About this opportunity:
As a UDM / Core Data & Provisioning Solution Architect, you will shape end-to-end solutions across Ericsson's subscriber data and provisioning portfolio, including CCDM, CCRC, CCSM, HSS/HLR, EDA, and related 4G and 5G Core network functions. You will translate customer business and technical needs into secure, scalable, and resilient architectures for cloud-native and hybrid environments.
Working with customers, product and project teams, delivery engineers, operations, and partners, you will lead solution definition from requirements and high-level design through deployment assurance and operational handover, ensuring solutions meet performance, availability, interoperability, security, and lifecycle requirements.
What you will do:
- Lead customer and stakeholder workshops to understand business objectives, requirements, constraints, and migration needs.
- Define end-to-end architectures for CCDM, CCRC, CCSM, HSS/HLR, EDA, and their integration with 4G/5G Core network functions and OSS/BSS systems.
- Produce and review architecture deliverables, including high-level designs, interface and deployment views, design decisions, and risks.
- Shape cloud-native deployment approaches covering Kubernetes/CNF topology, resilience, scaling, observability, and lifecycle management.
- Define integration principles and end-to-end flows across interfaces and protocols such as Diameter, HTTP/2, REST, SOAP, XML, LDAP, and 5G SBI/N interfaces.
- Assess capacity, performance, availability, disaster recovery, networking, and security requirements, identifying dependencies and trade-offs.
- Develop migration and upgrade strategies covering coexistence, data transition, rollback, and service continuity.
- Guide technical teams through detailed design, integration, verification, and acceptance, ensuring traceability to customer requirements.
- Lead technical governance, design reviews, risk management, and resolution of cross-domain architecture issues.
- Support bids with solution descriptions, estimates, compliance responses, and scope clarification.
- Ensure designs are implementable and supportable, contributing to documentation, knowledge transfer, and handover.
- Drive standardization and automation in solution delivery.
The skills you bring:
Must-have
- Typically 12+ years in telecommunications Core network architecture, solution design, or technical leadership.
- Strong understanding of 4G/5G Core architecture and subscriber data and provisioning domains.
- Experience with one or more of CCDM, CCRC, CCSM, HSS/HLR, EDA, or comparable subscriber data and charging platforms.
- Ability to translate customer requirements into clear end-to-end architectures and delivery plans.
- Good knowledge of Core network protocols such as Diameter, HTTP/2, REST, SOAP, LDAP, and 5G SBI.
- Understanding of cloud-native functions, containers, and Kubernetes-based telecom deployments.
- Working knowledge of security, resiliency, performance, and capacity principles for carrier-grade solutions.
- Familiarity with Linux and IP networking (routing, firewalls, load balancing, DNS).
- Strong stakeholder management, presentation, and technical writing skills in English.
- Structured problem-solving and management of risks and trade-offs across domains.
Nice-to-have
- Experience with Ericsson 5G Cloud UDM & Policy, EDA, DMC, or other Ericsson Core products.
- Exposure to AMF, SMF, PCF, SC, UDR, AUSF, and policy/charging (PCC) solution architecture.
- Experience in customer-facing architecture, technical presales, bids, or solution consulting.
- Knowledge of CNIS/ECCD or equivalent telecom cloud platforms.
- Experience with Python, Bash, Ansible, CI/CD, or infrastructure as code.
- Background with a major telecom vendor, operator, or systems integrator.
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: 794504
Skills Required
- 12+ years of experience in telecommunications Core network architecture, solution design, or technical leadership
- Strong understanding of 4G/5G Core architecture and subscriber data and provisioning domains
- Experience with CCDM, CCRC, CCSM, HSS/HLR, EDA, or comparable subscriber data and charging platforms
- Ability to translate customer requirements into end-to-end architectures and delivery plans
- Knowledge of Diameter, HTTP/2, REST, SOAP, LDAP, and 5G SBI protocols
- Understanding of cloud-native functions, containers, and Kubernetes-based telecom deployments
- Knowledge of security, resiliency, performance, and capacity principles for carrier-grade solutions
- Familiarity with Linux and IP networking, including routing, firewalls, load balancing, and DNS
- Strong stakeholder management, presentation, and technical writing skills in English
- Structured problem-solving and risk and trade-off management across domains
- Experience with Ericsson 5G Cloud UDM & Policy, EDA, DMC, or other Ericsson Core products
- Exposure to AMF, SMF, PCF, SC, UDR, AUSF, and policy or charging solution architecture
- Experience in customer-facing architecture, technical presales, bids, or solution consulting
- Knowledge of CNIS/ECCD or equivalent telecom cloud platforms
- Experience with Python, Bash, Ansible, CI/CD, or infrastructure as code
- Background with a major telecom vendor, operator, or systems integrator
What the Team is Saying
.png)
.png)
Ericsson Compensation & Benefits Highlights
-
Retirement Support — An automatic employer contribution of 3% plus up to 4% in matching is outlined for U.S. employees, enabling a potential 7% total employer contribution subject to plan rules. Feedback suggests this is a standout element of the package.
-
Leave & Time Off Breadth — The U.S. package specifies at least 15 vacation days for new hires, up to 3 personal days, 11 holidays, and 80 hours of sick time, with flexibility noted in taking time away. Feedback suggests time‑off breadth and usability are strong points.
-
Parental & Family Support — Published materials describe up to 16 weeks of paid maternity leave and 6 weeks of paid parental or adoption leave at 100% of pay, subject to eligibility. Feedback suggests these policies provide meaningful support for families.
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.
Gallery
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
Ericsson Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Ericsson adopts a hybrid work model globally because we know balance matters. Sometimes things are better in real life. Other times we can be more productive at home. Our hybrid approach gives you the best of both worlds.
