Deutsche Telekom IT Solutions Slovakia

Role Description We are seeking a DevOps Engineer Professional with Data Scientist knowledge working in a cutting-edge European project aimed at reducing energy consumption in large-scale Edge computing ecosystems. This role requires collaboration with internal and external partners and stakeholders. - Develop and implement AI/ML models that dynamically optimize energy usage across edge computing infrastructure, including workload scheduling, resource allocation, and load balancing to enable a sustainability focused orchestration for cloud edge computing and other IT ecosystems. - Leverage predictive algorithms to anticipate demand and adjust power consumption in real-time, reducing unnecessary energy use without sacrificing performance. - Conduct research into state-of-the-art AI/ML approaches for energy efficiency, focusing on areas such as green AI, energy-aware algorithms, and AI models that require less computational power. - Work closely with sustainability experts, product managers, and engineering teams to ensure AI/ML solutions are fully integrated into the broader energy-saving goals of the project. - Evaluate tools and products in the market that can support the use of AI and data collection in a sustainability focused orchestration solution. - Implement AI/ML techniques that reduce the need for large-scale data transmission, such as edge-based data processing and federated learning, to minimize energy consumption associated with data transfers. Qualifications - Have proficiency in AI/ML development tools and languages (e.g., Python, TensorFlow, PyTorch, Keras). - Possess strong analytical skills with the ability to derive insights from large data sets and apply them to improve energy efficiency. - Demonstrate excellent collaboration and communication skills, with the ability to work effectively with cross-functional teams and external stakeholders. - Have a passion for sustainability and a desire to apply AI/ML techniques to reduce environmental impact. - Speak English at least at B2 level and/or German at B2+ level. Benefits - Financial benefits - Benefits with focus on learning and development - Benefits with focus on health and sport - Benefits with focus on family and work-life balance - Other benefits Salary Final salary is negotiable. We are offering a base salary depending on seniority level and previous experience of the candidate. In addition to base salary, we provide a variable part and other financial benefits. Base salary will not be lower than 3,800 € /brutto. Additional Information Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation. Location: Kosice Company: Deutsche Telekom System Solutions Slovakia Language: English Job category: Technical positions

Role Description We run T-Cloud Public! T-Cloud Public is a public cloud standard product based on open source community software and driven by principles of DevSecOps. Lean structures, agile methods, highly motivated teams and an extremely dynamic business environment determine our actions. With this customer-oriented and agile orientation, we are the anchor point for the Public Cloud business in Deutsche Telekom Group. As a QA Tester you understand the latest developments in cloud and container technology. Customer-oriented, you will further develop the stability, reliability, and quality of our T-Cloud Public platform. WHAT WILL YOU DO? - Develop, execute and monitor automated tests. - Detect errors in interfaces and functionality. - Consistently automate using common automation frameworks. - Review and correct product documentation. - Solve complex problems in the day-to-day operation of a hyper-scaler's cloud backend. - Work in a team of specialists where everyone helps each other in an open and trusting manner. Qualifications - Completed studies in a technical, engineering or scientific subject or comparable professional training. - 3-5 years of professional experience in IT with a focus on modern cloud technologies. - Experience with test methods, test automation frameworks (Robot Framework, Pytest) and test libraries (Selenium). - Practical knowledge of Linux and Terraform. - Python programming knowledge. - Customer focus. - Knowledge of agile development processes. - Ability to assess technical solutions and find creative approaches to solutions. - OpenStack, AI usage in testing or programming experience in open source projects is a plus. - Fluency in written and spoken English. - You will be working in the European Union to meet our customers' data security and privacy requirements. Benefits We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas: - Financial benefits - Benefits with focus on learning and development - Benefits with focus on health and sport - Benefits with focus on family and work – life balance - Other benefits For more information about our benefits click to Salary Final salary is negotiable. We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 2000€ /brutto. Location Kosice

Role Description We run T-Cloud Public! T-Cloud Public is a public cloud standard product based on open source community software and driven by principles of DevSecOps. Lean structures, agile methods, highly motivated teams and an extremely dynamic business environment determine our actions. With this customer-oriented and agile orientation, we are the anchor point for the Public Cloud business in Deutsche Telekom Group. As an Application Administrator, you understand the latest developments in Linux and cloud technology. You will operate and enhance our T-Cloud Public platform in a customer-oriented manner. WHAT WILL YOU DO? - Solve complex problems in the daily operation of a hyper-scaler's cloud backend. - Install and configure software and hardware. - Manage network devices. - Monitor performance and maintain systems according to requirements. - Troubleshoot issues. - Ensure security through access controls, backups and firewalls. - Consistently automate with common automation frameworks. - Work in a team of specialists where everyone helps each other in an open and trusting manner. Qualifications - Completed studies in a technical, engineering, or scientific field, or equivalent professional training. - 5–7 years of professional IT experience with a focus on modern cloud technologies. - Strong hands-on experience with Linux, Bash, and network-related services. - Excellent knowledge of physical and virtual networks, routing, and firewalls. - Extensive experience in infrastructure automation. - High customer orientation and problem-solving mindset. - Knowledge of agile development processes is considered a plus. - Fluency in written and spoken English. Requirements - IT Technical Skills - Operation - Security & Privacy - Soft skills - Social competence and stress tolerance - Communication and Customer Orientation - Self-competence and Self-organisation Benefits - Financial benefits - Benefits with focus on learning and development - Benefits with focus on health and sport - Benefits with focus on family and work-life balance - Other benefits Salary Final salary is negotiable. We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 1300 € /brutto. Additional Information Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation. Location: Kosice Company: Deutsche Telekom System Solutions Slovakia Language: English Job category: Technical positions

• Act as a trusted advisor and mediator between delivery teams and customers to address AI sovereignty, data sovereignty, and compliance requirements during AI solution design and rollout • Assess customer environments (cloud/hybrid/on-prem) and define sovereignty requirements for AI workloads (data residency, access controls, encryption, key management, segregation, logging, auditability) • Design and implement AI governance frameworks (model lifecycle governance, risk classification, documentation, approval workflows, accountability, audit readiness) • Support customers in building compliant AI architectures (secure-by-design, privacy-by-design), including data pipelines, model hosting concepts, and AI operational models (MLOps/LLMOps) • Translate regulatory needs into implementable controls aligned with frameworks such as EU AI Act, Define and advise on the implementation of control sets for AI systems: monitoring, incident response for AI, model change management, drift detection, explainability/traceability, data lineage, retention policies • Develop and present customer-specific concepts, roadmaps, and target operating models (people/process/technology) for sovereign AI adoption

Role Description - Professional services in the field of cloud security - Consulting and training of the employees of an end customer (best practices) - Migration services for end customers - Implementations of cloud security solutions (PRISMA CLOUD, CORTEX CLOUD) - Preparation of documentation of implementation or migration services - Definition and fulfilment of quality requirements in projects Qualifications - Bachelor's degree or completed vocational training with adequate professional experience - At least three years of professional experience, including at least one year in IT security projects - Good, broad-based IT knowledge, especially in the area of cloud security, compliance & vulnerability management - Professional certifications in the field of PRISMA CLOUD or Palo Alto Networks desirable - At least one method certification (e.g. PMI, Prince2, ITIL Foundation) - Very good presentation and moderation skills - Willingness to travel and international project assignments - Very good written and spoken German and English skills Benefits - Financial benefits - Benefits with focus on learning and development - Benefits with focus on health and sport - Benefits with focus on family and work-life balance - Other benefits Company Description Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services. Join the team at Operational Services GmbH, within Deutsche Telekom Systems Solutions Slovakia, providing opportunities for IT infrastructure experts in Slovakia. OS is one of the leading ICT service providers in the German market and acts as a key driver of digitalization for medium-sized companies. With nearly 1,000 highly qualified specialists, OS designs, operates, and supports modern IT systems, ensures long-term service continuity, and maintains the availability of critical business processes.

• Development of use cases and detection rules. • Assisting in the conception and design of detection strategies. • Collaboration with the SOC for use case validation and acceptance. • Refinement and optimization of existing detection rules. • Creating dashboards and reports for customers or the internal SOC. • Contributing to internal knowledge sharing and process development.

Role Description As Product Owner you understand and represent the customer requirements for the further development of our OpenStack-based cloud platform. Customer-oriented, you prioritize the requirements for implementation in close interaction with operations (DevSecOps). - Maintain product backlogs and represent the customer view. - Prioritize to maximize customer value. - Be the spokesman of your squad, eg. in PI Planning and to customers. - Contribute to continuous improvement of agile processes. - Work in a team of specialists where everyone helps each other in an open and trusting manner. Qualifications - Fluency in written and spoken English. - Completed studies in a technical, engineering or business subject or comparable professional training. - 7 years of professional experience in IT with a focus on modern cloud technologies. - High level of customer orientation. - Hands-on experience with agile methodologies and software tools. - Certification as an Agile Product Owner or comparable, long-term experience. - Analytical work, engaging demeanor and strong sense of personal responsibility. - Ability to assess technical solutions. Benefits - Financial benefits. - Benefits with focus on learning and development. - Benefits with focus on health and sport. - Benefits with focus on family and work-life balance. - Other benefits. Compensation Final salary is negotiable. We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 2000€ /brutto. Additional Information Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation. Location: Kosice Company: Deutsche Telekom System Solutions Slovakia Language: English Job category: Non-technical positions Compensation: up to EUR 2000 - monthly

Role Description The Azure DevOps Engineer Professional defines and evolves enterprise-grade DevOps capabilities on Azure. This role combines hands-on engineering with technical leadership across CI/CD, source control strategy, infrastructure as code, deployment automation, release governance, security controls, and operational observability. The role is expected to create reusable patterns, guide multiple delivery teams, and improve the speed, quality, and reliability of software delivery. WHAT WILL YOU DO? - Design, standardize, and continuously improve CI/CD pipelines for application and platform workloads in Azure - Define source control, branching, release, and environment management strategies across teams and products - Build and maintain infrastructure-as-code and automation patterns for Azure environments and shared services - Embed security, compliance, quality gates, and automated testing into delivery pipelines and deployment workflows - Establish monitoring, deployment telemetry, and feedback loops to improve delivery performance and platform reliability - Mentor engineers, review designs, and act as a senior technical authority for DevOps practices and platform decisions Qualifications - Master´s degree in Information technologies - Speak English – Upper intermediate (C1) / German language is a benefit - Experience with Agile Methodology, Scrum and SAFe - Good communication skills, analytical thinking, team cooperation and presentation skills - Migration from on-premise solutions to Cloud with cost optimizations - 3+ years - Expertise in designing and architect multi-layered Cloud only / Hybrid networks for Microsoft Azure Cloud - 5+ years - Experience in the design and delivery of systems based on IaaS, PaaS and SaaS - 5+ years - Experience in building CI/CD pipelines and serverless architectures - 3-5 years - Good knowledge of Coding/scripting (Bash, Python, PowerShell, or similar) - 3-5 years - Experienced in Databases (Oracle - migration), Networking (ExpressRoute/VPN), Integration (with SAP systems) - 3-5 years - Experienced in Active Directory, Azure Identity Management and Azure AD Premium - nice to have - Experience in designing and implementing connectivity for third-party applications, cloud integrations, and IP networking - Proven ability to act as a customer PoC, providing technical guidance and ensuring a smooth transition - Hands-on troubleshooting of platform, connectivity, and deployment issues to meet customer goals - Support application owners in increasing resiliency through effective use of Kubernetes and OpenStack Requirements - Experience with DevSecOps - Expert - ELK/Prometheus - Expert - Linux Operating System - Expert - Windows Operating System - Expert - Azure - Expert - Ansible / Terraform / Puppet - Expert - Maven / Gradle - Expert - Jenkins / Gitlab - Advanced - Docker / Kubernetes - Expert Benefits - Financial benefits - Benefits with focus on learning and development - Benefits with focus on health and sport - Benefits with focus on family and work – life balance - Other benefits Salary Final salary is negotiable. We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 3800 € /brutto. Additional Information Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation. Location: Kosice Company: Deutsche Telekom System Solutions Slovakia Language: English Job category: Technical positions

• Ensure automation of deployments, configuration management, containerization, release management, monitoring, lifecycle support (pipelines), information and documentation services. • Opportunity to research and grow state-of-the-art automation solutions. • Designs, develops, tests and implements infrastructure for CI/CD pipelines and IaC. • Manages source code, configuration management, release management, build and deployment activities. • Setups and manages integration with partner applications. • Conducts of performance analyses and tunings as well as error analyses and troubleshooting. • Consults and implements new innovative technologies to satisfy innovation strategy. • Creates concepts for further automation of services, processes and/or operating models. • Directly support the project teams in the development, quality assurance accompanying development as well as planning and implementation of product releases. • Continuously optimizes the development and system infrastructure. • Provides consulting to project teams on areas of expertise also Prototypes/Proof of Concept solutions. • Researches and develops in assigned technology, determines business requirements, proposes changes and prepares implementation plans.

• Build and automate network platform for automation and operation related network components • Coordinate and support network lifecycle activities • Provision and maintain InfiniBand switches according to ITIL Standards • Develop and maintain automation scripts • Maintain network-based environments, apply patches, and manage firmware upgrades • Follow and improve incident, problem, and change management workflows • Work closely with Platform Engineers and AI solution teams • Consult and implement new innovative technologies • Mentor and train co-workers • Provide project deliverables to fulfil the project scope • Research and development in assigned technology