Senior Developer

CALLUP NET · Posted 2026-10-20

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  • Senior Developer

    We are looking for someone who is looking to do something else..
    We seek for a team player to inspire and be the technological leader of the company’s software development team.
    We offer you:
    ·           Great working place with Dynamic environment
    ·           The job has vast content and wide responsibility
    ·           Leading new edge products developments of the company
    ·           Place to grow and develop
     
    Requirements:
    Job description: Senior Software Developer
    We seek for a team player to inspire and be the technological leader of the company’s software development team.
    We offer you:
    Great working place with Dynamic environment
    The job has vast content and wide responsibility
    Leading new edge products developments of the company
    Place to grow and develop
    Requirements:
    At least 5 years of experience
    Main programming language: Pure java. 
    Fields of expertise: Servers, multithreading, networking
    C/C++, Delphi, other languages – advantage.
    Mobile OS programming (Android, iOS, others) – big advantage.
    Ability to learn and implement protocols and standards.
    Telecommunication experience: SS7 Signaling, OMA protocols, Diameter and/or RADIUS protocols, Voice applications – big advantage.
    Networking experience (IP, SCTP, UDP, HTTP, proxies) – advantage
    Experience with cryptography – advantage

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