Ah but "Big Data" attracts the people who took a course on Spark and now see it as the tool to apply everywhere. It's turtles all the way down ;)
When I'm hiring I've settled on sticking with "Software Engineer" and gasp being as specific as possible on what I'm looking for. But nothing will ever be perfect, or even great.
Right, my "eats shoots and leaves" panda just put the comma in the wrong place; also remembering that one of the best engineers I ever had the please of working with was indeed "big"
(You can drop the "Big" if you have less big and want to appear less cringe)
You could also attach a specification to the title like "Senior Software Engineer: Data [Services/Infrastructure/Platform]"