Integration Expert for Enterprise Core Services (m/f/d)

T--Mobil; Madrid; Hybrid; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Hybrid work model

Health insurance

Meal vouchers

Telemedicine

Wellbeing & time off

Job summary

Deutsche Telekom AG's T-Systems Iberia seeks an Integration Expert for Enterprise Core Services to join the Madrid lab and contribute to 4G/5G core networks in a cloud-native environment. You will implement, test, and automate CI/CD pipelines while ensuring high availability and rapid recovery in complex CNF deployments.

The role requires deep hands-on experience in mobile core network components, protocol analysis, and cloud-native testing, with independence and teamwork in Agile settings.

Qualifications

• Experience with mobile core networks (4G/5G) and cloud-native environments.
• Experience in integrating and testing CNF applications in cloud-native environments.
• Strong automation and test development skills.
• Experience with tracing and protocol analysis in microservice architectures.
• Hands-on experience with CI/CD tools and Kubernetes.

Responsibilities

• Install and integrate developments and configurations to meet customer requirements in mobile core lab environments.
• Use CI/CD pipelines and test automation environments.
• Test and verify all requirements are met; perform root cause analyses when issues occur.
• Program and automate test cases; improve implementations for reliability and efficiency.
• Collaborate with implementation teams to optimize software and system performance.

Skills

CI/CD pipelines

Kubernetes

Test automation

Protocol analysis

REST APIs

Python scripting

GitLab

Jenkins

Tools

GitLab

Shell

Python

Jenkins

Artifactory

Job description

Job ID: 744000158136484Integration Expert for Enterprise Core Services (m/f/d)MadridProfessionalRegularT-Systems IberiaYour TaskThe Packet Core Supersquad/Enterprise Core Squad is responsible for business customer services in mobile core networks. In this position, you will integrate and test all necessary developments and adaptations to realize new customer and business requirements in development labs and in state-of-the-art cloud native 4G and 5G core networks. This position is based at the Telco Hub in Madrid.ResponsibilitiesInstall and integrate all new developments, adaptations and configuration changes to implement new customer requirements in the mobile core network test laboratoryUse CI/CD-pipelines and test automation environmentsTest and verify that all requirements are met correctly and completelyIn case of failure, conduct root cause analyses, secure evidence and initiate correctionsProgram and automate test casesImprove implementations to optimize customer experience, reliability and efficiencyContribute to the design and implementation of automated CI/CD pipelines and test automation for cloud-native applicationsVerify and improve high availability solutions and disaster recovery plans to ensure service stability and rapid recoveryProvide support for complex projects across development, quality assurance, and project planning, as well as assist with the implementation of new mobile core software releasesCollaborate closely with involved implementation teams to streamline processes, enhance software and system performance and apply innovative technologies and conceptsYour ProfileWe are seeking a highly skilled Mobile Core Network Integration and Test Engineer with extensive experience in 4G/5G core networks, cloud-native environments, and test automation. The ideal candidate will have deep technical expertise in mobile core network components, CI/CD pipelines, Kubernetes, and protocol analysis in microservice architectures.Must Have SkillsIn-depth understanding of mobile core network components, including their functions, procedures and processes, interfaces, and protocols in 4G enhanced packet core (4G ePC), 5G non-standalone core (5G NSA), and 5G standalone core (5G SA) networks and their interconnection with customer networksSeveral years of experience in integrating and testing of mobile services and CNF applications (ideally Mavenir products) in cloud-native environmentsSeveral years of experience in applying and programming test automation in cloud-native environmentsGood knowledge of tracing and protocol analysis in microservice architectures with REST APIs and modern security protocols in cloud-native environmentsDeep end-to-end understanding of the functionality and protocols of heterogeneous IPv4/IPv6 networksHands-on experience with CI/CD pipelines using GitLab, shell or Python scripts, Jenkins, Artifactory, and other toolsHands-on experience in managing and configuring Kubernetes clustersExperience in classic and agile project managementAbility to work very independently as well as in teamsNice to Have SkillsWillingness to participate in on-call duties and call-in procedures outside of normal office hours (approximately 5-7 weeks per person per year)About UsT-Systems is part of the Deutsche Telekom Group, with around 30,000 employees worldwide. We create technology with purpose to generate a positive impact on society.We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers' experience. We trust people: we offer autonomy, continuous support, and a collaborative environment where you can grow without limits.We are one global team, guided by respect, integrity, and a passion for doing better every day.BenefitsWork environment & flexibilityInternational, dynamic and collaborative environmentT-Social: social initiatives (sports, community, health, ...)Hybrid work model (remote/on-site)Flexible working hoursGrowth & developmentCustomized training: access to Coursera to learn whatever you want, whenever you wantWeekly language classes (English, Spanish & German)International Mentoring Sessions & Experience DaysCompensation & benefitsFlexible compensation plan (health insurance, meal vouchers, childcare, transport)TelemedicineLife and accident insuranceSocial fundWellbeing & time off26+ working days of vacation per yearFree access to specialist services (medical, legal, wellness)100% salary coverage during medical leaveApplication InformationIf you are looking for a new challenge, do not hesitate to send us your CV! Please send CV in English.T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.Additional DetailsOn-call duties and call-in procedures outside of normal office hours (approximately 5-7 weeks per person per year)Job BenefitsHealth & InsuranceFlexible compensation plan (health insurance)Life and accident insuranceTelemedicine100% salary coverage during medical leaveWork-Life BalanceHybrid work model (remote/on-site)Flexible working hours26+ working days of vacation per yearProfessional DevelopmentCustomized training: access to Coursera to learn whatever you want, whenever you wantWeekly language classes (English, Spanish & German)International Mentoring Sessions & Experience DaysOffice PerksFlexible compensation plan (meal vouchers, childcare, transport)Social fundLifestyle & WellnessT-Social: social initiatives (sports, community, health, ...)Free access to specialist services (medical, legal, wellness)