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Semantic Data Engineer

EUROPEAN DYNAMICS eurodyn.com Open · verified Oct 24, 2026
Remote Athens Full-time Mid-level Data Engineering

At a glance

Mid-level Data Engineering role at EUROPEAN DYNAMICS. Remote, Greece · full-time.

Pay not stated Data Engineer salary

RoleData Engineering
SeniorityMid-level
LocationAthens
WorkplaceRemote
EmploymentFull-time
PostedOct 14, 2026 · 10d ago
Role brief

dataroles summary, based on the employer's posting.

What you'll do

  • Maintain RDF and TTL models and vocabularies, then adapt them as the semantic layer evolves
  • Build and tune SPARQL queries, keeping them useful for the platform’s structured data
  • Support workflows that ingest, transform and validate data, checking semantic consistency across the platform
  • Work with backend engineers to connect semantic logic to application flows and resolve data-quality or reasoning problems
  • Document model assumptions and constraints so others can follow the semantic design

What you bring

  • At least three years working with semantic or data-focused systems
  • Strong command of RDF, RDFS, OWL and SPARQL
  • Experience with knowledge graphs or interoperability platforms, plus data modelling and ontology design
  • You can interpret existing models, including the domain logic they imply

Who this fits

This role suits a mid-level specialist focused on semantic modelling and production data systems. It is based remotely in Athens, Greece.

From the employer

We are seeking a Semantic / Data Engineer to support a complex platform built around RDF data models, SPARQL queries, and structured datasets. You will be responsible for understanding, maintaining, and evolving the semantic layer of the system, working closely with backend engineers and architects. This role suits a specialist who enjoys data modelling, semantics, and knowledge representation in real-world production systems.

What You'll Do:

  • Analyse and maintain RDF/TTL data models and vocabularies;
  • Develop, optimise, and maintain SPARQL queries;
  • Support data ingestion, transformation, and validation workflows;
  • Ensure consistency and correctness of semantic data across the platform;
  • Collaborate with backend engineers to integrate semantic logic into application flows;
  • Assist in documenting semantic models, assumptions, and constraints;
  • Participate in troubleshooting data quality and reasoning issues.

Requirements

  • 3+ years of experience working with semantic or data-centric systems;
  • Strong knowledge of:
    • RDF, RDFS, OWL
    • SPARQL
  • Experience with:
    • Knowledge graphs or semantic interoperability platforms;
    • Data modelling and ontology design;
  • Comfortable working with structured data formats:
    • TTL, XML, JSON, CSV
  • Ability to analyse existing models and understand implicit domain logic.

Nice-to-Have:

  • Experience with triplestores or graph databases;
  • Familiarity with EU data standards or interoperability frameworks;
  • Python scripting for data processing and/or Apache Airflow;
  • Experience in projects with regulatory or standards-driven constraints.

Benefits

We believe in rewarding talent and dedication. Here's what you can expect as part of our team:

  • Competitive full-time salary;
  • Private Health Coverage on the Company’s group program;
  • Flexible Working Hours;
  • Top-of-the-Line Tools;
  • Professional Development: Benefit from language courses, specialized training, and continuous learning opportunities;
  • Career Growth: Work with some of the most innovative and exciting specialists in the industry;
  • Dynamic Work Environment: Thrive in a setting that offers challenging goals, autonomy, and mentoring, fostering both personal and company growth.

If you want an exciting challenge, work with some of the coolest technologies, and enjoy your time doing it, then join us! Submit your detailed CV in English, quoting reference: (SDE/10/26).

You may also consider all our other open vacancies by visiting the career section of our website (www.eurodyn.com) and follow us on Twitter (@EURODYN_Careers) and LinkedIn.

EUROPEAN DYNAMICS (ED) (www.eurodyn.com) is a leading European Software, Information, and Communication Technologies company, operating internationally (Athens, Brussels, Luxembourg, Copenhagen, Berlin, Stockholm, London, Nicosia, Valetta, Vienna, Den Haag, Hong Kong, etc.) The company employs over 1200 engineers, IT experts, and consultants (around 3% PhD, 41% MSc, and 54% BSc). We design and develop software applications using integrated, state-of-the-art technology. Our current IT projects have a value exceeding 300 million EURO. EUROPEAN DYNAMICS is a renowned supplier of IT services to European Union Institutions, international organizations, European Agencies, and national government Administrations in 40 countries and 4 continents.

As part of our dedication to the diversity of our workforce, we are committed to Equal Employment Opportunity without regard for race, colour, national origin, ethnicity, gender, disability, sexual orientation, gender identity, or religion.

EUROPEAN DYNAMICS (ED) adheres to the General Data Protection Regulation principles by applying its Privacy Policy as published at www.eurodyn.com/privacy. By submitting an application to this position and by sharing your personal data with ED, you acknowledge and accept its Policy and authorize ED to process your personal data for the purposes of the company's recruitment opportunities, in line with the Policy.

Opportunity

Data Engineering work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Data EngineeringRemote

Find me work

By the team behind dataroles.

Find me work
Opportunity

Data Engineering work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Find me work

By the team behind dataroles.