Frontend (React), and Javascript

We're a startup (30 people so far) that is growing quickly! We're writing software that uses machine learning to automate the creative process of producing video content. We've found that what we're building is very attractive to marketing teams from lots of different organizations and we've got tons of interesting search, NLP, artificial intelligence, video rendering, and web scaling technical challenges. Right now, we're hiring:

Frontend Engineer: Contribute to our large, beautiful single-page app, using React, Redux, ImmutableJS, and more! https://lumen5.com/careers/opportunity/?gh_jid=4040744003

Javascript Engineer: We're building a powerful javascript library that handles all of our video rendering (in webgl), and we need the testing, toolkit, architecture and data structures expertise to continue to make it awesome. Posting here: https://lumen5.com/careers/opportunity/?gh_jid=4040741003