Douglas Lawrie
Software Engineer at Anaplan
United Kingdom
Summary
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Rockstar🎓
Top SchoolDouglas Lawrie is a software engineer with 16 years' experience specializing in system performance, low-latency messaging and high-performance Rust and Java systems. He currently builds compiler and calculation engine components in Rust at Anaplan, after a career tuning trading- and banking-grade systems where ultra-low latency mattered. Douglas has a strong open-source pedigree—he contributed performance-sensitive refactors and a code generator to the well-known JCTools project, improving atomic queues and multi-producer behavior. Pragmatic and detail-oriented, he blends deep systems-level thinking with production delivery across finance and enterprise software, often surfacing subtle concurrency and performance bugs before they become incidents.
16 years of coding experience
9 years of employment as a software developer
BSc. (Hons.), BSc. (Hons.) at Coventry University
English
Stackoverflow
90reputation
5kreached
4answers
16questions
Github Skills (25)
atomics10
queuing10
data-structure10
java10
javas10
code-generation10
atomic10
task-queue10
data-structures10
jms-queue10
job-queue10
queue10
concurrency10
automation9
automations9
Programming languages (4)
Github contributions (5)
JCTools/JCTools
Mar 2016 - Nov 2020
Role in this project:
Back-end Developer & Automation Engineer
Back-end Developer & Automation EngineerContributions:68 commits, 16 PRs, 2 pushes in 4 years 9 months
Contributions summary:Douglas primarily contributed to refactoring and optimizing the core components of the jctools library, specifically focusing on atomic array queues. Their work included implementing new methods and refactoring existing ones to improve performance and align with the existing design. The user also worked on a code generator which takes a raw Java source and transforms it into a source code that uses the AtomicFieldUpdaters. Furthermore, they refactored existing code to better align with other similar variants, and address bugs related to multi-producer scenarios.
concurrencyqueueswait-freebenchmarksdata-structures
NEVERFEAR/JavaWhois
Jan 2010 - Apr 2012
Contributions:30 commits in 2 years 3 months
javawhoiswhois-protocoljava-wrapper
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