Data Engineer

Company: The Codest - International Tech Software Company with technology centers in Poland delivering global IT solutions and projects.

Core values: "Clients and people first" approach prioritizing client needs and collaborative work environment.

Experience focus: Web development, DevOps, and QA, specializing in scaling technology teams for clients and partners.

Project description: Client is one of the largest e-commerce platforms in Europe, serving millions daily, connecting sellers from small businesses to global brands with customers, offering a wide product selection, fast delivery, and refined shopping experience.

Project role: Join the team building a new platform for planning and launching advertising campaigns across multiple channels, used by major market brands.

Goal: Create high-performance data processes emphasizing low latency, scalability, and quality.

Must have:

• At least 3 years of commercial experience as a Data Engineer.
• Good knowledge of Python and SQL.
• Fluent Polish language skills.

Nice to have:

• Experience working on projects combining large and fast data.
• Experience and knowledge of Scala, Cloud (AWS, GCP, Azure), Apache Spark.

• Build and develop new data pipelines in the RTB environment.
• Design ultra-low latency systems (millions QPS), including latency budgeting and performance optimization.
• Participate in shaping solution architecture ensuring balance between quality, scalability, and implementation efficiency.
• Implement solutions in Python, SQL, and Kafka; analyze Go code in partner services; work with Scala/JVM stack (Spark/Flink).
• Assist in deployment process management and system maintenance in cloud environments (mainly GCP).

Candidates must have fluent Polish language skills.