Senior.NET Backend Software Engineer

TUI Cruises GmbH; Madrid; Presencial; EUR 45.000 - 65.000; Jornada completa

Descripción de la vacante

A leading travel company in Madrid seeks a Senior .NET Back End Software Engineer to join a cross-functional team focused on digital transformation. The ideal candidate has advanced .NET Core C# experience, hands-on skills in microservices architecture, and a strong grasp of REST APIs. This role offers flexible working options and provides opportunities for career development within a diverse environment.

Servicios

Attractive remuneration

Exclusive travel perks & discounts

Extensive health & wellbeing support

Opportunities to upskill and grow

Hybrid or remote working models

Formación

• Advanced experience with .NET Core C# and EF Core.
• Hands-on experience working with Microservices architecture.
• Proficient in software designs and design patterns.
• Strong understanding of REST APIs.
• Expertise in Unit/Integration testing.
• Experience with relational databases.
• Hands-on experience with Git.
• Expertise in cloud design and services on AWS.
• Experience with Docker.
• Experience with CI/CD, preferably Gitlab CI.
• Passion for writing clean, maintainable code.
• English fluency.

Responsabilidades

• Develop and maintain backend systems using .NET Core C#.
• Build and optimize REST APIs and microservices.
• Drive innovation by recommending new technologies.
• Collaborate in code reviews and peer development activities.
• Ensure high-quality code through testing.

Conocimientos

.NET Core C#

Microservices architecture

OOP

REST APIs

Unit/Integration testing

Relational Databases

Git

AWS

Docker

CI/CD

English fluency

Descripción del empleo

As a Senior.NET Back End Software Engineer, you’ll work in a cross-functional and international team.

We're driving the digital transformation of our Tour Operator business, moving from legacy systems to modern technologies, while expanding B2C projects across Spain, Portugal, and LATAM.

You will be a valuable team member of TUI, the No.1 global and socially aware travel company. TUI Musement operates in over 115 destinations, offering opportunities to develop yourself by working as part of a unique context.

Application Closing Date: 06/08/2025 (Please note that due to a high number of applications we might need to close the role ealier than the application closing date - so don't delay!)

ABOUT OUROFFER

• Personal benefits: Attractive remuneration, exclusive travel perks & discounts, extensive health & wellbeing support, and more.
• Flexible working: Work is something you do, not somewhere you go. We encourage a healthy work-life balance and offer hybrid or remote working models.
• A career to shape: Opportunities to upskill, reskill and grow your career. Access the TUI Tech Learning Hub to level-up and reach your ambitions.
• Expand your horizons:Participate in our tech communities and collaborate on global projects and teams.
• Community: Get involved with incredible local charity and sustainability initiatives like the TUI Care Foundation and the Sustainable Tech Community.

ABOUT THE JOB

• You will develop and maintain backend systems using .NET Core C#.
• You will build and optimize REST APIs and microservices.
• You will drive innovation by recommending and implementing new technologies.
• You will collaborate in code reviews and peer development activities.
• You will ensure high-quality code through unit and integration testing.

ABOUT YOU

• Advanced experience with .NET Core C# and EF Core (code-first, LINQ, Lambda).
• Hands-on experience working with Microservices architecture.
• Proficient in OOP, software designs, design principles and design patterns.
• Strong understanding of REST APIs.
• Expertise in Unit/Integration testing, coverage and patterns.
• Experienced with Relational Databases (querying, modelling, normalization).
• Hands-on experience with Git as distributed VCS (Repository, CD/CI, YAML).
• Expertise in cloud design, infrastructure as code, tools and services on AWS.
• Experience with Docker.
• Experience with CI/CD, preferably Gitlab CI.
• Passion for writing clean, maintainable code with a focus on scalability and performance.
• English fluency (technical and everyday communication).

From a workplace to a place to belong.At TUI we embrace diversity, equity, and inclusion, encouraging everyone to come as you are, because together, our potential is limitless.

We are committed to supporting candidates with disabilities and impairments so if you require any support, please do let us know.