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Senior Data Architect / Data Engineer

Summary

Designs and builds scalable data platforms and real-time analytics solutions using technologies like Apache Druid, Kafka, and Flink to process billions of events for enterprise clients.

Xebia is a global AI-first, digital transformation, and engineering partner. With over 25 years of experience and a team of 5,000 professionals across 16 countries, we help organizations design and build scalable products, platforms, and data-driven solutions.

We specialize in Artificial Intelligence, Data and Cloud, Intelligent Automation, and Digital Products, combining deep technical expertise with a strong focus on engineering excellence and a people-first culture.

In the CEE region, we’re a team of nearly 1,000 experts delivering modern applications, data platforms, and AI solutions for clients such as McLaren, Aviva, Deloitte, Spotify, Disney, ING, UPS, Tesco, Truecaller, AllSaints, Volotea, Schmitz Cargobull, Allegro, InPost, and many, many more. We work with leading technologies including AWS, Azure, GCP, Databricks, and Snowflake, and combine strong engineering culture with a consulting mindset and a continuous focus on growth and knowledge sharing.

You will be:

  • analyzing and assessing the current multi-store reporting architecture,
  • designing a scalable, high-performance reporting solution capable of handling very large data volumes,
  • defining data modeling strategies for analytics and reporting workloads,
  • designing approaches for event enrichment using metadata from multiple sources,
  • creating efficient solutions for computing unique counts and analytical aggregations at scale,
  • providing architectural guidance around real-time and near real-time analytics,
  • evaluating and recommending technologies, patterns, and trade-offs across the data platform,
  • collaborating with engineering teams to implement the proposed architecture,
  • supporting migration activities and ensure reporting consistency throughout the transition,
  • driving best practices related to data quality, scalability, observability, and performance optimization,
  • providing technical guidance and mentorship to engineering team members.

Your profile:

  • 7+ years of experience in Data Engineering, Data Architecture, or related roles,
  • strong hands-on expertise with Apache Druid,
  • strong experience with Kafka and event-driven architectures,
  • excellent knowledge of large-scale analytical data modeling,
  • experience designing real-time or near real-time reporting platforms,
  • strong expertise in SQL and MySQL,
  • experience processing and analyzing billions of events,
  • deep understanding of distributed data systems and performance optimization,
  • ability to independently assess existing architectures and propose improvements,
  • excellent communication skills and stakeholder management capabilities,
  • experience with Apache Flink as well as streaming data pipelines and stream processing.
  • fluent English (spoken and written).

Work from the European Union region and a work permit are required.

Nice to have:

  • knowledge of data enrichment and dimensional modeling techniques,
  • experience implementing scalable unique-count solutions (e.g., HyperLogLog or similar approaches),
  • exposure to cloud-based data platforms and modern analytics architectures,
  • experience mentoring engineers and providing technical leadership,
  • experience with ClickHouse,
  • experience with modern lakehouse architectures, open table formats (e.g., Apache Iceberg), or data lakes,
  • background in SaaS, martech, or customer engagement platforms.

Recruitment Process:

CV review – HR call – InterviewClient Interview – Decision

What this application asks

greenhouse

First Name, Last Name, Email, Phone, Resume/CV, Cover Letter

  • LinkedIn Profile optional
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  • What is your notice period?
  • What is your preferred form of cooperation?
  • What are your financial expectations?
  • Please specify if the given salary is in net or gross value
  • Please specify if the salary expectation are provided hourly or monthly
  • Currency of the salary expectations
  • What country do you currently reside in? choose one
  • Do you have documents entitling you to work in the European Union (valid work permits to work in the EU)? choose one
  • Do you speak English at a minimum B2 level? choose one
  • I declare that I agree to the processing of my Personal Data contained in the content of documents sent in response to the job/cooperation offer, and Personal Data collected during a possible recruitment interview, in order to participate in future recruitment processes conducted by the Administrator, i.e. Xebia sp. z o.o. with its registered office in Wrocław. choose one · optional
  • I declare that I agree to sending to my e-mail address indicated in the content of recruitment documents, any information about recruitment processes conducted by the Administrator, i.e. Xebia sp. z o.o. with its registered office in Wrocław. choose one · optional
  • The administrator of Personal Data is Xebia sp. z o.o. with its registered office in Wrocław, ul. Sucha 3, 50-086 Wrocław, KRS: 0000978067, NIP: 8971719181, REGON: 020363023 with a share capital of PLN 37 168 600.00. Your data contained in the CV will be processed only for recruitment purposes. The legal basis for the processing of your personal data is art. 221 cl. 1 of the Labour Code. If you provide separate consent, we will process your personal data also for future recruitment purposes. You have the right to access your personal data, to correct them, to remove them, to restrict their processing, to transfer your data, to submit an objection, to withdraw consent to data processing any time without affecting the lawfulness of processing carried out on the basis of the consent before it was withdrawn. In order to exercise the abovementioned rights, please send an e-mail with your request to: gdpr.pl@xebia.com. If you believe that your data are processed illegally, you can submit a complaint to the supervisory body with its registered office in ul. Stawki 2, Warsaw. We may only disclose your personal data if you provide consent thereto or to authorised bodies, when necessary. choose one · optional

See also