- Company Name
- ORES
- Job Title
- Freelance - Designer Téléphonie
- Job Description
-
**Job Title:** Telephony IP Designer (Freelance)
**Role Summary:**
Lead the design, architecture, implementation, monitoring, and support of IP‑based telephony and call centre platforms (Mitel/Unify, Genesys Cloud). Provide day‑to‑day configuration, quality‑of‑service tuning, security hardening, and incident resolution. Coordinate external vendors, manage KPIs, and contribute to cost optimisation. Contract is full‑time, 12 months, starting 1 January 2026 with a minimum of two onsite days per week at the Gosselies site (driving licence required).
**Expectations:**
* 12‑month freelance commitment, full‑time required.
* Onsite presence at Gosselies at least 2 days/week; travel to site may be needed.
* Ability to work independently and collaboratively with multi‑disciplinary teams.
* Availability for occasional out‑of‑hours interventions.
**Key Responsibilities:**
* Design, document, and maintain IP telephony and call‑centre architectures (Mitel, Unify, Genesys Cloud).
* Conduct integration studies, migrate, and evolve existing infrastructures.
* Implement and support SIP security (TLS/SRTP), segmentation, authentication, and firewalls.
* Configure and optimize call flows, extensions, routing, and QoS.
* Perform monitoring, capacity planning, and tuning (latency, MOS, jitter).
* Manage backups, patches, and software updates in coordination with Release Management.
* Provide N2/N3 support: advanced diagnostics, incident escalation, and root‑cause analysis.
* Train and mentor N1 staff on ticket handling.
* Lead vendor management, run site surveys, and audit technical readiness.
* Generate and analyze KPI reports (availability, performance, quality).
* Support related services such as printing, multimedia, and SIM fleet management as needed.
**Required Skills:**
* Deep knowledge of IP telephony (Mitel, Unify) and call‑centre solutions (Genesys Cloud).
* Proficiency in SIP, RTP, VoIP, routing, switching, SBC, VLAN, and QoS.
* Security experience: TLS/SRTP, SBC, firewalls, authentication, segmentation.
* Monitoring and tuning expertise (Grafana, Nagios, etc.).
* ITIL‑based incident, problem, and change management.
* Familiarity with ticketing systems (ServiceNow, Jira, etc.).
* Strong documentation, analytical, and communication skills.
* Ability to work independently in a freelance environment.
**Required Education & Certifications:**
* Minimum of a bachelor’s degree in Telecommunications, Computer Science, or related field (not mandatory but preferred).
* Relevant certifications (e.g., Cisco CCNA/CCNP Voice, Microsoft Certifications, ITIL Foundation) are advantageous.