16 of 16 VoIP Jobs in the City of London

background in network monitoring, capacity management, and incident response . Hands-on experience with network security frameworks , firewall configuration (Cisco ASA, Palo Alto, Fortinet, etc.) , and telephony (SIP/VoIP) systems. Familiarity with cloud and hybrid networking (Azure, AWS, GCP) environments preferred. Strong understanding of ISO 27001, PCI-DSS , and ITIL-aligned service delivery processes. Leadership & Soft Skills Strategic thinker More ❯

background in network monitoring, capacity management, and incident response . Hands-on experience with network security frameworks , firewall configuration (Cisco ASA, Palo Alto, Fortinet, etc.) , and telephony (SIP/VoIP) systems. Familiarity with cloud and hybrid networking (Azure, AWS, GCP) environments preferred. Strong understanding of ISO 27001, PCI-DSS , and ITIL-aligned service delivery processes. Leadership & Soft Skills Strategic thinker More ❯

to end-user hardware & software and network devices. Advanced experience and understanding of structured cabling (tidy cable management is a must ). Advanced experience installing and maintaining networking and VoIP equipment. Advanced experience and knowledge of working with the Microsoft 365 Platform. Advanced experience in clean workstation installations (tidy cable management for end-user devices, such as computers, monitors, printers More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

Strong software development experience in C/C++ on Linux, with a solid understanding of the software development lifecycle. Expertise in software architecture for IP routers and network devices (VoIP, DSL, GPON, DOCSIS, Wi-Fi), and familiarity with protocols like TCP/IP, SIP, RTP, PPP, DHCP, IPv4/IPv6, OpenSync, OVS, TR-069, and WebPA. Excellent communication skills, able More ❯

and on-site. Expect a busy, varied workload including: Delivering 1st & 2nd line technical support with professionalism and pace Troubleshooting hardware, software and networking issues (Windows, macOS, AD, Exchange, VoIP etc.) Proactively managing Microsoft Exchange, Active Directory, cloud storage, DR, VoIP and more Managing tickets and resolving issues within SLAs Maintaining accurate client and system documentation Recommending improvements and contributing More ❯

and on-site. Expect a busy, varied workload including: Delivering 1st & 2nd line technical support with professionalism and pace Troubleshooting hardware, software and networking issues (Windows, macOS, AD, Exchange, VoIP etc.) Proactively managing Microsoft Exchange, Active Directory, cloud storage, DR, VoIP and more Managing tickets and resolving issues within SLAs Maintaining accurate client and system documentation Recommending improvements and contributing More ❯

position? Strong C++ development skills Background in mission-critical or telecommunications software Familiarity with Motorola DCS, CADI, or similar system interfaces Strong grasp of IP, TCP/UDP, and VoIP (SIP/RTP) networking fundamentals Experience with Linux-based development and virtualisation tools Working knowledge of CI/CD pipelines, version control, and secure coding practices Excellent communication skills and More ❯

position? Strong C++ development skills Background in mission-critical or telecommunications software Familiarity with Motorola DCS, CADI, or similar system interfaces Strong grasp of IP, TCP/UDP, and VoIP (SIP/RTP) networking fundamentals Experience with Linux-based development and virtualisation tools Working knowledge of CI/CD pipelines, version control, and secure coding practices Excellent communication skills and More ❯

directly contribute to saving lives and keeping societies safe. Key Responsibilities: Design, develop, and maintain telephony and communication software solutions. Work with modern protocols and technologies (e.g. SIP, RTP, VoIP, PBX systems, messaging frameworks). Collaborate with cross-functional Agile teams to deliver high-performance, scalable, and resilient systems. Work with our partners and customers to build tomorrow's solutions More ❯

Your Skills and Experience Familiarity with various network technologies, including but not limited to: Local Area Networks (LAN) Wide Area Networks (WAN) Virtual Private Networks (VPN) Voice over IP (VoIP) Network Monitoring Tools Wireless Networking (Wi-Fi Standards) Software-Defined Networking (SDN) Network Security Technologies (firewalls, IDS/IPS) Network Switches Zscaler/ZPA & Zero Trust Support Firewalls Wireless LAN More ❯