Python/Scala Developer for Transaction Monitoring
Company: OPTIVEUM sp. z o.o.
Role summary
Python/Scala Developer for Transaction Monitoring is a full-time role at OPTIVEUM sp. z o.o. in Łódź, Łódź Voivodeship, Poland (hybrid). Posted 2026-10-15. Salary: PLN 190 per hour. Experience level: 5-10.
- Job title
- Python/Scala Developer for Transaction Monitoring
- Company
- OPTIVEUM sp. z o.o.
- Location
- Łódź, Łódź Voivodeship, Poland
- Work arrangement
- hybrid
- Employment type
- full-time
- Category
- Software Engineering
- Salary
- PLN 190 per hour
- Experience level
- 5-10
- Date posted
- 2026-10-15
If you're a Python or Scala developer looking for a great hourly rate and the chance to build something new, this role is for you! You'll be working on an exciting greenfield project for a major banking client, developing critical transaction monitoring systems.
Job description
Python/Scala Developer for Transaction Monitoring
About the Offer
We are currently looking for a Python/Scala Developer for Transaction Monitoring to join the team of our client from the banking sector. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us.
You will build data pipelines and detection logic for capital-markets anti-money laundering (AML) scenarios, contributing to a greenfield architecture with real ownership over what you deliver.
Key Details:
Rate: up to 190 PLN/h net + VAT
Work Model: B2B contract, full-time (40 h/week), hybrid – 3 days per week in the office
Location: Gdańsk, Gdynia, Warsaw or Łódź
Languages: Fluent Polish and English
Responsibilities:
Design, implement and optimise data pipelines supporting end-to-end capital-markets AML detection scenarios
Implement detection logic, rule frameworks and scoring components for financial-crime use cases
Ensure high-quality engineering across code, data pipelines and operational processes
Contribute to a greenfield architecture with a strong sense of ownership, innovation and delivery excellence
Requirements:
Strong programming skills in Python and Scala or Java
Advanced experience with Apache Spark (PySpark) and SQL for large-scale distributed data processing
Hands-on experience with distributed compute platforms and on-premise cluster environments
Proficiency with CI/CD tools such as Bamboo or Jenkins, and Bitbucket
Experience working in Agile teams, with the ability to work independently in a fast-paced, evolving environment
Strong analytical and problem-solving skills
Fluent Polish and English
Nice to have:
Experience with Quantexa or transaction monitoring platforms
Understanding of capital markets products such as FX, equities, derivatives and bonds
Previous experience in financial crime, AML or surveillance use cases
Experience implementing rule-based detection systems, scorecards or alerting frameworks
Experience delivering against non-functional requirements such as performance, scalability, observability, data quality, resiliency and security
Experience with automation, including automated pipeline deployment, data validation, testing frameworks and workflow orchestration
Experience integrating solutions with third-party systems, such as case management systems
A strong can-do attitude and the ability to collaborate in a cross-functional team
Apply for Python/Scala Developer for Transaction Monitoring at OPTIVEUM sp. z o.o.