Solicité el puesto a través de un captador. El proceso duró 4 semanas. Acudí a una entrevista en Form3 (Londres, Inglaterra) en sept 2020
Entrevista
One of the best interview processes I've ever experienced. They know what they're looking for, and don't waste neither yours or their time. Efficiency aside, it's really enjoyable, they're incredibly responsive and feedback is ample. It's a 3 stage process:
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1.Internal recruiter screening:
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Very straight-forward, just checking that you have experience with Go and distributed systems
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2. Take-home test
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Asked to write a Go client for one of their API endpoints. As long as you have solid Go + Docker + unit/service testing experience and have written 1-2 clients in the past, this is relatively easy. Took me about a week to write, coding mostly in late evenings.
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3. 1.5 hour interview
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Three consecutive interviews with with 3 different engineers:
a. "MR-like" interview of the Go-client. They're trying to understand how well you know Go and how well you respond to feedback.
b. General questions around networking (TCP/IP, auth, HTTP, SSL, ...). They're trying to understand if you master the theory of the networking stack.
c. Live debugging exercise of a distributed system. They're trying to understand if you have in-depth experience with highly-scalable distributed systems & good problem-solving skills.
Definitely consider applying; at a minimum you'll enjoy it and probably learn something on the way. At best, you'll get a chance to work with some really smart people, some really good tech and a company with high growth.
Preguntas de entrevista [7]
Pregunta 1
What are some alternatives to TCP and how would you use them?
You're given a diagram of a distributed system (Load Balancer, API Gateways, Service Mesh, services, logging, monitoring). You're told that a client is experiencing a high volume of 5xx. Find the route cause and ways to address it.
Envié una solicitud electrónica. Acudí a una entrevista en Form3
Entrevista
Applied directly via their job application system.
Their standard process is: call with their recruiter, then submit a take home exercise. Only then you will have an interview round with their engineers
Preguntas de entrevista [1]
Pregunta 1
The take home exercise is either hit or miss.
I was not willing to spend many hours to learn the specific skill required for this test, and then apply it.
If you happen to already have the skills required for this test, then this might be doable in maybe 4+ hours?
Either way, you are supposed to make a significant time investment before even interviewing with their engineers.
The feedback I have received for the take home was basically useless, along the lines of: you did not complete the task, we were expecting more.