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Urgent! Fullstack Developer Job Opening In Barcelona – Now Hiring MTi - Mingothings international

Fullstack Developer



Job description

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We are a leading technological solutions integrator with a global presence through an extensive international network.

We are on the lookout for talented professionals to help us build and scale impactful, high-quality projects.

We are currently looking for a Fullstack Developer to join our team, focusing on the implementation of both the presentation layer and the business logic that will support various Artificial Intelligence use cases.

This is a key role to ensure the performance, scalability, and usability of our platforms.

Position Overview

As a Fullstack Developer, you will be responsible for defining and developing both frontend and backend architectures, designing scalable APIs, and creating modern user interfaces.

You will collaborate closely with Data/AI and DevOps teams to ensure seamless integration of business logic, pipelines, and external systems.

Key Responsibilities

  • Define and develop the frontend and backend architecture of the platform.

  • Design and implement scalable and secure APIs for integration with AI modules, ETL processes, and external systems (ERP/CRM).

  • Develop modern and efficient web interfaces focused on usability and user experience.

  • Make technology stack decisions and enforce best practices to ensure performance and scalability.

  • Collaborate with Data/AI and DevOps teams to integrate business logic and analytical pipelines.

Technical Skills Required

  • 2–5 years of experience in full stack software development.

  • Strong backend development experience (Java, Node.js or Python; frameworks such as Spring Boot, Express, or FastAPI).

  • Knowledge of API design and integration.

  • Experience with SQL and NoSQL databases (PostgreSQL, MongoDB, Redis).

  • Proficiency with Git and collaborative environments.

  • Experience deploying applications in containers (Docker).

Nice-to-haves

  • Experience with data processing projects or ERP/CRM integrations.

  • Knowledge of authentication/authorization (OAuth2, JWT, identity systems).

  • Understanding of scalable architectures and design patterns.

  • Experience generating dynamic reports (PDF, Excel).

  • Familiarity with Agile/Scrum methodologies.

This position is for you if you…

  • Are passionate about full stack development and emerging technologies.

  • Enjoy working on both frontend and backend challenges.

  • Communicate clearly and collaborate effectively across teams.

  • Are proactive, detail-oriented, and eager to learn.

  • Feel comfortable working in dynamic, fast-paced environments.

  • Are fluent in Spanish and English.

What we offer

  • A young, talented team and a growth-oriented environment.

  • English classes for continuous development.

Seniority level

  • Mid-Senior level

Employment type

  • Full-time

Job function

  • Engineering and Information Technology

Industries

  • IT Services and IT Consulting

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