There are no contractual obligations for a minimum amount of time but we strive to have long-term engagements. This is why we offer very competitive rates for high-quality technology experts. Our experts prefer working on long-term projects where they become part of a team. The minimum amount of time that we aim for is 6+ months, but there is no commitment: during the one-month paid trial you can end the engagement whenever you want, with no notice, and after that with one month's notice.