Actual Talentis the talent acquisition consultancy that offers Executive Search, RPO and Talent Solutions.
About the client:AGerman Sustainable Tech Unicornthat is redefining how global corporations handle transparency. Backed by a€130M Series Cinvestment, our client has built a proprietary, serverless cloud infrastructure to ensure human rights and ecological responsibility across general 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 ScaleAs a Senior Full-Stack Engineer you will be an architect of transparency. You will own the end-to-end development of products that help over 2,000 global 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
eExperience:6+ years of professional experience in Full-Stack development, specifically withinproduct-based companies(no agencies or consultancies).
Backend Mastery:Expert-level command ofNode.
JsandTypeScript .
Frontend Proficiency:Strong experience withReact.
Js .
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?Unlimited Growth:Join a unicorn at the peak of its global expansion with a direct line to leadership.
Good Salary PackageHybrid Work:A balanced model of3 days in the Madrid office / 2 days remotePremium

Benefits:
€80/month via Thanksben + up to €200/month for transport and meals.
High-Performance Culture:A world-class engineering team where technical decisions are made by developers, for developers.

📌 Senior Full-Stack Engineer (Madrid)
🏢 Actual Talent
📍 Madrid