Solution Engineer - Core Network HSS/HLR

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world's most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.

Your role

As a Solution Engineer specializing in Core Network, you will play a central role in designing, integrating, testing, and troubleshooting advanced core network nodes (including HSS/HLR) across large-scale telecom environments. You'll collaborate closely with customers and internal teams to deliver robust, secure, and scalable solutions aligned with the latest 4G/5G standards.

Your tasks

• Designing and implementing core network elements, ensuring alignment with customer requirements and industry standards
• Managing project deployment, integration, and testing activities across complex, multi-domain telecom environments
• Owning technical documentation responsibilities, including LLD, CIQ, DND, ATP, and MOP, ensuring accuracy and completeness throughout the project lifecycle
• Managing Test & Acceptance activities and providing hands-on troubleshooting support during the deployment phase
• Leveraging cloud technologies (VNF/CNF) and platforms such as CBIS/CBAM, NCS/NCOM, VMware, and OpenStack to deliver robust, cloud-native Core Network solutions

Your profile

• We are looking for a technically driven, detail-oriented professional with deep expertise in Core Network solutions and a passion for delivering excellence in complex Telco environments.
• Proven experience in Telco software solution development and/or system integration, with strong knowledge of Unix/Linux OS and databases including Aerospike, MariaDB, Oracle, and SQL
• Hands-on expertise with Cloud Native Core Nodes, specifically HSS/HLR (mandatory), alongside a solid understanding of core protocols such as Diameter, HTTP2, SIP, SOAP-XML, and SNMP
• Demonstrated experience in application integration projects, particularly in multi-domain or complex environments, with the ability to produce accurate and detailed technical documentation
• Strong problem-solving and analytical skills, with familiarity with automation tools for configuration generation and experience with Cloud Native DB solutions considered a strong advantage

What You'll love about working here

• Practical benefits: yearly financial bonus, private medical care with Medicover with additional packages (e.g., dental, senior care, oncology) available on preferential terms, life insurance and access to NAIS benefit platform.
• Access to over 70 training tracks with certification opportunities (e.g., GenAI, Excel, Business Analysis, Project Management) on our NEXT platform. Dive into a world of knowledge with free access to Education First languages platform, TED Talks and Udemy Business materials and trainings.
• Cutting-Edge Technology: Position yourself at the forefront of IT innovation, working with the latest technologies and platforms. Capgemini partners with top global enterprises, including 145 Fortune 500 companies.
• Enjoy hybrid working model that fits your life - after completing onboarding, connect work from a modern office with ergonomic work from home, thanks to home office package (including laptop, monitor, and chair). Ask your recruiter about the details.

Get to know us

Capgemini is committed to diversity and inclusion, ensuring fairness in all employment practices. We evaluate individuals based on qualifications and performance, not personal characteristics, striving to create a workplace where everyone can succeed and feel valued.

Do you want to get to know us better? Check our Instagram — @capgeminipl or visit our Facebook profile — Capgemini Polska. You can also find us on YouTube. 

About Capgemini

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.