Candour
Backend Systems Developer
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Role: Backend Systems Developer
Salary: £50,000 – £60,000
Location: Liverpool
Working Pattern: Hybrid
We’re working with an ambitious, technology-led organisation that is continuing to invest significantly in its engineering function. They’re looking for an experienced Backend Systems Developer to join the team and play a key role in developing and improving the integrations that underpin their digital platform.
This is a great opportunity to work on business-critical systems where performance, scalability, and reliability are essential. You’ll be responsible for developing backend services that connect customer-facing applications with warehouse, ERP, finance, and wider operational platforms, supporting the accurate and efficient movement of millions of data points every day.
If you enjoy working on complex integrations, developing robust backend services, and solving technical challenges, this could be an excellent opportunity to take you forward.
Responsibilities
- Design, develop, and maintain backend integrations between digital platforms and core business systems, including warehouse, ERP, and finance solutions.
- Build scalable middleware to support order processing, inventory synchronization, and real-time data exchange.
- Create and maintain REST APIs and event-driven integrations across multiple systems.
- Implement queue-based processing to support high-volume asynchronous workloads.
- Improve system resilience through retry mechanisms, circuit breakers, and fault-tolerant design.
- Work closely with engineers, product teams, and operational stakeholders to deliver high-quality technical solutions.
- Contribute to engineering standards and best practice through code reviews, mentoring, and knowledge sharing.
- Develop modern, cloud-ready services using clean, maintainable, and scalable architecture.
- Monitor system performance and identify opportunities to improve reliability, scalability, and efficiency.
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Essentials
- 4+ years’ commercial experience in backend software development using a strongly typed programming language.
- Experience integrating business-critical systems with ERP, warehouse management, or finance platforms.
- Strong SQL skills, including database design and performance optimization.
- Good understanding of software architecture principles, including SOLID, Clean Architecture, and Domain-Driven Design.
- Experience with modern development practices including CI/CD, automated testing, and Git.
- Hands-on experience with Docker and containerised applications.
- Experience working with message queues and event-driven architectures.
- Strong communication skills and the ability to collaborate effectively with both technical and non-technical stakeholders.
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Desirables
- Experience working with AWS or another cloud platform.
- Knowledge of Kubernetes or container orchestration.
- Exposure to GraphQL.
- Experience using AI-assisted development tools.
- Understanding of secure software development and data protection best practices.
- Previous experience working within high-transaction, high-availability, or fast-paced environments.
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