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Data Engineer (Freelancer)


130,00170,00 net (+ VAT) / hr.
  • Company location
    Gliwice, Silesian
  • Work location

    Poland (remote work)

  • offer expired over a month ago
  • B2B contract
  • full-time
  • specialist (Mid / Regular)
  • home office work, hybrid work
  • remote recruitment
  • Specializations:Big Data / Data Science


Kaczyniec 9


Technologies we use


  • SQL


  • Apache Spark

  • Hadoop

  • Python

  • Java

  • Scala

  • Git

  • PostgreSQL

  • MongoDB

  • Amazon Redshift

About the project

We are seeking a talented and driven Data Engineer to join our innovative team in an AI environment. As a freelance Data Engineer, you will play a pivotal role in designing, building, and managing end-to-end data solutions for AI projects in flexible working hours. Additionally, there is potential for future full-time collaboration opportunities.

*Please note that this position is freelance, and we may require your services on an irregular basis. This means that your workload may vary from month to month, depending on our project demands. Your involvement will primarily focus on MVP and PoC projects.

LOCATION: Gliwice (in a brand new office located at Kaczyniec street 9), hybrid or remote up to 100%

Your responsibilities

  • Collaborate with AI researchers and data scientists to understand data requirements for AI projects. Design and implement robust data architectures and pipelines to support data collection, storage, and processing needs.

  • Identify, collect, and integrate diverse data sources, including structured and unstructured data, from both internal and external repositories. Ensure data quality and consistency throughout the data integration process.

  • Develop data transformation and preprocessing pipelines to clean, normalize, and enrich data for AI model training and analysis. Handle large-scale data efficiently and effectively.

Our requirements

  • 3 years of experience as a Data Engineer, with a focus on data engineering in AI or machine learning projects.

  • Proficiency in data modeling, data integration, and data transformation using SQL and relevant tools (e.g., Apache Spark, Hadoop).

  • Demonstrated experience with ETL processes and tools to handle large-scale data.

  • Excellent communication and teamwork abilities to collaborate effectively with cross-functional teams.

  • Ability to thrive in a fast-paced, evolving AI environment, and manage multiple projects simultaneously.


  • Bachelor’s or Master’s degree in Computer Science, Engineering, Data Science, or a related field.

  • Solid programming skills in languages such as Python, Java, or Scala. Familiarity with version control systems (e.g., Git).

  • Knowledge of various database systems and data warehousing concepts (e.g., PostgreSQL, MongoDB, Amazon Redshift).

This is how we organize our work

This is how we work

  • in house
  • you have influence on the choice of tools and technologies
  • you have influence on the technological solutions applied
  • you have influence on the product
  • agile
  • scrum

Development opportunities we offer

  • mentoring

  • technical knowledge exchange within the company

What we offer

We offer a dynamic and creative work environment with a diverse and international team. If you are passionate about developing high-quality software and working with cutting-edge technologies, we encourage you to apply for this exciting opportunity.


  • private medical care

  • sharing the costs of professional training & courses

  • remote work opportunities

  • flexible working time

  • integration events

  • computer available for private use

  • parking space for employees

  • leisure zone

  • employee referral program

  • charity initiatives

  • extra leave

Recruitment stages

Contact from our recruiter


Online meeting


  • STEP 1: Be #bravenough and send an application to us.

  • STEP 2: Stay tuned as our recruiter will contact you shortly (regardless of our decision after screening your CV).

  • STEP 3: Let’s organize an online meeting during which you will meet other brave people from your team.


If you want to work with startups but you are afraid that it is not a stable environment, you should definitely apply to us! Founders of co.brick already have an experience on how to develop a startup that can be sold for more than 1 bln USD (google about the transaction between Hybris and SAP), and now we all are doing everything we can to reduce all the risks while developing innovative products other startups.


As we have been operating for 4 years on the market, we still consider co.brick as a startup. We work with our partners – other startups mostly from Western Europe and the US who are developing brand-new cloud solutions in the newest technologies. While being at co.brick, you will work exclusively with one partner on their product development.

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