Data Analyst & Python engineer

Live Data Solutions; Barcelona; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A technology company in Barcelona is seeking a versatile Python Developer to design, develop, and maintain robust backend systems while performing complex data analysis. The ideal candidate has strong skills in Python, Django, and SQL, and is passionate about contributing to high-impact product development.

Servicios

Meal vouchers

Health insurance

Career growth potential

Formación

• Solid understanding of software engineering principles.
• Experience in data cleaning, transformation, and visualization.
• Ability to write optimized SQL queries.

Responsabilidades

• Perform complex data analysis and visualization.
• Develop and maintain data import/export modules.
• Design and maintain backend applications using Python.

Conocimientos

Advanced Python

Data analysis with Pandas

SQL proficiency

Django experience

API development

Docker

Unit testing

CI/CD practices

Herramientas

PostgreSQL

Redis

RabbitMQ

Unix/Linux

Descripción del empleo

Overview

Live Data Solutions is a technology company that develops and markets SaaS software in the fields of email marketing and customer relationship management. We are primarily expanding in France and Spain, operating from our offices in Barcelona.

Our team offers clients a comprehensive service built around three areas of expertise :

• Technology
• Consulting
• Agency Services

Through our client portfolio, we address a variety of sectors, industries, and challenges. We work with e-commerce sites, service providers, content publishers, and intermediaries. Our expert team in email marketing delivers the best solutions for loyalty, acquisition, and contact reactivation strategies.

Job Summary

We are looking for a versatile and highly skilled Python Developer to join our innovative team. You will be a key player in the design, development, and maintenance of our platforms, with a strong focus on both advanced data analysis and the construction of robust backend systems and efficient APIs. The ideal candidate is passionate about technology, with a solid understanding of software engineering principles, and eager to actively contribute throughout the entire lifecycle of high-impact product development.

Responsibilities

• Perform complex data analysis, including the integration, cleaning, transformation, processing, and visualization of large volumes of information using Pandas, Numpy, and SQL.
• Develop and maintain modules for importing and exporting data from various sources (CSV files, SFTP, APIs).
• Write complex and optimized SQL queries for data extraction and manipulation.
• Design, develop, test, deploy, and maintain backend applications using Python, with a strong focus on the Django framework.
• Integrate the platform with external and internal APIs for project management, contacts, and data quality.
• Develop and maintain command-line interface (CLI) tools for platform management and operation.
• Ensure code quality by writing unit tests and participating in code reviews.
• Collaborate in troubleshooting and optimizing platform performance.
• Document developed components and implemented processes.
• Identify bottlenecks and bugs, and propose solutions to mitigate and resolve these issues.

Key Project Technologies and Tools

Python and Software Fundamentals :

• Advanced level of Python and its ecosystem.
• Solid experience in software design.

Data Analysis and Manipulation :

• Advanced level in Pandas and Numpy for data analysis, cleaning, and transformation.
• Proficiency in SQL for complex queries, optimization, and data manipulation in relational databases.

Backend Development and APIs :

• Proven experience developing with Django and / or Django REST Framework.
• Proven experience developing high-performance APIs with FastAPI.
• In-depth knowledge of designing, developing, and consuming RESTful APIs, including authentication (OAuth, JWT, etc.) and token management.
• Experience with Flask.
• Experience with Celery is a plus.

Databases :

• Advanced experience with PostgreSQL : schema design, complex SQL queries, performance optimization, indexes, transactions.
• Practical experience with Redis.

Other Required Skills :

• Docker
• Unit testing
• CI / CD
• RabbitMQ
• Unix / Linux

Our Offer

• Permanent contract
• Start date : As soon as possible
• Salary : Based on experience
• Benefits : Meal vouchers + health insurance
• Join a young and multicultural company full of opportunities
• Real career growth potential.
• Great office in Barcelona center.