Mid-Senior Full-Stack WordPress Developer - London at Sunny Art Centre, London WC2B 4AN, £35 an hour

£35 per Hour London WC1V In-House 16–24 Hours per Week

Sunny Art Centre is seeking a Mid–Senior Full-Stack WordPress Developer to join our in-house creative and technical team on a part-time freelance basis . This role is ideal for an experienced developer who enjoys working in a creative arts environment and wants to take long-term ownership of a high-profile cultural website.

You will work from our open-plan gallery and studio space in central London (WC1V) , surrounded by an exceptional collection of Old Master artworks from both Western and Eastern traditions.

The Role

You will be responsible for the ongoing development, maintenance, performance, security, and scalability of Sunny Art Centre’s official WordPress website. This includes both front-end and back-end development , plugin and theme management, staging workflows, third-party integrations, and performance optimisation.

This is a hands-on, responsibility-driven role where you will work closely with:

• Designers

• Marketing team

• Management

You will have genuine influence over technical direction, performance strategy, and future feature development .

Key Responsibilities

• Maintain and monitor website uptime, speed, security, and stability

• Develop and enhance custom WordPress themes and plugins

• Implement new features and improve existing functionality

• Build responsive layouts from design concepts using:

  • HTML5, CSS3, JavaScript, jQuery

• Integrate external services and APIs

• Optimise Core Web Vitals , site speed, caching, and database performance

• Maintain clean, reusable, well-documented codebases

• Create and manage technical documentation for systems, plugins, and integrations

• Collaborate with designers to ensure accurate visual implementation

• Support marketing integrations (analytics, conversion tracking, SEO tools)

• Provide basic WordPress training to staff for content management

• Stay up to date with WordPress core, PHP, security patches, and performance standards

Required Experience & Skills (Updated for Modern WordPress)

• 4–7+ years’ professional WordPress development experience

• Strong front-end skills:

  • HTML5, CSS3, JavaScript, jQuery

• Strong back-end experience:

  • PHP

  • Custom WordPress development

• Strong experience with custom post types & custom fields (e.g. ACF or similar)

• Confident optimisation of Elementor, WPBakery, or Gutenberg block builds

• Proven experience with:

  • REST APIs

  • JSON & XML

  • External API integrations

• Solid understanding of:

  • Website architecture

  • Performance optimisation

  • Security best practices

• Experience with staging environments and safe deployment workflows

• WordPress security best practices , including:

  • Firewalls

  • Malware protection

  • Backup systems

  • Role-based access

• Experience integrating:

  • WooCommerce

  • Stripe

  • Online booking systems

  • Membership platforms

• Tracking & marketing technology experience:

  • Google Analytics 4

  • Google Tag Manager

  • Meta Pixel

  • SEO performance optimisation

• Strong understanding of UI/UX principles

• Experience using:

  • Git, Mercurial, or SVN

  • Chrome DevTools and debugging tools

• Ability to convert wireframes and layouts into responsive, high-quality builds

• Reliable project ownership and time management

Desirable (Bonus Skills)

• Some experience beyond WordPress (broader full-stack exposure)

• Server-level familiarity (basic DevOps understanding)

• Structured data / schema implementation

Working Pattern & Pay

• Hourly Rate: £35 per hour

• Contract Type: Freelance

• Hours: 16–24 hours per week

• Working Style: In-house, London WC1V

• Days: Flexible, to be agreed in advance

• Long-term stability without full-time pressure

• Ideal for high-level freelancers seeking consistent creative work

How to Apply

Please email the following to:

info@sunnyartcentre.co.uk

• Your CV

• A link to your online portfolio / live WordPress projects

• Applications without portfolio links will not be considered.

Application Review

• Only shortlisted candidates will be contacted

• If you do not hear from us within 5 working days , please assume your application has been unsuccessful