Invercargill · Bluff · Southland
Websites & custom software for Invercargill & Southland businesses.
Quoting tools, booking systems and Xero integrations for the Southland businesses that make and move real things. Hand-coded by one senior engineer — software that does the work, not just describes it.
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NZ-based · NZD · GST-registered · you own the code
In depth
Web development in Invercargill, built for the businesses that make and move real things
An Invercargill web developer’s real job isn’t a tidier brochure site — it’s the software underneath: quoting and job-management tools for agri-engineering shops, direct-booking for the Stewart Island and Fiordland operators, and Shopify builds with POS-to-online stock sync for Southland retail. Tally Digital builds exactly that for the region’s makers, movers and service firms — hand-coded by a senior engineer, and yours to own.
What an Invercargill web developer actually builds
Concrete things, not a redesign. For an agri-engineering or fabrication shop, that’s a quoting and job-management app that replaces the spreadsheets — parts, labour, dispatch and status in one place. For a Bluff or Stewart Island operator, it’s direct-booking with live availability and payments. For a retailer in Invercargill Central, it’s a Shopify build with POS-to-online stock sync and GST handled in NZD. The common thread is web software that does the work, not a page that describes it.
The quoting-and-job-tracking gap in Southland’s workshops
This is the clearest custom-software gap in the region. Firms feeding Fonterra Edendale and Alliance Group — the region’s fabrication shops, machinery firms and rural contractors — run quoting, job tracking and dispatch across spreadsheets, whiteboards and paper, with nothing tying them together. A web app closes that: quote to job to invoice in one flow, live status your team and customers can see, and the numbers pushed to Xero instead of re-keyed. The work is recurring, there’s budget for it, and almost nobody local is building it — which is exactly why it pays to.
The datacentre and energy build-out — and the suppliers it pulls in
Southland’s data-and-energy investment is reshaping the local supplier base. The Datagrid Makarewa AI datacentre, Contact Energy’s Southland wind projects and the Tiwai/Rio Tinto contractor network are drawing in logistics, trades and services firms that will need real tools — supplier portals, induction and compliance tracking, job dashboards and integrations into the systems the big players run. There’s a first-mover advantage in being the studio that builds them as the work ramps up, rather than bolting something on afterwards. That’s the kind of custom build I take on.
Custom-built vs a template — when each makes sense
Be honest about which you need. If you want a handful of pages that explain the business and rank well, a template on a modern stack is fine — quick and cheap, and I’ll happily point you at one. The moment there’s real logic underneath — a quoting engine, POS-to-online stock sync, a booking system wired to your back office, a Xero or supplier integration — a page-builder stalls, and you end up paying more to force it than to build it right. Most Southland jobs are a mix: a fast marketing site with a custom tool behind it.
Who you actually work with
Not an account manager and an offshore team — Isaac Vicliph, a senior software engineer with a decade shipping software in financial services, writing the code himself. Clear scope and a fixed price before anything starts, direct contact throughout, and full ownership of the code at the end. NZ-based, priced in NZD, GST-registered.
Timelines and what it costs
A fixed price against a clear scope, worked out before anything starts — no hourly meter, no surprises. A tight marketing site is usually a few weeks. A custom quoting tool, booking system or integration takes longer, because there’s real logic to design, build and test, and it’s scoped in stages so you see progress and aren’t paying into a black box. Send the actual bottleneck — the manual quoting, the OTA-only bookings, the stock that won’t sync — and you’ll get scope, approach and a firm number back before any work begins.
Reviewed July 2026 · written by Isaac Vicliph, Tally Digital
Who it’s for
Built for the businesses that run Invercargill.
Agri-business, engineering & manufacturing
Southland has a thick base of engineering and agri-services owner-operators — the fabrication shops, machinery firms and contractors feeding Fonterra Edendale and Alliance Group. Most run quoting, inventory and job-management on spreadsheets. I build web apps that take that work over.
Tourism & experience operators
Southland is the way in to Stewart Island/Rakiura, Fiordland and the Catlins. Operators like Real NZ's Stewart Island Experience ferry and the Rakiura guiding outfits lose margin to OTA commission. Direct-booking, live availability and channel integrations keep more of each sale on your own site — recurring work that pays for itself.
Hospitality & events
The Invercargill Licensing Trust runs a large portfolio of hotels, bars and conference venues, and events like the Bluff Oyster & Food Festival bring seasonal spikes. Ticketing, table and room booking, payments and membership all need to feed the same back-office workflow — one system, not a handful of plugins that don't talk to each other.
Retail & e-commerce
The redeveloped Invercargill Central retail cluster and regional brands — H&J Smith's successors, Southland merino and artisan food producers — sell across a counter and online. That needs Shopify builds with custom app logic, POS-to-online inventory sync and GST/NZD handled correctly, which is where most template builds fall over.
Professional & financial services
Accountants, law firms, real-estate agencies and construction franchises like Jennian Homes Southland — along with the SBS Bank adviser network headquartered on Don St — run on client portals, Xero and CRM integrations, and workflow automation. Enquiry triage is a good first place to put AI to work. All of it sits past what a static site can do.
Energy & datacentre supply chain
The Datagrid Makarewa AI datacentre, Contact Energy's Southland wind projects and the Tiwai/Rio Tinto contractor network are pulling in logistics, trades and services suppliers. Those suppliers will need dashboards, portals and integrations — and there's an early advantage in being the studio that builds them as the data-and-energy work ramps up.
What we solve
The problems that cost you the most are the ones a template can’t reach.
Brochureware that can't transact
Most Southland SMEs run dated WordPress sites with weak Core Web Vitals and no online booking or e-commerce. Tourism operators stay stuck on OTA channels and retailers have no POS-to-web inventory sync. The site tells people what the business does but can't take a single booking or sale itself.
Manual quoting and job tracking
Agri-engineering and manufacturing firms run quoting, job tracking and dispatch across spreadsheets and paper, with nothing tying them together. It's the clearest custom-software gap in Southland — the work is recurring, there's budget for it, and nobody local is doing it.
No integrations or automation
Xero, CRM and supplier APIs sit disconnected, so enquiries, quotes and dispatch get re-keyed by hand from one system to the next. Wiring those together is straightforward integration work, and it's the part the local market rarely takes on.
Zero AI-readiness
Most sites carry no structured data, no enquiry triage and content that was never written for AI answer surfaces, so Southland firms don't show up when customers ask an assistant. The fix starts with clean, structured foundations under the site, not a chatbot stuck on top.
The difference
You talk to the person who writes the code.
Plenty of shops will build you a page and move on. Fewer can build the software behind it — the booking flow, the integration, the internal tool a growing Invercargill business runs on.
Tally Digital is Isaac Vicliph — a senior software engineer with a decade shipping software in financial services. Every project is hand-coded on a modern stack, every integration is real, and the code is yours to keep. No junior hand-off, no page-builder lock-in, no “who supports this now?”.
- Custom software, not templates
- Real API & booking integrations
- Modern stack — Next.js, Sanity, Supabase, Shopify
- You own the code and the accounts
What we build
Websites that do a job — plus the software behind them.
Proof
Real software, shipped for New Zealand businesses.
Inventory platforms, member portals and custom builds for NZ clients — the same senior engineering that goes into every Invercargill project.
How it works
A clear path from brief to launch.
Brief
We map the real problem and how your systems work today — not just a page count.
Architect
A plan you can read: what gets built, which integrations, what you own at the end.
Build
Hand-coded on a modern stack (Next.js, Sanity, Supabase, Shopify) — no page-builder debt.
Launch & support
Shipped, documented and handed over. You talk to the person who wrote the code.
FAQ
Questions, answered.
- Do you work with Invercargill and wider Southland businesses?
- Yes. Tally Digital is a New Zealand software studio working with Invercargill, Bluff and Southland businesses, remotely and on-site as needed. The process is the same wherever you are: clear scope, direct contact with the engineer writing the code, and software you own outright. Distance from Southland has never gotten in the way of well-run remote delivery.
- Can you build a direct-booking system for a Southland tourism operator?
- Yes. For operators serving Stewart Island, Fiordland and the Catlins, I build direct-booking and ticketing with real-time availability, payments and channel or OTA integrations, so more bookings land on your own site and you pay less commission. It's a real application wired to your back office, not a widget dropped onto a template.
- Can you connect my website and systems to Xero?
- Yes. Xero integration is core work: syncing invoices, contacts, inventory or job data so quotes, orders and jobs flow through on their own instead of being re-keyed. I build it against Xero's API for the way your business actually runs, rather than leaning on a generic plugin that only covers the simplest case.
- What's the difference between a web designer and a web developer?
- A designer decides how a site looks; a developer builds what it does. Most Invercargill agencies work design-first and hand over a WordPress or Shopify template. Tally Digital is engineering-first: custom web apps, integrations, automation and AI, written by hand. If your problem is a workflow or a system rather than a look, that's a developer's job, not a template's.
- Can you build a custom quoting or job-management tool for a Southland agri-engineering business?
- Yes — it’s the work Southland needs most. Instead of running quotes, job tracking and dispatch across spreadsheets and paper, I build one web app that carries a job from quote to invoice: parts and labour, live status your team and customers can see, and the figures pushed straight to Xero. It’s scoped to how your workshop actually runs, whether you’re feeding Fonterra Edendale and Alliance Group or serving farms direct, and you own the software at the end.
- Can you build a Shopify store with POS-to-online stock sync for an Invercargill retailer?
- Yes. For a business selling across a counter in Invercargill Central and online, I build Shopify with the custom app logic most template stores skip — POS-to-online inventory sync so stock stays right in both places, plus GST and NZD handled correctly at checkout. If you carry Southland merino or artisan food alongside general stock, the catalogue and shipping rules get built for that, not forced into a generic theme. You own the store and the code behind it.
- How much does custom software or a web app cost?
- Every build is scoped to the specific problem, so you get a fixed price against a clear plan instead of an open-ended hourly rate. A focused job-management tool or booking system sits well below a full platform. Send the bottleneck you want fixed and I'll come back with scope, approach and a firm number before any work starts.
Explore
What we build for Invercargill businesses
Tell me what your business has outgrown.
Tell me what's slowing your Invercargill or Southland business down — the manual quoting, the OTA-only bookings, the systems that won't talk. I'll write back with a clear plan and a fixed price, no jargon.