dunnhumby is the global leader in Customer Data Science, empowering businesses everywhere to compete and thrive in the modern data-driven economy. We always put the Customer First.
Our mission: to enable businesses to grow and reimagine themselves by becoming advocates and champions for their Customers. With deep heritage and expertise in retail – one of the world’s most competitive markets, with a deluge of multi-dimensional data – dunnhumby today enables businesses all over the world, across industries, to be Customer First.
dunnhumby employs nearly 2,500 experts in offices throughout Europe, Asia, Africa, and the Americas working for transformative, iconic brands such as Tesco, Coca-Cola, Meijer, Procter & Gamble and Metro.
We’re looking for a Backend Engineer (.NET) who expects more from their career. This role offers an opportunity to build scalable, high-performance, and multi-tenant solutions within the platform engineering team. You'll play a key role in enhancing code quality and engineering excellence, contributing to critical architecture decisions, and enabling multi-tenant capabilities across distributed systems in a data-driven environment.
Key Technical Skills Required:
• Strong proficiency in C#, .NET Core, and RESTful API development.
• Experience with asynchronous programming, concurrency control, and event-driven architecture (Pub/Sub, Kafka, etc.).
• Deep understanding of object-oriented programming, data structures, and algorithms.
• Experience with unit testing frameworks and a TDD approach to development.
• Hands-on experience with Docker and Kubernetes (K8s) for containerized applications.
• Strong knowledge of performance tuning, security best practices, and observability (monitoring/logging/alerting).
• Experience with CI/CD pipelines, GitOps workflows, and infrastructure-as-code (Terraform, Helm, or similar).
• Exposure to multi-tenant architectures with strong understanding of NFRs, including tenant isolation strategies, secure resource partitioning, performance profiling across tenants, shared vs. isolated resource models, and scalable, resilient design patterns for onboarding and operating multiple tenants concurrently.
• Proficiency in relational databases (PostgreSQL preferred) and exposure to NoSQL solutions.
What you can expect from us
We won’t just meet your expectations. We’ll defy them. So you’ll enjoy the comprehensive rewards package you’d expect from a leading technology company. But also, a degree of personal flexibility you might not expect. Plus, thoughtful perks, like flexible working hours and your birthday off.
You’ll also benefit from an investment in cutting-edge technology that reflects our global ambition. But with a nimble, small-business feel that gives you the freedom to play, experiment and learn.
And we don’t just talk about diversity and inclusion. We live it every day – with thriving networks including dh Gender Equality Network, dh Proud, dh Family, dh One, dh Enabled and dh Thrive as the living proof. We want everyone to have the opportunity to shine and perform at your best throughout our recruitment process. Please let us know how we can make this process work best for you.
Our approach to Flexible Working
At dunnhumby, we value and respect difference and are committed to building an inclusive culture by creating an environment where you can balance a successful career with your commitments and interests outside of work.
We believe that you will do your best at work if you have a work / life balance. Some roles lend themselves to flexible options more than others, so if this is important to you please raise this with your recruiter, as we are open to discussing agile working opportunities during the hiring process.
For further information about how we collect and use your personal information please see our Privacy Notice which can be found (here)
