We're seeking exceptional Backend Product Engineers to build the infrastructure powering the future of AI-driven email marketing. You'll design and scale systems that handle millions of emails, real-time content generation, and seamless integrations. Full-time position based in Barcelona with competitive compensation.
Using AI that understands your brand and content sources, anyone can generate compelling, responsive emails without designers, developers, or marketing expertise. We're democratizing professional email marketing for millions of businesses worldwide. Thousands of companies and agencies are already using Migma.We're a small, talent-dense team building a category-defining company from Barcelona. Design, implement, and maintain backend services, APIs, and email delivery infrastructure
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
Shape our backend architecture, API standards, and technical strategy as we scale
Based in Barcelona (on-site/hybrid working model)
~5+ years of experience designing, building & scaling backend systems for production products
~ Fluency in Node.js, Python, with strong API design skills
~ Proven experience integrating with AI/ML systems and third-party APIs (CRMs, e-commerce platforms, analytics)
~ Strong understanding of database design (PostgreSQL, Redis, MongoDB) and query optimization
~ Experience with event-driven architectures and real-time data processing
~ Fluent English communication skills (written and spoken) - essential for team collaboration
~ Portfolio or GitHub profile with produ

📌 Backend Product Engineer (España)
🏢 Migma
📍 España