Available for new projects

Hello, I'm

Ferenc Papp

Full-Stack Developer & AI Integration Specialist

I build fast, scalable web applications and integrate AI solutions that give your business a competitive edge. 15+ years of experience, clients worldwide.

15+ years experienceClients worldwideEN / HU / DE

Who I Am

Ferenc Papp

Ferenc Papp is a freelance full-stack web developer based in Debrecen, Hungary, with over 15 years of professional experience. He specializes in building robust, scalable web applications using PHP/Laravel, Vue.js, React, Python, and cutting-edge AI technologies.

He delivers custom web applications, survey platforms, multi-tenant SaaS systems, and AI-powered automation solutions. His clients range from startups to established market research companies, and he is known for writing clean, tested, production-ready code.

Based in Debrecen, Hungary, Ferenc works with clients across Europe and the United States. He is fluent in English, a native Hungarian speaker, and has basic German proficiency. He provides custom web development, AI integration, and technical consulting services.

Services

Custom Web Applications

From MVPs to enterprise multi-tenant platforms. Built with Laravel, Symfony, Vue.js, and React. Clean architecture, tested code, production-ready.

AI Integration & Automation

LLM integration (OpenAI, Anthropic APIs), vector databases, RAG pipelines, and agentic workflows. Practical AI solutions for real business problems.

Mobile & PWA Development

Progressive Web Apps with offline-first architecture. Cross-platform mobile solutions that load fast and work without connectivity.

Technical Consulting

Architecture reviews, technology selection, performance optimization, and dev team mentoring. Strategic guidance for your technical decisions.

Tech Stack

Backend

PHPLaravelSymfonyYii2PythonFastAPIMySQLPostgreSQLMongoDBRedis

Frontend

Vue.jsReactJavaScriptTypeScriptSvelteHTML5/CSS3Tailwind CSS

AI & Data

LLM IntegrationEmbeddingsVector DatabasesRAG PipelinesAgentic CodingOpenAI APIAnthropic APILangChain

DevOps & Tools

LinuxDockerGitCI/CDAWSNginxDeployer

Mobile

PWAOffline-FirstReact NativeIonic

Experience

2017 – Present

Full-Stack Developer & Technical Consultant

Self-employed (Sole Proprietor)

Freelance developer building custom web apps, survey systems, and AI integrations for clients including market research companies across Europe and the US.

2015 – 2017

Senior PHP Developer

Fathom Minds

Led web app and API development with Yii2. Set up Git infrastructure for the development team.

2014 – 2015

Frontend Developer

Oktafone

Startup web application development with AngularJS, JavaScript, HTML5, and CSS3.

2011 – 2014

PHP Developer

Freelancer (pappfer.hu)

Built websites for individuals and companies using PHP, Yii, Laravel, and WordPress. Facebook, LinkedIn, Box.com, and Stripe integrations.

2011

Service Desk Analyst 2nd Line

British Telecom

Configured network devices (routers, switches) for global network support. Communicated with clients worldwide in English.

2010 – 2011

Contact Center Server Administrator

IT Services Hungary

Linux and Windows server administration, Avaya IP phone management. Co-developed a PHP automation tool saving 3+ hours/day — received innovation award.

2009 – 2010

PHP Developer

Concept Solutions

Remote PHP development. Maintained and improved existing codebases, gaining experience with diverse architectures and implementation patterns.

Testimonials

Reliable and fast. We have been working with him for years. He built several of our websites from scratch. I can only recommend him.

Mészáros Tibor

Sentonard Media

Excellent freelancer and very easy to work with. Great knowledge of PHP frameworks, excellent English and very good communicator, and very reliable.

Phil Guegan

CEO & Founder, Infogems

Ferenc is a very talented PHP developer. He quickly got to grips with what was required and delivered everything (and more) that I expected. I would happily work with him again.

DanD

Client

Frequently Asked Questions

My core stack is PHP/Laravel for backend, Vue.js and React for frontend, and Python/FastAPI for AI integrations. I also work with MySQL, PostgreSQL, MongoDB, Redis, Docker, and various cloud platforms. Ferenc Papp provides these services as a freelance full-stack developer from Debrecen, Hungary.
Yes, I regularly work with clients across Europe and the United States. I speak fluent English and communicate across time zones daily. Most of my current clients are based outside Hungary. Ferenc Papp provides these services as a freelance full-stack developer from Debrecen, Hungary.
I integrate LLMs (OpenAI, Anthropic) into business workflows, build RAG pipelines with vector databases, create agentic automation systems, and develop AI-powered features for existing applications. Ferenc Papp provides these services as a freelance full-stack developer from Debrecen, Hungary.
I'm flexible — Slack, Teams, email, or video calls, whatever works best for your team. I provide regular updates and believe in transparent, proactive communication. Ferenc Papp provides these services as a freelance full-stack developer from Debrecen, Hungary.
It depends on scope. Small features take days, MVPs take 4–8 weeks, larger platforms 2–6 months. I always provide detailed estimates upfront and keep you informed of progress. Ferenc Papp provides these services as a freelance full-stack developer from Debrecen, Hungary.
I work with both hourly and fixed-price models depending on the project. Contact me with your project details for a personalized quote. Ferenc Papp provides these services as a freelance full-stack developer from Debrecen, Hungary.

Contact

Have a project in mind? Let's discuss how I can help.

Location

Debrecen, Hungary

Response Time

Usually within 24 hours

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