Senior Fullstack Developer (Python + React)

Neotalent Conclusion; Sevilla; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A leading technology services firm in Spain is looking for a Senior Fullstack Developer. The candidate will work remotely and will focus on developing high-quality solutions using Python for backend and React for frontend. Key qualifications include expertise in FastAPI, LLMs, and teamwork capabilities. This is a great opportunity to work on challenging projects with big clients and access continuous training resources.

Servicios

Continuous training and certifications

Career design support

Internal mobility program

Challenging projects

Formación

• Proven expertise in full stack development with Python and React.
• Experience with FastAPI.
• Knowledge of LLMs and RAG concepts.
• Ability to design scalable and maintainable software solutions.
• Strong collaborative skills.
• Fluent in English.

Responsabilidades

• Develop and maintain scalable backend services using Python.
• Build intuitive frontend interfaces using React.
• Collaborate with teams to implement AI-powered applications.
• Contribute to the development of Document understanding products.

Conocimientos

Full stack development with Python

React

FastAPI

Large Language Models (LLMs)

Retrieval-Augmented Generation (RAG)

Team Collaboration

Advanced English

Herramientas

Python

React.js

Node.js

Docker

LangChain

Cloud: Amazon, Azure

Descripción del empleo

Who are we

Neotalent Conclusion is one of the leading Iberian specialists providing services in Information Technology and Engineering services. As part of the Netherlands-based organization Conclusion, which has an ecosystem of over 25 companies and 3,600 employees, we are focused on increasing the technological capacity of our clients and the digital transformation of their application ecosystems.

We are talent specialists, attracting the best people and combining them with the needs of the most ambitious projects, at the right time. Our success comes from our investments in innovation, our focus on results, and, above all, the guarantee that our people will have happy and rewarding careers.

With over 25 years of solid experience, Neotalent Conclusion has established its presence in key locations, including Madrid, Lisbon and Porto. The company currently has more than 950 professionals in the different areas in which it operates.

Neotalent, the responsive people

Find out more about us at www.neotalent.pt / es y https : / / neotalent.pt / es / oportunidades-de-carrera / .

Role Overview

We are looking for a Senior Fullstack Developer with experience in Python and React, to join our team and help us deliver high-quality solutions to our clients. Position available as 100% remote

What you will do

• Develop and maintain scalable backend services using Python, integrating with LLMs, agents, and document processing frameworks.
• Build intuitive and responsive frontend interfaces using React.
• Collaborate with cross-functional teams to design and implement AI-powered applications and solutions.
• Contribute to the development of a Document understanding product and enhance AI asset scalability. Work with emerging AI technologies, including LLMs, agentic architectures, and app integrations.

What you are like

• Proven expertise in full stack development with Python (backend) and React (frontend).
• Proven expertise in FastAPI
• Proven expertise of Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and related AI/ML concepts.
• Design scalable, reliable, and maintainable software solutions.
• Team Collaboration.
• Advanced English level

Technical expertise

• Python
• REACT.js
• Node.js
• Docker
• LangChain
• Cloud: Amazon, Azure
• LLMs
• RAG
• LangChain (nice to have)

Why join us

• Work on challenging projects for big clients
• Learn more about emerging technologies
• Design your career plan
• Access to continuous training and certifications
• Evolve through our internal mobility program
• … and much more!