Jonathan is a Software Engineer at LSEG.
There he develops low-latency market data feed handlers in C++ for high-frequency trading applications. Previously, he maintained think-cell’s core C++ libraries built around a custom range implementation.
He is also the chair of the std::ranges study group in the C++ standardization committee, a frequent speaker at conferences and universities, and the author of multiple open-source C++ libraries.
Developing low-latency market data feed handlers in C++.
since January 2026
since February 2025
March 2024–February 2025
since July 2019
Maintainer of think-cell's C++ core libraries; represented the company at conferences and in the C++ standardization committee.
April 2023–December 2025
Developing open source C++ libraries.
March 2015–April 2023
RWTH Aachen; with distinction (1.0)
Focus: semantics of programming languages, verification, formal methods
October 2020–December 2022
RWTH Aachen; very good (1.2)
Focus: computer graphics, physical simulation
October 2016–October 2019
An introduction to functional programming with a focus on composability/monads: std::ranges to compose algorithms, std::optional/expected for composing failible functions, and actions to compose IO/concurrency.
Rules about object construction/destruction, std::launder, implicit lifetime types, etc.
Collection of obscure, weird, and fun C and C++ features
How to write a faster switch: CPU pipelining, branch prediction, jump threading, tailcalls
C++ parser combinator library giving you the flexibility and control of a handwritten parser without any of the manual work by using a convenient DSL
Generic extensible bytecode interpreter designed for fast startup time
STL compatible C++ memory allocator library
Zero overhead utilities for preventing bugs at compile time