{"id":3454762,"url":"https://alion.io/job/qualco-data-architect","title":"Data Architect","company":{"id":55578,"name":"QUALCO","domain":"qualco.tech","url":"https://alion.io/company/qualco","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":91,"open_postings":14,"ghost_share":0,"stale_share":0.571,"repost_share":0,"time_to_fill_p50_days":21,"computed_at":"2026-11-08T05:47:12Z"}},"role":"Data Science","role_family":"Data Science","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Athens, Greece"],"countries":["GR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":41000,"max_usd":98000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":781},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Airflow","optional":false},{"name":"Apache NiFi","optional":false},{"name":"dbt","optional":false},{"name":"ETL/ELT","optional":false},{"name":"GDPR","optional":false},{"name":"Informatica","optional":false},{"name":"Oracle","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"SSIS","optional":false},{"name":"Talend","optional":false}],"status":"live","first_seen_at":"2026-10-29T12:36:07Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-08T07:08:34Z","board_verified":true,"closed_at":null,"days_open":9,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":9},"description":"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.\nAt Quento Technologies S.A. we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide.\nQuento 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.\nYour responsibilities will entail:\nDefine and maintain the overall data solution architecture;\nDesign data domains, integration patterns, transformation layers, and reconciliation processing flows;\nDefine source-to-target mapping standards, data processing patterns, and results persistence structures;\nSupport technology configuration decisions, implementation guidance, and technical design reviews;\nCollaborate with Data Engineering, DevOps, QA, and Telekom stakeholders on technical requirements and architectural decisions;\nEnsuring 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.\nRequirements\nUniversity degree in Computer Science, Engineering, or a related field;\n8+ years of professional experience in Data Architecture, Data Engineering, or Data Integration;\nAt least 4-5 years in a Data Architect or Solution Architect capacity on comparable enterprise data platform or data integration projects;\nEnterprise data architecture and ETL/ELT solution design;\nStrong experience in conceptual, logical, and physical data modeling, including relational schema design, canonical data models, reference data structures, and reconciliation results modeling;\nDesign of batch integration, file-based ingestion, transformation, and reconciliation workflows;\nData quality, data matching, traceability, auditability, and reconciliation control design;\nIncremental processing, idempotency, error handling, and reprocessing strategies;\nIntegration architecture, orchestration patterns, and version-controlled development;\nOn-premises deployment architecture and familiarity with security and operational requirements;\nExperience in telecommunications, billing, Revenue Assurance, financial reconciliation, or other data-intensive enterprise environments.\nRelevant Technologies / Experience\nPostgreSQL, Oracle, SQL Server, Python, dbt Core, Apache Airflow, Meltano/Singer, Informatica, Talend, SSIS, Apache NiFi, or equivalent ETL/ELT and database technologies.\nBenefits\nYour Life @ Qualco Group\nOn top of challenging work environment, we are offering:\nCompetitive compensation, ticket restaurant card, and annual bonus programs\nCutting-edge IT equipment, mobile and data plan\nModern facilities, free coffee and beverages, indoor parking, and company bus\nPrivate health insurance, onsite occupational doctor, and workplace counselor\nFlexible working model, hybrid benefits & home equipment benefits\nOnsite gym, wellness facilities, and ping pong room\nCareer and talent development tools\nMentoring, coaching, personalized annual learning and development plan\nEmployee referral bonus, regular wellbeing, ESG and volunteering activities\nYour 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.\nDisclaimer: 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. 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