Data Engineer
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Specialization Data Engineer
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Experience Regular
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Location Poznań, Warszawa
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Working mode Hybrid
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Salary B2B: 800 – 1 500 PLN/day
Salary: 800 – 1500 PLN / MD on B2B
Work model: flexible hybrid from Warsaw / Poznań (1 day form the office per week)
Why choose this offer?
- Impact on the development of the largest e-commerce system in Poland
- You can expect a flexible work organization
- Long-term cooperation within a stable ecosystem
- The Jit community will bring you a nice time during regular integration meetings
Project
We are looking for an experienced Data Engineer to join our team and support the development of scalable data solutions in a modern cloud environment. The ideal candidate has strong analytical and technical skills, experience working with large datasets, and a proactive approach to building and optimizing data processes. You should feel comfortable working independently, taking ownership of delivered solutions, and collaborating with cross-functional teams in a dynamic environment
Responsibilities you’ll have:
- Design, develop, and maintain scalable ETL/ELT data pipelines
- Build and optimize cloud-based data warehouse architectures and data models
- Process and manage large-scale datasets in Big Data environments
- Develop and maintain solutions using GCP services, especially BigQuery and Dataflow
- Optimize performance and cost efficiency of data processing solutions
- Create and maintain data workflows using Python, PySpark, and Airflow
- Collaborate with cross-functional teams to deliver end-to-end data solutions
- Support AI/ML initiatives by preparing and managing data structures for model training and production deployment
- Ensure software engineering best practices, including Clean Code, testing, code reviews, and CI/CD
- Monitor and maintain data platform reliability, scalability, and performance
Expected competences and knowledge:
- Minimum 3 years of commercial experience as a Data Engineer working with large-scale data environments
- Strong expertise in SQL and deep understanding of data modeling and Cloud Data Warehouse architecture
- Hands-on experience with ETL/ELT process design, implementation, and maintenance
- Practical experience with public cloud platforms, especially GCP (BigQuery, Dataflow)
- Strong programming skills in Python for Big Data processing, including PySpark and Airflow
- Knowledge of Scala or Java is a plus
- Experience with software engineering best practices: Clean Code, testing, Code Review, and CI/CD
- Good working knowledge of Unix/Linux environments
- High level of autonomy, ownership, and responsibility for delivered solutions
- Understanding of MLOps concepts and machine learning model lifecycle
- Experience preparing data structures for AI/ML model training and production environments
Technologies you’ll work with
- ETL
- Big Data
- Python
- SQL
- GCP (BigQuery, Dataflow)
- PySpark
- Airflow
- Scala / Java
Client – why choose this particular client from the Jit portfolio?
Our Client dominates the Polish e-commerce arena as the market leader since 1999. With a user base of over 20 million and growing, this well-established platform is at the forefront of e-commerce, constantly striving for growth through market expansion and investment. As a major player in technology, our Client boasts a talented IT team of over 1,000 employees who focus on developing their own cutting-edge technologies.
Jit Team has had a successful partnership with our Client since spring 2021, with multiple software development teams dedicated to our Client’s platforms. These teams operate autonomously, designing platform components through micro-services.
Working with our Client offers a chance to contribute to a solution used by millions on a daily basis and to tackle the challenge of delivering software at a massive scale, where even a single second of delay can have a significant impact. This project provides a unique opportunity to work with state-of-the-art technologies and tools, making it a rare and valuable experience.
About Jit Team
The Human Factor of IT – it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.
Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.
Here’s how we get from first “hello”
to “welcome aboard”
You’ll meet with our HR team to discuss your experience, approach to software development, and teamwork. We’ll also verify your English language proficiency as part of the conversation. Then, you’ll take part in a technical interview focused on your skills and problem-solving mindset.
If both interviews go well, we’ll match you with a project aligned with your skills and expectations. You’ll then meet the client – this is where the final project-related decision is made.
Based on feedback and your preferences, we’ll prepare an offer tailored to your experience. We’ll agree on the project, salary, type of contract, and your start date.
We start with a short phone conversation to get to know each other. We’ll talk about your experience, career goals, and motivation, while giving you a chance to learn more about Jit Team and the role.
Depending on the role, you’ll complete a short recruitment task to showcase your skills. We’ll also verify your English language proficiency as part of this stage.
Next, you’ll meet your future Team Leader at our office. We’ll discuss your experience, ways of working, and how your skills match the role, while giving you a better understanding of the team and day-to-day collaboration.
If we’re a good match, we’ll prepare an offer tailored to your experience. We’ll agree on the salary, type of contract, and your start date. Welcome to Jit Team!
Benefits
We believe a great workplace is more than a set of benefits. It’s about trust, long-term relationships, and an environment where people can do their best work.
Jit Academy
Share and gain experience. Jit Academy is a platform serving a mutual knowledge exchange. Lecture others and share your expertise or join the audience.
Jit Communities
Join the group of experts. We ensure constant growth, that’s why we keep building communities dedicated to mutual education.
Growth support
We value people who are looking to develop their skillset. We proudly finance a variety of courses and certifications so that you can gain new competencies.
Jit Summer Office
Gain access to the office located at the very beach in Chałupy. Jit Trailer awaits visits of the team members and their families.
Jit Boats
Cruise the bay thanks to the motorboat awaiting at the Yacht Park in Gdynia. Furthermore, there is a fleet of jet skis and kites located at the beach in Chałupy.
Recommendations program
Would you recommend any IT specialist we could hire? Share the contact and gain a bonus if we hire them.
Flexible work hours
Start the day without haste.
At Jit, we begin and finish the day of work within a certain time frame, in stead of fixed hours.
Bonuses for content creators
We provide bonuses to those willing to participate in industry events as public speakers, and to content creators writing articles for our blog.
Mental health support
Mental health is fundamental. Take advantage of psychologists and psychotherapists’ support and reach for psychoeducational content on the wellbeing platform
Up-to-date equipment
We provide our teams with high-quality gear necessary to work. Choose between MacOs or Windows and work the way you prefer.
Teambuilding events
Meet new, interesting people. We’re dedicated to building human relations and often host informal events that bound our team members.
English lessons
Classes conducted for small groups, lectured
by our teachers, guarantee rapid results.
Private healthcare
Take care of your wellbeing. Members of Jit Team, gain access to a wide range of medical plans provided by Medicover or PZU.
Gym membership card
We provide Multisport and Medicover Sport gym cards so that you can improve your physical condition.
Life insurance
Increase your safety. No matter the form of employment, we provide life insurance plans to our colleagues.
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