Senior python developer (m/f)

ARHS Group, part of Accenture, is looking for a Senior Python Developer (m/f) to join one of our client teams onsite in Luxembourg within a European institutional environment.
In this role, you will contribute to the development, maintenance, and evolution of business-critical applications, while helping establish robust engineering practices around testing, quality, and software design. You will work closely with both technical and business stakeholders to deliver reliable and scalable solutions.
THE WORK:
Support and maintain Python-based applications and tools running in production environments.
Participate in the development of new functionalities and the continuous improvement of existing solutions.
Contribute to the design and evolution of core frameworks supporting business and financial calculations.
Collaborate closely with business stakeholders to translate requirements into robust software solutions.
Support citizen developers by promoting development best practices, quality standards, and testing approaches.
Extend and maintain automated integration and testing frameworks.
Ensure high code quality through test automation, code reviews, and quality controls.
Contribute to CI/CD and DevOps practices to improve software delivery and reliability.
Onsite at client site : This role requires an onsite presence with our clients and partners to support project delivery and strengthen client relationships.
Our roles require in-person time to encourage collaboration, learning, and relationship-building with clients, colleagues, and communities. As an employer, we will be as flexible as possible to support your specific work/life needs.
HERE’S WHAT YOU’LL NEED:
Master’s degree in Computer Science or a related field.
Minimum 7 years of experience in Python development .
Minimum 7 years of experience in test automation and software quality practices .
Proven experience working closely with business stakeholders to deliver software solutions that meet both functional and technical requirements.
Strong experience with: Python
Django and Django ORM
REST APIs
SQLAlchemy
Pandas
SQL

Solid understanding of: Test automation frameworks
BDD (Behavior-Driven Development)
CI/CD practices
DevOps principles

Strong analytical and problem-solving skills.
Ability to work autonomously while collaborating effectively with cross-functional teams.
Fluency in English (written and spoken).
BONUS POINTS IF YOU HAVE:
Experience in the financial sector or with financial calculations and reporting systems.
Experience mentoring developers and promoting engineering best practices.
Knowledge of cloud-based architectures and modern software delivery practices.
As part of our security and compliance procedures, candidates will be required to undergo a criminal background check prior to employment.