Senior Software Engineer- Backend

dunnhumby is the global leader in Customer Data Science, partnering with the world’s most ambitious retailers and brands to put the customer at the heart of every decision. We combine deep insight, advanced technology, and close collaboration to help our clients grow, innovate, and deliver measurable value for their customers.

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, Nestlé, Unilever and Metro.

Dunnhumby helps retailers and brands deliver better experiences through Customer First strategies.

Tesco Retail Media is transforming how advertisers connect with consumers through personalized and targeted campaigns across retailers' digital and physical touchpoints.

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.

We’re looking for a Senior Backend Engineer (.NET/Java) who expects more from their career. This role offers an opportunity to build scalable, high-performance solutions in the platform engineering team, enhance code quality and engineering excellence, and contribute to critical architecture decisions within a data-driven environment.

What we expect from you:

• 6+ years of hands-on experience in backend development, focusing on performance, scalability, security, and maintainability.

• Strong proficiency in C# and .NET Core, with expertise in developing RESTful APIs and

• We are open for Java candidates open to work in dotnet/.net

• Drive code quality, ensuring adherence to best practices, design patterns, and SOLID

• Experience with cloud platforms (Google Cloud Platform C Azure), implementing cloud-native best practices for scalability, security, and resilience.

• Hands-on experience with containerization (Docker) and orchestration (Kubernetes, Helm).

• Strong focus on non-functional requirements (NFRs) such as performance tuning, observability (monitoring/logging/alerting), and security best practices.

• Experience implementing unit testing, integration testing, and automated testing

• Proficiency in CI/CD automation, with experience in GitOps workflows and Infrastructure-as-Code (Terraform, Helm, or similar).

• Experience working in Agile methodologies (Scrum, Kanban) and DevOps best

• Identify dependencies, risks, and bottlenecks early, working proactively with engineering leads to resolve them.

• Stay updated with emerging technologies and industry best practices to drive continuous improvement.

Key Technical Skills:

• Strong proficiency in C#, .NET Core, Java and RESTful API

• Experience with asynchronous programming, concurrency control, and event-driven architecture (Pub/Sub, Kafka, etc.).

• Deep understanding of object-oriented programming, data structures, and

• Experience with unit testing frameworks and a TDD approach to

• Hands-on experience with Docker and Kubernetes (K8s) for containerized

• 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 and high-scale distributed

• Proficiency in relational databases (PostgreSQL preferred) and exposure to NoSQL

For further information about how we collect and use your personal information please see our Privacy Notice which can be found (here)

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)