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I'm a software engineer with going on 15+ years (!) of experience, who has been fortunate enough to work on a pretty varied set of problems in both start-ups and larger organisations. Primarily my experience has been as a lead full-stack developer across backend, frontend, devops, mobile and agile project management, mostly using a Python/Node/React/AWS stack.
Generally I am interested in working with good people on good problems.
Mobile: +61 487 262 276
Email: jon@wtrhs.com
Bachelor of Engineering (Software Engineering) with Honours
2003 - 2009
Thesis - "Automated Configuration of Scanning Electron Microscopes"
Awarded High Distinction
December 2022 - Current
Full-stack development. My main project involved working with design and product teams to uplift the ageing Javascript/React frontend into a new design based on Typescript/React, including building out component libraries and visual testing processes. Supporting more junior developers and mitigating existing technical debt were also important responsibilities.
Frontend: Typescript, React
Backend: Python, Django, pytest
QA: Playwright
Infra: AWS, PostgreSQL, Terraform, Docker
Mgmt: Agile, Jira, Confluence
July 2021 - Now
My partner (a residential/renovation architect) has started her own practice and I took some time off to support her and her business. I was essentially a Mr. Fix-it for whatever needed doing but often included being tech support, office manager, web developer, server admin and furniture removalist.
January 2021 - July 2021
Wrangling several disparate meteorological data sources into a queryable database for machine learning applications and reverse-engineering of Windows-only flood modelling software (HEC-RAS) to run in a headless linux environment.
Tech: Python, SQLAlchemy, gdal, WINE, PostgreSQL/PostGIS
Infra: AWS, Terraform, Docker
Mgmt: Agile using Atlassian stack
August 2017 - February 2021
Lead engineer in a small, agile team of full-stack devs developing a social media marketing web app. Major projects include a new data pipeline to process large amounts of social data, training and deploying machine learning models, migrating the legacy app to a more modern tech stack, building a new B2C mobile app from scratch, and reducing cloud infrastructure costs from $12k+ to ~$2.5k per month.
Data: Python3 (w/ asyncio), Flask, RabbitMQ, AWS (Aurora (PostgreSQL), S3, Elasticbeanstalk, ECR and Elasticsearch)
API: Python3, Starlette, SQLAlchemy
Web Frontend: React, ES6/Typescript, Material-UI
Mobile: React Native, Expo, Fastlane
ML: TensorFlow, Caffe
Cloud: AWS (EBS/EC2, Cloudformation, Aurora, S3)
DevOps: ElasticBeanstalk, Docker, CodePipeline/Deploy/Build, Jenkins
Mgmt: Agile
January 2017 - July 2017
Built a communications and media capture platform focused on wearables (esp. smart glasses), from concept to MVP.
Backend: RESTful web services built around Python + Django + Channels + DRF + Celery
Infrastructure: AWS (EBS, RDS, EC, Route 51) + Ubuntu Server + Docker + Graylog
Frontend: React/Redux + Semantic UI + NodeJS + Webpack + ES6/Typescript
Mobile/Wearables: Android Studio + Kotlin
Mgmt: Agile
November 2014 - December 2016
Number of responsibilities focussing on backend webapp development, including:
Developing tools to work with and render CAD formats, and algorithms to extract, filter and query tag metadata (Python, C++)
Applied machine learning to automatically classify ambiguous file types (Python, C++)
Image analysis and processing on non-native CAD formats (e.g. PDF, image types) to extract metadata (C++, OpenCV)
Data platform for structured capture, analysis and presentation of client data (PHP, Mongo)
Building/maintaining a consumer web application and services API (PHP/Symfony, Angular.js, MySQL, Mongo, AWS)
Agile project management style
June 2013 - September 2014
Developed real-time, low latency financial systems and system health monitoring software (C++, TCP/IP, Visual Studio)
July 2009 - January 2013
Extended and maintained a corporate DMS built on Oracle UCM, web development (internet and intranet) and user support (Java, Oracle PL/SQL, Javascript, HTML/CSS, C# .NET)
Vasco Data Security (now OneSpan[1])
January 2009 - July 2009
Created DNS system libraries, fixed system bugs and evaluated security vulnerabilities through use case and unit testing (Visual C++)
Intellection (acquired by FEI[2])
January 2007 - November 2008
Efficient algorithm design, Windows Driver Model (WDM) driver interfaces, managed and unmanaged interoperability and completed my thesis on Scanning Electron Microscope Automation (C++, C#)
Available upon request.
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