Software Developer

We are looking for a software developer with Trading Software Experience. We need someone that can assist with coding software that has been developed in Excel for a SaaS environment for external clients to be able to pay to subscribe, have a user database that will be connected to payment gateway API.
The current environment Upgrade to see actual info - We have a couple of different projects at the Upgrade to see actual infont that require different skills including C++ etc.

Looking for someone that has worked with trading software before (Preferably) but can code systems that can pull an API from Trading Software and put it on a gated system for the front end user.
- write the programming code, either from scratch or by adapting existing website software
- Wordpress environment for front end user preferred but not essential
- Coding from excel functions
- Developing and designing RESTful services and APIs.
- Troubleshooting issues and problem solving as necessary.
- Developing functional databases, applications and servers to support our websites on the back end.
- Fluent in CSS (Foundation or Bootstrap), JavaScript and HTML, with an understanding of CSS preprocessors including Sass and LESS.
- Strong knowledge of Linux, PHP and MySQL, with working understanding of MongoDB, PostgreSQL, AngularJS, Express.js, Oracle, React, Ember and Node.js.
- experience in working with languages such as Java, .Net, Python, PHP or Ruby.
- Working experience as a Full Stack Developer.
- Experience working with server technologies including Apache, ISS, Node.js, Nginx and J2EE.
- Experience in API design and development.
- Strong knowledge of data structures, system design and algorithms.