Senior Backend Engineer (Python)

Location: Athens, Greece We are looking for a Senior Backend Engineer (Python) to join a technically demanding project involving data-intensive processing, system integration, and semantic technologies. You will play a key role in taking ownership of an existing codebase, stabilising it, and evolving it in line with project requirements. This role is ideal for an experienced engineer who is comfortable working with complex systems and understands data-driven architectures . What You'll Do: Analyse, understand, and take ownership of an existing Python-based backend; Refactor and enhance backend components with a focus on maintainability and performance; Implement and maintain data processing pipelines and integration logic; Collaborate closely with data/semantic engineers on RDF/SPARQL-driven workflows; Contribute to architecture reconstruction and technical documentation; Support deployment, configuration, and troubleshooting activities; Ensure code quality through reviews, testing, and best practices. Requirements 3+ years of professional experience in backend development; Strong proficiency in Python; Experience with: Apache Airflow and AWS; Data-intensive or integration-heavy systems; APIs, batch processing, and backend services; Configuration-driven systems (XML / JSON / YAML); Solid understanding of: Software architecture and design patterns; Debugging and working with legacy codebases; Experience working in complex, multi-stakeholder projects (EU or public-sector projects is a plus). Nice-to-Have: Familiarity with Semantic Web technologies (RDF, SPARQL, OWL); Experience with data modelling or knowledge-based systems; Exposure to DevOps practices (CI/CD, containerisation); Experience contributing to or maintaining technical documentation (e.g. AsciiDoc, Antora). 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: ( SBEP/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.