Custom Software Development

Our clients love thinking with us. We ask a lot of questions. We have a ton of experience. We've got good instincts. And we want your product to be great.

We Build Everything

For over 15 years as a custom software development company, we’ve been building successful software for clients in all industries. Here are a few areas of particular expertise

UX/UI and web design Denver

User Experience & Design

We don't begin designing until we understand your business, your goals, and your users. Our mature process facilitates that discovery.

More about Design >

Data and database design services

Data & Database Design

We offer all manner of data services, including advanced database design, complex data modeling, and data migration (ETL).

We are certified PostgreSQL experts.

More about Data Service >

Python and Django custom software

Python & Django

We're leaders in both Python and Django development, with many years of support to the community and a history of important contributions.

In addition to our full project support, we offer Python staff augmentation services.

More about Python Development >

Application security and testing

Application Security

Wouldn't you rather have security experts writing your code?

We provide application security services for clients in all industries, including: Financial, Health, and Public Sector.

More about Secure Software >

UX and Custom Software Development Clients

Some of our recent partners include:


Understanding MVP

Posted by Molly on Aug. 3, 2018, 10 a.m.

MVP, or Minimum Viable Product, is a method of developing software that prioritizes getting a simple version of your product released as soon as possible, gathering feedback, and then iterating on that product based on real-world feedback. This process emphasizes limiting work-in-progress (WIP), continual improvement, and frequent demos of the evolving product. But what does that actually mean for your project?


Understanding Agile

Posted by Molly on June 29, 2018, 10:05 a.m.

If you're looking to start a software development project, you're likely reading a lot about different strategies for planning your project. Since Fusionbox specializes in custom Python development, we've put a lot of thought into how we manage our software projects. Like many developers, we've chosen to use Agile development practices, but what does that really mean for your project? Agile does not abandon documentation or planning, but rather continues those processes throughout development, giving you the most flexibility and control over development of your project, which is especially useful if you’re new to software development.


We love working with creative, innovative people.

Browse our work to see what we have done for our clients. or bring us your idea and we'll help you make it happen!