[{"_id":ObjectId("5f33a6bafdb40e7c44a4e663"),"worker_id":"158250","employer":"139998","start_date":ISODate("2012-02-15T01:00:00.000+01:00"),"end_date":ISODate("2012-04-17T02:00:00.000+02:00"),"ord_id":484},{"_id":ObjectId("5f33a6bafdb40e7c44a4e665"),"worker_id":"158250","employer":"5794265","start_date":ISODate("2012-10-17T02:00:00.000+02:00"),"end_date":ISODate("2012-11-15T01:00:00.000+01:00"),"ord_id":486},{"_id":ObjectId("5f33a6bafdb40e7c44a4e667"),"worker_id":"158250","employer":"5794265","start_date":ISODate("2013-06-01T02:00:00.000+02:00"),"end_date":ISODate("2013-09-30T02:00:00.000+02:00"),"ord_id":488},{"_id":ObjectId("5f33a6bafdb40e7c44a4e666"),"worker_id":"158250","employer":"5794265","start_date":ISODate("2013-02-01T01:00:00.000+01:00"),"end_date":ISODate("2013-05-31T02:00:00.000+02:00"),"ord_id":487},{"_id":ObjectId("5f33a6bafdb40e7c44a4e664"),"worker_id":"158250","employer":"5794265","start_date":ISODate("2012-03-12T01:00:00.000+01:00"),"end_date":ISODate("2012-05-12T02:00:00.000+02:00"),"ord_id":485},{"_id":ObjectId("5f33a6bafdb40e7c44a4e668"),"worker_id":"158250","employer":"5794265","start_date":ISODate("2015-06-01T02:00:00.000+02:00"),"end_date":ISODate("2015-11-30T01:00:00.000+01:00"),"ord_id":489}]

db.collection.aggregate([{$lookup:{from:"collection",let:{id_lav:"$worker_id",curr_ord_id:"$ord_id"},/** 'curr_' is for current*/pipeline:[{$sort:{ord_id:1}},{$match:{$expr:{$and:[{$eq:["$worker_id","$$id_lav"]},{$gt:["$ord_id","$$curr_ord_id"]}]}}},{$limit:1}],as:"next"}},{$unwind:{path:"$next",preserveNullAndEmptyArrays:true}}],{allowDiskUse:true})