London-based WordPress agency
For over 11 years, I built and developed websites for the agency’s clients. I was responsible for front-end development, custom themes and a shared starter theme used across projects.
Szymon
Kądzielawa.
Available from December 2026
Senior Web
Developer
WordPress & Front-end
I build and develop websites and web platforms. I help teams deliver new solutions and businesses keep their websites running well.
14+ years in WordPress and front-end development
Kraków, Poland Working remotely
Teams I’ve worked with
WordPress and WooCommerce.
WordPress VIP partnerI worked in an international development team on client websites. I contributed components and implementations alongside designers, testers and project managers.
Software house specialising in healthcare
I develop and maintain a WordPress Multisite platform for the public sector. I work directly with the client, deliver new features and improve integrations and website reliability.
About me
From business needs
to a working website.
I start by understanding what a website needs to achieve and who will use it. I help set priorities, choose the technology and plan a solution with future content editing, maintenance and development in mind.
I care about visual detail and ease of use. I combine aesthetics with accessibility, performance and technical SEO. You get a website that looks good, is easy to use and provides a solid technical foundation for your marketing.
WordPress is my main speciality. I also use other technologies when they suit the project’s needs. I implemented E636 Expat Services in Astro; my own portfolio is also static. Content management, budget and plans for growth guide the choice of solution.
Selected experience
Websites evolve.
Experience stays.
Selected problems I’ve solved and implementations I’ve been responsible for.
One platform.
Multiple websites.
As the primary developer, I develop and maintain a WordPress Multisite platform for a public institution. I work directly with the client, translating organisational needs into new features and improvements to existing websites.
One of my key tasks was making imports from external data sources more reliable. I analysed and improved the process so that data arrives in WordPress consistently. To handle failures, I built an admin tool for retrying imports and an option for editors to upload an XML file manually.
I also supported a hosting migration, helping diagnose performance issues in the Kubernetes environment after the move. Ongoing development includes custom plugins, REST endpoints for mobile apps, and accessibility and UX improvements.
Flexible publishing.
Consistent design.
I implemented the front-end of a custom WordPress theme for an international company’s blog, translating the supplied designs into a responsive, accessible website with optimised assets.
I built a set of ACF Blocks: an article slider, lists of recent posts from a selected category, and CTA sections. Editors could choose the number of articles per row to create different grid layouts.
The editorial team gained the tools to build varied pages independently using reusable components, while keeping the blog’s design consistent.
Design brought
to life.
I implemented the complete front-end of a research initiative website for a UK university. The design combined full-screen sections, video and Lottie animations into an experience resembling an interactive presentation.
I combined Lottie animations with video, using an animated mask to reveal the footage. I refined the synchronisation and made the effect work consistently across browsers.
On mobile, I rearranged the elements and adapted the animations to smaller screens. I replaced section-by-section scrolling with natural page scrolling to make the website comfortable to use on phones.
Agency projects are described anonymously to respect client confidentiality.
From someone I’ve worked with
Paulina JacykowskaProject Manager & Business Analyst
Worked together at Momentum
“I honestly wish everyone had a Szymon in their team!”“Even in challenging situations, he always stays composed, approaches problems methodically, and patiently explains the best solutions to both me and the client.”
More recommendations on LinkedInWorking together
Your team.
My commitment.
We can work together on an ongoing basis or on a specific project.
For teams
I can join full-time or on an ongoing contract. I’ll become part of the team’s day-to-day work and take ownership of the tasks entrusted to me.
For agencies
I can provide regular development support or join a specific project. We’ll agree on availability and scope around your team’s workload.
For businesses
You’ll work directly with me, from the first conversation through to launch. We can agree on a project and then arrange ongoing website care.
Have a project or a place on your team?
Let’s talk.
S5 Digital Szymon Kądzielawa
Medweckiego 87
32-083 Balice
Poland
EU VAT ID: PL6751318817