Remote EDI/SAP Contractor

Seeking contractor(s) to build their EDI connection to SAP for the US market.

Ongoing EDI support/maintenance need beyond the initial backlog.
Additional EDI Support in the U.S. They have a backlog of customers they need on-board and will have ongoing EDI maintenance.
Have been trying to build a connection between SPS and their SAP system (older SAP version).
Orders currently go in manually until the above connection is complete. There is a bottleneck with SPS.
Need someone with helping to build this connection and that can assist with onboarding trading partners, they will be in communication with SAP. This person will need to know about connections, will need to write some documentation.
Primary EDI transaction sets include 846, 850, 855, and 856. Additional projects are expected, including a potential warehouse move, so experience with warehouse-related EDI transactions such as 940, 943, 944, and 945 would be a plus.
SAP IDoc experience is required.
They are using an older version of SAP, so experience with an older version of SAP is a plus.
They are currently partnered with SPS Commerce and are working to build/maintain the connection between SPS and SAP.
SPS handles the EDI mapping; these resources will be responsible for testing and technical setup/support.
Resources will need to work within the systems to ensure configurations and connections are properly set up and functioning.
Strong EDI testing/troubleshooting experience is needed.
This is a purely technical, hands-on role rather than a functional/business-facing EDI position.
There may be occasional early mornings to collaborate with the team in Europe.
Could become a longer-term/ongoing need as additional EDI projects come up.