About the Company

OTE Group is the largest technology company in Greece and a member of the Deutsche Telekom Group. Through technology and innovation, we work to create a better world for all.

Diversity, inclusion and equality are at the core of our corporate culture.

This is the reason why we create an equal working environment in which our people can excel for their expertise, professional experience, conscientiousness, and responsibility.

Become part of our network and let’s create your future together!

About the role

As a member of the Mediation Systems team, the candidate will be responsible for designing, developing, and maintaining Mediation software systems and applications under his organizational unit accountability.

Duties & responsibilities

• Analysis and design based on technical and commercial requirements. 

−         Collaboration with the team to understand project needs. 

−         Conversion of requirements into technical specifications for Mediation systems. 

−         Writing technical documentation. 

• Implementation and certification of solutions in Mediation systems (Telecom Mediation, Privacy Ingestion Layer) 

−         Implementation and configuration of the systems. 

−         Tests design and execution to evaluate system functionality. 

−         Ensuring quality assurance.

−         Organizing the deployment of solutions into production environments according to internal procedures. 

• Maintenance and support of production Mediation systems.

−         Providing technical support to the team and other departments. 

−         Handling critical issues and ensuring the smooth operation of the system. 

−         Identifying and fixing bugs. 

−         Organizing and executing system upgrades. 

• Compliance with Standards and Security

−         Ensuring that systems meet security standards, sensitive data protection, and regulatory compliance. 

−         Monitoring and implementing international telecommunications standards (3GPP, GSMA, etc.). 

• Coordination and management of external teams 

−         Participating in meetings to coordinate activities of partners and vendors. 

−         Monitoring and ensuring the quality of deliverables from partners and vendors. 

Required Skills

• Bachelor’s or Master degree (or equivalent) in Computer Science or a related field
• At least 3 years of experience as an IT engineer
• Experience in one or more programming languages, such as  Java or Python
• Experience in Relational Databases, SQL and PL/SQL (Oracle or MySQL DB)
• Knowledge of Software Development methodologies (Waterfall, Agile) and the Software Development Lifecycle overall
• Familiarity with Linux operating systems (Red Hat, Ubuntu etc.)
• Experience in writing unit tests and conducting debugging to ensure the reliability and quality of software
• Strong problem-solving skills to analyze complex issues, identify root causes, and implement effective solutions
• Awareness of security best practices including encryption, authentication, and authorization mechanisms, to build secure software
• Effective communication skills to collaborate with cross-functional teams, gather requirements
• Commitment to continuous learning and staying updated with evolving technologies and best practices in software engineering
• Familiarity with DevOps practices and tools, including CI/CD pipelines, containerization (e.g., Docker), and orchestration (e.g., Kubernetes) will be considered a plus
• Ability to create clear and concise documentation for code, APIs, and software design

What we offer

At OTE Group, we recognize and reward every effort without discrimination, through a wide range of benefits and programs for our people:

Your benefits

• Competitive remuneration package
• Cafeteria benefits
• Company Mobile & Device Subsidies
• Fixed telephony, Internet & COSMOTE TV Packages
• Modern working environment, working laptop only

Your balance

• Flexible working arrangements
• Private insurance for employees and their family members
• Family Care: Maternity, childbirth and parental leave to care for children, above the minimum required by law. Provided equally to working mothers & fathers

Your wellness

• Health, safety & wellness programs: Exercise & Wellness Platform “The Coach”
• Wellness and sports activities, dietician appointments, medical check-ups, etc.
• OTE Group psychological service

Your development

We foster an empowering culture, encouraging our people to seize every opportunity to learn with the goal to achieve personal development, through:

• Unlimited access to digital learning platforms Percipio & Coursera
• Various f2f custom made learning academies
• Talent & rotation programs

Your On-boarding

• Virtual new hire pre-boarding & onboarding program
• A buddy to support you in the first months working with us