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Hire Dr. Chris S.

New Zealand

USD 60 /hr

Expert in mathematical modelling & simulation | Specialising in C++/Python | Turning complex systems into solutions

Profile Summary

I’m an applied mathematician with a PhD in numerical relativity and over a decade of experience solving complex physical and mathematical problems using high-performance computing and custom-built simulation tools. My core expertise lies in the numerical solution of partial differential equations (PDEs), scientific computing, and advanced mathematical modelling. I currently hold a permanent academic position as a Senior Lecturer at the University of Canterbury, where I teach applied mathematics and lead research in numerical relativity—particularly the simulation of black hole systems, gravitational waves, and conformal field equations. I have developed and contributed to high-performance simulation codes in C, C++, Python, and MPI, and have experience with frameworks like OpenFOAM and the Einstein Toolkit. I am the Principal Investigator on a Royal Society Marsden Fast-Start project, leading cutting-edge research into gravitational wave scattering. I have published widely in top journals, presented at international conferences, and successfully supervised numerous postgraduate students. Beyond academia, I have experience translating research code into efficient C for statistical modelling applications and am now looking to apply my skills in broader contexts. I bring a rigorous, analytical mindset, a deep understanding of physical systems, and a strong coding background to every project. I’m particularly interested in industry problems involving simulation, data analysis, algorithm development, and system modelling—especially where performance, reliability, and physical accuracy matter.

Subject Matter Expertise

• ★ Applied Mathematics
• ☆ Data Analysis
• ☆ Algorithm Design
• ☆ Mathematical Models
• ☆ Pure Mathematics
• ☆ Python

Services

• Research
• Consulting
• Data & AI
• Product Development

Research Feasibility Study, Technology Scouting, Fact Checking, Scientific and Technical Research

Consulting Scientific and Technical Consulting

Data & AI Algorithm Design-Non ML, Data Visualization

Product Development Formulation, Concept Development

Work Experience

Senior Lecturer in Applied Mathematics

University of Canterbury

January 2024 - Present

Senior Lecturer

University of Canterbury

October 2021 - Present

Lecturer in Applied Mathematics

University of Canterbury

September 2021 - December 2023

Postdoctoral Fellow

University of Otago

April 2020 - September 2021

Lecturer

Rhodes University

October 2018 - March 2020

Postdoctoral fellow

Rhodes University

May 2017 - October 2018

Education

Doctor of Philosophy

University of Otago

June 2013 - December 2016

Doctor of Philosophy (Mathematics and Statistics)

University of Otago

June 2013 - June 2016

Bachelor of Science (honours) First Class (Mathematics and Statistics)

University of Otago

January 2009 - January 2013

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

J Frauendiener and C Stevens(2021). The non-linear perturbation of a black hole by gravitational waves. I. The Bondi–Sachs mass loss . Classical and Quantum Gravity. 38. (19). p. 194002. {IOP} Publishing

Chris Stevens, Jörg Frauendiener, Jonathan Hakata (2021). Can Gravitational Waves Halt the Expansion of the Universe? . Universe.

Anslyn J. John and Chris Z. Stevens(2019). Bondi accretion in the spherically symmetric Johannsen–Psaltis spacetime . The European Physical Journal C. 79. (11). Springer Science and Business Media {LLC}

Georgios Doulis and Jörg Frauendiener and Chris Stevens and Ben Whale(2019). COFFEE—An MPI-parallelized Python package for the numerical evolution of differential equations . SoftwareX. 10. p. 100283. Elsevier {BV}

Chris Stevens, Florian Beyer, Jörg Frauendiener, Ben Whale(2017). Numerical initial boundary value problem for the generalized conformal field equations . Physical Review D. 96. (8). American Physical Society ({APS})

Chris Stevens, Richard J. Barker, Matthew R. Schofield, Janine A. Wright, Alain C. Frantz(2014). Closed-population capture-recapture modeling of samples drawn one at a time . Biometrics. 70. (4). p. 775--782. Wiley-Blackwell

Chris Stevens, Jörg Frauendiener, Ben Whale(2014). Numerical evolution of plane gravitational waves in the Friedrich-Nagy gauge . Physical Review D. 89. (10). American Physical Society ({APS})

PREPRINT

(2021). The non-linear perturbation of a black hole by gravitational waves. I. The Bondi-Sachs mass loss.

(2021). Can gravitational waves halt the expansion of the universe?.

(2021). A new look at the Bondi-Sachs energy-momentum.

(2019). Accretion onto deformed black holes via pseudo-Newtonian potentials. PoS (HEASA 2018) 001.