Back End Developer

Overview

Osdire is a next-generation digital services freelancing marketplace currently under active development. The platform is being built to be scalable, secure, and user-centric, supporting high traffic volumes, complex workflows, and long-term growth.

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

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.

• 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

• User authentication and role-based authorisation (Sanctum/Passport)
• Service listings (creation, editing, search, filtering)
• Order lifecycle and transaction management
• Secure payment integrations (Stripe, Pay Pal)
• Internal messaging, reviews, and dispute resolution
• RESTful API development with versioning support

• 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

• Integrate third-party services such as payment providers and notifications
• Work closely with frontend developers (e.g. Vue.js) to ensure seamless API integration

• Write and maintain feature and unit tests (PHPUnit/Pest)
• Troubleshoot and resolve issues across development and production environments
• Support system stability and continuous improvement

• PHP 8.2+ with strong OOP principles
• Laravel (v10–12) with 3+ years’ production experience
• Advanced SQL (MySQL/Postgre
  
  SQL), query optimisation, indexing
• Redis for caching, sessions, and queues
• 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)

• Query optimisation and N+1 prevention
• Queue and memory optimisation
• TDD mindset and integration testing
• Understanding of code coverage.

• E-commerce or marketplace platforms (2+ years)
• Multi-user role systems and permissions (Spatie or similar)
• Payment gateway integrations (Stripe, Braintree, Pay Pal)
• Order/transaction processing workflows
• File upload (S3)

Job Types: Full-time, Permanent

• Company pension
• Sick pay

Ability to commute/relocate:

• Liverpool L3: reliably commute or plan to relocate before starting work (required)
• Do you agree to work on site?
• Do you require sponsorship in the future? Please provide visa expiration date if applicable