Barcelona Backend Product Engineer — AI Email Platform

Migma; Barcelona; Híbrido; EUR 70.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive salary

Barcelona office

Cutting-edge AI tech

High impact role

Growth opportunities

Modern office in Barcelona

Descripción de la vacante

Migma seeks exceptional Backend Product Engineers to build infrastructure powering AI-driven email marketing from Barcelona. You will design and scale systems handling millions of emails, real-time content generation, and seamless integrations.

Based in Barcelona, the role is on-site or hybrid. You will work with a small, ambitious team building a category-defining company, with ownership, rapid iteration, and a strong focus on long-term scalability and performance.

Formación

• 5+ years designing and scaling backend systems for production products.
• Fluency in Node.js and Python with strong API design skills.
• Experience with email infrastructure and deliverability.

Responsabilidades

• Design, implement, and maintain backend services, APIs, and email delivery infrastructure.
• Build robust integrations with email service providers (SES, SendGrid, Resend) and handle deliverability challenges.
• Create scalable systems for template management, dynamic content generation, and subscriber management.
• Architect data pipelines for analytics, tracking opens/clicks, and managing unsubscribes.
• Own backend systems end-to-end: architecture, implementation, deployment, monitoring, and optimization.
• Collaborate with frontend, AI, and product teams to translate ambitious ideas into robust, scalable features.
• Implement caching strategies and optimize database queries for sub-second response times.
• Build webhook systems for real-time email events and third-party integrations.
• Shape our backend architecture, API standards, and technical strategy as we scale.

Conocimientos

Node.js

Python

API design

Distributed systems

Caching

Message queues

Backend scaling

OpenAI integration

Herramientas

PostgreSQL

Redis

MongoDB

RabbitMQ

AWS SQS

Redis Pub/Sub

SES

SendGrid

Resend

OpenAI

Anthropic Claude

LangChain

Descripción del empleo

Migma seeks exceptional Backend Product Engineers to build infrastructure powering AI-driven email marketing from Barcelona. You will design and scale systems handling millions of emails, real-time content generation, and seamless integrations.

Based in Barcelona, the role is on-site or hybrid. You will work with a small, ambitious team building a category-defining company, with ownership, rapid iteration, and a strong focus on long-term scalability and performance.