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You can experience powerful custom software solutions to improve your business.

Build a web application so that you can access your software when you need it.

Your data is precious. We’ll help you Protect it.

Got an existing project that needs some love? We’re happy to work with pre-existing and legacy systems.

We specialise in database driven web applications that meet complex business requirements in reporting, decision support, and analytics.

Does your project require the lastest? We can build react.js apps, video chat systems, almost anything you can dream up.

We love software, tech, and ... software!

Smart Appications.

That Work.

We’ve never met a problem we didn’t like. Getting a custom built software solution means that your application will work exactly the way you need it to. We have experience with a huge range of technologies.

We love this stuff so you don’t have to.

Successful Projects



National Awards


We were Featured!

Apparently we’re “a prime example of young talent harnessing that opportunity in Ballarat”. We had heaps of fun filming with the NBN crew and chatting about how we use modern internet technologies to solve real problems.

You can read all about it on the NBN blog

Locally Owned. Locally Operated.

Locally Built.

Retsim is a locally owned Software Development company based in Ballarat. We specialise in delivering quality, affordable software applications. We get a kick out of solving difficult problems, designing cool algorithms, and building trust with our clients.

We win awards!

We won the 2016 Govhack Victorian State Award for our project using data from the Royal Comission into Family Violence and the National “Inspired by Research Hack” Award for providing inspiring insights into complex data.

The local newspaper was pretty impressed.

Our Team

Lewis Lakerink

Lewis Lakerink

Director/ Lead Developer

Lewis specialises in efficient algorithm design and finding elegant solutions to complex problems. His technical understanding includes low level machine code optimisation through to high level enterprise software design.

Asher Leslie

Asher Leslie

Director/ Developer

Asher is a web application developer with expertise in server administration and design, database engineering, user experience design, front-end web application development, and project management.

Get In Touch

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0430 107 043

© 2017 Retsim Pty Ltd.