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  • · 154 views · 19 applications · 25d

    Telecom Software Engineer

    Part-time · Full Remote · Worldwide · 3 years of experience · Advanced/Fluent
    About Us V-Spot is a fast-growing London-based startup with active operations in Switzerland and the UK. We specialize in cutting-edge cybersecurity services, blockchain security, and custom backend/web solutions. We’re building a global team of top...

    About Us

    V-Spot is a fast-growing London-based startup with active operations in Switzerland and the UK. We specialize in cutting-edge cybersecurity services, blockchain security, and custom backend/web solutions.

     

    We’re building a global team of top engineers and security minds — people who thrive on solving deep technical challenges and aren’t afraid to work close to the metal.
     

    What We’re Looking For

    We’re looking for a sharp, experienced Telecom / VoIP Integration Engineer to join us on a remote, project basis. You’ll be working on low-level telecom integrations (SIP, RTP, DID, VoIP APIs), helping us set up and manage scalable call infrastructure for programmatic voice processing.

     

    This is not a plug-and-play Twilio job — we’re looking for someone who knows how telecom actually works.

     

    What You’ll Do

    • Integrate and configure SIP trunks, DID numbers, and VoIP providers
    • Set up and manage PBX systems (e.g. Asterisk, Kamailio, FreeSWITCH)
    • Define call routing logic, IVRs, call forking, failover handling
    • Work with developers to enable real-time call streaming and backend connectivity
    • Troubleshoot SIP-level issues and optimize signaling flows

     

    Requirements

    • Deep understanding of SIP, RTP, VoIP protocols, and signaling
    • Hands-on experience with:

      • Asterisk, FreeSWITCH, Kamailio, or OpenSIPS
      • Telecom tools like sngrep, Wireshark, SIPp
      • Managing SBCs, gateways, NAT traversal, STUN/TURN configs

       

    • Familiarity with:

      • Telecom APIs (Twilio, Plivo, SignalWire, Telnyx)
      • DID provisioning, call routing, failover logic

       

    • Bonus: Understanding of eSIM/SIM management, mobile infra
    • Bonus: Comfort working with backend languages (Python, Go, Node.js)

     

    What You Get

    • Project-based contract with remote flexibility
    • Competitive compensation 
    • Direct access to founders and a technical-first culture
    • Fast decision-making and high-impact work
    • A potential path to long-term collaboration in a core engineering role

     

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