I need Facebook page promotion (i.e. increase in likes of page and engagement)

We are working on a project that is active across multiple social media platforms. We are finding it difficult to grow our Facebook page, and are in need of a specialist to help with this.

We are looking to specifically engage young people (16 - 26) from the UK on topics relating to STEM (Science, Technology, Engineering, Maths). In line with this, we are looking for someone who can help us grow our audience, with REAL followers that will hopefully engage with the content we provide.