About I|O

"It is a myth that individuals start companies. Teams start companies… especially innovation driven enterprises."
- Bill Aulet

At I|O we conceptualise, build and commercialise tech innovations that we believe will bring the power of the internet to the world in new and useful ways. Our ultimate vision is to harness our relentless curiosity and yearning for learning to become bold discoverers and problem-solvers for society.


Consent is a stealth-phase UK based client doing incredible things in the personal information space. Together we’ve built a highly scalable platform augmented by the Ethereum blockchain. Our experience in information security, cryptography, and complex DevOps environments has been crucial in the ongoing success of the project.


Proper deployment and integration are what separates us from the animals. Our infrastructure is defined in code, saved in git repositories, perfectly reproducible, atomic and always scalable. Smaller projects get to run on our shared infrastructure and larger ones have custom setups. We are cloud agnostic but do prefer the Google cloud.

Progressive Web Apps

Progressive Web Apps (PWAs) is how we need to get the next billion emerging market mobile phone users truly engaged online. PWAs are far better at reaching and engaging the mass market than traditional native apps, because they are far more cost-effective for data-strapped consumers. They work on all operating systems, browsers and phone types, in the browser like a website, yet have all the bells and whistles of native apps such as push notifications - which should be standard for all operating systems very soon. It’s the way forward for the coming decade.

An illustration graphic of Tephra open-source software.


A RADIUS server that integrates deeper into applications. It has been tried and tested in production with major bursts of RADIUS traffic. RADIUS is an old school protocol, Tephra brings it closer to your modern application.

View in Github

A screenshot of the Passmarked website displayed on a MacBook desktop


Passmarked was born out of our quest for perfection and love of quality. There was no way to determine whether anyone’s work stood up to standards and best practices so we created it. Passmarked scores how well your site works and a better score means a better performing site driving more sales and user engagement.

Visit passmarked.com

An illustration representing NProbe Collector Open-Source software.

NProbe Collector

Nprobe Collector was written in Go. It analyses and aggregates TCP traffic according to its source and destination IP addresses using the NetFlow protocol. The objective is to see how bandwidth was used and then potentially treat certain locations differently in terms of pricing.

View in GitHub


Ultimately, everything we build interfaces with people. From concept all the way through to quality assurance, we take note of why and how people use things and try to improve the journey. Most users are unaware of what a good user experience is, but everyone knows what it is not. We aim to allow your users to engage with you, blissfully ignorant.

Software Development and Engineering

15 years of software development experience can turn your ideas into reality. We work with large multinationals and small startups to build scalable, amazing software. We don’t shy away from difficult problems. Speak to us if you’re deploying satellite solutions to rural Nigeria or building the next mobile retail experience in New York.

The Rover app screenshot displaying on an iphone screen.


Design is an integral part of the process of conceptualisation, development and execution of ideas at I|O. It is not a separate process or an afterthought. I|O is home to a team of talented and dedicated designers who constantly try to raise the bar on interactive digital design, product design, user experience, branding and brand development, and other areas of design that bridge the gap between tech and humans.

Meet the team from I|O.

Meet the Team

The I|O team is a collective of diverse tech enthusiasts, from business visionaries, product innovators and coders to designers and marketing specialists. Together they think up new and useful ways to bring the power of the internet to society.


As great believers in the collective power and value of the Internet, we are hedging our bets that Blockchain is the one of the world's greatest new technological revolutions - one that is here to stay. And we're not just watching from the sidelines, we are joining the revolution. We’ve built production systems on top of Ethereum, the fastest growing blockchain, and understand how the blockchain and crypto-currencies can enable previously impossible businesses.

The Rover app screenshot displaying on an iphone screen.


Discovery has become too easy. 50 years ago, before the Internet and GPS, people explored the world around them, often walking somewhere just to see what was there. Rover is an experimental app that tries to reignite a sense of exploration and problem solving.

Can you find one of our fascinating locations when the only piece of information you’re given is how far away you are? Once you’re close enough we’ll tell you why you’re there.

App coming soon


There are three fundamental challenges in making the Internet accessible to everyone: Internet capable hardware (eg. a mobile phone), network coverage and the cost of data.

We’re working with partners to provide cost-effective internet access and free life-changing content to the underdeveloped communities who need it the most.

Illustration depicting Hurt open-source software.


Embracing failure is an important part of growth. Hurt is a collection of software built to stress test our platforms to the breaking point. We use Hurt to identify our weaknesses, fix them and then Hurt ourselves again until we are the most scalable and resilient we can possibly be.

View in Github


Breakpoint Vantage is a service provider to the financial services and telecommunications industry. Our design and communications team worked with them to develop a concise methodology to communicate their products and develop a design language for their business.

Illustration depicting Hurt open-source software.


Lava is a stadium grade Wi-Fi hotspot solution. Purposely built to support large amount of concurrent connections and the widest range smartphones. It includes a variety of authentication methods including Social Media Oauth logins, rich media such as video streaming to phones over Wi-Fi and is built to be customised to specific needs.

Contact Us

[email protected]
+27 (0)21 447 8855

31 - 33 Loop Street,
Cape Town City Centre,

Map to our offices

Work for Us

I|O is hiring! We do pretty interesting work with new technologies such as PWAs, Machine Learning, AI and Blockchain, and we're big on web standards, so if that sounds good to you, check out our new job ads.

We're looking for experienced web developers with a passion for beautiful code and helping tech startups across Africa to develop their products.

The I|O Powwow

Keep aside the last Friday afternoon of every month, from 3pm - 5pm for a short power talk from great speakers, followed by some good music and drinks with like-minded people from our industry, in and around Cape Town.

We will start off the powwows with topics related to Design, Front-end Development, Backend Development and DevOps but would likely grow to include topics such as Startups and Creative Thinking. All talks and material will be published online. Our list of speakers will include the likes of Johann du Toit and Chris Pitt.

Please join us for an afternoon of fun with design and tech.

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Graphic / UX Designer

We love to hear from all kinds of designers, graphic, UX, UI, illustrators, 3D designers, animators and more....

If you can totally knock it out of the park with design, then please have a look at our work. If you think we are your ideal match, then compile your work and send it on to us.

Our ideal candidate has knowledge of all the latest software releases to produce the best kind of work; strong conceptual abilities; experience in web design and UX best practices; passion for innovation; and should be able to push creative boundaries while staying within CI guidelines.

We need a highly motivated individual who takes pride in their work, can deliver work of a high quality and can work within a team as well as on their own. In our line of work, a bit of coding will always come in handy, but we do have a team of coders to support our design team. If you are a designer who likes to push yourself, work hard and learn a lot, then this is for you.

If you are interested please send your portfolio to [email protected]. Include any relevant experience and information on projects that you have worked on. If you partake in any online communities such as Behance please include your relevant details. Look forward to meeting you!

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Machine Learning Engineer, with strong development skills

I|O is a well established Cape Town technology company, with a unique skill in building new startups and innovative technologies. We are currently looking for an engineer with experience in the data science field and has examples of models and machine learning systems that she/he has built and deployed.

I|O plays in the internet technology space, with projects related to mobile money gateways in Africa, financial blockchain solutions, sophisticated self-learning machine learning betting systems, web standards test suites, PWAs and even township WiFi networks.

We are looking for a mid to senior level engineer that has experience in NodeJS/PHP (other frameworks and languages are always beneficial) to be able to quickly plug in and be productive with the current set of projects in the company.

The type of individual we require would have a keen interest in data science/machine learning, and growing into a role that would continue to expand to involve more of this kind of work.

The role would assume some experience in all the stages of the life cycle of a machine learning model:

  • Data analysis / reporting
  • Model training/validation and testing
  • Experience in building/running scalable infrastructure around the models

The individual is expected to know and use tools/libraries such as numpy, matplotlib, scipy, pandas, Tensorflow and should also ideally be experienced in working with IPython notebooks for research purposes.

Some seniority/initiative would be expected to lead and drive a "data-first" approach within the company and for its clients. The individual would therefore ideally be able to lead the data science side of projects while teaching and mentoring during the project on all the learnings.

    How to apply:

    • 1. Please email us at [email protected] with an introduction to yourself.
    • 2. We'd love to see some examples of your past machine learning work out in the wild helping solve some interesting problems; IPython notebooks more than welcome!
    • 3. Include your CV or Resume for a full list of your work experience and journey thus far.

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    Senior Front-End Engineer, with PWA experience

    Cape Town-based technology innovations company I|O is looking for a strong JS driven front-end web developer. The ideal candidate is ownership driven, proactive, works well in a team, is a great communicator and is really into web standards.

    We are looking for a strong web developer with a customer first mentality, who puts great care into the product he or she is building and has quality and stability high up on their list of priorities.

    You will be able to enjoy a relaxed working atmosphere, with free desk space, cafe-style tables, breakfast foods, good coffee, flexible working hours, great people and a very central location in Cape Town, amidst loads of cafes, restaurants and bars.

    If you are interested please send us your details to [email protected]. Please include any relevant experience and information on projects that you have worked on. If you partake in any online communities such as StackOverflow or if you have a Github profile, include your relevant details.

    Responsibilities include, but are not limited to:

    • Minimum 4-6 Years of Experience in Software Development
    • Strong Fundamentals of Data Structures and Algorithms
    • Experience in Javascript, Node.JS, MySql
    • Experience in any of the frontend frameworks like Angular or React
    • Recent experience in building Progressive Web Apps
    • Experienced in handling small teams
    • Understanding of microservice or distributed architecture
    • Understanding of async programming. Knowledge in handling messaging services like pubsub or streaming (Eg: zeroMQ, rabbitMQ, Google Cloud Pub/Sub)
    • Understanding of end to end development including deployment and monitoring
    • Understanding of mobile application development (iOS/Android)
    • Has good debugging skills
    • Has good analytical & problem-solving skills

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    Skilled Laravel Developer

    I|O is looking for a mid to senior level PHP developer with strong experience in Laravel to oversee the development and maintenance of new projects. You'll be tasked with creating standalone web-services that power front-end projects, as well as fully integrated applications.

    The ideal candidate can recommend best practices, has a good understanding of testing software and comfort in managing their code in a Git repository with a branching workflow. It is important to us that the candidate has mastered Laravel 5 and higher; has higher level knowledge of relational databases such as MySQL; can set up, maintain and optimise servers through Laravel Forge and deliver robust and fault-tolerant solutions to unique development problems.

    Excellent verbal and written skills are needed as at times it will be necessary to communicate with our clients and/or our own development teams.

    An added bonus for us would include knowledge of other MVC frameworks, API development and knowledge of project management.

    Our working atmosphere is relaxed with free desk space, cafe-style tables, breakfast foods and good coffee. Enjoy flexible working hours and great people, centrally-located amidst the restaurants and bars of Cape Town.

    If you are interested please send us your details to [email protected]. Please include any relevant experience and information on projects that you have worked on. If you partake in any online communities such as StackOverflow or if you have a Github profile, include your relevant details.

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    Hand Coder, Wanted

    We are looking for an HTML & CSS expert. A master of sorts. A hand coder, if you will.

    The ideal candidate should be able to apply his skills to all web interfaces including responsive design with minimal interference from the design team and take verbal instructions.

    A thorough understanding of usability and web standards is needed.

    We welcome a team player, who can put his head down and hand code like a boss, but still produce beautiful results.

    Nuff said.

    All hand coders, apply to [email protected]

    * Please include any relevant experience and information on projects that you have worked on. If you partake in any online communities such as StackOverflow or GitHub, include your relevant details.

    * You will be able to enjoy a relaxed working atmosphere, with free desk space, cafe-style tables, breakfast foods, good coffee, flexible working hours, great people and a very central location in Cape Town, amidst loads of cafes, restaurants and bars.

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    Skilled Web Developers

    Do you frequently ask yourself 'What is this new thing?'. Do some of these tickle your fancy?

    Node.js, PHP, Golang, Python, Java, MySQL, Laravel, HTML, CSS, JavaScript, Vue, React, Redux...

    We are always on the lookout for keen web developers who fit our culture. Our aim is to build good quality software for both our internal projects and clients. We pride ourselves on following the newest trends and technologies out there and therefore we hire developers who follow what's new in the industry.

    So, whether you are a back-end, front-end or full-stack developer or a junior, intermediate or senior, we just want to see if you are good or not, so put your money where your mouth is and send us your work.

    An introduction via email to [email protected] will start the process and please include a CV, your Github profile and any other information about yourself.

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    Digital Project Manager


    Do you have a collaborating personality? Do you connect well with people? Can you take a leading role? Can you speak up when needed? Are you self-motivated? Are you an excellent planner? Can you leverage your team to do accurate cost estimates? Do you scope well? Do you plan for effective testing in your projects? Can you spot issues and resolve them quickly and efficiently? Are you technically inclined?

    We are looking for a digital project manager to join our team. Write to us about your work experience, the methodologies you follow, the size of projects you have worked on and the supporting software technologies you use to manage your teams and projects.

    Send your work, CV, and information to [email protected]. We would love to hear from you.