.Net Developer - remote (вакансія неактивна)

We are looking for senior developer that could help us with the business logic and utilities layers. We do have our standards so the code needs to be written following some pre establish guidelines (nothing hard, pretty straight forward guidelines).
The business logic and utilities layers access the database directly; there is a layer responsible of that.
Basically we are looking for the typical performance oriented developer that love to write code. This code does not have UI development nor database development. I imagine the typical back-end developer that put headsets and writes a lot of code every day.
We work on Account Payables (AP) and Account Receivables (AR)

Development Business logic on back end system.
Web technologies;
Rest services;
Database: SQL Server; Postgres;
Amazon RDS; Amazon Redshift;
Lucene; Solr;
Elastic Search; Mongo DB.
Ability to pass interview in English.