Perlat P. Kociaj
Senior Full-Stack Developer & Web Consultant — 14+ years, 250+ websites, 100+ clients.
Available immediately — no notice period.
Full UK right to work.
Contracting via own Ltd (Felix Web Solutions).
Professional Summary
Senior full-stack developer, WordPress specialist and web consultant with 14+ years delivering high-performance web applications and websites for brands including Nivea, Samsung and Shake Shack. Built 250+ websites for 100+ clients across a wide range of industries, with a performance-first engineering approach and a strong track record in custom WordPress theme & plugin development, bespoke web applications and process-automation tooling. Deep, hands-on expertise across WordPress (traditional & headless), PHP/Laravel, JavaScript/React/Vue.js and Docker-based DevOps.
Key Achievements
250+ websites delivered for 100+ clients across multiple industries, shipped to production with a performance-first approach.
Cut page load times from 10–15 seconds to under 2 seconds on legacy sites through targeted performance optimisation.
Raised Google Lighthouse scores from the red zone (20–25) to 96+ (green) across numerous rebuilds.
Built internal tools and automation that reduced multi-day manual processes to minutes or hours.
Engineered an AI-powered desktop app for Samsung automating UX/UI compliance testing across their web estate with a local LLM.
Professional Experience
Technical Lead & Full-Stack Developer · The Covalent Bond
- Lead developer building and optimising web applications for enterprise clients.
- Co-built an AI-powered desktop app for Samsung's internal team automating UX/UI & compliance testing: crawls Samsung's flagship-product sites, analyses each page with a local LLM, and generates visual reports with screenshots and Excel export — cutting a multi-day review to hours.
- Manage and performance-optimise live sites for major brands including Shake Shack UK and a children's cancer charity.
Director & Principal Consultant · Felix Web Solutions (own Ltd)
- Founder and director of the UK limited company through which I deliver contract and consultancy engagements.
- Designed, built and launched my own SaaS products end-to-end — architecture, full-stack development, deployment and ongoing maintenance.
- Engaged as technical consultant and lead developer for a client's SaaS soundtrack-creation platform for filmmakers — built the web application, packaged it as an Adobe Premiere Pro extension, and architected the supporting AWS infrastructure (CDN, authentication and licensing).
- White-label development partner to several UK web agencies — delivering custom WordPress builds, full-stack development and ongoing site support and maintenance on their behalf.
- Provide senior full-stack development, WordPress theme/plugin development, performance optimisation and technical consulting to clients across industries.
Web Consultant · Able Web Services
- Built, maintained and upgraded 90+ client websites, keeping them secure, current and performant.
- Developed a bespoke CRM and licensing-management platform for a global leader in commercial broadcast teleprompter systems — streamlining customer, product and licence administration.
- Advised clients on web architecture, performance and best practice across WordPress and custom PHP/Laravel builds.
Full-Stack Developer · atom42
- Built websites and landing pages for Samsung UK flagship product launches, including the launch of Samsung's wireless earbuds.
- Developed an interactive skincare-analysis web app for Nivea UK: a guided questionnaire plus optional camera-based facial analysis (detecting traits such as dryness and oiliness) producing a personalised product-recommendation report emailed to the user — building Nivea a pre-qualified subscriber list for targeted marketing.
- Delivered bespoke WordPress sites and custom Laravel applications with SEO and performance built in; contributed to the agency portfolio and CI workflow.
Web Developer · Staxoweb
- Built bespoke, high-performance WordPress websites for clients, with SEO and page speed prioritised from the outset.
- Developed and maintained custom web applications in PHP/Laravel, working within a Vue.js, Docker and Gulp toolchain.
- Contributed to the company's own portfolio and product work and helped establish continuous-integration workflows across the team.
Freelance Web Developer · Self-Employed
- Deliver custom WordPress websites and bespoke web applications directly for clients across multiple industries, owning each project end-to-end from scoping and design through build, launch and ongoing support.
- Redesigned an outdated business site into a fast, SEO-optimised WordPress build that went on to attract 10,000+ Google Maps searches.
- Built a multilingual website that expanded a client's international reach, driving a marked increase in overseas visitors and enquiries.
- Act as sole developer and technical point of contact — handling hosting, performance, security, maintenance and direct client communication.
Web Developer (Internship) · OMEGA Systems
- University placement building modern websites and web apps; developed an internal PHP/MySQL application to manage customers and purchases.
Technical Skills
WordPress
Languages & Frameworks
Backend & Data
DevOps & Cloud
Performance & Quality
Education
BSc Informatics Engineering (Software Engineering)
Technological Educational Institute of Western Macedonia
Erasmus Programme, Informatics
Universidade de Trás-os-Montes e Alto Douro, Portugal
Languages
Looking for a seniorfull-stack developer?
Available immediately for contract and consultancy work. Let's talk about your project.