Server Core Developer (Java/Erlang)
Help us change the way the world communicates.
If you are passionate about writing server code and being part of an international team this is your opportunity.
Job Responsibilities
- Write logical, simple and performance oriented code in Java or Erlang
- Build unit tests and performance test driven code
- Code towards a zero maintenance system
Job Requirements
- BS in computer science or Computer Information Systems, or equivalent. MS or PhD is a plus
- Strong Java or Erlang programming and debugging skills
- Knowledge of TCP/IP – UDP/IP and experience with network programming
- Proficiency on XMPP
- Knowledge with Key-Value Databases
- Experience building and scaling distributed, highly available systems
Bonus Points
- You are a contributor to open source projects and like “hacker culture”
- You have experience or background in system administration, security and operations
Fast & Functions Challenge (Java or Erlang)
Write code that implements the described functions to be executed as fast as possible:
- Build a function that given a list of Integers in the range [-65000,65000], the function
returns true if any subset of the list summed is equal to zero. False otherwise.
Example:
■ [0, 1, 2, -3] returns true. As 1+2+(-3)==0.
■ [1, 2, 3, -8] returns false. As no subset summed is equal 0.
■ [1, 4, 5, 2, -3] returns true.
- Build a function that given a list of Integers pairs in the range [-65000,65000], that represents {X, Y} Coordinates in a Plane. The function returns the two closest pairs.
○ Example:
■ [{0,0}, {1,20}, {5, 2}] returns [{0,0}, {5, 2}]
■ [{-10,10}, {1,5}, {4, 3}] returns [{1,5}, {4, 3}]
Start date: ASAP
Location: Barcelona – First Mobile World Capital!
Offer: We offer creative freedom, competitive salary including employee stock option program, as well as fun work environment in Barcelona city center with a fruit stocked kitchen and more.
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