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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on e‑commerce integrations for a large logistics company. Core stack includes WooCommerce, WordPress, PHP and integrations via REST API and webhooks, with emphasis on BaseLinker. Responsibilities cover developing and extending WooCommerce plugins, synchronizing orders, shipments and statuses, creating custom functionality with hooks and filters, ensuring WP/WooCommerce compatibility and troubleshooting production issues. Required minimum 3 years of PHP experience, practical MySQL, JavaScript/HTML/CSS, Git and advanced English.
PHP Developer with WooCommerce (f/m/x)
Company: Sii Sp. z o.o.
from: 14 September 2026
to: 14 October 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:mid
working mode:remote • hybrid • full office
Poznań, Wilda
Requirements
Expected technologies
BaseLinker
PHP
REST
WooCommerce
WordPress
MySQL
JavaScript
HTML
CSS
Git
Optional technologies
Docker
Our requirements
- Minimum 3 years of commercial experience with PHP
- Strong hands-on experience in WordPress and WooCommerce development
- Experience in developing or extending WooCommerce plugins
- Practical experience with BaseLinker or Base.com
- Very good understanding of REST API integrations and webhooks
- Knowledge of WooCommerce order and checkout processes
- Previous work with MySQL and working knowledge of JavaScript, HTML, and CSS
- Experience with Git
- Ability to independently troubleshoot integration-related issues
- Advanced level of English
Optional
- Experience with e-commerce or logistics platforms
- Familiarity with courier, shipping, or marketplace integrations
- Knowledge of WooCommerce Blocks or Checkout Blocks
- Experience with WooCommerce HPOS
- Understanding of WordPress and WooCommerce coding standards
- Experience with automated testing, e.g. PHPUnit
- Familiarity with CI/CD and Docker
Your responsibilities
- Developing and maintaining solutions and integrations based on WordPress and WooCommerce
- Extending and developing WooCommerce plugins
- Integrating WooCommerce with BaseLinker and external logistics services
- Building and maintaining integrations using REST APIs and webhooks
- Managing order, shipment, delivery method, and status synchronization
- Troubleshooting and resolving integration and production issues
- Creating custom WooCommerce functionality using hooks, actions, and filters
- Ensuring compatibility with new versions of WordPress and WooCommerce
- Improving the performance, stability, and security of existing integrations
- Collaborating with product, business, and other development teams
- Creating and maintaining technical documentation for integrations
About the project
We are looking for an experienced WooCommerce Developer with strong BaseLinker expertise to join an e-commerce integration project for one of the largest logistics companies in Europe.
In this role, you will focus on the development and maintenance of WooCommerce integrations, including connectivity with BaseLinker and external logistics services.
This is how we work on a project
- Continuous Deployment
- Continuous Integration
What we offer
- Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
- Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
- We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
- Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
- Comfortable workplace – class A offices or remote work
- Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
- PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
- Investment in your growth – meetups, webinars, training platform and technology blog – you choose
- Fantastic atmosphere created by all Sii Power People
Recruitment stages
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.Start your adventure with Sii!
Sii Sp. z o.o.
Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
This is how we work
PHP Developer with WooCommerce (f/m/x)
I apply to:
Sii Sp. z o.o.
Poznań, Wilda
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