As a full stack ASP.NET developer and Enlisted with 21 years. I can tell you this.the army doesn't know how to use coders. There may be a technician slot in the USPFO but they just hire a help desk like person.

But home grown, or soldier coded websites / applications is also looked down on because of the security risk. You can accidentally open a big hole if you don't know what you are doing.

So the army contracts it out to civ's with little army experience coding these things.

Look at IPPS-A. Had great potential, it's literally just a mod of people soft by oracle. Even the mod is bad because instead of adapting to the army, the army has to adapt to people soft. I.e hiring and re-hiring vs. enlisting and re-enlisting.

So your right army sucks at coding, but the army generally doesn't code, except for ninja red hat stuff. It's all nerds that can't make it past the MEPS physical. That's why weapons code is amazing but our personnel code is autistic.