Backend Developer

Job Description:

Location: On\-site (Merseyside)
Employment Type: Full\-time, Permanent

About Osdire

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.

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 ResponsibilitiesSystem 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 RequirementsCore 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
\- 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 Types: Full\-time, Permanent

Benefits:

• Casual dress


• Company pension


• Sick pay

Ability to commute/relocate:

• Liverpool L3: reliably commute or plan to relocate before starting work (required)

Application question(s):

• Do you agree to work on site?


• Do you require sponsorship in the future? Please provide visa expiration date if applicable

Work Location: In person

Pay: £35,000\.00\-£45,000\.00 per year

Ability to commute/relocate:

• Liverpool L3 1QL: reliably commute or plan to relocate before starting work (required)

Application question(s):

• Do you require now or in the future work sponsorship to continue working?

Work Location: In person

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