London, England, United Kingdom · Hybrid
As a Senior Software Engineer at NewDay, You’ll design and deliver high-quality C#/.NET applications, create robust APIs, and contribute to event-driven architectures in a hands-on role at the core of our tech ecosystem.…
Skills: C# 12+, .NET 8+, ASP.NET MVC, Web API, Event-Driven Architecture
London, England, United Kingdom · Hybrid
This is a newly created role with the opportunity to shape how one of the UK’s leading consumer credit providers is understood by current and prospective colleagues, clients, and the wider market. As Internal and Externa…
Skills: Corporate Storytelling, Executive Communications, Employer Narrative, Content Strategy, Stakeholder Management
London, England, United Kingdom · Hybrid
This is a high-impact opportunity to work at the centre of product performance and commercial decision-making. You’ll play a key role in analysing and optimising lending portfolios, using data to uncover insights, suppor…
Skills: SQL, Excel, Python, Tableau, Power BI
London, England, United Kingdom · On-site
Mission Statement & Summary As a Senior Site Reliability Engineer, you'll sit at the intersection of software engineering and operations, driving reliability, performance, automation, and resilience across our technology…
Skills: Software Engineering, .Net, C#, Infrastructure Automation, Observability
London, England, United Kingdom · On-site
Mission Statement and Summary This is an opportunity to define how millions of customers experience retail finance. As Senior Manager, Product Strategy, you'll own and evolve our Embedded Finance proposition, creating in…
Skills: Embedded Finance, Product Strategy, Stakeholder Management, People Leadership, Consumer Credit
London, England, United Kingdom · Hybrid
Shape engineering at NewDay. We’ve built a brand new Engineering Excellence function – a team focused on raising the bar across our entire engineering organisation. This isn’t a role where you own a single product or wri…
Skills: Engineering Leadership, Software Quality, CI/CD, Observability, Testing Strategy
London, England, United Kingdom · Hybrid
Why this opportunity is unique At NewDay Cards Ltd, we are on an ambitious mission to redefine the future of financial technology. As a Senior .Net Engineer, you will be an integral part of a dynamic team that is dedicat…
Skills: C# 12+, .NET 8+, ASP.NET MVC, Web API, PaaS
Leeds, England, United Kingdom · Hybrid
Externally this role could also be known as Finance Risk and Assurance Business Partner, Finance Risk Manager, Finance Risk and Assurance Specialist, Finance Risk Business Partner We’re looking for a Finance Risk Special…
Skills: Financial Risk Management, Control Testing, Assurance, Stakeholder Management, Governance
London, England, United Kingdom · Hybrid
Are you ready to define how machine‑learning systems are delivered, operated, and scaled across a data‑driven organisation? NewDay are looking for a Lead ML Engineer to set the standards, patterns, and technical foundati…
Skills: MLOps, Model Serving, CI/CD, Monitoring and Observability, AWS SageMaker
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Design and deliver high-quality C#/.NET applications and robust APIs within an event-driven architecture. Collaborate with agile teams to evolve the Stratus platform and implement continuous delivery practices for scalable systems.
Requires proficiency in modern .NET (C# 12+, .NET 8+) and experience with PaaS cloud environments and event-driven systems. Candidates should have a proven track record of building CI/CD pipelines and working in autonomous, agile environments.
As a Senior Software Engineer at NewDay, You’ll design and deliver high-quality C#/.NET applications, create robust APIs, and contribute to event-driven architectures in a hands-on role at the core of our tech ecosystem.
Working in a fast-paced, agile team, you’ll take solutions from code to production and help evolve our Stratus platform—driving reuse, consistency and engineering excellence.
Your impact: faster delivery, better performance, and scalable, future-ready systems that support NewDay’s growth.
How you'll contribute
Collaborate with engineers to build and deliver new platform capabilities.
Engage in hands-on programming, including coding, pair programming, and testing.
Participate in regular scrum ceremonies, contributing to the agile development process.
Work closely with the technical lead to build out Stratus Capabilities for other teams to leverage.
Implement Continuous Delivery practices to ensure fast and high-quality code deployment.
Leverage AI tools (e.g. GitHub Copilot) thoughtfully to improve efficiency and code quality
Own what you build – overseeing the performance and resilience of our systems in production.
Key Skills & Responsibilities
Proficiency in crafting modern .NET applications using C# 12+ (including .NET 8+ and NuGet).
Experience in crafting robust HTTP APIs with tools such as ASP.NET MVC, Web API, Carter, or Nancy.
Experience navigating Platform-as-a-Service (PaaS) cloud environments.
Proven experience with Event-Driven Architecture, designing systems that react in real-time.
Experience building and maintaining CI/CD pipelines (e.g. GitHub Actions, Octopus)
Ability to thrive in autonomous, agile environments where daily innovation is the norm.
Preferred Skills and Experience
Experience working with other technologies aside from .NET ( e.g. Java, Node)
Proven experience working with Microsoft Azure
Knowledge of Event-Sourced Systems, building architectures that track every state change.
Experience working with distributed, scalable database solutions.
Strong understanding of system design principles and modern engineering tooling.
Familiarity with Event Sourced architectures.
Your Impact
By joining NewDay Cards Ltd, you will contribute significantly to delivering top-tier financial solutions. You will be involved in crafting the future of our technology stack and promoting success through collaboration and innovation. You will work on demanding projects that call for creativity and technical skill, keeping us competitive.
Submit your application today to become a member of a team that recognizes your efforts and fosters your professional advancement. We look forward to discovering how you can contribute to accomplishing our ambitious aims and making a difference!
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At NewDay, we value all types of diversity. We’re an equal opportunity employer and believe that our differences create a vibrant, authentic working culture. We want all our colleagues to feel able to bring their whole selves to work. We don’t discriminate on the basis of protected characteristics or identities. We make sure that every job is crafted to be inclusive and that people with disabilities or caring responsibilities can take part in the application and interview process.
Tell us if you need accommodations: We’ll put reasonable adjustments in place to support you.
We work with Textio to make our job design and hiring inclusive.
PermanentJob Profile Summary – Senior Engineer (.Net).docxHelping people move forward with credit
At NewDay, our business is focused on a single, clear and defining purpose: to help people move forward with credit. We provide nearly 4 million customers with responsible access to credit, underpinned by best-in-class customer service and exceptional user experience. Our in-house, highly scalable digital platform alongside our proprietary credit decisioning capability unlocks our competitive advantage. Our broad credit product offering enables instalment finance, BNPL, 0% finance and carded and digital revolving credit. We operate multiple direct-to-consumer products and a range of credit solutions with some of the UK’s most loved brands. Our underwriting capability and experience allow us to responsibly say yes to more UK customers making us a merchant partner of choice. We partner to harness the power of data to drive commerce across the UK, creating value at scale.
Offices: 7 Handyside Street, London, London N1C 4DA, GB · Bruntcliffe way, Morley , Leeds LS27 0JG, GB
Helping people move forward with credit
At NewDay, our business is focused on a single, clear and defining purpose: to help people move forward with credit. We provide nearly 4 million customers with responsible access to credit, underpinned by best-in-class customer service and exceptional user experience. Our in-house, highly scalable digital platform alongside our proprietary credit decisioning capability unlocks our competitive advantage. Our broad credit product offering enables instalment finance, BNPL, 0% finance and carded and digital revolving credit. We operate multiple direct-to-consumer products and a range of credit solutions with some of the UK’s most loved brands. Our underwriting capability and experience allow us to responsibly say yes to more UK customers making us a merchant partner of choice. We partner to harness the power of data to drive commerce across the UK, creating value at scale.
Offices: 7 Handyside Street, London, London N1C 4DA, GB · Bruntcliffe way, Morley , Leeds LS27 0JG, GB
