Henry Steere - Scala Engineer at GrapheneDB

Henry Steere

Scala Engineer at GrapheneDB

Gauteng, South Africa

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Summary

👤

Senior

🎓

Top School

Henry Steere is a Scala engineer with nine years' experience building backend systems, APIs and deployment architectures, currently working on Scala APIs for Neo4J at GrapheneDB. He combines strong functional-programming instincts with full-stack experience from Robo‑advisor work (Scala/JavaScript) to C#, Java and C++ systems, and has hands-on expertise in cloud deployments, CI/CD and version-control migrations. Henry has a mathematics MSc and a taste for data science, having built analytics pipelines with Apache Storm, used Vowpal Wabbit, and completed a Harvard data-science certificate. An active open-source problem-solver, he’s improved a Lisp-to-JavaScript compiler by fixing core REPL and evaluation issues, reflecting an attention to language-level detail. Colleagues value him for working effectively in tight-knit teams and for influencing architectural decisions beyond his coding remit.

9 years of coding experience

8 years of employment as a software developer

High School, High School at Michaelhouse

Master's Degree, Mathematics, Master's Degree, Mathematics at University of the Witwatersrand

Graduate data science certificate, Data Science, Graduate data science certificate, Data Science at Harvard Extension School

Stackoverflow

Stats

196reputation

66kreached

4answers

1question

Github Skills (11)

compiler10

compiler-compiler10

lisp10

javascript9

json6

mapreduce6

nodejs6

crossfilter6

if-statement6

topojson6

Programming languages (10)

JavaDockerfileC++ShellScalaCommon LispHaskellMarkdown

Github contributions (5)

jscl-project/jscl

May 2018 - May 2018

A Lisp-to-JavaScript compiler bootstrapped from Common Lisp

Role in this project:

Back-end Developer

Contributions:5 commits, 2 PRs, 12 comments in 6 days

Contributions summary:Henry primarily contributed to bug fixes and enhancements in the Lisp-to-JavaScript compiler. They resolved issues related to the `reduce` function, web worker REPL error handling, and parenthesis matching in the REPL. The user also exposed the `eval_in_lisp` function via `jscl.evaluateString` in the prelude, and put back register matching, demonstrating a focus on improving the core functionality and user experience of the compiler.

javascript-compilerjavascriptcompilerjscllisp-interpreter

HenryS1/salmon

May 2020 - Apr 2022

Monads for Common Lisp

Contributions:37 commits, 16 PRs, 42 pushes in 1 year 11 months

lisp-interpreterlispmonadscommon-lisp

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