Data Engineer (EU Candidates)

LOCATION: BIAŁYSTOK, GDANSK, HYBRID, KATOWICE, LODZ, PILA, POZNAN, REMOTE, WROCLAW - ONGOING Data Engineer (EU Candidates) Hi there! We are the biggest European Python Powerhouse with over 17 y


Data Engineer (EU Candidates)

Hi there!

We are the biggest European Python Powerhouse with over 17 years of experience, 8 offices in Poland and deep commitment to Agile principles. Join a group of 500+ professionals dedicated to helping customers build outstanding products.

Are you the NEXT one?

“The data revolution has enabled us to create software solutions which mimic our intelligence behavior. I always want to be part of it by building data and artificial intelligence products. For my team I’m looking for those who are not afraid of challenges and want to solve difficult problems which eventually help people with use data engineering and machine learning. “

– dr Krzysztof Sopyła – Head of Machine Learning and Data Engineering


up 20 160 zł + VAT

up to 28 560 zł + VAT

What do we need from you?

Core values

We believe that every problem has a solution, often hidden and not so obvious. Our job is to work out them and the best are born from imagination, cooperation and being craftsmanship.

How do we work?

We work with clients for their benefit and the benefit of their target users. We often act as consultants and architects, people who tear down the existing order, introducing changes and innovations. But just as often we act as craftsmen who must deliver software of the highest quality.

How the daily work will look like?

You will be assigned to a team working on a project for one of our foreign clients. Your responsibilities will include developing, inventing and implementing solutions to process large or distributed data.

What is expected of you?

As a Data Engineer, on a daily basis you will work with systems that process data often on a large scale.

We expect knowledge of:

  • best practices for designing scalable data processing systems, including data pipelines, advanced ETL processes, data warehouses and data lakes
  • at least one cloud platform (AWS, Azure, GCP) and its solutions related to data processing
  • SQL and at least one relational database management system like MySQL or PostgreSQL
  • at least one NoSQL database like HBase, DynamoDB or MongoDB
  • working principles of distributed data processing systems (Apache Spark, Apache Flink or similar)

Python and software development practices:

  • experience in Python 3.x
    • more advanced python constructs as: lambda functions, generators, list comprehension etc
    • core principles of object-oriented programming
    • understanding of the threading and multi-process computation in Python
  • experience in using code versioning tools, such as Git
  • day-to-day work experience with Docker

Soft skills:

  • good communication skills in English (minimum B2)
  • eagerness to develop yourself and learn new technologies
  • problem solving and analytical thinking

Your experience rating will also be affected by your other skills such as:

  • understanding and knowing message broker systems like Apache Kafka or AWS Kinesis
  • experience in using orchestration tools like Apache Airflow or Dagster
  • knowledge of search systems like ElasticSearch or Solr
  • experience in using CI/CD tools like Github Actions
  • experience in implementing solutions using frameworks like Hadoop, Hive or Presto
  • experience in machine learning or statistics
  • other development skills like REST API or GraphQL
  • data scraping experience



Conferences, books, online or offline courses

Use your annual training budget and decide on the direction of your professional development. STX Next covers 75% costs of training, conferences and language course.

Work-life balance

We are open to discussing individual needs. Set up working hours and limited remote work scheduled with your team and manager, in a way that works for both sides.

Monthly party budget

They say that little party with your colleagues is always a good idea 🙂

Reimbursed private medical care (Medicover) and Multisport

We care about the health and well-being of our colleagues. Choose a sports card and dedicated medical care for yourself and your relatives.

Bring your own device option

You only enjoy working on your own computer? No problem, just bring it into our office and get a financial equipment bonus.

Internal referral program

Want to help us to expand our team of superheroes? Recommend a friend to STX Next and get a bonus.

Leader’s support

Conferences’, internal trainings’ and permanent meetups’ speakers – join the STX Next crew and work with true enthusiasts and professionals!

Technology focus

Python and JavaScript are not our only strengths, we are also very good at React Native, IoT, Machine Learning, DevOps and Blockchain.

Growth review

Junior, Regular or Senior? Every half a year we have a chance to discuss acquired skills and prepare a development plan for upcoming months .


Craft Thursdays, Friday movie marathons, and board games – join local events in your office.


Recruitment process


Are you interested in our offer? Feel free to apply by attaching your CV and we will contact you within 24 hours.

Let’s get to know each other

A f2f or Hangouts meeting- these are the options we will offer after verifying your application. If there are additional questions from our side, we will arrange for a short phone call before the meeting. The meeting will last no more than 1-1.5h.

Show us what you can do

Technical verification is a good time to show your superpowers! Technical interview is a meeting based on tasks, a case study and practical and theoretical questions. The meeting will last approx. 2h.

Time for a decision

We value your time and commitment- regardless of the outcome of the recruitment process, we will return to you with a decision and extensive feedback. Upon completion of the recruitment, we will also be happy to know your feedback about our recruitment process.


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