About This Opportunity
This is one of the most technically ambitious transformation programs in Southeast Asia's telecom landscape - and we need the architect to lead it. As E2E Solution Architect, you'll own the end-to-end design and technical execution of migrating a live Ericsson Dual Mode Core network - running 5G SA and 4G EPC simultaneously - from a 2-site NFVi deployment to a resilient, cloud-native 3-site CNIS architecture. Every design decision you make will directly impact network stability, service continuity, and the digital experience of millions of Singtel subscribers. This is a role for a technical authority who can lead from the front - with customers, with engineers, and in the boardroom.
What You'll Do
Own the Architecture - End to End
Define and govern the target-state architecture across 4G EPC, 5G SA Core, Signalling, Charging, Subscriber Data Management, and Cloud Infrastructure. You'll develop HLDs, LLDs, migration strategies, and rollback plans - and you'll be accountable for every one of them.
Lead the Transformation
Drive the full migration from NFVi (CCD/CEE) to CNIS - planning and executing multi-site traffic migration, ISSU strategies, disaster recovery, and failover scenarios. Minimal customer impact isn't a goal. It's a requirement.
Be the Design Authority for Cloud-Native
Own governance of Kubernetes cluster design, CNF onboarding, networking, storage, security, and observability. Drive N+1/N+2 resiliency and geo-redundancy requirements that keep mission-critical services running without compromise.
Govern Lifecycle & Automate Everything
Define software upgrade and lifecycle strategies, lead EOM modernisation roadmaps, and govern CI/CD and GitOps deployment frameworks. You'll push for Infrastructure-as-Code, automated validation, and MOP automation - because smarter operations are non-negotiable.
Lead Technical Governance
Chair architecture reviews and design authority forums. Conduct risk assessments for major transformations and CABs. Ensure alignment across Core, Cloud, Transport, OSS, and Security - nothing falls through the cracks on your watch.
Be Singtel's Trusted Technical Advisor
Engage directly with the customer's CTO, architecture, and operations teams. Present transformation roadmaps, solution strategies, and architecture evolution at executive steering committees - with clarity, credibility, and confidence.
What You Bring- 5G & 4G Core Expertise- Deep hands-on knowledge of Ericsson 5G SA Core - AMF, SMF, UPF, PCF, NRF, UDM, AUSF, CHF, SCP.- Strong expertise in 4G EPC - MME, SGW, PGW, PCRF, HSS, OCS.- Experience with IMS, Signalling, Charging, and Subscriber Data Management.- Cloud Native & Infrastructure - Expert-level knowledge of Ericsson CNIS, CCD, CEE, Kubernetes, CNFs, and OpenStack-based NFVi.- Strong grounding in storage, networking architecture, and service mesh concepts.- Automation & DevOps - CI/CD pipeline design, GitOps, Ansible, Helm, Terraform, ArgoCD, Jenkins - you build automation, not just processes.- Networking & Observability - IP Networking, Diameter, HTTP2/SBI, DNS, Load Balancing, and Network Security.- Monitoring, alerting, log analytics, capacity planning, and performance management.
Experience- 12-15+ years in Telecom Core and Cloud domains; 5+ years in 5G Core architecture.- Proven track record in large-scale operator transformation programs in Tier-1 environments.- Strong executive presentation and customer-facing skills.
Why join Ericsson?At Ericsson, you'll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what's possible. To build solutions never seen before to some of the world's toughest problems. You'll be challenged, but you won't be alone. You'll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply? Click Here to find all you need to know about what our typical hiring process looks like.Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: Singapore (SG) || Singapore
Req ID: 786036
Skills Required
- 12-15+ years in Telecom Core and Cloud domains; 5+ years in 5G Core architecture
- Deep hands-on knowledge of Ericsson 5G SA Core (AMF, SMF, UPF, PCF, NRF, UDM, AUSF, CHF, SCP)
- Strong expertise in 4G EPC (MME, SGW, PGW, PCRF, HSS, OCS)
- Experience with IMS, signalling, charging, and subscriber data management
- Expert-level knowledge of Ericsson CNIS, CCD, CEE, Kubernetes, CNFs, and OpenStack-based NFVi
- CI/CD and GitOps pipeline design and automation experience (Ansible, Helm, Terraform, ArgoCD, Jenkins)
- Strong grounding in IP networking, Diameter, HTTP2/SBI, DNS, load balancing, and network security
- Experience with monitoring, alerting, log analytics, capacity planning, and performance management
- Proven track record in large-scale operator transformation programs in Tier-1 environments
- Strong executive presentation and customer-facing skills
What the Team is Saying
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Ericsson Compensation & Benefits Highlights
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Healthcare Strength — Comprehensive medical, dental, vision, and mental‑health options are positioned as core benefits with multiple plan choices in key markets. Official materials explicitly emphasize healthcare breadth as part of “Life at Ericsson.”
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Retirement Support — 401(k) with employer matching in the U.S., pensions in some regions, and broad access to an ESPP indicate strong long‑term financial support. Company filings and AGM materials describe share programs and post‑employment benefits as ongoing pillars of the package.
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Leave & Time Off Breadth — Paid time off, sick leave, holidays, and paid volunteer time are highlighted alongside generous parental leave in various locations. Time‑off entitlements are presented as a strong component of the total rewards offering.
Ericsson Insights
What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day. We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale. Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient. Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical. Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term. As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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