MongoDB ReduceMap An Array Property that Contains Another Array - mongodb

Question

I'm still new to MongoDB and non-relational databases in general so if the answer to my question is "Dude, you're thinking about your data in the wrong way", please let me know.
That being said, here's what I'm after. I have the following data:
{
"_id" : ObjectId("549b26b370b452eeb6acecd3"),
"user" : "54530e03c575dc86d61d22f8",
"workHistory" : [
{
"description" : "",
"endDate" : null,
"name" : "My Company",
"skills" : [
{
"_id" : ObjectId("549b29c970b452eeb6acecd4")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecd5")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecda")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecdb")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecdd")
},
{
"_id" : ObjectId("549b29c970b452eeb6acece9")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecea")
},
{
"_id" : ObjectId("549b995b70b452eeb6acecf9")
},
{
"_id" : ObjectId("549b999470b452eeb6acecfa")
},
{
"_id" : ObjectId("549b9ab670b452eeb6acecfb")
}
],
"startDate" : "2013-10-01"
},
{
"description" : "",
"endDate" : "2013-10-01",
"name" : "Another Company",
"skills" : [
{
"_id" : ObjectId("549b29c970b452eeb6acecd4")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecd5")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecdb")
},
{
"_id" : ObjectId("549b29c970b452eeb6acecdd")
},
{
"_id" : ObjectId("549b29c970b452eeb6acece1")
},
{
"_id" : ObjectId("549b29c970b452eeb6acece9")
},
{
"_id" : ObjectId("549b995b70b452eeb6acecf9")
}
],
"startDate" : "2012-04-01"
},
.....
What I am trying to do is resolve that data I can list the actual skill names under "skills" instead of just object ID's. For reference here's the skills collection:
/* 0 */
{
"_id" : ObjectId("549b29c970b452eeb6acecd4"),
"name" : "CSS",
"description" : ""
}
/* 1 */
{
"_id" : ObjectId("549b29c970b452eeb6acecd5"),
"name" : "HTML5",
"description" : ""
}
/* 2 */
{
"_id" : ObjectId("549b29c970b452eeb6acecd6"),
"name" : "Ruby",
"description" : ""
}
/* 3 */
{
"_id" : ObjectId("549b29c970b452eeb6acecd7"),
"name" : "Ruby on Rails",
"description" : ""
}
I've tried looking into using MapReduce to do some kind of join, but I can barely wrap my head around it and all the examples I'm finding don't have data this complex.
What's the best approach for getting my desired result? Side note: I'm not 100% sure that simply embedding the skills in the "skills" property is the right approach. I'm trying to keep them separate because the skills may be listed in other areas of my application separate from work history.