We hire people from various development backgrounds: Java, .NET, Python, NodeJS. It is not the language but the seniority what matters to us.
You will act as a consultant to the customer by understanding and fulfilling their requirements, while communicating clearly (in English) with architects, developers, DevOps, quality engineers and project managers. Your solutions should be following best practices, be well tested and documented.
You would advise customers on technical topics on pre-sales calls. You could take part in technical interviews and mentoring less-senior developers.