Software Engineer with 7 years of experience

I'm a software engineer of around 7 years of experience, although I've been coding since a young age. My professional experience is in AdTech and I worked at Pinterest doing some billing pipeline work. I'm looking for work that is interesting in some way, either in the coding department or the product is something unique. Or in an area I'm less familiar with: e.g. mobile development so I can learn. For example, if you are doing something like err let's say: writing compilers, embedded coding, machine learning engineering stuff, research projects, teaching, FinTech. Or e.g. Haskell or a Rust job because they seem something very rarely hired for. Cheers.