IP/IMS Engineer

Tangent International; Riyadh; On-site; SAR 180,000 - 240,000; Full time

Job summary

Tangent International is seeking an experienced IP/IMS Engineer to join a major telecommunications project in Saudi Arabia on a 12-month contract. The role provides Technical Authority across the IMS domain, supporting design, delivery and operations while ensuring scalable, secure and highly available IMS solutions.

You will work with vendors, Network Delivery and SNOC teams, review IMS designs, perform risk analysis, and drive change governance to meet SLA requirements.

Qualifications

• Extensive IMS domain expertise required.
• Hands-on with CSCFs, SBCs, TAS, HSS/UDM and ENUM.
• Strong SIP, Diameter, RTP and HTTP/REST knowledge.
• VoLTE and VoWiFi experience.
• IMS-based services at scale.
• Design reviews and governance experience.
• Change impact and risk analysis.
• Root-cause analysis and complex troubleshooting.
• High availability and redundancy concepts.
• IMS capacity planning and vendor/stakeholder management.

Responsibilities

• Provide Technical Authority across the IMS domain.
• Own solution governance across IMS architectures, configurations and network changes.
• Review and guide IMS designs, upgrades and integrations.
• Support Core IMS, SBC, TAS, HSS/UDM and PCRF/PCF environments.
• Assess technical risks and service impacts associated with network changes.
• Act as a senior escalation point for complex IMS issues and performance degradation.
• Conduct design reviews and change impact assessments.
• Perform failure root-cause analysis.
• Ensure IMS solutions meet availability, scalability, security and SLA requirements.
• Work closely with vendors, Network Delivery, Operations and SNOC teams.
• Translate business and service requirements into robust technical solutions.

Skills

IMS domain expertise

CSCFs/SBCs/TAS/HSS-UDM/ENUM

SIP

Diameter

RTP

HTTP/REST

VoLTE/VoWiFi

Design governance

Change impact analysis

Root-cause analysis

High availability concepts

Capacity planning

Vendor/stakeholder mgmt

Job description

We are seeking an experienced IP/IMS Engineer to join a major telecommunications project in Saudi Arabia on a 12-month contract.

The successful candidate will provide Technical Authority across the IMS domain, supporting design, delivery and operational activities while ensuring IMS solutions remain scalable, secure, highly available and aligned with technical standards and best practices.

Responsibilities

• Provide Technical Authority across the IMS domain.
• Own solution governance across IMS architectures, configurations and network changes.
• Review and guide IMS designs, upgrades and integrations.
• Support Core IMS, SBC, TAS, HSS/UDM and PCRF/PCF environments.
• Assess technical risks and service impacts associated with network changes.
• Act as a senior escalation point for complex IMS issues and performance degradation.
• Conduct design reviews and change impact assessments.
• Perform failure root-cause analysis.
• Ensure IMS solutions meet availability, scalability, security and SLA requirements.
• Work closely with vendors, Network Delivery, Operations and SNOC teams.
• Translate business and service requirements into robust technical solutions.

Required Skills

• Core IMS expertise.
• Hands-on experience with CSCFs, SBCs, TAS, HSS/UDM and ENUM.
• Strong knowledge of SIP, Diameter, RTP and HTTP/REST.
• VoLTE and VoWiFi experience.
• IMS-based services at scale.
• Design review and technical governance experience.
• Change impact and technical risk analysis.
• Root-cause analysis and complex troubleshooting.
• High availability and redundancy concepts.
• IMS capacity planning.
• Strong vendor and stakeholder management.

Nice to Have

• Experience working within large-scale telecom operator environments.
• Experience collaborating directly with SNOC and Network Delivery teams.

Why Apply

This is an opportunity to take a senior technical role across a complex IMS environment, combining hands-on technical expertise with architecture, solution governance and Technical Authority responsibilities.