System/DevOps Engineer (m/f/d)

T-Systems International; Granada; Híbrido; EUR 65.000 - 95.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health insurance

Meal vouchers

Childcare

Transport

Telemedicine

Life and accident insurance

Social fund

26+ vacation days

Descripción de la vacante

T-Systems Iberia is seeking a skilled DevOps Engineer to drive the integration and operation of the online charging system within a Kubernetes-based private cloud. You will work across international teams on migrations, monitoring, and production readiness.

Ideal candidates bring strong cloud and container orchestration expertise, knowledge of charging systems, and hands-on experience with high availability, incident analysis and complex system integration.

Formación

• Extensive expertise in Kubernetes and private cloud deployments.
• Strong knowledge of Online Charging Systems and CCS.
• Experience designing APIs and system integrations with partners.
• Skilled in incident analysis, observability and root cause diagnosis.
• Proven ability to plan capacity, high availability and failover.

Responsabilidades

• Develop technical concepts, system specs and interface designs for OCS and connected systems.
• Install, configure, operate and continuously improve production systems.
• Monitor availability, performance and capacity; ensure resilience and failover.
• Perform incident, problem and root-cause analysis using logs and metrics.
• Collaborate with project management, suppliers and international teams.

Conocimientos

Kubernetes & Cloud Infrastructure

Telecom Core & Charging Systems

System Design & Interface Integration

Observability & Incident Analysis

High Availability & Resilience

Release & Vendor Coordination

Descripción del empleo

Company Description

T-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.

Job Description

Project Description
The DevOps team is responsible for the technical integration, production operation, lifecycle management and continuous development of the Online Charging System supporting prepaid voice and messaging services. Its scope includes system and interface design, monitoring, incident and problem analysis, release management, supplier coordination, upgrades, migrations and production rollouts. A key focus is the introduction of a new Converged Charging System from an external supplier on a Kubernetes-based private cloud. The team will be responsible for its technical integration, migration, operational readiness and future production operation. The team collaborates closely with project management, validation management, suppliers and the owners of connected partner systems in an international environment.
Activity Description
Develop technical concepts, system specifications and interface designs for the Online Charging System and connected systems. Install, configure, operate and continuously improve complex production systems and services. Monitor availability, performance and capacity and ensure resilience, redundancy and failover capability. Perform hands-on incident, problem and root cause analysis using logs, metrics and monitoring data. Analyze and implement requirements related to charging, rating, billing and comparable business logic.

Qualifications

Skills Requirements

• Kubernetes & Cloud Infrastructure: Expertise in container orchestration (Kubernetes) on private cloud environments, including cluster deployment, configuration, and lifecycle management.
• Telecom Core & Charging Systems: Deep understanding of Online Charging Systems (OCS), Converged Charging Systems (CCS), rating/billing logic, and domain-specific protocols.
• System Design & Interface Integration: Ability to author technical specs, design APIs/interfaces, and handle complex software integration with connected partner systems.
• Observability & Incident Analysis: Advanced log/metric analysis and hands-on root cause diagnosis to troubleshoot complex production incidents and high-throughput telecom traffic.
• High Availability & Resilience: Mastery in engineering redundant systems, failover mechanisms, capacity planning, and proactive monitoring to guarantee high uptime.
• Release & Vendor Coordination: Experience managing software upgrades, migrations, and rollouts while collaborating with external suppliers and cross-functional international teams.

Additional Information

What do we offer you?

Work environment & flexibility

• International, dynamic and collaborative environment.
• T-Social: social initiatives (sports, community, health, ...).
• Hybrid work model (remote/on-site).
• Flexible working hours.

Growth & development

• Customized training: access to Coursera to learn whatever you want, whenever you want.
• Weekly language classes (English & German).
• International Mentoring Sessions & Experience Days.

Compensation & benefits

• Flexible compensation plan (health insurance, meal vouchers, childcare, transport).
• Telemedicine.
• Life and accident insurance.
• Social fund.

Wellbeing & time off

• 26+ working days of vacation per year.
• Free access to specialist services (medical, legal, wellness).
• 100% salary coverage during medical leave.

And many more advantages of being part of T-Systems!
T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.