Senior Python/Java Developer (he/she)

294.18 - 347.92 USDNet per day - B2B
Python

Senior Python/Java Developer (he/she)

Python
Gdańsk, Gdańsk +3 Locations

ASTEK Polska

Full-time
B2B
Senior
Hybrid
294.18 - 347.92 USD
Net per day - B2B

Job description

About the Astek Group

Astek Group is a global engineering and IT consulting partner, founded in France in 1988. For over 35 years, Astek has been supporting clients worldwide in the design, development, and maintenance of advanced technological solutions, actively contributing to their digital transformation journeys.

The Group combines deep technological expertise with strong business process understanding, delivering projects across financial services, industrial, energy, telecommunications, and public sectors.

Today, Astek employs over 10,000 specialists globally, with Group revenues reaching €705 million in 2024. Astek’s growth is driven by a culture of innovation, entrepreneurship, and continuous development of employee competencies.

More information: https://astek.net


Role Overview

We are looking for a Senior Data Engineer / Financial Crime Engineer to join a team delivering advanced capital markets AML detection solutions.

The role focuses on the design, implementation, and optimisation of large-scale data pipelines, detection logic, and scoring frameworks supporting end-to-end financial-crime and surveillance use cases. The position combines strong hands-on engineering with close collaboration across data, technology, and business teams.


Project Context

The team works on high-throughput, distributed data platforms supporting complex capital markets surveillance and AML scenarios. Solutions process large volumes of transactional and market data using modern big-data technologies and rule-based detection frameworks.

Work is carried out in an Agile environment, with strong engineering standards, a focus on scalability and performance, and close cooperation with cross-functional stakeholders.


Key Responsibilities

Data Engineering & Pipelines

  • Design, implement, and optimise data pipelines supporting end-to-end capital-markets AML detection scenarios

  • Develop scalable batch and streaming data-processing solutions using distributed compute platforms

  • Ensure data quality, reliability, and operational robustness across pipelines

Detection Logic & Financial Crime Use Cases

  • Implement detection logic, rule frameworks, and scoring components for financial-crime and surveillance use cases

  • Support the development and enhancement of alerting and detection mechanisms

  • Collaborate with domain experts to translate business requirements into technical solutions

Engineering Quality & Operations

  • Maintain high engineering standards across code, pipelines, and operational processes

  • Contribute to CI/CD pipelines, automated testing, and deployment processes

  • Support non-functional requirements including performance, scalability, observability, resiliency, and security


Technical Requirements (Must Have)

  • Strong programming skills in Python and 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 (e.g. Bamboo, Jenkins) and Bitbucket

  • Experience working in Agile teams, with the ability to work independently in fast-paced environments

  • Strong analytical and problem-solving skills with high adaptability


Nice to Have / Additional Assets

  • Understanding of Capital Markets products (FX, Equities, Derivatives, Bonds, etc.)

  • 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 (performance, scalability, observability, data quality, resiliency, security)

  • Experience with automation, including pipeline deployment, data validation, testing frameworks, and workflow orchestration

  • Experience integrating solutions with third-party systems (e.g. case-management platforms)

  • A strong can-do mindset and ability to collaborate effectively in cross-functional teams


What We Offer

  • Long-term cooperation within a stable, high-impact project environment

  • Participation in the development of advanced financial-crime and capital-markets data platforms

  • Real influence on the shape and quality of delivered data-engineering solutions

  • A collaborative, professional, and partnership-driven working culture


Referral Program

Do you know someone who might be interested in this opportunity?Use our Referral Program and earn a bonus of up to 7,000 PLN.Link: https://astek.pl/system-rekomendacji/


AO220758

Tech stack

    English

    B2

    PySpark

    advanced

    Java

    advanced

    SQL

    advanced

    Python

    advanced

    Jenkins

    regular

    Bamboo

    regular

    Bitbucket

    junior

Office location

Published: 10.02.2026

Senior Python/Java Developer (he/she)

294.18 - 347.92 USDNet per day - B2B
Summary of the offer

Senior Python/Java Developer (he/she)

Gdańsk, Gdańsk
ASTEK Polska
294.18 - 347.92 USDNet per day - B2B
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