Expert IT Developer Data Platform Engineer

Salary: 135 - 165 PLN/hour on B2BWork model: elastic hybrid from Gdynia / Gdańsk / Warszawa (at least 2-3 days per week from the office) Why choose this offer?You can expect a flexible work organizationThe international work environment will give you the opportunity to interact with the English language on a daily basisScandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)The Jit community will bring you a nice time during regular integration meetings ProjectIn this role, you will be part of a team responsible for developing and maintaining a highly available data delivery application supporting multiple downstream systems. You will work closely with cross-functional stakeholders to design scalable data solutions, ensure high-performance data flows, and implement modern integration and DevOps practices. The role requires strong technical expertise, analytical thinking, and autonomy in driving data engineering initiatives from design to production. The candidate should have a strong development background combined with expertise in Oracle DB, SQL/stored procedures, ETL processes, modern integration patterns and DevOps practices. Responsibilities you'll haveDesigning, building, and maintaining scalable ELT pipelinesDeveloping and optimizing PL/SQL queries and Oracle database objects for high-performance data storageWriting Python-based data engineering scripts for data processing and transformationImplementing CI/CD pipelines supporting data infrastructure and workflow automationManaging database changes and ensuring robust version control practicesWorking with one or more major cloud vendors to deliver secure and scalable solutionsMonitoring, debugging, and optimizing data workflows and overall infrastructure performanceEnsuring data quality, governance, and compliance with best practices Expected competences and knowledgeStrong Python and PL/SQL skills Hands-on experience with ETL toolsProficiency in designing OLAP systems, including STAR schema modelling and denormalization techniquesUnderstanding of batch and streaming processing, including hands-on experience with KafkaKnowledge of database management across Oracle, MS SQL, and SnowflakePractical understanding of DevOps principles and CI/CD practices (Git, Docker, Kubernetes, Terraform; tools like Jenkins, Bamboo, Azure DevOps)Experience with test automation frameworks (e.g., Robot, Selenium) and understanding of different testing scenariosSolid knowledge of version control (Git, GitHub, GitLab)Experience with workflow orchestration tools such as Airflow or PrefectStrong command of English (written and spoken) Technologies you'll work withPL/SQL, PythonOracle, MS SQL, Snowflake KafkaELT/ETL toolsGit, GitHub, GitLabDocker, Kubernetes, TerraformCI/CDRobot Framework, Selenium Client – why choose this particular client from the Jit portfolio?Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work-life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit TeamThe 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 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme.Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.