Senior Integration Engineer

Ericsson Telecommunications Pte. Ltd.; Singapore; On-site; SGD 180,000 - 240,000; Full time

Job summary

Ericsson Telecommunications Pte. Ltd.

in Singapore is seeking a Senior System Integrator specializing in Dual Mode Core to lead integration, deployment, migration and troubleshooting across live Tier-1 operator environments, bridging traditional core networks with cloud-native platforms. This hands-on leadership role requires driving end-to-end delivery of DMC solutions across 4G/5G, managing migrations from virtualised to cloud-native infrastructure, and delivering high-availability services

Qualifications

• 8–12+ years in Telecom Core Network integration and support.
• Proven track record in Tier-1 operator environments.
• Strong background in cloud transformation, upgrades, migrations, and complex multi-domain troubleshooting.

Responsibilities

• Lead Integration & Deployment: Drive installation, config, commissioning, and end-to-end validation of Ericsson DMC solutions across 4G/5G Core networks.
• Own Cloud-Native Delivery: Deploy and manage DMC workloads on Ericsson cloud platforms; onboarding cloud-native network functions, troubleshooting Kubernetes, storage, and networking layers, and leading migrations from virtualised to cloud-native infra.
• Execute Upgrades & Lifecycle Management: Lead in-service software upgrades, transformation activities, and End-of-Maintenance replacements—validate service continuity at every step.
• Drive Troubleshooting & Incident Recovery: Lead technical investigation, analyse logs/traces/alarms, and work with Product Development Units to find root causes.
• Execute Change with Discipline: Implement approved MOPs, pre-checks, health checks, and post-validation activities; rollback plans ready; sign-off before production.
• Optimise & Automate: Analyse performance, support capacity planning, push for smarter ways of working with scripts, CI/CD and GitOps.

Skills

Ericsson DMC

4G EPC & 5G Core

Cloud-native infra

Kubernetes

Shell scripting

Python

CI/CD

GitOps

Networking (IP, Diameter, SCTP)

Tools

Kubernetes

Ansible

CI/CD tooling

GitOps

Job description

About This Opportunity

The networks powering 4G and 5G connectivity don't build themselves — and neither do the cloud-native platforms transforming how they run. As a Senior System Integrator specialising in Ericsson's Dual Mode Core, you'll be at the technical sharp end of some of the most complex and consequential deployments in the region.
This is a hands-on leadership role. You'll own integration, deployment, migration, and troubleshooting across live Tier-1 operator environments — working at the intersection of traditional core networks and next-generation cloud-native infrastructure. If you thrive under pressure, take pride in technical precision, and want your work to directly shape how millions of people connect — this is your role.

What You'll Do

Lead Integration & Deployment: Drive installation, configuration, commissioning, and end-to-end validation of Ericsson DMC solutions across 4G and 5G Core networks. You'll ensure every deployment meets design standards and goes live with confidence.
Own Cloud-Native Delivery: Deploy and manage DMC workloads on Ericsson's cloud platforms — onboarding cloud-native network functions, troubleshooting Kubernetes, storage, and networking layers, and leading migrations from virtualised to cloud-native infrastructure.
Execute Upgrades & Lifecycle Management: Lead in-service software upgrades, transformation activities, and End-of-Maintenance replacements — validating service continuity every step of the way so the network never misses a beat.
Drive Troubleshooting & Incident Recovery: When complex issues arise, you'll lead the technical investigation — analysing logs, traces, alarms, and performance data, working directly with Product Development Units to find root causes and stabilise critical services fast.
Execute Change with Discipline: Own the implementation of approved Method of Procedures (MOPs), pre-checks, health checks, and post-validation activities. Rollback plans will always be ready. Nothing goes to production without your sign-off on readiness.
Optimise & Automate: Analyse performance trends, support capacity planning, and continuously push for smarter ways of working — building scripts, leveraging CI/CD and GitOps frameworks, and reducing manual effort through automation.

What You Bring

Core Network Expertise

• Deep knowledge of Ericsson Dual Mode Core (DMC) solutions.
• Strong command of 4G EPC and 5G SA Core architectures, end-to-end service flows, and subscriber lifecycle management.
• Solid understanding of signalling, policy control, charging, and subscriber data management.
• Experience with high availability and geo-redundant network designs.

Cloud & Linux

• Hands-on experience with CNIS and cloud-native telecom deployments.
• Linux system administration, shell scripting, Ansible, and Python.
• CI/CD pipeline understanding and GitOps practices.

Protocols & Interfaces

• IP Networking, TCP/IP, Diameter, SCTP, HTTP/2, DNS, REST APIs — you know these cold.

Experience

• 8–12+ years in Telecom Core Network integration and support.
• Proven track record in Tier-1 operator environments.
• Strong background in cloud transformation, upgrades, migrations, and complex multi-domain troubleshooting.