Senior Backend developer .NET (H/M/X)

Experis España; Madrid; Híbrido; EUR 70.000 - 110.000; Jornada completa

Descripción de la vacante

Experis España, parte de ManpowerGroup, busca un Senior Backend Engineer para nuestro Technology Hub en Madrid. Desarrollarás soluciones .NET escalables y seguras para clientes B2B, con foco en rendimiento y calidad, en un entorno híbrido (remoto y presencial).

Buscamos experiencia sólida en .NET, C# y ASP.NET Core, con fundamentos en microservicios, APIs y bases de datos SQL/NoSQL. Colaborarás estrechamente con equipos globales para entregar valor de negocio.

Formación

• 8+ años de experiencia en desarrollo .NET con C# y ASP.NET Core.
• Conocimiento de diseño orientado a objetos, microservicios y API (REST/GraphQL).
• Experiencia con bases de datos SQL y NoSQL (SQL Server, PostgreSQL, Cosmos DB, MongoDB).
• Entendimiento avanzado de arquitecturas nativas en la nube, pipelines CI/CD y prácticas DevOps (preferible GCP).
• Experiencia en contenedorización (Docker, Kubernetes).
• Metodologías ágiles (Scrum/Kanban) y revisión de código.
• Inglés y español fluidos.

Responsabilidades

• Desarrollar y mantener software B2B escalable y de alto rendimiento.
• Contribuir en discusiones de arquitectura y revisión de código.
• Definir y adherirse a estándares de codificación, pruebas y CI/CD.
• Trabajar con Product, Engineering, DevOps y QA para convertir requisitos en especificaciones.
• Liderar, orientar y mentorizar a ingenieros más jóvenes.

Conocimientos

NET

C#

ASP.NET Core

Microservices

REST/GraphQL

SQL/NoSQL

Cloud-native

Docker

Kubernetes

Agile

Educación

Bachelor’s degree in Computer Science or related field

Herramientas

Docker

Kubernetes

Jira

GitHub

Azure DevOps

CI/CD

Descripción del empleo

En Experis, compañía de ManpowerGroup, trabajamos seleccionando el mejor Talento tecnológico para conectarlo con todo tipo de organizaciones, desde grandes corporaciones hasta start ups.

Somos una compañía especializada en consultoría IT y en selección de profesionales del sector Tecnológico asociados a nuestras 3 prácticas: Business Transformation, Cloud & Infrastructure y Enterprise Applications.

Contamos con una plantilla de más de 1.800 profesionales especializados en IT en España y presencia internacional en 54 países.

Si eres un profesional del área de la Tecnología, nos gustaría ayudarte a encontrar esa nueva oportunidad que estás buscando, la que te impulse a dar el salto en tu carrera profesional.

Encuentra tu próxima oportunidad con nosotros. Pasa al siguiente nivel con Experis.

Job description

Reporting into Director of Software Engineering, the Senior Backend Engineer will work within the Global Technology Hub from our Madrid office.

We are seeking an experienced and passionate Senior Backend Engineer for our newly established Technology Hub in Madrid. This is a unique opportunity to become part of the founding team that helps shape the culture, practices, and technical direction. Working in a hybrid model (remote & onsite), you will enjoy significant freedom to innovate and influence the future of one of the world’s largest commercial real estate companies. With the leadership of the Global Technology Hub coming from a background of technology startups, you will benefit from a fast-paced learning environment, high visibility of your contributions and opportunities to shape processes, culture and technology strategies. At the same time, you take advantage of the stability, resources, and reach of a successful global company.

Guided by our global digital strategy, the Madrid Hub collaborates closely with international teams to deliver world-class technology solutions that power the future of commercial real estate.

As Senior Backend Engineer, you specialize in .Net, and will play a key role in designing, developing and maintaining scalable, secure, and high-performance enterprise software solutions. You will contribute to global products and platforms that serve both internal and external customers in Commercial Real Estate across multiple regions. Working closely with international Product, Engineering, DevOps, Data, QA and Architecture teams, you will ensure delivery excellence, software quality and great customer experience.

You are a hands-on problem-solver with strong software design principles, who thrives in a collaborative and agile environment. This role offers the opportunity to influence technical direction and mentor junior engineers while building solutions with real business impact

Essential Functions and Job Duties

Software Development and Design

• Implement scalable and maintainable B2B software products using the Microsoft .NET stack (C#, ASP.NET Core)
• Contribute to architecture discussions/technology evaluation and participate in system and code reviews.
• Help define and adhere to coding standards, documentation and modern software lifecycle best practices, such as SOLID principles, unit testing, CI/CD, and secure coding
• Collaborate with product managers, designers, and QA to translate business requirements into technical specifications and user stories.
• Participate in sprint planning, backlog refinement and feature grooming to ensure technical feasibility and shared understanding across disciplines

Technical Leadership

• Act as a technical mentor to mid-level and junior engineers within your team or project and beyond.
• Identify opportunities for technical improvements and advocate for high-quality engineering standards
• Participate in design and code review sessions to uphold engineering excellence across the team
• Take on technical ownership of production systems
• Continuous improvement of agile methodologies and tools

Quality and Performance

• Drive culture of test-first development with unit, integration and performance testing
• Support root cause analysis and resolution of production issues, ensuring high reliability and uptime
• Contribute to ongoing platform refactoring and modernization efforts.

Global Collaboration

• Work closely with DevOps and Engineering Operations teams to optimize build pipelines, observability and deployment automation.
• Ensure compliance with global standards, information security policies and regulatory requirements
• Collaborate regularly with Product Teams, especially Product Owners, to align on requirements, clarify priorities and deliver business value iteratively.

Qualifications

Required Skills/Experience:

• 8+ years of experience in .NET software development with C# and ASP.NET Core.
• Strong knowledge of object-oriented design, microservices architecture and API development (REST/GraphQL)
• Experience with SQL and NOSQL databases (e.g. SQL Server or Postgres SQL, Cosmos DB, MongoDB), as well as caching with Redis or similar.
• Advanced understanding of cloud-native architectures, CI/CD pipelines and DevOps practices (preferably GCP)
• Experience in containerization (Docker, Kubernetes)
• Agile Development experience (Scrum/Kanban), including story estimation, code reviews and pair programming.
• Experience working in distributed or remote teams and using tools such as Jira, GitHub, Miro and Azure DevOps.
• Solid understanding of performance optimization.
• Excellent interpersonal and communication skills, fluent in English and Spanish.
• Passionate about building high-quality software products with empowered teams.
• Understanding of secure development practices and compliance frameworks (e.g. ISO27001, GDPR, SOC2).

Preferred Skills/Experience:

• Experience in working in a global, multi-cultural organization.
• Exposure to domain-driven design (DDD) and event-driven architecture.
• Experience with observability tools (e.g. Sentry, Lighthouse etc.)
• Ability to work in a fast-paced, growing tech environment and to foster change in larger organizations.