they described themself as a 'senior developer' but said they have 15 years experience. That's more experience than I would expect for someone with the job titl

they described themself as a 'senior developer' but said they have 15 years experience. That's more experience than I would expect for someone with the job title of 'Senior Engineer'. Their job title might well be higher level - maybe 'Staff'. All these job titles apply to 'senior' people.