Actual Talent is the talent acquisition consultancy that offers Executive Search, RPO and Talent Solutions.
About the client:
A German Sustainable Tech Unicorn that is redefining how global corporations handle transparency. Backed by a €130M Series C investment, our client has built a proprietary, serverless cloud infrastructure to ensure human rights and ecological responsibility across global supply chains.
Currently in a massive consolidation phase, their Madrid Hub is expanding from 20 to over 100 top-tier engineers in 2026. This is your chance to join a high-growth environment where engineering quality and product ownership are the top priorities.
The Mission: Impact at Scale
As a Senior Backend Enginner you will be an architect of transparency. You will own the end-to-end development of products that help over 2,000 integral companies comply with critical ESG regulations (LkSG, CSDDD).
Key Responsibilities:

System Architecture: Design and optimize scalable full-stack features, focusing on robust backend systems and high-performance frontend interfaces.




Infrastructure Innovation: Work directly on a custom-built, serverless cloud ecosystem (the Hub).
Technical Leadership: Influence the design of core libraries and microservices architecture used worldwide.
Collaborative Strategy: Work in high-density agile squads (4-6 people) alongside tech leads to define the product roadmap.
Quality Advocacy: Drive technical excellence through rigorous code reviews, automated testing, and CI/CD best practices.

Your Profile:e

Experience: 6+ years of professional experience in Backend development, specifically within product-based companies (no agencies or consultancies).
Backend Mastery: Expert-level command of Node.js and TypeScript.
Architecture Mindset: Deep understanding of microservices, end-to-end product ownership, and scalable design patterns.
Communication: Fluent English (C1). Spanish is a plus but not mandatory for technical collaboration.

What’s in it for you?

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📌 Senior Backend Engineer (Madrid)
🏢 Actual Talent
📍 Madrid