Full-stack Developer | React & Node Specialist | WordPress Expert
Experienced developer with a strong background in frontend and backend development, specialized in React, Node.js, and WordPress. Over 15 years of freelance and in-house work spanning startups, e-commerce, gamification platforms, and educational projects. Skilled at leading teams, prototyping, accessibility (WCAG, GDPR), and troubleshooting complex infrastructure. Known for bridging design, development, and business needs while keeping projects moving.
A young entrepreneur asked me to help him finalize an educational and practical email security application.
The application is powered by open source LLM models (AI) and openAI API. Developed using frontend in React and a backend in Node.js/express.
A B2B marketplace startup in construction aiming to optimize the supply chain.
Application built using React, NextJS with a mongodb database.
Led and mentored three trainees, developing leadership and agile team skills.
Built realtime microservices (Node/Express/WebSockets) for client notifications.
A booking system for clubs/restaurants, handling gig invitations via SMS and app notifications.
The application has a custom interactive calendar showing the users bookings and some metadata to make planning the owners events easier.
Svenskaalarm needed to get out of their current deal for support and development and wanted me to take over. Since then we have been building new functionality and monitoring servers to make sure everything is always online.
Charlotte needed her startpage freshened up with better video and sound interaction and we also made some goodlooking design elements for her posts. Now on a page about a performance she can present some metadata like credits and reviews in a more professional way.
The theater galeasen.se still quite regularly ask me for something now since 2011, like changing their supplier of tickets and the integration of their API.
A number of E-commerce shops built using woocommerce. We built Tools for managing stock between the different storefronts, migrated data to other sites that sell the same things and make alot of frontend improvements.
Together with Another company that arranged the happening in Stockholm Central station where they put up a giant block of ice with a mobile Telephone inside and the public could guess on when it would hit the ground after all the ide had melted away.
I made a video-stream and a quiz the public had to answer and then get a chance to guess on the time the mobile would hit the ground. The results were posted to a google Sheets API backend.
Trupayers needed to update their sites API integrations to work with the the latest version of the credit check API.
Their forms needed some new fields so we took the chance to make sure they are accessible with good user feedback and data is validated both on the frontend and before sending it off with cURL.
The solution is built into a wordpress plugin and distributed to their partner-sites through a wordpress theme on gitlab.
Built a platform where visitors could vote weekly, answer quizzes, and earn points for rewards.
Helped team scope technical possibilities, developed React frontend + Node backend.
Collaborated with an international dev team.
För att snabbare kunna lansera webbplatser åt nya skolor som Academedia förvärvade byggde Pär och en kollega en Wordpress-mall där designen individualiserades genom olika settings i wp-admin. Pär ansvarade för att ta fram ett system där en administratör på skolan kunde skapa och konfigurera formulär som sedan genom kopplingar till olika CRM-system kunde användas i kampanjer för att värva nya elever till Academedias skolor. Formulären är centrala för Academedias verksamhet då just många av deras blivande elever hittar sin skola via dem. Pär tog ansvar för att se till så att formulären var tillgänglighetsanpassade enligt WCAG.
Apart from taking the first steps starting up academedias inhouse development and maintaining their old wordpress-installations we built a base-theme for quickly launching new sites.
Updated 100+ WordPress sites to meet WCAG accessibility and GDPR standards.
Built form-builder WordPress theme with CRM integrations, central to student recruitment.
The Williams Syndrome Association is a non-profit patient organization that works to provide people with Williams Syndrome and their families with meeting places, support, and knowledge. They also conduct advocacy work, for example through membership in the Swedish National Association for Rare Diagnoses and the European Federation of Williams Syndrome.
https://williamssyndrom.se
Built a React-based quiz suggesting study paths based on answers.
Checheza aims to help children around the world where access to school and education is difficult; it is a collection of games primarily focused on teaching reading and math.
Pär built three games: one math game using a number line to provide answers to problems, one to help children learn to write letters, and one for learning to count.
Built custom WordPress themes and functionality, campaigns, shopping cart, and recommended products for multiple clients including freeskiers, lösullsentreprenörerna, flic.io, and sthlm-bike.
For Halfenklubben, Pär built a platform where a salesperson can create and share a "desktop"—a clone of Trello's columns—with selected customers, providing information relevant to each customer's case.
The frontend was built in React with a Node / Express / MongoDB backend.
The site needed to be migrated from a custom CMS (PHP/SQL), and the parts Pär migrated were an archive of performances and the people involved in them.
Everything was converted into the WordPress environment as custom fields and post types, and the rest of the site was built around this as a WP theme with templates and dynamic components.
Built Meteor.js real-time app for NGO fundraising recruiters.
Built and maintained dozens of PHP web scrapers in Node-managed system.
Debugged failures and handled regex-heavy parsing.
During this period, Pär worked with a variety of clients who needed help with their websites. Initially, he built a range of custom CMS solutions in PHP/SQL, later focusing more on WordPress.
Clients included:
Glimstedt.se
r-evolve.se
niklasengvall.se
davinci.se
Lindqvistbygg.se
Seraphimsecurity.com
Brommahudhalsa.se
Ericabasnicki.com
Pm3.se
Annas.se
Gunnars.se
Julbordsmaklarna.se
stockholmbk.se.