Stephan Gelever
Software Engineer at Atlassian
Charlotte Metro United States
Summary
🤩
Rockstar🎓
Top SchoolStephan Gelever is a software engineer with nine years' experience designing and operating large-scale distributed systems, currently building secure, high-performance authorization services at Atlassian. He has a strong track record at AWS automating region builds, designing asynchronous workflows, and shipping public APIs that scale to millions of customers, alongside mentoring dozens of junior engineers. Deeply proficient in C++ and systems-level engineering from his work at Lawrence Livermore and open-source contributions to the widely used MFEM finite element library, he focuses on reliability, memory safety, and performance. Pragmatic and cost-conscious, Stephan has driven significant operational efficiencies (including a 75% S3 cost reduction and 80% latency/availability improvements) and reduced on-call noise through targeted monitoring and CI/CD improvements. Based in the Charlotte metro area, he pairs research-grade numerical and HPC experience with hands-on production engineering across cloud-native and embedded high-performance contexts.
9 years of coding experience
7 years of employment as a software developer
Bachelor's degree Computer Science, Bachelor's degree Computer Science at Portland State University
Github Skills (13)
debugging10
memory-management10
debug10
c-language10
el10
f10
cprogramming-language10
scientific-computing10
linear-algebra10
computational-science10
parallel-computing9
numerical-methods9
cluster-computing9
Programming languages (2)
Github contributions (5)
mfem/mfem
May 2017 - Nov 2017
Lightweight, general, scalable C++ library for finite element methods
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 commits, 12 PRs, 7 pushes in 6 months
Contributions summary:Stephan primarily focused on fixing memory management issues and improving the stability of the MFEM library. Their work involved identifying and resolving segfaults related to memory allocation and deallocation in core data structures such as `DenseMatrixEigensystem`, `DenseTensor`, and `SparseMatrix`. The user also addressed memory leaks in the mesh reading and printing functionalities, leading to improved software reliability and a reduced risk of crashes. Furthermore, they made const correctness fixes to enhance code quality and maintainability.
c-plus-plusfinitefemamrc-library
gelever/GAUSS
Feb 2018 - Jan 2019
Mixed graph Laplacian upscaling and solvers
Contributions:51 PRs, 233 pushes, 60 branches in 11 months
laplaciansolversupscalinggraph-laplaciangraph
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