Back-end Engineer (Java/Python) - Data Platform

O projekcie

• Prestigious position at one of the world’s largest banks
• Stable, long-term projects
• Competitive salary with a B2B contract
• Hybrid work (6 days per month from the office in Cracow)
• Private healthcare and multisport card
• Personal growth and development opportunities with the possibility to rotate between projects

Zakres obowiązków

• Build back-end services and REST APIs for source registration, metadata retrieval and lifecycle management
• Develop integrations with external sources, handling pagination, rate limits, errors and content changes
• Design and evolve the metadata model (identifiers, versioning, content hashes, ownership, relationships)
• Create reliable data contracts and persistence layers with idempotent, safe reprocessing
• Build reusable components for classification, enrichment, provenance, lineage and data quality
• Add observability to services: status, latency, error classification, logs, metrics and traces
• Integrate with the Knowledge Catalogue and the wider Knowledge Platform
• Write unit, integration and contract tests, and contribute to CI/CD and production support
• Work closely with the Technical Lead, architects and analysts to turn requirements into production-ready solutions

Wymagania

• Experience building and running production-grade back-end services
• Strong Java or Python skills (or a similar language), with a focus on clean, testable code
• Hands-on experience designing REST APIs, data models and schema evolution
• Solid SQL and relational database design skills (keys, constraints, indexing, transactions)
• Familiarity with NoSQL and graph databases (LPG/RDF)
• Understanding of versioning, idempotent processing, data lineage or data quality concepts
• Experience integrating external APIs and working with structured and unstructured data
• Practical knowledge of cloud services, CI/CD and observability
• Strong problem-solving skills and a collaborative mindset

Oferujemy

• Sport subscription
• Training budget
• Private healthcare
• Free coffee
• Gym
• Bike parking
• Playroom
• Shower
• Free snacks
• Mobile phone
• Free parking