Senior Backend Developer .NET

Job description

Oct 17, 2025

Are you passionate about building robust, scalable backend systems that power cutting-edge marketing automation applications?

Join our team and help transform how global brands connect with their customers through innovative .Net solutions!

What will your day look like?

As a Senior .Net Backend Developer, you'll design, implement, and maintain high-performance APIs and services that form the backbone of our marketing process applications.

You'll collaborate closely with the Lead Software Application Architect and front-end teams to create seamless integrations between our CMS-based Activation Briefing application for CRM and paid media automation tools.

More specifically, you will:

• Develop and maintain scalable backend services using .Net 9 focusing on performance, security, and reliability • Design and implement RESTful APIs and microservices that support the content briefing workflows from clients through various automation and quality assurance tools

• Collaborate with the Lead Software Application Architect to implement the technical vision and architectural patterns across backend systems • Integrate with various marketing activation platforms, Digital Asset Management systems, and third-party APIs

• Optimize database design and queries for SQL Server and Cosmos DB to ensure efficient data storage and retrieval

• Implement robust authentication, authorization, and data security measures to protect client information

• Create and maintain containerized applications running in Azure, utilizing Azure App Services, Functions, and other cloud-native services

• Develop and maintain CI/CD pipelines for automated testing and deployment

• Implement logging, monitoring, and alerting systems to ensure high availability and quick issue resolution

• Mentor junior developers and conduct code reviews to maintain code quality and share knowledge

• Work collaboratively with cross-functional teams including front-end developers, QA engineers, and product managers

Who are you going to work with?

You'll join our Experience Studio team of talented individuals based in Copenhagen and Madrid.

Working directly with the Software Application Architect and Front-end Developers, you'll be part of a dynamic group that creates innovative marketing technology solutions.

Our diverse working environment fosters collaboration and growth, where each team member's contributions are valued.

What do you bring to the table?

You are a problem-solver with a passion for creating efficient, maintainable backend systems.

You communicate technical concepts clearly to both technical and non-technical stakeholders and thrive in collaborative environments.

More specifically, you have:

• Proven experience (7+ years) developing applications with .NET Core/Framework, with at least 3 years of experience with .NET 6 or newer

• Strong expertise in C#, REST API design, and microservices architecture.

• Experience with containerization technologies (Docker, Kubernetes) and cloud deployment in Azure and Google Cloud.

• Proficiency with SQL Server, Entity Framework, and document databases like Cosmos DB or similar

• Experience implementing authentication and authorization using OAuth/OpenID Connect

• Solid experience of working with software design patterns and SOLID principles

• Experience with CI/CD pipelines and DevOps practices

Ideally you also have:

• Knowledge of messaging systems and background processing (Azure Service Bus, Pub/Sub, RabbitMQ)

• Experience with Python 3.X and or Node.js 2x is beneficial but not strictly required.

• Experience with automated testing (unit, integration, and performance)

• Familiarity with agile development methodologies

• Experience integrating with CRM systems and marketing automation platforms.

• Knowledge of GraphQL - beneficial but not required

A leader in personalized customer experiences

VML MAP is a world-leading Centre of Excellence that helps businesses humanize the relationship between the brand and the customer through hyper personalization at scale, marketing automation and CRM.

With the brain of a consultancy, the heart of an agency and the power of technology and data, we work with some of the world's most admired brands to help them on their transformation journey to becoming truly customer-centric.

Together, we are 1000 + technology specialists, data scientists, strategic thinkers, consultants, operations experts, and creative minds from 55+ nationalities.

A global network

We are part of the global VML network that encompasses more than 30,000 employees across 150+ offices in 60+ markets, each contributing to a culture that values connection, belonging, and the power of differences.

#LI-EMEA

WPP (VML MAP) is an equal opportunity employer and considers applicants for all positions without discrimination or regard to characteristics.

We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.

For more information, please visit , and follow VML MAP on our social channels via , and .

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