integer-programming9
nonlinear9
snl-applications9
energy-system9
julia9
science9
linear-programming8
hpc8
Programming languages (2)
Github contributions (5)
sei-international/NemoMod.jl
Jun 2018 - Jan 2023
Next Energy Modeling system for Optimization
Contributions:11 releases, 437 commits, 7 PRs in 4 years 7 months
snl-applicationsoptimizationsystem-modelingenergy-modelingenergy-system-modeling
jwveysey/JuMP.jl
Oct 2018 - Oct 2018
Modeling language for Mathematical Optimization (linear, mixed-integer, conic, semidefinite, nonlinear)
Contributions:3 pushes, 1 branch in 5 days
conicmathematical-optimizationnonlinearintegeroptimization
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.