Blockchain Integration Specialist (100% Remote)

Why are you interested in working at Bitfinex? *

How do you rate your own skills with blockchain integration? *BeginnerIntermediateAdvanced

How do you rate your own skills with Node.js? *BeginnerIntermediateAdvanced

How do you rate your own skills with micro-services? *BeginnerIntermediateAdvanced

How do you rate your own skills with MySQL? *BeginnerIntermediateAdvanced

How do you rate your own skills with MongoDB? *BeginnerIntermediateAdvanced

How do you rate your own skills with Redis? *BeginnerIntermediateAdvanced

Useful links (e.g. GitHub) *

Tell us about an interesting project you worked on recently (could be spare time open source project) *

Do you have any remote working experience? *

Should we offer you a position, when can you start? *

Considering the role is remote, from which country will you be working? *

We want to help you to make sure that you are a good fit for the role and created a self-assessment for candidates. If you need more than 10 minutes to answer the following two questions or need a lot of googling, your current JS skills are not sufficient for the role
1) Convert the code below using any lib of your choice to be more readable
db.getData((err,data)=>{ if(err){ console.log(err) return } data.a = "test" data.b = 1111 db.processData(data,(err,data)=>{ if(err){ console.log(err) return } db.saveData((err,data)=>{ if(err){ console.log(err) return } console.log("finished") }) }) }) *

2) What is the output of this program and why?
let z = 4153000000000000000 + 99
console.log(z)

*

3) Which RPC endpoint bitcoind provides to get the list of all UTXOs *

4) Which library/method you would use to sign a raw Ethereum transaction *

5) Please describe how the address/nonce system work in Ethereum *

6) Could you explain how you would manipulate (adding, subtracting..etc) currencies (financial numeric values) in JavaScript? *

Blockchain Integration Specialist (100% Remote)

Personal information

CV / Resume *

Cover letter

Questions