About this opportunity:
Own the architecture, technical planning, and delivery of IMS LCM scopes for telecom operators. Lead end-to-end lifecycle activities-from upgrades and patches to expansions, migrations, hardware replacements, maintenance, and decommissioning-while protecting service continuity and providing technical leadership across SDU and SDH teams.
What you will do:
- Own technical design and execution for IMS nodes, including CSCF, TAS, SBC, MRF, DNS/ENUM, and HSS.
- Ensure solutions align with HLD/LLD, customer requirements, CPI, and 3GPP standards.
- Prepare and review NIRs, MOPs, upgrade, rollback, and contingency plans.
- Lead live-network LCM activities, upgrades, testing, acceptance, and handover.
- Validate VoLTE, VoWiFi, SIP/Diameter signaling, call flows, configurations, and KPIs.
- Troubleshoot complex IMS issues, perform RCA/CAPA, and provide L2/L3 support.
- Act as the technical contact for customers and coordinate with Cloud, PACO, Transport, and vendor teams.
- Track plans, risks, milestones, and technical documentation in JIRA/DSF.
- Support effort estimation, capacity planning, mentoring, and knowledge sharing.
The skills you bring:
- 10+ years of telecom experience with hands-on IMS LCM, upgrades, migrations, and live-network activities.
- Strong knowledge of IMS architecture: CSCF, TAS, SBC, MRF, DNS/ENUM, and HSS.
- Expertise in SIP, SDP, Diameter, RTP, VoLTE, VoWiFi, EPC/5GC, and 3GPP standards.
- Experience in IMS troubleshooting, signaling analysis, RCA, KPI monitoring, and tools such as Wireshark.
- Working knowledge of Linux/Unix, Kubernetes, OpenStack, Docker, NFV/SDN, and cloud-native environments.
- Exposure to Python, Shell, or Ansible automation and tools such as JIRA/DSF.
- Strong customer communication, stakeholder management, leadership, and problem-solving skills.
- Experience working in multi-vendor telecom environments.
- IMS/VoLTE or vendor product certifications.
- Kubernetes, OpenStack, AWS/Azure, Linux, Wireshark, or ITIL certification.
- Experience mentoring engineers and leading cross-functional technical teams.
- Safe and successful IMS upgrades and lifecycle activities.
- Service continuity with minimal network impact.
- Timely troubleshooting and resolution of technical issues.
- Accurate technical documentation, configurations, and handover.
"All academic credentials must be from recognized and accredited institutions and are further subject to verification."
Skills Required
- 10+ years of telecom experience
- Hands-on IMS lifecycle management, upgrades, migrations, and live-network activities
- Strong knowledge of IMS architecture, including CSCF, TAS, SBC, MRF, DNS/ENUM, and HSS
- Expertise in SIP, SDP, Diameter, RTP, VoLTE, VoWiFi, EPC/5GC, and 3GPP standards
- Experience with IMS troubleshooting, signaling analysis, root-cause analysis, KPI monitoring, and Wireshark
- Working knowledge of Linux/Unix, Kubernetes, OpenStack, Docker, NFV/SDN, and cloud-native environments
- Exposure to Python, Shell, or Ansible automation and JIRA/DSF
- Strong customer communication, stakeholder management, leadership, and problem-solving skills
- Experience working in multi-vendor telecom environments
- IMS/VoLTE or vendor product certifications
- Kubernetes, OpenStack, AWS/Azure, Linux, Wireshark, or ITIL certification
- Experience mentoring engineers and leading cross-functional technical teams
- Academic credentials from recognized and accredited institutions, subject to verification
What the Team is Saying
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Ericsson Compensation & Benefits Highlights
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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.
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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.
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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.
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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.
