About this opportunity:
Join our dynamic team at Ericsson as a Solution Architect. In this pivotal role of Design IMS solutions that scale, interoperate, and perform. You will turn customer needs into robust architectures, lead end-to-end design across multi-vendor environments, and guide delivery teams from blueprint to acceptance. The goal is simple, resilient IMS, ready for VoLTE, VoWiFi, and cloud-native evolution.
What you will do:
• Own the IMS solution architecture, align HLD and LLD with customer requirements, standards, and Ericsson best practices.• Define reference architectures for CSCF, SBC, TAS, DNS/ENUM, and related domains, including integration with EPC/5GC.• Lead discovery and translate business and technical needs into clear design decisions, risks, and trade-offs.• Produce and review design deliverables, HLD/LLD, capacity and scaling models, security controls, data flows, and call flows.• Set integration strategy and guardrails, support MOP definition for live activities, and ensure design compliance during rollout.• Define test strategies for SIT, IOT, and UAT, align acceptance criteria with KPIs and SLAs, and sign off on readiness.• Guide troubleshooting on complex issues, drive root cause analysis, and steer corrective actions with L2/L3 teams.• Optimize architecture for performance, resilience, and cost. Lead parameter tuning guidance and capacity planning.• Shape the cloud journey with NFV and cloud-native patterns on Kubernetes, and promote automation across on-prem and hybrid clouds.• Partner across domains, Cloud, PACO, Transport, Security, and customer stakeholders. Run technical workshops and design reviews.• Maintain architecture standards, reusable patterns, and knowledge assets for repeatable delivery.
The skills you bring:
• Deep understanding of IMS architecture and 3GPP standards, with practical design authority in multi-vendor environments.• Strong grasp of SIP, SDP, DIAMETER, and call flows for VoLTE and VoWiFi, with interworking to EPC/5GC.• Hands-on credibility with IMS nodes, CSCF, TAS, SBC, DNS/ENUM, plus policy and charging touchpoints.• Proficiency in Linux fundamentals, networking, routing, DNS, TLS, and security principles for IMS.• Experience defining test strategies and acceptance for carrier-grade services and KPIs.• Comfort with logs and traces, and tools like Wireshark, to validate design and isolate defects.• Cloud and virtualization know-how, NFV, containers, Kubernetes, CI/CD, and exposure to cloud-native IMS.• Scripting for automation advantage, Python or Shell, to support design validation and tooling.• Clear communicator who can lead technical discussions, simplify complexity, and influence decisions.
The skills you bring:
• BE/B.Tech/MCA or equivalent.• 9 to 15 years in telecom core or IMS, with at least 5+ years in solution or architecture roles.• Proven track record delivering IMS, VoLTE or VoWiFi, from design to acceptance in live networks.• Certifications are a plus, IMS or VoLTE, Linux, cloud, Kubernetes, OpenStack.
Skills Required
- BE, B.Tech, MCA, or equivalent degree
- 9 to 15 years of experience in telecom core or IMS
- At least 5 years of experience in solution or architecture roles
- Proven delivery of IMS, VoLTE, or VoWiFi from design through acceptance in live networks
- Deep understanding of IMS architecture and 3GPP standards
- Experience with SIP, SDP, DIAMETER, VoLTE, VoWiFi, EPC, and 5GC interworking
- Experience with IMS nodes including CSCF, TAS, SBC, and DNS/ENUM
- Knowledge of Linux, networking, routing, DNS, TLS, and IMS security principles
- Experience defining test strategies and acceptance criteria for carrier-grade services
- Experience with logs, traces, and Wireshark
- Cloud, virtualization, NFV, containers, Kubernetes, and CI/CD knowledge
- Python or Shell scripting experience
- IMS or VoLTE, Linux, cloud, Kubernetes, or OpenStack certifications
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.
