Hello, As I don't know requirement but actually you mention APIs So, I'm surely to say I'm expert in back-end and front-end. I've 4.5 Years of experience in NodeJS/Mongo as well as frontend also.
Relevant Skills and Experience
NodeJS/Mongodb - 4 Years
Javascript/Anglular/HTML/CSS/Bootstrap - 1.5 years
Framework like : sailjs, Express other more ...
Proposed Milestones
$35 USD - Task not decided yet.
Additional Services Offered
$30 USD - As mention APIs but integration I'm also able to do it.
Please let us know which type of APIs, You want to create custom or want to use any framework ?