Data Architect

At Quento Technologies S.A., the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento Technologies S.A. we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide.

Quento Technologies S.A. seeks a highly motivated and experienced a Data Architect to be responsible for the end-to-end data solution architecture, covering ingestion, transformation, reconciliation processing, data persistence, and integration with reporting and operational systems. Ensures architectural consistency, maintainability, and alignment with Telekom's technical and infrastructure requirements.

Your responsibilities will entail:

• Define and maintain the overall data solution architecture;
• Design data domains, integration patterns, transformation layers, and reconciliation processing flows;
• Define source-to-target mapping standards, data processing patterns, and results persistence structures;
• Support technology configuration decisions, implementation guidance, and technical design reviews;
• Collaborate with Data Engineering, DevOps, QA, and Telekom stakeholders on technical requirements and architectural decisions;
• Ensuring that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.

Requirements

• University degree in Computer Science, Engineering, or a related field;
• 8+ years of professional experience in Data Architecture, Data Engineering, or Data Integration;
• At least 4–5 years in a Data Architect or Solution Architect capacity on comparable enterprise data platform or data integration projects;
• Enterprise data architecture and ETL/ELT solution design;
• Strong experience in conceptual, logical, and physical data modeling, including relational schema design, canonical data models, reference data structures, and reconciliation results modeling;
• Design of batch integration, file-based ingestion, transformation, and reconciliation workflows;
• Data quality, data matching, traceability, auditability, and reconciliation control design;
• Incremental processing, idempotency, error handling, and reprocessing strategies;
• Integration architecture, orchestration patterns, and version-controlled development;
• On-premises deployment architecture and familiarity with security and operational requirements;
• Experience in telecommunications, billing, Revenue Assurance, financial reconciliation, or other data-intensive enterprise environments.

Relevant Technologies / Experience

• PostgreSQL, Oracle, SQL Server, Python, dbt Core, Apache Airflow, Meltano/Singer, Informatica, Talend, SSIS, Apache NiFi, or equivalent ETL/ELT and database technologies.

Benefits

Your Life @ Qualco Group
On top of challenging work environment, we are offering:

💸 Competitive compensation, ticket restaurant card, and annual bonus programs
💻 Cutting-edge IT equipment, mobile and data plan
🏢 Modern facilities, free coffee and beverages, indoor parking, and company bus
👨‍⚕ Private health insurance, onsite occupational doctor, and workplace counselor
🏝️ Flexible working model, hybrid benefits & home equipment benefits
🤸‍♂️ Onsite gym, wellness facilities, and ping pong room
💡 Career and talent development tools
🎓 Mentoring, coaching, personalized annual learning and development plan
🌱 Employee referral bonus, regular wellbeing, ESG and volunteering activities

Your race, gender identity and expression, age ethnicity or disability make no difference in Quento Technologies S.A. We want to attract, develop, promote, and retain the best people based only on their ability and behavior.

Disclaimer: Quento Technologies S.A. collects and processes personal data in accordance with the EU General Data Protection Regulation (GDPR). We are bound to use the information provided within your job application for recruitment purposes only and not to share these with any third parties. For more details on the processing of your personal data during the Recruitment procedure, please be informed in the Recruitment Notice, before the submission of your application.