Backend developer

Eligibility Criteria

• Applicants must have the legal right to work in the UK.
• A valid UK residency status is required.
• Visa sponsorship is not available.

Role Overview

We are seeking an experienced Back-End Developer with strong Laravel and PHP expertise to play a key role in the development and scaling of our marketplace platform. You will be responsible for designing and building robust, secure, and high-performance backend systems that support core marketplace functionality and evolving business requirements.

Key Responsibilities

• System Architecture & Development
  • Design and implement scalable, maintainable backend architecture.
  • Apply SOLID principles, clean code practices, and clear separation of concerns.
  • Develop modular components using service-layer and repository patterns.
• Core Platform Features
  • User authentication and role-based authorisation (Sanctum/Passport).
  • Service listings (creation, editing, search, filtering).
  • Order lifecycle and transaction management.
  • Secure payment integrations (Stripe, PayPal).
  • Internal messaging, reviews, and dispute resolution.
  • RESTful API development with versioning support.
• Database & Performance
  • Design and maintain efficient, well-structured database schemas.
  • Optimise SQL queries, indexing, and prevent N+1 issues.
  • Implement Redis for caching, sessions, and queue systems.
  • Monitor performance and address scalability concerns.
• Integrations & Collaboration
  • Integrate third-party services such as payment providers and notifications.
  • Work closely with frontend developers (e.g., Vue.js) to ensure seamless API integration.
• Testing & Maintenance
  • Write and maintain feature and unit tests (PHPUnit/Pest).
  • Troubleshoot and resolve issues across development and production environments.
  • Support system stability and continuous improvement.

Technical Requirements

• Core Technologies
  • PHP 8.2+ with strong OOP principles.
  • Laravel (v10–12) with 3+ years’ production experience.
  • Advanced SQL (MySQL/PostgreSQL), query optimisation, indexing.
  • Redis for caching, sessions, and queues.
• Architecture & Tooling
  • Service-layer and repository patterns.
  • RESTful API design and authentication.
  • Event-driven architecture (Laravel Events & Listeners).
  • Git, Composer, PHPUnit/Pest.
  • Code quality tools (PHP Insights, Pint/CS Fixer).
• Performance & Testing
  • Query optimisation and N+1 prevention.
  • Queue and memory optimisation.
  • TDD mindset and integration testing.
  • Understanding of code coverage.
• Required Experience
  • E-commerce or marketplace platforms (2+ years).
  • Multi-user role systems and permissions (Spatie or similar).
  • Payment gateway integrations (Stripe, Braintree, PayPal).
  • Order/transaction processing workflows.
  • File upload (S3).

Job Details

• Experience: Required
• Employment: Full-time
• Schedule: Monday – Friday 8:30 am to 5 pm
• Salary: £35,000 – £45,000 yearly
• Starting time: Immediate start!
• Location: On-site (Merseyside)

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