About This Opportunity
We are looking for a highly motivated and passionate engineer to join our product line maintenance and customer support engineering organization, working on the 5G Cloud Core Data Manager (CCDM) product.
You will be part of a talented, self-organized team within Ericsson Spain R&D in Madrid, working in an international environment with leading-edge technologies.
We offer an empowering and flexible work environment where you can grow technically while making a direct impact on products deployed by major telecom operators worldwide.
What You Will Do- Sustain, evolve, and support the CCDM product throughout its entire post-release lifecycle - from deployment through upgrades, maintenance, and end-of-life- Investigate and resolve complex issues reported from customer environments, performing root cause analysis and delivering timely corrections- Develop, test, and release patches and fixes with minimal disruption to live networks- Participate in the 24×7 3rd-line support on-call rotation- Drive continuous improvement of product reliability, performance, and maintainability- Work with technologies such as Kubernetes, AI/LLMs, cloud-native platforms, and CI/CD pipelines- Collaborate cross-functionally with development, operations, and support teams to bridge the gap between field issues and engineering solutions
What You Will Bring- Hands-on experience as a user, developer, or tester of distributed database technologies- Experience in programming for open-platform, real-time, and high-availability systems, including scripting- Expertise in Java and C++, with solid knowledge of design patterns and software architecture- Familiarity with LLMs and their practical applicability (LangGraph, LangChain, MCPs, low-code AI tooling)- Knowledge of cloud-native technologies (Kubernetes, Docker) and database fundamentals- Strong competence in AI-assisted development tools (e.g., GitHub Copilot, Claude, code assistants)- Excellent communication skills and a collaborative, open mindset- Fluent in English- Bachelor's degree in Telecommunications, Computer Science, or related field
Desirable- Deep understanding of distributed database concepts and telecommunications protocols- Understanding of mobile network architecture (4G/5G) - interfaces, protocols, and network functions- Knowledge of high-availability concepts and techniques (replication, leader election, active/standby)- Experience with 5G core network- Understanding of TCP/IP networking and modern transport protocols (e.g., QUIC), as well as IP-based applications (HTTP, HTTPS)
What We Offer- The opportunity to work on a world-class distributed database platform that underpins critical infrastructure for leading telecommunications operators globally- Support us in the adoption of Artificial Intelligence and Large Language Models within our engineering practices - from intelligent automation to AI-assisted development and testing- Exposure to technically challenging problems at scale: real-time processing, high availability, and millions of concurrent transactions- A structured environment for professional growth in strategic technology domains including cloud-native systems, 5G core networks, and AI-driven software engineering- Collaboration within a multidisciplinary, international engineering team committed to technical excellence- Access to continuous learning programs and direct involvement in R&D initiatives at the forefront of the industry- A stable career path within a global technology leader with long-term investment in innovation- A flexible working model that supports a healthy work-life balance
Join our Team
Skills Required
- Deep understanding of Distributed Databases concepts and Telecommunications protocols
- Hands-on experience with distributed database technology
- Knowledge of High availability concepts/techniques
- 5G knowledge
- Knowledge in TCP/IP Networking and evolution transport protocols
- Experience in programming real-time, high-availability systems
- Expertise in Java and C++
- Experience with AI tools
- Good communication skills
- Bachelor's degree in Telco or Computer Science
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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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.
