Senior Data Engineer - Jit Team

Salary: 1100 – 1550 PLN/MD on B2B

Work model: elastic hybrid from Warsaw / Kraków / Gdańsk

Why choose this offer?

• Work on modern cloud security architecture for large-scale financial data platforms in the capital markets domain
• Opportunity to shape security-by-design practices in a highly regulated, data-driven environment
• Join an international organization processing high volumes of transactional data, supporting advanced analytics and trading platforms
• The Jit community will bring you a nice time during regular integration meetings
• Enjoy work-life balance in a company that values flexibility and innovation

Project

We are looking for a Senior Data Engineer to own and stabilise a Snowflake-based data platform. You will develop and maintain data pipelines using AWS, Snowflake, dbt, SQL and Python, ensuring data quality, security and reliability while supporting business and regulatory reporting.

Expected competences and knowledge

• 8+ years of hands-on data engineering experience
• Strong production experience with Snowflake and dbt
• Advanced SQL and Python skills
• Experience with AWS (S3, Lambda/ECS, IAM, data replication)
• Strong data modelling and ETL/ELT pipeline development skills
• Experience with Power BI, DAX and semantic models
• Knowledge of data governance, data quality monitoring and PII security
• Experience in financial services, trading or fintech
• Fluent, professional English (written and spoken)

Responsibilities you’ll have

• Own and maintain the data platform end to end.
• Develop and optimise ETL/ELT pipelines using AWS, Snowflake, dbt, SQL and Python.
• Implement data models and support Power BI reporting.
• Monitor data quality, pipeline performance and platform costs.
• Ensure data security, governance and PII protection.
• Collaborate with Finance, Risk and other business teams on data requirements.

Technologies you’ll work with

• Snowflake
• dbt
• SQL
• Python
• AWS S3
• AWS ECS/Fargate
• AWS Lambda
• AWS IAM
• Power BI
• DAX
• ETL/ELT
• CI/CD
• Data Modelling
• Data Governance

Client – why choose this particular client from the Jit portfolio?

Our client is an international financial services organization operating in the capital markets domain, focused on processing and analyzing large volumes of transactional data. The company develops modern data platforms that support trading, operational efficiency, and regulatory reporting. It operates in a fast-paced, highly regulated environment with a strong emphasis on scalability, data quality, and advanced analytics.

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!

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.

Haven’t found a suitable job description, but you
still wanna be a part of The Team?

Let’s talk – your next role might not be listed yet.

• Send your CV