PHP Developer


Full Time


UK Based Hybrid Working

Backend Developer (Symfony)


Reporting to:
Development Team Lead
Working hours:
37.5 hours per week
Flexitime - choose start, finish & lunch times to suit work & personal responsibilities
UK based hybrid role
Hybrid. Work from our modern city-centre office in Leeds and remotely from home.
Ultimate flexibility, providing greater control of your work-life balance

Direct applicants only please. No agencies.


If you’re an ambitious, experienced Backend PHP Developer who thrives in a fast-paced environment, delivering solutions built with the latest technology, this could be your next challenge.

9xb design, build, manage and support high-performing, complex eCommerce stores. Join our team of experts including consultants, project managers, designers, developers and engineers and help to solve complex challenges that deliver best-in-class eCommerce experiences for our clients’ customers.

With a wealth of knowledge and experience to learn from and a wide range of clients with new and unique requirements, this challenging role will provide a variety of new and interesting projects sure to keep you feeling challenged and provide the experience to drive your continued development.


1. Design, develop and maintain secure, scalable and high-quality web applications

  • Translate project specifications and tickets into clean, secure, test-driven, easily maintainable code
  • Adhere closely to project plans and deliver work that meets functional & non-functional requirements
  • Create new, innovative, secure and scalable features for our clients’ web applications
  • Troubleshoot, debug and optimise applications
  • Anticipate and adapt to changes in project specifications and/or schedules during development
  • Ensure all work is delivered to a high standard, quality, and best practice
  • Work with QA team to implement appropriate testing and mitigate regression
  • Clearly document your work to provide an effective future resource

2. Provide backend development resource to the wider business

  • Support our existing applications and technologies ensuring they remain fit for purpose
  • Collaborate and work with other departments/teams on the backend needs of projects
  • Be able to translate complex technical terms into layman's terms for less technical stakeholders
  • Support existing projects and features across multiple platforms, software stacks and generations
  • Maintain a close working relationship with project stakeholders
  • Find innovative and efficient solutions to new challenges

3. Commercial awareness

  • Maintain good levels of performance and productivity
  • Ensure all work is delivered in line with client and business objectives
  • Ensure high client satisfaction by consistently delivering high-quality work, on time and to budget
  • Provide accurate estimates by ensuring you have a complete understanding of project requirements
  • Proactively communicate issues, challenges and blockers early to manage stakeholder expectations
  • Build reusable code and libraries to improve efficiency and maintainability

4. Continued professional development 

  • Consistently demonstrate reliability, professionalism and a positive attitude
  • Seek regular advice and validation from senior team members and your line manager
  • Ensure individual efforts continue to be aligned with 9xb’s core business objectives
  • Maintain proficiency in industry-standard tools, software and applications
  • Stay up to date with the latest technology and trends through reading and on-demand learning
  • Retain an in-depth understanding of 9xb’s core front-end technologies
  • Keep up to date with the latest eCommerce best practice principles
  • Adhere to workplace policies and procedures to maintain efficiency & professionalism
  • Additional tasks, projects and training as agreed with your line manager


Key Performance Indicators (KPIs) are how your continued progress within your role will be measured. KPIs highlight success, provide a focus for improvement and help focus attention on what matters most.

  1. Productivity and efficiency
  2. Output quality
  3. Client satisfaction (internal & external)
  4. Personal development

Job Requirements

Essential skills:

  • At least 3 years experience working in backend web development
  • Good understanding and experience of a PHP MVC - preferably Symfony framework
  • Use of ORMs such as Doctrine (and ideally SQL knowledge)
  • Working regularly with APIs and Web Services (REST, SOAP, etc)
  • Unit Testing 
  • Good communication skills

Desirable skills:

  • Working knowledge of eCommerce platforms
  • Working knowledge of payment gateways
  • API platform experience / Building restful API’s
  • Experience / Awareness of AWS/Cloud architecture
  • The use of Docker / Composer
  • Good understanding of design principles (SOLID, DRY, etc) and design patterns
  • The use of TDD (Test Driven Development) practice or other testing practice
  • Experience working within an Agile environment 
  • Agile Scrum project management with Jira

Example Team Benefits

  • Hybrid working environment
  • Employees have the autonomy to choose where and when they work to best meet their objectives
  • Choose between working in a modern city centre office or working remotely from home
  • Flexitime - choose start and finish time to suit deadlines, commuting, personal responsibilities
  • Long lunch - Need a longer lunch break? No problem, flex your start and finish time to suit
  • Commuting allowance - cash towards the cost of your commute
  • Regular performance-based salary reviews
  • 25 days holiday per year (plus bank holidays)
  • Holiday Exchange - Buy or sell extra or unused holiday days
  • Individual spot rewards
  • Macbook Pro laptop for use at work & home
  • Apple Airpods
  • Regular team social events & treats
  • Monthly team lunch on us
  • Hiring bonus referral scheme
  • Company sick pay scheme
  • Cycle to work scheme
  • and more…

How to apply

Please send your CV and cover letter to
Mark Pickering