Alan De Vaney.

Alan De Vaney / Software engineer

Applied AI you can verify.
Backend systems you can rely on.

Software engineer with 13 years of experience building production software and data systems. I spent five years owning the reporting platform for a 16-program agency. Today I build AI applications where calculations, citations and model decisions can be inspected and tested.

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Selected engineering work

Implementation details with evidence you can inspect.

HMIS-NL chat answer showing 22,142 people served in 2022 with the evidence panel open, using public synthetic data

HMIS-NL / Housing-services analytics

HMIS-NL, verified AI analytics

Reporting answers staff can inspect and rerun

Used a language model to interpret reporting questions and Python to calculate the answers. Web and terminal interfaces expose the definitions and evidence behind each result.

React / TypeScript / Python / FastAPI / Textual / ECharts

81 targeted tests passed, September 22, 2026

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Charting interface from an earlier version of the trading system

C++ systems / Independent project

C++ trading engine

Persistent state and recovery after a restart

Built a C++23 engine with a persistent indicator cache and order-journal recovery. A versioned C ABI lets strategy plugins share the same interface across replay and exchange integrations.

C++23 / memory-mapped storage / C ABI / CMake

6 recovery scenarios passed, September 22, 2026

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Live guru answer to a question about insults, showing a model-written synopsis above one verbatim quotation from Epictetus, The Enchiridion, and its citation

Retrieval application / Independent project

guru

Hallucinated quotations are ruled out by design

Replaced model-written quotations with sentence IDs resolved against the source. Kept retrieval evaluation separate from checks that the displayed wording matches the original text.

TypeScript / RAG / evals / SQLite

Read case study Source code

All 3 case studies

Professional experience

From reporting for program staff to independent applied AI work.

Mar 2021 - Mar 2026

Data & IT Manager

Friendship Shelter / Data platform engineering, reporting infrastructure and team leadership

Built and ran the reporting platform a 16-program agency depended on: 121 Python modules and 297 notebooks feeding 25 scheduled pipelines that alert the team on failure.

2014 - 2021

Owner and Web Developer

Jellyfish Development

Ran a one-person web shop for local businesses and a youth-golf nonprofit (PHP, JavaScript, three.js). Contributed two merged pull requests to zenbot, an 8k-star open-source trading bot, in 2016.

Full experience and skills

Open to engineering roles

Let's talk about your team.

I'm available for applied AI and backend roles. Remote or Orange County hybrid.

alandevaney@gmail.com
Resume PDFLinkedInGitHub