As a Senior Back end Developer , you will be part of the Development team and your objetive will be building new features that fit the needs of the customers and end users. You will be responsible for: -Deliver new features and ensure they are passing your tests, and that they are scalable and well-documented within the committed timeframe -Deliver new features precisely according to the definition of done as set by you, your colleagues and product owners -Refine, estimate and document new features/problems clearly with your colleagues, the Product team and, in some cases, the rest of the company -Collaborate with our visual / UX designers and frontend developers to deliver the best quality -Contribute to innovation and continuous improvement of the way of working in the Development team -Ensure that external developers, building upon the inSided platform, have a solid developer experience