Cosmote Global Solutions

8 Jobs

23 Employees

About the Company

COSMOTE Global Solutions, as a member of OTE Group of Companies, is an ICT Systems Integrator delivering a broad range of ICT Solutions and Services. CGS provides a broad range of ICT Services focusing on: Cloud, Data Centre operations, Networking, Cybersecurity, BI and Data Warehouse, Big Data, Service Desk, Proactive Monitoring, Operations and Support, Service Management, Project and Programme Management, and Professional Services. OTE Group: OTE Group is the largest technology provider in Greece. It is one of the top three listed companies with respect to capitalization, in the Athens Stock Exchange. Deutsche Telekom holds 46.9% of OTE’s share capital and the Greek State holds 5.6%. Find More about OTE Group Our Vision: We digitize societies so that everyone can live and enjoy at the fullest all possibilities offered now while also building on them for a better tomorrow. Our Mission: • We bring the best communication services to our customers • We connect people • We entertain • We help businesses grow. • We are leaders, pioneers, pillar of the economy and society • With passion, faith and commitment • We constantly strive to become better on all fronts • We have a positive impact on society and the environment

Listed Jobs

Company Name: Cosmote Global Solutions
Job Title: Back-end Developer
Job Description: Job Title: Back‑end Developer Role Summary: Senior engineer responsible for building, deploying, and maintaining large‑scale back‑end web applications. Uses Vert.x, Kotlin, Java > 17, and Spring Boot WebFlux to deliver API‑driven microservices with robust security, data integrity, and performance. Leads architecture design, database modeling, and container orchestration while coordinating with front‑end developers and cross‑functional teams. Expectations: • Minimum 10 years in back‑end development with Vert.x, Kotlin, Java > 17, Spring Boot. • Minimum 6 years in microservices architecture, API‑driven development, AS4 integration. • Minimum 6 years in database technologies: MongoDB, PostgreSQL, Virtuoso Triple Store, OpenSearch. • Minimum 6 years in containerization & orchestration: Docker, Kubernetes. • Minimum 5 years in security: OpenID Connect, OAuth 2.0, TLS, Keycloak. • Minimum 6 years in security testing & dependency management: SAST, DAST, Fortify, SonarQube, Sonatype, Dependency‑Track, Maven. • Minimum 10 years using collaboration tools: JIRA, Confluence, Office 365, SharePoint. • English proficiency C2; strong communication; self‑starter; adaptable to change; experience in multicultural teams. Key Responsibilities: 1. Design, develop, and maintain high‑performance back‑end web services and APIs. 2. Integrate front‑end components with server‑side logic, ensuring seamless user experiences. 3. Implement core business logic and data‑access layers, using Hibernate and appropriate ORM tools. 4. Design and optimize database schemas for MongoDB, PostgreSQL, Virtuoso, and OpenSearch. 5. Enforce security and data‑protection standards across all layers. 6. Optimize applications for speed, scalability, and reliability. 7. Lead technical project activities, mentor peers, and steer architecture decisions. 8. Maintain code quality: version control, continuous integration, automated testing, and code reviews. 9. Troubleshoot, debug, and resolve production and development defects. 10. Author detailed technical documentation for system architecture, APIs, and deployment. Required Skills: - Programming: Vert.x, Kotlin, Java > 17, Spring Boot WebFlux, Hibernate. - Architecture: Microservices, API‑driven design, AS4. - Databases: MongoDB, PostgreSQL, Virtuoso, OpenSearch. - Containerization & Orchestration: Docker, Kubernetes. - Security: OpenID Connect, OAuth 2.0, TLS, Keycloak, SAST, DAST, Fortify, SonarQube, Sonatype, Dependency‑Track, Maven. - Collaboration: JIRA, Confluence, Office 365, SharePoint. - Soft skills: Strong communication in English (C2), teamwork, self‑motivation, adaptability. Required Education & Certifications: - Bachelor’s degree in Computer Science, Software Engineering, or a related field. - Industry certifications in Java, Spring, Kubernetes, or security (optional but preferred).

Company Name: Cosmote Global Solutions
Job Title: AI/ NLP/ ML expert
Job Description: **Job Title** AI/NLP/ML Expert **Role Summary** Lead end‑to‑end development and deployment of AI solutions, focusing on Natural Language Processing, Machine Learning, and Generative AI. Architect scalable AI infrastructures, integrate advanced models into production systems, and collaborate with technical and business stakeholders to deliver AI‑powered services. **Expectations** - Minimum of 10 years IT experience, including at least 5 years in AI/ML development. - Proven ability to design and implement AI architectures on cloud platforms (AWS, Azure). - Demonstrated expertise in data engineering, MLOps, and modern DevOps practices. - Strong communication skills for presenting technical blueprints to non‑technical audiences. **Key Responsibilities** - Design, develop, train, and maintain AI applications (NLP, ML, generative models). - Build data pipelines, manage metadata and model versioning, and integrate relational & NoSQL databases. - Deploy AI services on cloud, ensuring scalability, security, and compliance. - Apply MLOps best practices: CI/CD, containerization (Docker, Kubernetes), automated testing, and monitoring. - Collaborate with product and business teams to gather requirements, present solution blueprints, and refine AI models. - Conduct ethical and legal assessments of AI systems in enterprise settings. - Mentor junior engineers and maintain documentation for AI components. **Required Skills** - Programming: Python (pandas, scikit‑learn, PyTorch, TensorFlow, Transformers, spaCy, NLTK). - AI/ML: Large Language Models, generative AI, RAG, agentic workflows (OpenAI, LangChain, CrewAI), function calling, MCP. - Data Engineering: ETL, data pipelines, metadata/model versioning, SQL/NoSQL (Elasticsearch, MongoDB, Cassandra, HBase). - Cloud: AWS, Azure – deployment, scaling, security of AI services. - DevOps: Git, CI/CD, Docker, Kubernetes, Linux, Unix/Bash scripting, Agile/Scrum. - NLP Lifecycle & Quality Assurance: MT evaluation (BLEU, human metrics), query languages (SQL, Hive, Pig). - Tools: MS Teams, IntelliJ, Jira, Enterprise Architect. **Required Education & Certifications** - Master’s degree in Computer Science, Data Science, AI, or related field. - Optional: AWS Certified Machine Learning, Microsoft Azure AI Engineer Associate, SAS Certified Professional AI & ML.

Company Name: Cosmote Global Solutions
Job Title: Service Contract Performance Manager
Job Description: **Job Title** Service Contract Performance Manager **Role Summary** Lead the oversight, monitoring, and optimization of multi‑vendor service contracts to ensure compliance with SLAs, quality standards, and business objectives. Act as the central point of coordination between procurement, legal, technical teams, and external service providers, driving continuous improvement in service delivery and cost efficiency. **Expectations** - Manage a portfolio of service contracts, ensuring on‑time, on‑budget delivery and adherence to negotiated terms. - Sustain high levels of stakeholder satisfaction through proactive risk identification, issue resolution, and contractual negotiations. - Provide actionable insights to senior leadership through regular KPI and SLA reporting. **Key Responsibilities** 1. **Contract Management** – Oversee performance, compliance, and timely renewal of multiple service contracts. 2. **Performance Monitoring** – Continuously track provider metrics, detect gaps, and enforce corrective actions. 3. **Reporting & Documentation** – Generate and present weekly/monthly SLA and KPI reports to senior management. 4. **Cross‑functional Collaboration** – Coordinate with Procurement, Legal, and Technical teams to align contract terms and service requirements. 5. **Negotiation & Renewal** – Lead contract renegotiations and extensions to secure favorable terms and maintain service continuity. 6. **Risk & Issue Management** – Identify, assess, and mitigate potential risks and conflicts impacting service delivery. 7. **Continuous Improvement** – Design and implement initiatives that enhance service quality, efficiency, and customer satisfaction. 8. **Vendor Relationship Management** – Foster strong, collaborative relationships with key vendors to drive performance and innovation. **Required Skills** - Deep knowledge of SLAs, KPIs, and contract performance metrics. - Proven contract negotiation, vendor management, and risk mitigation experience. - Familiarity with ITIL or comparable service management frameworks. - Strong analytical, problem‑solving, and project management capabilities. - Excellent written and verbal communication; interpersonal skills for stakeholder management. - Proficiency in MS Office and contract‑management or project‑management software. **Required Education & Certifications** - Bachelor’s or Master’s degree in Business Administration, Supply Chain Management, or a related field. - Minimum 7 years of service contract or vendor management experience in a technology or IT services environment. - Relevant certifications (e.g., ITIL Foundation, Certified Project Management Professional) are a plus.

Company Name: Cosmote Global Solutions
Job Title: Service Manager - Hybrid Cloud Storage
Job Description: Job Title: Service Manager – Hybrid Cloud Storage Role Summary: Lead planning, delivery, and continuous improvement of hybrid cloud storage services, ensuring SLA compliance, optimal performance, and cost efficiency while partnering with cloud architects, infrastructure, and security teams. Expectations: Deliver high‑quality storage services that meet customer SLAs, drive service optimization, manage incident resolution, and maintain regulatory compliance; maintain clear documentation and proactive communication with stakeholders. Key Responsibilities: - Oversee service planning, delivery, and management of hybrid cloud storage solutions. - Develop and implement integration strategies for on‑premises and cloud storage, ensuring seamless hybrid environments. - Act as primary customer liaison, ensuring satisfaction and reliability. - Monitor performance, availability, and security; identify optimization opportunities. - Lead service performance, efficiency, and scalability improvements; preemptively address issues. - Manage incidents, disruptions, and problems; provide timely stakeholder communication. - Collaborate with cloud architects, infrastructure engineers, and security teams to align design, implementation, and maintenance with best practices. - Maintain comprehensive documentation of configurations, incidents, changes, and enhancements. - Produce regular performance reports and service reviews for senior management. - Ensure compliance with industry regulations, security standards, and policies. - Monitor and optimize costs related to hybrid cloud storage, balancing performance and cost efficiency. Required Skills: - 5+ years managing cloud storage, hybrid cloud, or IT infrastructure services. - Hands‑on experience with AWS, Azure, or Google Cloud storage platforms. - Proficiency in cloud service management tools (e.g., AWS Storage Gateway, Azure Storage, GCP Storage). - Strong project management, Agile/Scrum methodology experience. - Excellent communication and stakeholder engagement. - Understanding of data security, compliance (GDPR, HIPAA) in cloud environments. Required Education & Certifications: - Bachelor’s or Master’s Degree in Information Technology, Computer Science, or related field. - ITIL Foundation or equivalent Service Management certification preferred. - Cloud computing or storage certifications (e.g., AWS Certified Solutions Architect, Microsoft Certified: Azure Solutions Architect Expert) are a plus.

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