Senior Python Developer - Remote - Luxembourg - European Candidate

All European Careers; Madrid; Híbrido; EUR 70.000 - 90.000; Jornada completa

Descripción de la vacante

A leading European recruitment firm is seeking a remote Senior Python Developer to join a dynamic organization. The role requires a minimum of 7 years of Python development experience, strong SQL skills, and proficiency in object-oriented programming. Candidates should be fluent in English and willing to work on-site 1-2 days as needed. You will work closely with experts to gather requirements, review and refactor code, and develop new applications. This is a great opportunity for experienced developers looking to advance their careers.

Formación

• 7 years of Python development with SQL experience.
• Strong proficiency in object‑oriented programming.
• Experience with automated testing frameworks (e.g., unittest, pytest).

Responsabilidades

• Gather technical, business, and security requirements.
• Review and refactor existing code.
• Develop new application code and components.

Conocimientos

Python development

SQL experience

Object-oriented programming

Automated testing frameworks

Fluent English

Git version control

Educación

Bachelor or Master degree

Herramientas

Flask

NumPy

Pandas

Descripción del empleo

For an organization in Luxembourg, we are urgently looking for a remote Senior Python Developer

EU candidates are welcome to apply. Candidates need to be based in Europe. Candidates need to be willing to work 1-2 days on-site when required.

Work permit is not provided. Candidates need to be fluent in English.

Tasks and responsibilities

• Work with subject matter experts to gather technical, business, and security requirements;
• Analyse existing processes, applications, and new needs to design appropriate application solutions;
• Review and refactor existing code to improve maintainability, performance, readability, and alignment with best practices;
• Develop new application code, templates, and components that integrate seamlessly with existing systems;
• Design and support database schemas in Microsoft SQL Server, including data‑loading scripts and integration within the institution’s IT infrastructure;
• Write automated unit tests to meet required quality standards and participate in system, integration, and user acceptance testing;
• Prepare clear technical documentation for all developments, ensuring maintainability and knowledge transfer;
• Create training materials and deliver training sessions to support users in coding, database development, and system integration;
• Produce requirements and design documents, source code with automated tests, test results, and end‑user / operator documentation according to approved formats;

Profile

• Bachelor or Master degree;
• 7 years of Python development with SQL experience;
• Strong proficiency in object‑oriented programming and software design patterns;
• Experience with automated testing frameworks (e.g., unittest, pytest, behave);
• Proficiency with Python libraries such as Flask, NumPy, and Pandas;
• Strong knowledge of XML, JSON, and YAML;
• Proficient in Git version control;
• Experience with both Windows and Unix / Linux environments;
• Practical experience with development methodologies such as Waterfall, Scrum, or DevOps;
• Fluent in English;

Desired

• Experience in the financial sector, particularly capital markets;
• Knowledge of CI / CD pipelines (e.g., Azure Pipelines);
• Scripting experience (shell, PowerShell, batch);
• Experience with Java, R, MATLAB, or Julia;
• Knowledge of additional Python libraries (e.g., PyTorch, Plotly, Dash);
• Experience with reporting tools (e.g., Power BI);
• Familiarity with Big Data technologies (e.g., Spark, Azure CosmosDB);