The full answer
Internship openings depend on the projects and teams that can support them at a given time, which is why they are not always listed. If none are open when you look, check back later.
When an internship is listed, apply through the careers page in the same way as for any other role. Include your CV and links to anything you have built, designed or tested, such as university projects, open-source contributions, a portfolio or apps you have published.
Creuto's client work is delivered by senior-only engineering teams, so strong applications show a willingness to learn from experienced colleagues and to take quality seriously from the start.
If you are interested in a particular area, such as AI engineering, mobile development, UI/UX design or QA and automation, say so in your application. It helps the team understand where you would fit.
Even if no internship is listed, the careers page shows the kinds of roles Creuto hires for, from engineering and design to QA and product, which gives a good sense of the skills worth building in the meantime.