FYI your Lead Data Engineer role and Data Engineer role are identical except for the job title and both mention Lead Data Engineer in the job description.
They did this with Resident Evil Village - I thought that would be an awesome experience to play it on my underpowered work laptop - it just didn't work though, not sure if it didn't like my browser or their servers were overloaded.
I use mailchimp at work, it's feature full, but seems to be struggling with our list size, and isn't the cheapest.
Are there any cheaper solutions out there that have similar feature sets (including split testing campaigns), and are designed to scale to list sizes greater that 1m?
Something like handlebars or liquid?