Location: Compruebe a continuación si tiene lo necesario para esta oportunidad y, si es así, envíe su solicitud lo antes posible.

Madrid (Central) |
Full-time

100% On-site | Versátil hours

Salary:

1. 90k

About the role

We are partnering with a leading European financial services company building a new innovation hub in Madrid. They are looking for a

Senior Full-Stack Engineer
with strong .NET expertise, a passion for AI, and proven leadership in technical delivery.
You will help shape the next generation of AI-driven advisory tools, supporting financial advisors with intelligent assistants that automate complex tasks and improve decision-making.
What you'll do
Architect and develop scalable web applications using
C# and modern .NET frameworks
Build AI-driven features using
LLMs and AI agents
Lead technical decisions and contribute to product direction
Apply advanced
prompt engineering
to optimise AI behaviour
Collaborate with product teams to translate business needs into technical solutions
Mentor and support other engineers, driving best practices and quality standards
What we're looking for




~5 years of professional software development experience
Bachelor's or Master's in Computer Science
Expert in
C# and .NET
Experience with
AI tools
(Git Hub Copilot, LLMs, AI agents)
Strong understanding of AI concepts (RAG, prompt engineering, agents)
Fluent English (written and spoken)Strong problem-solving skills and ability to handle complex logic
Proven experience leading technical projects or mentoring teams
Nice to have
Experience in fintech or financial services
What's on offer
Highly competitive salary and benefits package
Stability and growth within a leading European company
Continuous training in AI and cutting-edge technologies
Modern offices in central Madrid with flexible working hours

About E-Frontiers

E-Frontiers is a specialist technology recruitment company connecting top tech talent with innovative product companies across Europe. We focus on long-term matches, transparency, and an excellent candidate experience. xhfqzwm

If this sounds interesting, apply directly or reach out for a confidential chat.

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📌 Lead Full-Stack Software Engineer (React + .Net) - €80-90k - €80.000 - €90.000 A Year (Madrid)
🏢 E-Frontiers
📍 Madrid