.NET Full Stack Senior Software Engineer
We are seeking talented professionals to join a high-profile digital transformation programme for a leading global fashion retailer. This team plays a pivotal role in delivering the high-quality imagery, video, and digital content that power customer experiences across multiple markets. Supported by significant investment in advanced technologies, AI-enabled content solutions, and cloud-native platforms, the programme is evolving from traditional production workflows to a scalable, data-driven content ecosystem. This transformation enables faster speed to market, enhanced personalisation, and more immersive shopping experiences for millions of customers worldwide. The role offers a unique opportunity to contribute to innovative solutions at the intersection of creativity, technology, and operational excellence, while working within a collaborative, forward-thinking delivery team focused on driving measurable business impact.
What you’ll be doing
As a Senior Software Engineer , you'll play a pivotal role in shaping the technology behind a business-critical content production and delivery platform for a leading global fashion retailer. Working with modern agentic AI and accelerated development practices, you'll help build and evolve applications using .NET Core, React, Docker, and Kubernetes , while championing engineering best practices such as TDD and CI/CD automation . Your work will directly support the creation, management, and delivery of high-quality digital content at scale, enabling engaging customer experiences for millions of users worldwide.
- Work as part of an enthusiastic and motivated Agile development team that takes pride in delivering high-quality software into production.
- Collaborate closely with business analysts, product stakeholders, and engineers to break down feature requirements into well-defined backlog items for development.
- Continuously enhance and improve existing codebases, platforms, and technologies while contributing to the design and delivery of new features and capabilities.
- Contribute to the adoption of engineering best practices, ensuring solutions are scalable, maintainable, and aligned with modern software development standards.
- Mentor junior team members, share technical knowledge, and support the team in achieving sprint goals and delivery commitments.
- Work collaboratively across cross-functional teams to deliver innovative solutions that drive operational efficiency and business value.
Key Skills and Experience
- A customer first mind set
- Expertise and experience in a broad base of technologies, ideally .NET Core (C#) & ASP.NET Core, CosmosDB, SQL, Azure ServiceBus, AKS, React/node.js
- Agentic & vibe coding practices
- A good understanding of the Application Lifecycle and a solid understanding of Quality Assurance, Database Engineering and Build and deployment
- An appreciation for a properly layered architecture
- An ability to understand and model the business domain
- In-depth knowledge of the tools and practices available and appropriate to each phase of software delivery, such as:
- DDD, TDD, BDD, Integration Testing, Performance Testing
- CQRS, Event Sourcing, Event Storming
- CI, Continuous Delivery, Build Automation
- JavaScript and associated UI frameworks and web technologies
- Relational and non-relational database technologies (e.g. SQL Server and Cosmos)
- Cloud based development & delivery platforms (ideally Microsoft Azure)
- Strong interpersonal and communication skills
- A constant drive for self-improvement
- An ability to actively promote ideas and techniques within the team
- A desire to be at the forefront of technical discussion and design
- A product focus with a desire to build great experiences for our customers
Additional eligibility requirements:
Candidates must currently reside in the UK.
- Candidates must be available to start within 4 weeks of receiving an offer.
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.NET Full Stack Senior Software Engineer in London employer: Cognizant
Cognizant is an exceptional employer that fosters a collaborative and innovative work culture, making it an ideal place for professionals seeking to excel in their careers. With a strong emphasis on employee growth and development, you will have access to mentorship opportunities and the chance to lead transformative projects in a dynamic environment. Located in a vibrant area, Cognizant offers unique advantages such as a diverse team and a commitment to work-life balance, ensuring that your contributions are both meaningful and rewarding.
