Transaction Monitoring Developer

Salary: 1100 - 1450 PLN/day on B2B

Work model: flexible hybrid from Gdynia / Gdańsk / Warszawa / Łódź

Why choose this offer?

• You can expect a flexible work organization
• The international work environment will give you the opportunity to interact with the English language on a daily basis
• Scandinavian 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

Project

You will be involved in a financial project focused on building a next-generation AML (Anti-Money Laundering) detection platformfor capital markets. The project aims to develop scalable data pipelines, rule-based detection frameworks, and scoring componentsthat identify suspicious trading activities across asset classes such as Equities, Derivatives, Bonds, and FX. You will contribute to the design and implementation of high-performance distributed data processing solutions while ensuring data quality, scalability, reliability, and operational excellence. Working within an Agile environment, you will help shape a greenfield architecture and deliver innovative solutions supporting financial crime prevention and regulatory compliance.

Responsibilities you'll have

• Design, develop, and optimize AML detection data pipelines for large-scale capital markets environments.
• Implement and enhance detection rules, scoring models, and alerting frameworks supporting financial crime prevention initiatives.
• Process and analyze high-volume datasets using Python, Java, PySpark, and SQL.
• Collaborate with cross-functional teams to deliver scalable and reliable distributed data processing solutions.
• Contribute to the development of a greenfield AML platform, driving architecture, engineering standards, and best practices.
• Ensure high levels of performance, scalability, data quality, observability, and resilience across the solution landscape.
• Develop and maintain CI/CD pipelines and support automation of deployment, testing, and validation processes.
• Integrate AML solutions with third-party systems, including case management platforms and other enterprise applications.
• Participate in Agile ceremonies, technical discussions, code reviews, and continuous improvement initiatives.
• Support the delivery of innovative solutions that strengthen regulatory compliance and financial crime detection capabilities.

Expected competences and knowledge

• Strong programming skills in Python and Java.
• Hands-on experience with Apache Spark (PySpark) and SQL for large-scale data processing.
• Experience working with distributed computing platforms and on-premise environments.
• Knowledge of CI/CD practices and tools such as Jenkins, Bamboo, and Bitbucket.
• Understanding of Capital Markets products, including FX, Equities, Derivatives, and Bonds.
• Experience in AML, Financial Crime, Surveillance, or rule-based detection systems will be an advantage.
• Familiarity with automation, testing frameworks, and integration with third-party systems.
• Strong analytical mindset, problem-solving skills, and ability to work effectively in an Agile environment.

Technologies you'll work with

• Python
• Java
• Apache Spark (PySpark)
• SQL
• Jenkins
• Bamboo
• Bitbucket
• Distributed Computing Platforms
• On-Premise Cluster Environments
• CI/CD Pipelines
• AML Detection & Rule Engines
• Automation & Testing Frameworks
• Third-Party Integrations
• Capital Markets Data Platforms (FX, Equities, Derivatives, Bonds)

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 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.