01
Cast Conditions
A modern river flow, weather, and tides reference application for jet boaters, fishermen/fisherwoman and whitebaiters for several popular South Island, New Zealand rivers.
Completed ↗
Agentic software engineer · Aotearoa New Zealand
Available for selected projectsComplex systems.
Calm software.
I’m Mark. I engineer practical tools, web applications and AI-assisted workflows that make complicated work easier to see, understand and run.
CURRENT SIGNAL
Building software that earns its place in the workflow.
SvelteKitPythonGoAI
Software with
a job to do.
A selection of current and completed work. The common thread is simple: make useful information visible and the next action obvious.
02
OpsAssistant
A comprehensive web application which captures the key functions of an Irrigation Scheme Operations Manager and provides the data and tools that they use on a daily basis at their fingertips.
Completed private / internal
03
Corporate API
Implementation of an API to expose corporate data as a service. Built on a Django REST API with a managed Postgresql database. This project is now in production and is transforming the way data is stored, managed and accessed across the organization. Ongoing development is occurring to integrate new data sets.
Delivered to Customer private / internal
04
Corporate Risk Management Application
A simple approach to managing and tracking corporate risks. The focus of this application is to make management and tracking of corporate risks and risk controls as simple as possible for executives and managers. This project is in development and more details will be available when development is complete.
Delivered to Customer private / internal
05
Dam Manager
A comprehensive Dam Safety Management tracking system for use by the Dam Manager of a Dam. This is being built to enable efficient tracking of requirements under new Dam Safety Assurance Programme to meet compliance needs for Form 3, under the new Dam Safety Legislation.
Delivered to Customer private / internal
06
Environmental Initiatives MVP
I am working with a group to help develop MVP versions of software tools to assist with long-term environmental initiatives. Currently this involves developing prototype products to validate requirements and test product ideas from an end user perspective.
Currently Being Developed private / internal
07
FEP Audit Scheduler
The FEP Audit Scheduler is a web app that helps environmental teams organise Farm Environment Plan audits for around 400 farms across Central Canterbury. Staff use it to book independent auditors into weekly schedules, keep farm and auditor records up to date, and send reminders to farmers ahead of their audit. It takes the guesswork out of planning by suggesting sensible bookings that account for auditor availability, travel between farms, and the requirement that farms rotate between auditors over time.
Currently Being Developed private / internal
08
Irrigation Storage Management
A fullstack application providing water storage management, rationing, usage tracking and operational and customer reporting for a large irrigation storage pond.
Currently Being Developed private / internal
09
Lone Worker Tracking
A client/server lone worker check-in/check-out tracking system which uses a Telegram bot to provide interface to lone workers and their location. A Go Server, with a Sveltekit Admin Client providing live updates via secure websockets.
Delivered to Customer private / internal
10
Meals on Wheels
A comprehensive volunteer scheduling and rostering system to support Meals on Wheels volunteers. Enables coordinators to manage, schedule and contact volunteers to ensure 100% roster coverage to deliver meals on wheels to the elderly.
Delivered to Customer private / internal
11
Outager
A custom built asset outage management system. Includes customer notification, downtime reporting and outage state management.
Delivered to Customer private / internal
Side projects
Small builds. Real interests.
Forecasts, film, racing, food, model kits and one determined sheepdog.
01 ↗
CastConditions
River forecasts and conditions for better decisions before heading out.
ForecastsRiver data
02 ↗ Movie DB
A compact discovery interface for trending and upcoming films.
DiscoveryTMDB
03 ↗ Scotch Thistle Racing
Team results, media and race-day stories from the grass track.
RacingTeam site
04 ↗ Smokin' Meat
Recipes, techniques and reference notes for low-and-slow cooking.
BBQReference
05 ↗ Norman's Sheep Yard
A small browser game with a sheepdog, a paddock and one clear job.
GameInteractive
06 ↗ Model Kits
Scale model kits, built at the bench and photographed close enough to see the work.
Model kitsGallery
Plain thinking.
Solid delivery.
I work from the problem outward: understand the decisions, shape the information, then choose the simplest technology that will hold up.
Build
Full-stack applications with sensible data models, dependable APIs and interfaces people can understand at a glance.
Connect
Integration work that gets systems, teams and information moving together without hiding the important details.
Automate
Thoughtful AI and workflow automation that removes repetition while keeping people in control of the result.
Working stack
The tools stay in service of the work.
Broad enough to choose well. Experienced enough to keep it boring where boring is good.
Languages
Python · Go · TypeScript · JavaScript · SQL
Product
SvelteKit · Svelte · Django · APIs · Postgres
Systems
Linux · Git · Docker · CI/CD · DigitalOcean
AI
OpenAI · Anthropic · Codex · PyTorch · scikit-learn
Agentic Coding
Backend API Framework
Backend Database
Backend, API and System Integration
Cloud Server Hosting
Data science and integration
Work in
the open.
A live pulse from GitHub and a record of conversations about AI, data and the systems people depend on.
15,027 contributions all time
7,227 contributions last 12 months
4,735 commits last 12 months
1,938 pull requests last 12 months
172 repositories public + private
365 day output 281 day streak
JavaScript 47.8%Python 15.3%Svelte 11%HTML 8.6%CSS 6.3%Other 11%
Speaking
Sharing what works.
Practical talks for industry, boards, user groups and conferences, usually where data, AI and operations meet.
Data Insights and AI at Central Plains Water
Lincoln Agritech · Industry · Jul 2026
Data Insights and AI at Central Plains Water
Central Plains Water July 2026 Governance Group Presentation · Industry Board Members and Stakeholders · Jul 2026
Unlocking the Power of Data to Transform Water Management
Water New Zealand Conference 2025 · Conference · Jul 2025
Empowering Resilience and Efficiency
Snowflake User Group Christchurch · User Group · Apr 2025
Empowering Resiliance and Efficiancy - Central Plains Water Ltd’s Data-Driven Journey with Flock Consulting.
Digital Workplace Conference New Zealand 2025 · Conference · Mar 2025
[ 04 / ABOUT ]
Behind the keyboard
I’ve been making computers useful since the ZX81.
I’m a long-time software engineer with a practical bias: understand the problem, shape the data, build the interface, and make the result useful for the people who rely on it.
That same curiosity carries away from the keyboard, onto rivers, race tracks, the modelling bench and wherever a drone can get a better view.
HusbandDadJet boaterGrass kart racerFishermanDrone pilot
View my scale model kits at kits.mmarkk.dev ↗Have a complicated problem?
Let’s make it
feel simple.
Available for selected software, integration, AI workflow and speaking projects.
Talk on LinkedIn ↗ Explore GitHub ↗