Data & Backend Software Engineer

Location: Paiania, Attica, Greece

Department: Technology

Workplace: hybrid

Employment Type: full

Description

We are looking for a Data & Backend Software Engineer to develop backend services, APIs and data-processing pipelines for analytics-driven applications. The role covers data acquisition, validation, normalization, storage and secure exposure of operational and time-series data.

Responsibilities

• Develop backend services and REST APIs.
• Build data-ingestion pipelines from APIs, databases, files and telemetry systems.
• Design relational schemas and normalized data models.
• Implement data validation, timestamp normalization, duplicate handling and quality checks.
• Build historical and scheduled data-processing workflows.
• Maintain traceability between source data and processed results.
• Implement authentication, logging, auditability and error handling.
• Write automated unit and integration tests and collaborate with AI/ML and domain engineering teams.

Requirements

• Degree in Computer Science, Software Engineering or a related field.
• Strong Python programming skills and experience developing backend applications.
• Experience designing and implementing REST APIs.
• Strong SQL knowledge and experience with relational databases.
• Experience with ETL/data-processing workflows.
• Understanding of database design, data validation and time-series data.
• Git, automated testing and good written and spoken English.

Nice to Have

• FastAPI and PostgreSQL.
• Asynchronous Python and background processing.
• Kafka, NiFi or similar integration technologies.
• Prometheus/time-series databases, Docker, Kubernetes and CI/CD.
• OAuth2/OpenID Connect and OpenAPI.
• Telecommunications, OSS/NMS or telemetry systems.

Personal characteristics

• Strong problem-solving skills, creativity and attention to detail
• Excellent communication and organizational skills
• Adaptable, with a strong desire to learn and take on new challenges
• Open to feedback, collaboration and continuous learning
• Team-oriented
• Results-oriented
• Self-motivated

Technology Stack

Python · FastAPI · PostgreSQL · SQL · REST/OpenAPI · pandas · Kafka · Docker · Kubernetes · Git · CI/CD

Benefits

INTRACOM TELECOM offers an excellent working environment that fosters team spirit, collaboration, and continuous learning. Career progression is based on performance, and we provide competitive remuneration aligned with our core belief: "Our competitive advantage is our human capital."

Additional benefits include:
✔ Continuous training and professional development to stay ahead of technological advancements.
✔ An equal opportunity workplace that values diversity, ensuring fair treatment regardless of ethnicity, nationality, religion, disability, gender, sexual orientation, union membership, political affiliation, or age.