Senior Full Stack WordPress / PHP Developer

Remote

Full Time

Experienced

We’re helping a Swiss-based digital agency find a Senior Full Stack WordPress / PHP Developer to join their long-term, international team.

You’ll work on complex, high-quality WordPress builds, custom PHP systems, and e-commerce platforms — collaborating with developers and designers across Switzerland, Latvia, and Spain. This is a senior-level, hands-on position for someone with strong technical expertise, proactive communication, and a long-term mindset.

Full-Time (Long-Term)
Schedule: Swiss working hours (GMT+2)
Location: Fully Remote
Engagement: Independent Contractor
Start Date: ASAP
Rate: $2400-$3200/month (depending on level of experience)

Key Responsibilities

Build and maintain custom WordPress and PHP applications, ensuring high performance and scalability.
Modify and optimize existing PHP codebases, implementing efficient logic and caching.
Work with custom theme builders (UTheme, WooTheme) and advanced theme customization.
Implement front-end integrations using JavaScript, jQuery, HTML, and CSS.
Architect and optimize databases for speed and reliability (not relying solely on ACF).
Manage caching layers, cookie rules, and overall performance optimization.
Use Git for version control, clean commits, and branch management.
Collaborate with designers, PMs, and developers across multiple international projects.
Maintain clear, proactive communication and take ownership of deliverables.

Requirements

5+ years of professional experience as a Full Stack WordPress / PHP Developer.
Expert-level PHP & WordPress: deep knowledge of hooks, filters, post types, taxonomies, and theme architecture.
Experience with custom theme builders (UTheme Builder, WooTheme).
Intermediate–Advanced JavaScript/jQuery for dynamic interfaces.
Strong HTML/CSS skills for clean, responsive UI builds.
Understanding of database architecture, data structuring, and caching logic.
Comfortable using Git and working within version-controlled environments.
Excellent English communication (written and spoken).
Proven experience working in agency-style environments handling multiple projects.
High attention to detail — flawless work is non-negotiable; you double-check your own output.

Nice-to-Haves

Experience with ACF (Advanced Custom Fields) and REST API integrations.
Exposure to membership sites, funnel systems, or payment integrations.
Familiarity with caching frameworks and cookie rule management.

What We’re Looking For

A seasoned, proactive developer who thrives on ownership, precision, and accountability.
Someone who respects Swiss standards of quality — structured, disciplined, and dependable.
A long-term collaborator who communicates clearly, solves problems independently, and continuously improves.
You’re not rigid — you bring expertise but stay flexible, open-minded, and receptive to feedback.
Portfolio showing high-quality web apps, e-commerce platforms, membership sites, payment APIs, and dynamic content systems.

Recruitment Process

Initial Interview
Client Interview
Technical Assessment / Portfolio Review
Offer & Onboarding

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LinkedIn Profile URL:

Please provide at least two live website URLs you personally designed, built or contributed to (with a brief description of your role in each).*

Have you ever taken full ownership of front-end design implementation — translating Figma prototypes into responsive WordPress layouts (HTML, CSS, JS)?*

How confident are you collaborating in Figma to refine UI components, improve user experience, and lead both front- and back-end development?*

Please provide your GitHub / GitLab / Bitbucket profile link (where we can see your code samples or commits).*

How many years of full-time professional experience do you have as a WordPress/PHP Developer?*

Have you worked full-time in an agency environment handling multiple client projects?*

What is your current employment type?*

Please rate your proficiency in the following:
PHP*

Wordpress*

Which of these have you worked with extensively? (Select all that apply)* Custom WordPress themes (from scratch)Hooks, filters, and taxonomiesAdvanced Custom Fields (ACF)REST API integrationsWooCommerce customizationsCaching systems (Redis, Memcached, etc.)Livewire / Laravel BladePayment integrations / membership systems

Do you have experience working with international teams (Europe, US, or Australia)?*

Have you ever worked on a project for 2 years or longer with the same client? If yes, please describe your role.*

This position involves at least two interviews, live coding, and reference verification. Are you willing to undergo this process?*

Are you OK with the terms of engagement - fully remote, independent contractor, full time, Swiss working hours?*

How much is your current monthly rate (in USD)?*

How much is your expected rate (in USD)?*

Please mention a few dates and times of your availability within the next two weeks for a Google Meet interview (PH working hours, M-F).*

Human Check*

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