Hire the Best PHPUnit Developers
in Poland

Hello, My name is Rafal, and I’m a senior back-end developer from Poland with over 15 years of experience in PHP and business application development. I design scalable, testable systems — including custom CRMs, integrations, and high-performance reporting tools. Recent work includes: - Custom CRM using raw OOP PHP with Symfony components: price matrices, scheduling, permissions, invoices, Stripe/Twilio integrations - Laravel-based CRM for the US financial industry with large-scale reporting (millions of records daily), acquired by NMI I’m open to long-term collaborations, available in your time zone, and comfortable working in international teams. I’ve successfully collaborated with clients from the US, Germany, and Australia for over a decade. Technical skills: - PHP (Expert): Raw OOP PHP, design patterns, scalable architectures - Frameworks (Expert): Symfony, Laravel, CodeIgniter - Testing (Expert): Unit tests, integration tests, TDD/BDD, debugger - Databases: MySQL (Expert), PostgreSQL (Intermediate) - DevOps: Docker (Expert) - Front-end (Expert): JavaScript, jQuery, CSS - Java (Intermediate), Spring (Intermediate) - Python (Intermediate): AI modeling with TensorFlow, Scikit-learn, NumPy, Keras - 3rd Party Integrations: Twilio (SMS), Mailgun and Mandrill (Email), Stripe (Payments) Education: Master of Arts in Marketing – Silesian University of Technology, Poland IT Engineering – Silesian University of Technology, Poland Best regards, Rafal

Software development expert with ~20 years of experience, excellent analytical and problem-solving skills. (you are welcome to scroll my reviews to last page and see first reviews dated 2004) Technology stack: - PHP: Symfony, Laravel, Zend frameworks, API Platform, Doctrine, Eloquent - JS/TS/ES: Vue, React, Angular, Node, Alpine, Inertia, Livewire, Tailwind - Python: Django, Flask, Chat/GPT/OpenAI - DB: MySQL, Postgres, Mongo - RabbitMQ, Redis, ElasticSearch, Memcached - Git, Jira, Bitbucket, Redmine - Docker, Linux administration - AWS services, Websockets, JWT, OAuth2, Firebase - TDD, BDD, PHPUnit - Experience with LinkedIn, Google, Facebook APIs You are welcome to check my lifetime work history and feedback to see proofs of my expertise.

¸¸♬·¯·♪·¯·♫¸¸ 𝗪𝗲𝗹𝗰𝗼𝗺𝗲 𝘁𝗼 𝗺𝘆 𝗽𝗿𝗼𝗳𝗶𝗹𝗲! ¸¸♫·¯·♪¸♩·¯·♬¸¸ I'm a Senior EdTech Developer and Online Course Specialist. I bridge the gap between educational content and powerful tech infrastructure, helping creators, schools, and enterprises launch, scale, and monetize world-class online courses. Whether you need a custom-coded ecosystem or want to maximize all-in-one SaaS platforms, I specialize in matching your learning design with the perfect technical implementation across Moodle, LearnWorlds, Kajabi, Canvas, LearnDash, and TutorLMS. ⚡ 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 1. Moodle LMS Development & Administration Certified Moodle professional handling core setups, version upgrades (including Moodle 5.x), and high-performance cloud deployments. ◾ Custom Development: Custom block/local plugins, theme customization, advanced gradebook setups, and enrollment automation. ◾ Integrations & Hosting: AWS EC2/VPS deployment, BigBlueButton/Zoom virtual classrooms, SSO (OAuth, SAML), and AI-driven features (automated quiz generation, multi-language translation via DeepL). 2. Online Course Platforms & Marketing Funnels (LearnWorlds & Kajabi) Building high-converting, beautiful, and engaging course storefronts and student dashboards. ◾ Course Architecture: Structuring modules, setting up interactive video players, building drip-feed schedules, and configuring student communities. ◾ Funnel & Sales Setup: High-converting landing pages, checkout flows, bump offers, upsells, and automated email sequences (Kajabi pipelines). ◾ Custom Adjustments: Injecting custom HTML/CSS/JS to bypass SaaS limitations, setting up custom domains, and configuring advanced webhooks. 3. WordPress & Academic LMS Platforms (TutorLMS, Canvas, LearnDash) Transforming standard websites into full-scale, premium academy platforms and managing heavy-duty academic learning ecosystems. ◾ TutorLMS & LearnDash: Deep customization utilizing custom hooks, REST APIs, and seamless BuddyBoss community integrations. ◾ Canvas & Academic Dev: Course migration, Canvas catalog management, custom reporting, and LTI tool integrations. ◾ E-Commerce & Subscriptions: Advanced checkout systems using WooCommerce, Stripe Connect, MemberPress, and multi-currency subscription billing. 4. Advanced EdTech & AI Integrations I build scalable Laravel/PHP backends with REST APIs, OpenAI integrations, Stripe billing, and marketplace platforms for 100,000+ records - powered by Redis, Elasticsearch, and full AWS infrastructure. ◾ eLearning Standards: Full implementation of SCORM, xAPI (Tin Can), H5P interactive content, and gamification mechanics. ◾ AI Pedagogical Tools: Building custom OpenAI-powered AI tutors, automated evaluation systems, and smart course content generators embedded right into your LMS. ⚡ 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 𝐈 𝐇𝐚𝐯𝐞 𝐌𝐚𝐬𝐭𝐞𝐫𝐞𝐝 - 𝗟𝗠𝗦: LearnDash, Moodle, LifterLMS, Tutor LMS, Masteriyo, MemberPress, BuddyBoss, Kajabi, LearnWorlds, H5P, SCORM, xAPI - 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀: Custom plugins, theme dev, Elementor, Gutenberg, ACF, CPT UI, WooCommerce, multisite - 𝗣𝗛𝗣: Laravel, CodeIgniter, Symfony, Core PHP, Composer, OOP, cURL, cron jobs - 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React.js, Next.js, Vue.js, Nuxt.js, TypeScript, jQuery, Tailwind, Bootstrap, SASS - 𝗔𝗣𝗜𝘀: REST, GraphQL, Webhooks, OpenAI, Stripe, PayPal, Twilio, Mailchimp, FluentCRM, Zoom, BigBlueButton, Google/LinkedIn OAuth - 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, PostgreSQL, MongoDB, Redis, Eloquent ORM - 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: AWS (EC2, S3, CloudFront, RDS), DigitalOcean, Docker, Cloudflare, Git, CI/CD - 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 & 𝗦𝗘𝗢: SSL, Wordfence, malware removal, Rank Math, Core Web Vitals, schema markup ⚡ 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸: I'm hired for LMS builds, plugin architecture, system integrations, and taking complex eLearning requirements from concept to production. I prioritize clean code, scalable DB design, security hardening, and zero-downtime delivery, critical for platforms handling thousands of active students and real-time course data. ⚡ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: ✔️ LMS platforms built to scale - from 10 to 10,000+ students without breaking ✔️ AI integrations that actually work in production - OpenAI, DeepL, MCQ generation ✔️ Custom plugins with audit-grade code, PHPUnit tests, and zero third-party bloat ✔️ Malware removal, security hardening, and DB migrations with zero data loss ✔️ Clear communication, milestone-based delivery, and on-time completion 👉 𝗖𝗹𝗶𝗰𝗸 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 - 𝗹𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸.

It is all about optimal solutions based on good communication. As a programmer with over 14 years of commercial experience, I offer both and complete work to the highest standards. My goal is to grow as a programmer. Constantly.

I'm a Senior Full-Stack Developer with strong backend experience in Laravel and a working knowledge of DevOps and frontend. I specialize in building APIs, integrating services, and deploying stable applications. My strength is in delivering complete solutions - from database to deployment. Currently open for part-time work (20 hrs/week) – especially backend-heavy roles that may include frontend or DevOps involvement. Skills & Technologies: Laravel, PHP 8, MySQL, MongoDB, RESTful APIs, PHPUnit, Docker, CI/CD, AWS, Terraform, Git, HTML/CSS, Cloudflare, Elasticsearch, Microservices.

I am a PHP developer with four years of specialized experience in e-commerce, particularly with Shopware 6. My expertise extends to building scalable systems and automating processes using Symfony and Laravel, while also integrating basic frontend development with Vue.js. I focus on delivering high-quality work by implementing thorough testing strategies with PHPUnit and optimizing backend systems for performance. My approach combines a strong technical foundation with analytical skills to understand and meet client needs effectively. Additionally, I leverage various AI models to enhance my development processes. If you need a reliable developer who can bring your project to life with efficiency and precision, let's discuss how I can add value to your team.