We Engineer the Systems Businesses Run OnCustom software engineering for business-critical systems in South Africa
For 25+ years we've designed and run the scalable backends behind high-volume betting, fintech, accounting, and healthcare platforms. Most clients stay with us for years, as their technology partner.
Engineers First. Partners for the Long Run.
ProteaByte is a Cape Town software engineering company with over 25 years of experience designing, building, and operating large-scale backend systems. The platforms we engineer and run today process hundreds of millions of transactions a month at 99.99% uptime — across finance, accounting, sports betting, gaming, healthcare, retail, and logistics, on AWS, Microsoft Azure, and Cloudflare. Right now we're building an AI CFO platform that integrates with Xero and SARS.
Many of our clients don't hire us for a project — they partner with us. We act as their technology function: setting direction as a fractional CTO, owning architecture, extending their team, and staying accountable for systems long after go-live.
Complex, high-stakes systems are our speciality and our passion. But we also build professional websites and mobile apps — and they get the same senior engineers and the same standards as everything else we ship.
Reliability
We engineer and run platforms processing hundreds of millions of transactions a month at 99.99% uptime.
Engineering Depth
Architecture, distributed systems, and cloud — senior judgement on the problems that are hard to get right.
Partnership
Technology partner and fractional CTO — an extension of your business, invested in its long-term success.
Results-Driven
Technology decisions tied to measurable business outcomes, not to trends.
What We're Best At, in Order
Complex, high-stakes systems are our speciality. Everything else we do is built on the same engineering.
Supporting Specialities
We also build websites and mobile apps. Same senior engineers, same standards, sized to the job.
All servicesDeep Domain Expertise Across Sectors
Over 25 years we've built solutions for industries where reliability, performance, and compliance are non-negotiable.
An AI CFO for South African Businesses
Accounting is one of our deepest domains. Our AI CFO connects to Xero and SARS, so business owners can ask real questions about cash, tax, and runway, and get answers grounded in their own books.
Our accounting & tax workCan we afford two more developers from January?
Yes, with margin. Hiring two developers at R65 000 a month each keeps your runway above nine months.
I've already set aside your VAT201 payment of R184 200, due to SARS on 25 November.
Based on 1 412 Xero transactions and 12 months of cash flow
Recent Custom Software Projects
A selection of public products we've shipped. Much of our largest work — high-volume platforms for betting, fintech, and enterprise clients — runs behind the scenes under confidentiality.
Spoor360
spoor360.co.za
Cross-site used car search for South Africa — scans AutoTrader, Cars.co.za and WeBuyCars at once across 75k+ listings, collapses duplicates to the cheapest one, and grades every car A+ to F on value.
DiskiOdds
diskiodds.co.za
Independent odds comparison for South African football fans — live 1X2 prices compared across licensed sportsbooks like Betway, Hollywoodbets, and 10Bet, with fixtures for the PSL, Premier League, La Liga, and Champions League.
CampScout
campscout.co.za
Real-time SANParks camp availability, AI-powered safari planning, smart booking alerts, and an 800-species wildlife field guide across all 19 South African national parks.
Dubini
dubini.co.za
An easy-to-use practice management app for Allied health professionals and GPs — simplifying admin for small and large practices alike.
Shinray Digital
shinraydigital.com
End-to-end IT services brand spanning infrastructure, cybersecurity, hardware provisioning, and digital strategy — backed by 24/7 support and 99.9% uptime.
Innodec
innodec.co.za
Brand and website for a family-owned, NHBRC-registered custom home builder crafting bespoke luxury homes, renovations, and turnkey project management across Somerset West, Stellenbosch, and the Helderberg Winelands.
A Partner You Can Trust With Your Technology
Choosing a technology partner is one of the most important decisions your business will make. Here's why companies trust ProteaByte with the systems they can't afford to have fail.
Let's TalkProven at Scale
25+ years building systems that handle hundreds of millions of transactions a month. We've already solved the problems you're about to hit.
A Technology Partner, Not a Vendor
From fractional CTO to retained engineering team — we take ownership of outcomes, not just tickets.
Built for Scale and Failure
High availability, observability, and disaster recovery designed in from day one — that's how we hold 99.99% uptime.
Senior Engineers, End to End
You work with the people who design and write the code. Rigorous testing, clean architecture, and secure practices are non-negotiable.
Accountable in Production
We don't disappear after launch. We monitor, operate, and evolve the systems we build — for years, not weeks.
Right-Sized Engineering
Platform-grade when you need it, lean when you don't. A business website gets the same care as a trading engine — without the overhead.
Three Ways to Work With Us
Most of our longest relationships started as one of these and grew into a partnership.
Fractional CTO
For founders and boards who need senior technical judgement without a full-time hire.
- Technology roadmap and architecture decisions
- Hiring, vendor, and budget oversight
- Technical due diligence
Retained Engineering Team
For businesses whose platform is the business.
- A senior team that knows your systems
- Continuous delivery, month after month
- We monitor and support what we build
Defined Project
For a clear outcome with a start and an end, including websites and apps.
- Scoped and estimated before work starts
- Working software every few weeks
- Handover or ongoing support, your choice
Frequently Asked Questions
Common questions about custom software development with ProteaByte.
Yes. ProteaByte is a Cape Town software engineering company serving the Western Cape, with clients across South Africa and internationally. We specialise in scalable backend systems, integrations, and cloud platforms, and also build web and mobile applications. We work both on-site with local clients and remotely.
Cost depends on scope, complexity, and integrations rather than a fixed price list. A small mobile app or web platform is a very different investment from a multi-system enterprise build. We scope every project up front and give you a realistic, itemised estimate before any work starts — no open-ended billing.
A focused web or mobile product typically ships a first usable version in 6–12 weeks, while larger enterprise and integration projects run in phases over several months. We work in short iterations so you see working software early and often, rather than waiting until the end to see results.
Our speciality is large-scale, business-critical systems: scalable, high-availability backends, enterprise platforms, API and system integration, and cloud architecture across AWS, Microsoft Azure, and Cloudflare. The platforms we engineer and run process hundreds of millions of transactions a month at 99.99% uptime. We also provide technology partnership and fractional CTO services, plus Kubernetes, data and analytics, and web and mobile development.
Yes. We work with businesses as a long-term technology partner — as a fractional CTO setting technical strategy and architecture, through independent architecture reviews and technical due diligence, or as a retained senior engineering team that owns delivery and support over time.
Yes. While complex systems are our speciality, we also build professional business websites and mobile apps. Smaller projects get the same senior engineers and the same standards for performance, security, and SEO as our large platforms.
ProteaByte serves a wide range of industries across South Africa and internationally — including finance and fintech, accounting and tax, sports betting, gaming and casino, healthcare, retail and e-commerce, and logistics. In accounting, we're currently building an AI CFO platform that integrates with Xero and SARS.
ProteaByte is based in the Western Cape, South Africa, and serves clients across Southern Africa and internationally.
Yes — ProteaByte specialises in cloud architecture, migration, and DevOps across AWS, Microsoft Azure, and Cloudflare, including Workers, Zero Trust networking, Kubernetes orchestration, and serverless platforms.
Tell Us What You're Building
A platform that has to scale, a technology partner for the long haul, or a well-built website: whichever it is, a senior engineer will reply to you directly.
Phone
079 823 4093Location
Cape Town, Western Cape, South Africa
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