Lead Software Engineer

Mindbox is a tech-driven company connecting top IT talents with technology projects for leading enterprises across Europe. The company focuses on consulting, engineering, and building digital solutions. The role involves joining the global development team to design and implement next-generation data platforms, collaborating with teams in Poland, the UK, India, and China.

• Strong hands-on experience with PySpark (DataFrame APIs, tuning, debugging).
• Practical knowledge of Apache Iceberg, including optimisation techniques, internal architecture understanding, and maintenance operations.
• Solid software engineering fundamentals: clean, testable, maintainable code, problem-solving.
• Experience with CI/CD pipelines, observability, and stability improvements in production systems.
• Excellent communication skills and ability to work in global teams.
• Ownership mindset and responsibility for end-to-end delivery.
• Fluency in English (spoken & written).

• 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 pipelines, observability, and production readiness.
• Provide support for owned services and datasets, including on-call duties.
• Mentor and coach junior engineers; lead technical design discussions.