- Location
- SG
- Workplace
- Onsite
- Type
- Full-time
- Department
- Engineering
- Seniority
- Senior
- Experience
- 8+ years
- Education
- Master
- Industry
- Telecommunications
- Category
- Engineering
- Role type
- Individual Contributor
- Environment
- Office
- Source
- Eightfold
Overview
The Senior System Integrator specializes in Ericsson's Dual Mode Core, working at the technical forefront of complex deployments in Tier-1 operator environments. The role involves leading integration, deployment, migration, and troubleshooting across live networks at the intersection of traditional core networks and cloud-native infrastructure. Responsibilities include driving installation and validation of DMC solutions, deploying cloud-native workloads, leading upgrades and lifecycle management, troubleshooting complex issues, and optimizing operations through automation. Requires 8-12 years of Telecom Core Network integration experience and strong cloud transformation background.
Description
## Join our Team
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.
Skills
Languages
About Ericsson
Ericsson is a global leader in telecommunications and networking solutions, providing infrastructure and services for mobile and fixed networks worldwide.
