Back End Engineer

About The Role

Contract type: Permanent, Full-time Hours: Full-time, 35 hours Location: Head Office, Nottingham (Hybrid working, minimum 2 days per week)
Salary: Up to £70,000 depending on experience.
Application process: Please apply via the application button which will direct you to our careers site. If you require any adjustments to assist you in applying, please contact

Join our team and help shape reliable, secure and scalable backend services that power exceptional experiences for our customers and colleagues.

You will collaborate with Product teams, Frontend Engineers and technical leaders to design and deliver APIs and services that meet high standards and regulatory expectations. From technical design to implementation and operational support, you will play a key role in ensuring quality and performance.

We are looking for someone who takes pride in code quality, service health and continuous improvement, contributing to a culture of strong engineering discipline and practical delivery.

Here’s a taste of what you will be doing as a Backend Engineer (C# Node Python) at Nottingham Building Society:

• Build and Maintain Services – Design, develop and support backend services using Node.js, Python and C#.
• Create Robust APIs – Deliver well‑structured APIs and integrations with internal and third‑party systems.
• Write Quality Code – Produce clean, testable and maintainable code that meets agreed engineering standards.
• Shape Technical Solutions – Contribute to design discussions and help define scalable, secure solutions.
• Ensure Service Reliability – Maintain security, resilience and performance across all backend services.
• Support Operations – Investigate and resolve production incidents while improving service health.
• Champion Best Practices – Participate in code reviews, share feedback and enhance CI/CD delivery pipelines.
• Collaborate and Share Knowledge – Work closely with cross‑functional teams and contribute to documentation and continuous improvement.

• Strong Engineering Foundations – Solid understanding of backend principles and best practices.
• Hands‑On Technical Skills – Experience with Node.js, Python and/or C# in production environments.
• API and Integration Expertise – Skilled in API design, data modelling and service integration.
• Cloud and Deployment Knowledge – Familiar with cloud architectures and modern CI/CD practices.
• Security and Performance Awareness – Committed to building secure, reliable and performant systems.
• Problem‑Solving Ability – Comfortable troubleshooting across code, infrastructure and integrations.
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Effective Communication – Clear communicator with both technical and non‑technical colleagues.
• Adaptable and Collaborative – Works well in Agile environments, embraces feedback and continuous improvement.

• Competitive Package – Fair salary benchmarked against market data, annual discretionary bonus, and 29 days holiday plus bank holidays.
• Health & Wellbeing – Access to Medicash healthcare, mental health first‑aiders, and a suite of wellbeing resources to support you inside and outside of work.
• Work‑Life Balance – 35‑hour working week for full‑time roles, with flexibility to help you perform at your best.
• Career Growth – Ongoing personal and professional development, we’ll support your ambitions and help you grow your potential.
• Inclusive Culture – Be part of a friendly, values‑led team that genuinely cares about doing the right thing for colleagues and customers.
• Giving Back – Use two paid volunteering days each year to support causes close to your heart, through our Samuel Fox Foundation.
• Sustainability Focus – Join a business committed to reducing its carbon footprint and making a positive impact on the environment.
• Free access to Octopus Money – Financial coaching & tools that help you plan, manage, and make the most of your money.

We proudly embrace and celebrate diversity as a fundamental cornerstone of our values. We believe that a diverse and inclusive workplace is not just essential for our success but is also a reflection of the vibrant communities we serve. Our commitment to diversity extends beyond our internal culture to the…