Data Infrastructure Engineer (Java & Rust) — Flexible Hours

MWDN Ltd.; Województwo mazowieckie; Presencial; PLN 180.000 - 320.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flexible working hours

PTO 29 days

Free English classes

HR support

Independent contractor support / legal

Technical and legal support for remote

Descripción de la vacante

MWDN Ltd. is a global IT outstaffing company building an AI-powered data lakehouse platform. We seek a Data Infrastructure Engineer to design and maintain high-performance data lakehouse infrastructure with a focus on Apache Iceberg, Rust-based routing, and production-grade systems.

You will own data maintenance workflows and contribute to a multi-engine SQL routing stack. You’ll work on distributed data systems, review community contributions, and influence the product roadmap while enjoying

Formación

• 5+ years of software development in Java.
• Strong Rust development experience.
• Experience with TypeScript.
• Production experience with data infrastructure and production systems.
• Working knowledge of Apache Iceberg and Parquet.
• Solid PostgreSQL experience.
• Experience with Kubernetes.
• Understanding of data maintenance operations and data integrity.
• Ability to work independently and take ownership of technical solutions.
• Strong communication and collaboration skills, including code reviews and open-source contributions.

Responsabilidades

• Design and ship services turning table health signals into safe, correct maintenance operations.
• Ensure commits to customer tables are verifiably correct under concurrency, retries, and partial failures.
• Develop a production-grade data maintenance system, including a compaction engine and related tooling.
• Maintain QueryFlux: triage issues, review PRs, build new connectors, and cut releases.
• Run what you build in production, including on-call and debugging in customer environments.

Conocimientos

Java

Rust

TypeScript

PostgreSQL

Kubernetes

Data maintenance

Data integrity

Code reviews

Open-source contributions

Communication

Herramientas

Apache Iceberg

Parquet

SQL routing / multi-engine systems

Descripción del empleo

MWDN Ltd. is a global IT outstaffing company building an AI-powered data lakehouse platform. We seek a Data Infrastructure Engineer to design and maintain high-performance data lakehouse infrastructure with a focus on Apache Iceberg, Rust-based routing, and production-grade systems.

You will own data maintenance workflows and contribute to a multi-engine SQL routing stack. You’ll work on distributed data systems, review community contributions, and influence the product roadmap while enjoying