Backend & AI Developer (Junior / Entry-Level)

Migma.ai; Madrid; Híbrido; EUR 30.000 - 45.000; Jornada completa

Descripción de la vacante

A revolutionary AI startup in Madrid is seeking a Junior Backend & AI Developer. In this role, you will collaborate with experienced team members to design back-end services and integrate machine learning models for personalized email content. Ideal candidates have 1-3 years of backend development experience, are proficient in Python and Node.js, and are passionate about AI-driven solutions. This position offers competitive compensation, flexible hours, and mentorship opportunities.

Servicios

Mentorship opportunities

Flexible hours

Competitive compensation

Formación

• 1–3 years of backend development experience (Node.js, Python or similar).
• Strong Python skills and experience with ML / LLMs.
• Interest in NLP, computer vision or generative AI.

Responsabilidades

• Design, build and maintain backend services (Node.js / Python).
• Integrate user-facing features with server-side logic.
• Train and fine-tune AI models for email generation.

Conocimientos

Backend development

Node.js

Python

Machine Learning

Interest in NLP

Herramientas

Next.js

TypeScript

Descripción del empleo

Backend & AI Developer (Junior / Entry-Level)

About Migma.ai

Migma.ai is on a mission to revolutionise email creation. Our AI-driven platform automatically imports brand guidelines and generates on-brand emails in seconds. We’re a Stockholm / Barcelona startup backed by EWOR and founded by the Lababidi brothers (PaidTabs alumni).

Role Overview

We’re looking for a junior Backend & AI Developer to help build and scale our core platform. You’ll work with our CEO (AI / Backend specialist) and CTO (Frontend / Design lead) to develop APIs and integrate machine learning models that generate personalised email content.

Responsibilities

Design, build and maintain backend services (Node.js / Python)

Integrate user-facing features with server-side logic

Implement security, data protection and scalability

Train and fine-tune AI models for email generation

Collaborate with designers and researchers to ship new features

Requirements

1–3 years of backend development experience (Node.js, Python or similar)

Familiarity with Next.js and TypeScript

Strong Python skills and experience with ML / LLMs

Interest in NLP, computer vision or generative AI

Passion for user-centric product design

Benefits

Work from our Barcelona hub (Cloudworks Sagrada Família) or remotely

Join a small, experienced team with mentorship opportunities

Competitive compensation and flexible hours

How to apply

Send your CV / portfolio and a brief intro to Explain why you’re excited about AI-powered email solutions.

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