Senior Software Engineer

Posted 14 Days Ago
Be an Early Applicant
London, Greater London, England, GBR
Hybrid
Senior level
Software • Financial Services
The Role
Build and ship internal developer tools, shared services, and platform capabilities that improve engineering productivity. Lead complex work from concept through delivery, contribute to resilient architecture, CI/CD, observability, and documentation, and mentor engineers. Collaborate with engineering leadership to shape technical direction and engineering practices. The role may also explore responsible use of AI-assisted development tools.
Summary Generated by Built In

Build an enabled Engineering community at NewDay 


We’re building our Engineering Enablement team and are looking for a Senior Software Engineer who enjoys solving problems that make other engineers more effective.


Rather than focusing on a single customer-facing product, you’ll build the internal tools, services and platform capabilities that help engineering teams deliver safely and quickly. You’ll have scope to influence a developing roadmap, identify opportunities to improve how we engineer software, and turn those ideas into practical solutions.


This is a hands-on senior engineering role. You’ll write and ship software while also leading complex work end to end, collaborating with engineering leadership, mentoring others and helping shape better engineering practices. You’ll also have opportunities to explore how AI-enabled development tools improve engineering effectiveness when used thoughtfully and responsibly. 


How you'll contribute:

  • Design, build and ship high-quality software, including internal developer tools and shared platform capabilities that make engineers more productive.
  • Lead complex engineering work from idea to delivery, identifying problems, evaluating solutions and bringing the right people together to deliver improvements.
  • Help shape resilient engineering foundations, contributing to architecture, CI/CD, observability, documentation and maintainable technical solutions.
  • Support other engineers to succeed, through mentoring, technical discussions, thoughtful reviews and clear documentation.

We're looking for these essential skills: 

  • Strong hands-on experience with C# and .NET or TypeScript, including building and designing REST APIs.
  • Experience writing and maintaining automated tests throughout the software development lifecycle, alongside strong continuous integration and continuous delivery practices.
  • The ability to contribute to system and architecture decisions, with a focus on resilience, scalability and maintainability.
  • Experience taking significant engineering work from idea through to delivery, working autonomously while bringing stakeholders and other engineers with you.
  • Strong communication and an enabler mindset: you can explain technical decisions clearly, create useful documentation, mentor others and enjoy building tools or services that make engineers' jobs easier.

We’re also interested in engineers who are thoughtful about AI-assisted development. You might already use tools such as GitHub Copilot or Claude and understand both where they can add value and where engineering judgement still matters.


We'd love for you to know or want to learn:

It would be useful, but isn't essential, if you also have experience with:

  • Microsoft Azure or another Platform-as-a-Service (PaaS) cloud environment.
  • Building internal developer tooling, shared engineering services or reusable platform capabilities.
  • Observability, metrics, data analysis or shared engineering tooling.
  • Event-driven architectures or working across more than one programming language.
  • Contributing to engineering standards and technical direction across teams, or supporting the recruitment and onboarding of engineers.

Why join this team?

You’ll be joining as the Engineering Enablement team is being built, so this is an opportunity to influence what it becomes rather than simply inherit a fixed roadmap. 


#LI-Hybrid

#LI-TM1

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.

Permanent

Skills Required

  • Strong hands-on experience with C# and .NET or TypeScript
  • Experience building and designing REST APIs
  • Experience writing and maintaining automated tests throughout the software development lifecycle
  • Strong continuous integration and continuous delivery practices
  • Ability to contribute to system and architecture decisions focused on resilience, scalability, and maintainability
  • Experience taking significant engineering work from idea through delivery
  • Ability to work autonomously while collaborating with stakeholders and engineers
  • Strong communication, documentation, mentoring, and engineering-enablement skills
  • Experience with Microsoft Azure or another PaaS cloud environment
  • Experience building internal developer tooling, shared engineering services, or reusable platform capabilities
  • Experience with observability, metrics, data analysis, or shared engineering tooling
  • Experience with event-driven architectures or multiple programming languages
  • Experience contributing to engineering standards and technical direction across teams
  • Experience supporting engineering recruitment and onboarding
  • Familiarity with AI-assisted development tools such as GitHub Copilot or Claude
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The Company
HQ: London
1,150 Employees
Year Founded: 2001

What We Do

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.

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