Senior Backend Developer (PHP / AI)
Multis UK Limited is looking for an experienced Senior Backend Developer for the development and improvement of production systems, APIs and online marketplace platforms. AI-assisted development is part of our everyday workflow.
Form of employment: part-time, full-time, contract
Location: Remotely
Job responsibilities
- Design and development of backend applications and REST APIs
- Development in PHP 8+ with SQL databases
- Architecture and improvement of existing production systems
- Search, automation and third-party service integrations
- Code review, debugging and automated testing
- Use of AI coding tools and AI agents for development, research, testing and code review
- Integration of AI APIs and agents into applications where appropriate
- Technical guidance for junior developers
Requirements
- Strong commercial backend development experience
- Very good PHP and SQL knowledge
- Experience designing and maintaining REST APIs
- Git and modern development workflows
- Linux and Docker experience
- Ability to understand and improve existing codebases
- Ability to work independently and make sound technical decisions
- Comfortable using modern AI coding tools and AI agents as part of development
Advantage
- MySQL and PostgreSQL
- Elasticsearch and search technologies
- Microsoft Azure or other cloud platforms
- JavaScript or TypeScript
- Automated functional and API testing
- Microservices and asynchronous processing
- Experience integrating LLM/AI APIs, agents or AI-assisted content processing
We offer
- Work on real international production systems and online marketplaces
- Modern development workflow including AI-assisted engineering
- Flexible remote cooperation
- High level of technical independence
- Opportunity to influence architecture and technical direction
Contact for this job position:
Multis UK Limited
info@multisltd.co.uk
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