Voice Engineer (VoIP)

Location: Not specified; the company is Luxembourg-based and operates mainly across Europe.

Company

hirify.global delivers cloud telephony, smart networking, and high-speed internet services, including voice infrastructure deployed across 15+ regulated countries.

What you will do

• Design, deploy, maintain, and improve enterprise VoIP core platforms and in-house PBXs.
• Ensure quality of service, call continuity, reliability, encryption, and fraud detection across voice networks.
• Configure and troubleshoot unified communications, cloud voice, and on-premises systems while analyzing SIP call flows and logs.
• Improve voice security architecture with system administration and cybersecurity teams.
• Automate provisioning and monitoring, coordinate vendors and third parties, and provide Level 2 support, training, and client-facing technical assistance.
• Maintain compliance with telecom regulations, GDPR, NIS2, DORA, and ISO 27001.

Requirements

• Basic familiarity with VoIP, cloud telephony, or PBX systems is helpful; curiosity and willingness to learn are essential.
• Understanding of networks and internet connections, including UDP/IP basics.
• Interest in or knowledge of SIP, telecommunications standards, privacy, and security.
• Willingness to develop scripting and automation skills; experience with PHP or Python is helpful.
• Comfort working with Linux systems, including at an early-career level.
• Strong problem-solving mindset and motivation to investigate issues and find solutions.
• Participation in an on-call rotation for urgent SLA-client issues and monitoring alarms outside regular working hours.

Nice to have

• School project, internship, or part-time experience in telecom or IT; a few months is sufficient.
• Interest in unified communications, telephony, or digital networks.
• Telecom or networking certification, including entry-level or in-progress certification.
• Knowledge of FreeSWITCH, Asterisk, or SIP.
• Projects, hobbies, or online courses related to voice technology or networking.

Culture & Benefits

• Supportive team with mentorship from senior engineers during onboarding and ongoing work.
• Training and daily development focused on SIP, telecom compliance, and real-world systems.
• Flexibility in working hours after settling into the role.
• Opportunity to work on large-scale voice systems deployed across 15+ countries, including architecture, automation, security, and performance.
• Experimentation, personal growth, and support for developing deep technical expertise are encouraged.

Hiring process

• Submit a CV in PDF format and record a brief smartphone video explaining interest in the role or asking questions.
• Instead of a conventional motivational letter, use an AI tool of choice to demonstrate adaptability to new tools.