Referso Jobs

Ingeniero(a) Senior Packet Core (L3)

NTT Ltd. · Posted Nov 11, 2026

Open

Santiago, Santiago Metropolitan, Chile
On-site
Full-time · Senior
7+ years

Ingeniero(a) Senior Packet Core (L3)

NTT Ltd. · Posted Nov 11, 2026

Open

Santiago, Santiago Metropolitan, Chile
On-site
Full-time · Senior
7+ years

Executive Head: Wholesale Mobile

Vodafone · Posted Nov 10, 2026

Open

Johannesburg, South Africa, South Africa +1 more
10+ years

Apply with RefersoAI Apply on careers page

Lead the strategy, commercial performance and end-to-end execution of the Wholesale Mobile portfolio across National Roaming, MVNO/MVNE, Managed Network Services, Wholesale APN and Reverse Billed Data.

Locations (2)

Johannesburg, South Africa, South Africa
Midrand, South Africa, South Africa

Responsibilities

Own and execute the Wholesale Mobile strategy, annual operating plan and go-to-market priorities
Own portfolio revenue, margin, cost, forecast and P&L performance
Lead the end-to-end product and customer lifecycle
Negotiate, conclude and govern strategic agreements with mobile operators, MVNO/MVNE partners, managed-network customers, APN and RBD wholesalers
Lead people and cross-functional delivery across Technology, Finance, Billing, Legal, Regulatory, Sales and Operations

Requirements

3 or 4 year degree in Engineering, Commerce, Business or related discipline
MBA or equivalent postgraduate qualification

Executive Head: Wholesale Mobile

Vodafone · Posted Nov 10, 2026

Open

Midrand, Gauteng, South Africa
10+ years

Apply with RefersoAI Apply on careers page

Lead strategy, commercial performance and execution of Vodafone’s Wholesale Mobile portfolio across national roaming, MVNO/MVNE, managed network services, APN and reverse billed data.

Responsibilities

Own and execute the Wholesale Mobile strategy, annual operating plan and go-to-market priorities
Own portfolio revenue, margin, cost, forecast and P&L performance
Lead the end-to-end product and customer lifecycle
Negotiate, conclude and govern strategic agreements with mobile operators and partners
Lead people and cross-functional delivery across Technology, Finance, Billing, Legal, Regulatory, Sales and Operations

Requirements

Bachelor's degree in Engineering, Commerce, Business or related discipline
MBA or equivalent postgraduate qualification
Nice to have: MBA

Skills

National Roaming Managed Network Services MVNO/MVNE GSMA 3GPP LTE

Customer Network Support Engineer

Ericsson · Posted Nov 9, 2026

Open

North Ryde, New South Wales, Australia
On-site
Full-time · Mid

Apply with RefersoAI Apply on careers page

Seeking a dedicated Support Engineer to join a small IMS support team focused on 5G Core and Cloud Core for NACI customers. The role involves owning complex L2/L3 incidents, improving network stability, and working with cross-functional teams to reduce outages and deliver high-performing 5G Cloud Core solutions.

Responsibilities

Lead investigations and drive the resolution of complex L2/L3 incidents across IMS, 5G Core and Cloud Core environments.
Restore customer networks and services during critical incidents, taking ownership of fault isolation, advanced troubleshooting and service recovery.
Analyse system behaviour, identify root causes and work with problem management to prevent repeat faults and improve live network stability.
Collaborate with product, project and delivery teams to support safe introduction of new CCxx releases and operational changes.
Communicate clearly with customers and internal stakeholders during high-pressure incidents, providing timely updates and practical technical guidance.

Skills

IMS architecture VoLTE VoWiFi SIP SDP Diameter

Solution Architect

Ericsson · Posted Nov 6, 2026

Open

Noida, Uttar Pradesh, India
Senior
10+ years

Apply with RefersoAI Apply on careers page

Own the architecture, technical planning, and delivery of IMS LCM scopes for telecom operators. Lead end-to-end lifecycle activities including upgrades, migrations, expansions, and maintenance while providing technical leadership across teams.

Responsibilities

Own technical design and execution for IMS nodes, including CSCF, TAS, SBC, MRF, DNS/ENUM, and HSS
Ensure solutions align with HLD/LLD, customer requirements, CPI, and 3GPP standards
Prepare and review NIRs, MOPs, upgrade, rollback, and contingency plans
Lead live-network LCM activities, upgrades, testing, acceptance, and handover
Validate VoLTE, VoWiFi, SIP/Diameter signaling, call flows, configurations, and KPIs

Requirements

All academic credentials must be from recognized and accredited institutions
Nice to have: Wireshark
Nice to have: multi-vendor telecom environments
Nice to have: IMS/VoLTE or vendor product certifications
Nice to have: AWS/Azure

Skills

IMS LCM upgrades migrations IMS architecture CSCF

Ingeniero(a) Senior Packet Core (L3)

Ingeniero(a) Senior Packet Core (L3)

Responsibilities

Requirements

Skills

Benefits

Executive Head: Wholesale Mobile

Locations (2)

Responsibilities

Requirements

Executive Head: Wholesale Mobile

Responsibilities

Requirements

Skills

Customer Network Support Engineer

Responsibilities

Skills

Solution Architect

Responsibilities

Requirements

Skills

Skills

Benefits

Benefits

VoWiFi jobs

Responsibilities

Requirements

Skills

Benefits

Locations (2)

Responsibilities

Requirements

Responsibilities

Requirements

Skills

Responsibilities

Skills

Responsibilities

Requirements

Skills

Skills

Benefits

Benefits