Lead Data Engineer at Mindbox Sp. z o.o. – Kraków | Jobyssey

Nasze wymagania:

Strong hands-on experience with PySpark (DataFrame APIs, tuning, debugging).
Practical knowledge of Apache Iceberg, including:
Optimisation techniques (partitioning strategy, file sizing, layout).
Internal architecture understanding (snapshots, manifests, schema evolution).
Maintenance operations (rewrite/compaction, orphan file cleanup, metadata handling).
Solid software engineering fundamentals: clean, testable, maintainable code, problem-solving.
Experience with CI/CD pipelines, observability, stability improvements in production systems.
Ability to work in global teams, excellent communication skills.
Ownership mindset and responsibility for end-to-end delivery.
Fluency in English (spoken & written).

O projekcie:

We are seeking an experienced Lead Data Engineer to join our client's global development team and drive the design and implementation of next-generation data platforms. You will work closely with teams in Poland, the UK, India, and China to enhance platform capabilities, improve performance, and ensure operational excellence.

Zakres obowiązków:

Analyse and capture functional & non-functional requirements for near-term deliveries and long-term evolution.
Design and implement data pipelines and table management workflows using PySpark and Apache Iceberg.
Drive Apache Iceberg performance and cost optimisation (e.g., file sizing, partitioning, clustering, query efficiency).
Manage and improve Apache Iceberg maintenance (compaction, rewrite, snapshot/metadata management, orphan file handling).
Apply strong understanding of Iceberg internals (metadata layout, schema evolution, partition specs).
Ensure high engineering standards via code reviews, test automation, CI/CD, observability, and production readiness.
Provide support for owned services and datasets, including on-call duties.
Mentor and coach junior engineers; lead technical design discussions.
Note: Detailed project information will be shared during the recruitment process.

Oferujemy:

Flexible cooperation model
Hybrid work setup – 6 days a month from the office in Kraków
Collaborative team culture – work alongside experienced professionals eager to share knowledge.
Continuous development – access to training platforms and growth opportunities.
Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more.
High quality equipment – laptop and essential software provided.

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