About This Opportunity
We are hiring across multiple levels within our Fixed Line Core and IMS VOBB operations team - from skilled L2 Engineers to experienced Senior Engineers and strategic Team Leads. You will be part of a high-performing, multi-vendor network environment supporting critical voice, signaling, and IMS infrastructure across platforms from Ericsson, Nokia, Oracle, Ribbon, Tekelec, and Genband. Whether you are building your core network career or leading a team through technology transformation, this is a compelling opportunity to grow and make real impact in a technically rich, fast-evolving environment.
You Will Bring
Engineer (Level 2)• 2-4 years of experience in fixed line core or VOBB network operations• Basic understanding of SS7, SIGTRAN, SIP, and Diameter protocols• Foundational knowledge of IMS architecture and VoIP concepts• Familiarity with telecom nodes - DSR, STP, SBC, HLR/SDM• Working knowledge of Linux/Unix environments• Understanding of VOBB and fixed line call flows• Strong troubleshooting mindset and analytical skills
Senior Engineer (Level 3)• 4-8 years of experience in fixed line core and IMS/VOBB networks• Strong expertise in IMS Core functions - CSCF and TAS• Deep knowledge of SS7, SIGTRAN, Diameter routing, SIP, and RTP• Hands-on experience with Wireshark and protocol-level trace analysis• Understanding of high availability and network redundancy design• Scripting skills in Python or Shell (advantageous)• Detailed end-to-end understanding of VOBB and fixed line call flows
What Will You Do
Engineer (Level 2)• Monitor and maintain network nodes including Ribbon SBC & Analytics, Oracle STP/SBC (MNP & EIR), Nokia MSS & Media Gateway, Ericsson IMS/SDM/5GC, and Genband DMS/CS2K/C20• Perform alarm monitoring, first-level fault analysis, and incident ticket management• Execute routine health checks and preventive maintenance activities• Support incident resolution under guidance of senior engineers• Perform basic configuration changes and operational script execution• Maintain accurate network documentation and update records
Senior Engineer (Level 3)• Lead advanced troubleshooting across Tekelec DSR, Oracle STP/SBC, Ribbon SBC & Analytics, Nokia MSS & Media Gateway, Genband DMS/CS2K/C20/TAS, and Ericsson IMS/vIMS/VoLTE TAS/SDM/csDRA/5GC• Conduct deep protocol analysis across SIP, Diameter, and SS7 layers• Manage and resolve critical incidents (P1/P2) and lead Root Cause Analysis (RCA)• Optimize network performance and contribute to capacity planning• Implement configuration changes, software upgrades, and network migrations• Support interconnect management, call routing, and subscriber service configurations• Collaborate with vendors for bug fixes, patches, and technical escalations
Key Qualifications• Bachelor's or Master's degree in Telecommunications, Computer Science, Electrical Engineering, or a related field• Relevant experience based on level - 2-4 years (L2), 4-8 years (L3), 8-15+ years (Team Lead)• Knowledge of core telecom protocols - SS7, SIGTRAN, SIP, Diameter, and RTP
Skills Required
- Bachelor's or Master's degree in Telecommunications, Computer Science, Electrical Engineering, or a related field
- 2-4 years of experience in fixed line core or VOBB network operations
- Basic understanding of SS7, SIGTRAN, SIP, and Diameter protocols
- Working knowledge of Linux/Unix environments
- Strong troubleshooting mindset and analytical skills
- 4-8 years of experience in IMS/VOBB networks for Senior Engineer
What the Team is Saying
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Ericsson Compensation & Benefits Highlights
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Retirement Support — The U.S. 401(k) includes an automatic 3% company contribution plus matching (100% of the first 3% and 50% of the next 2%) with immediate vesting. An employee stock purchase plan and legacy pensions in some groups strengthen long‑term savings.
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Leave & Time Off Breadth — Generous PTO, paid holidays, sick time, bereavement leave, and a dedicated volunteer day are offered. Time‑off allotments can increase with tenure and are complemented by hybrid work where roles allow.
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Healthcare Strength — Medical, dental, vision, and mental‑health support are part of a comprehensive health and wellbeing offering. Wellness initiatives such as onsite gyms, fitness classes, and EAP access are available in certain locations.
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.
