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# Senior Full Stack Engineer

- **Company:** Dunnhumby
- **Location:** Salford, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** ASP.NET, .NET Framework, Multitier Architecture, Application Programming Interfaces (APIs), Microsoft Azure, C Sharp (Programming Language), Cloud Engineering, Software Quality, Continuous Delivery, Continuous Integration, Software Debugging, PostgreSQL, Role-Based Access Control, TypeScript, Data Logging, ReactJS, Istio, Backend, Gitlab, Git Flow, Kubernetes, Linkerd (Service Mesh), Front End Software Development, Key Vault
- **Published:** September 10, 2026
- **Apply:** https://www.collegerecruiter.com/job/2840591532-senior-full-stack-engineer

## About the Role

* Senior-level experience building and running production services in C# / ASP.NET Core, or TypeScript / Next.js / React - with working knowledge of the other side and an appetite to grow into both.
 * Comfortable owning a service on Kubernetes - deployments, probes, autoscaling, NetworkPolicies, RBAC - and debugging real failures from kubectl alone.
 * Solid working knowledge of Kubernetes operators and CRDs - you understand reconciliation loops, custom resources, and how operator-driven infrastructure differs from imperative provisioning.
 * Hands-on with at least one of GCP (GKE, Cloud SQL, Pub/Sub, Secret Manager) or Azure (AKS, Azure DB for PostgreSQL, Key Vault), and willing to learn the other.
 * Clear written communication - RFCs, ADRs, runbooks, PR descriptions other engineers can act on., * Crossplane experience - authoring Compositions, CompositeResourceDefinitions, or custom providers.
 * GitOps fluency with ArgoCD and Helm, and CI/CD authorship in GitLab.
 * Building custom Kubernetes operators with the Operator SDK or Kubebuilder.
 * Service mesh experience (Istio or Linkerd).
 * Prior experience migrating a product from bundled releases to continuous deployment.
 * Backstage or internal developer portal contributions.

## Description

* Shape clear, testable acceptance criteria with Product and Design.
 * Build and own end-to-end products across .NET services, TypeScript frontend, PostgreSQL, and GitOps deployment.
 * Design scalable backend systems (APIs, event handling, clean architecture patterns).
 * Deliver high-quality frontend experiences with accessible components and strong data/state management.
 * Work with cloud-native, declarative infrastructure (Kubernetes, Crossplane, CRDs).
 * Maintain high standards across testing (unit, integration, contract) and code quality.
 * Apply strong security practices across backend and frontend systems.
 * Build meaningful observability (tracing, logging, SLOs) focused on real user impact.
 * Take a cost-aware approach to scaling and resource usage.
 * Participate in an on-call rotation once ramped up.
 * Use AI-assisted development tools (e.g. Copilot, Claude) effectively in day-to-day work.


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