Full Stack Engineer

Shakers; Valladolid; Híbrido; EUR 65.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model

Ownership over core platform

Descripción de la vacante

Shakers busca un Senior Full Stack Software Developer para una plataforma FinTech. Rol práctico con ownership real de componentes centrales, trabajando dos días a la semana desde la oficina de Madrid en Retiro.

Trabajarás en portales para clientes, servicios backend y APIs REST, definiendo decisiones de arquitectura, seguridad y rendimiento. Colaborarás con producto, datos y negocio, revisando código y ayudando a crecer a desarrolladores junior, usando IA para acelerar la entrega.

Formación

• 5+ años de experiencia profesional en desarrollo de software.
• Experiencia práctica en front-end (React o Angular) y back-end (Java, Python, Node.js o Go).
• Experiencia con sistemas de alto volumen o transaccionales.
• Habilidad para resolver problemas.
• Fluidez en inglés.
• Disponibilidad para un modelo híbrido en Madrid (Retiro), 2 días/semana presencial.

Responsabilidades

• Diseñar y construir módulos centrales de una plataforma financiera.
• Desarrollar experiencias de portal para el cliente en el front-end.
• Construir y escalar servicios back-end y APIs REST.
• Contribuir a decisiones de arquitectura y dirección técnica.
• Mantener estándares de seguridad, rendimiento y fiabilidad.
• Colaborar con equipos de producto, datos y negocio.
• Revisar código y apoyar el crecimiento de desarrolladores junior.
• Utilizar herramientas de IA para acelerar el desarrollo sin perder calidad.

Conocimientos

Front-end development

Back-end development

Mentoring / code review

Herramientas

React

Angular

Java

Python

Node.js

Go

Docker

Kubernetes

Descripción del empleo

Descripción del trabajo

Senior Full Stack Software Developer - FinTech Platform

At Shakers, we're partnering with a company building a next-generation financial services platform to bring on a Senior Full Stack Software Developer. It's a hands-on role with real ownership over core systems, working two days a week from a Madrid office in Retiro.

The challenge

The team is building out the core of a financial platform from the ground up: customer-facing portals, backend services, and the APIs that tie everything together. There's real ownership here, working closely with product, data and business stakeholders on architecture, security and performance decisions, while also reviewing code and mentoring less senior developers. Delivery speed matters, and the team leans on AI-assisted tooling (Copilot, Cursor, Claude Code) to move fast without cutting corners on quality.

Responsibilities

• Design and build core modules of a financial services platform
• Develop customer-facing portal experiences on the front end
• Build and scale backend services and REST APIs
• Contribute to architecture decisions and technical direction
• Uphold security, performance and reliability standards across the stack
• Partner with product, data and business teams on delivery
• Review code and support the growth of junior developers
• Use AI-assisted tools to accelerate development without compromising quality

Requirements

• 5+ years of professional software development experience
• Strong hands-on experience across front-end (React or Angular) and back-end (Java, Python, Node.js or Go)
• Experience with high-volume or transactional systems
• Strong problem-solving skills
• Fluent English
• Availability for a hybrid model in Madrid (Retiro), 2 days/week onsite

Nice to have

• Experience in FinTech, financial software or payment systems
• Experience mentoring developers or leading technical projects
• Familiarity with Docker, Kubernetes or DevOps practices

Why this project

• Long-term engagement, not a short sprint
• Real ownership over core platform components, not a peripheral workstream
• Direct collaboration with the internal product, data and business teams

Sounds like you, or like someone in your network? Reach out or share it along; happy to walk through the details

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