Senior Full Stack Developer

Balázs Györkös

SaaS Architect • API & Integration Specialist • AI-Native Developer

Web-based software developer since 2000 with deep experience in business applications, SaaS platforms, APIs, integrations and production systems. Strong Laravel, Vue, PostgreSQL and Docker background, recently focused on AI-assisted engineering, LLM integrations and agentic development workflows.

Pécs, Hungary +36 20 317 9016 balazs.gyorkos@gmail.com linkedin.com/in/defji Remote / Freelance / Contract

Selected Independent Projects

Multi-tenant customer engagement platform

Designed and developed a SaaS platform for independent business tenants, including loyalty workflows, customer management, rewards and commerce/payment integrations.

  • Laravel, Vue 3, PostgreSQL, Docker
  • Multi-schema tenant architecture
  • Stripe billing, OAuth2, webhooks
  • Shopify and e-commerce integrations

AI-assisted business automation platform

Building a workflow-oriented platform focused on quotation generation, document automation and AI-assisted business processes.

  • LLM integrations and prompt design
  • Agent-based workflow orchestration
  • Document generation and automation
  • Laravel, Vue 3, PostgreSQL

Professional Experience

CTO — Poppyfy Ltd

2024–present • Remote

Leading the company's technical strategy and product architecture end to end — from system design and stack decisions through implementation, integrations and delivery, with a strong focus on AI-native, agentic development workflows.

Software Developer — Europ Assistance Hungary

2020–2023 • Budapest / Remote

Built API integrations between insurance systems using REST and SOAP interfaces. Developed public and intranet applications, refactored legacy codebases and supported internal departments with production systems.

Senior Developer — W5labs

2019–2020 • Pécs

Developed PHP backends mainly with Laravel, Lumen and Phalcon. Built Vue.js frontends and introduced CI/CD workflows for Laravel applications.

Software Developer — Multi Alarm

2013–2019 • Pécs

Developed a robust fleet tracking application with PHP, CodeIgniter, PostgreSQL and JavaScript/Kendo UI. Worked on backend, frontend and deployment automation.

PHP Developer — Multiple Companies

2000–2013 • Pécs / Budapest

Built custom websites, business applications, SQL reports and internal systems using PHP, MySQL, JavaScript and CSS.

Strengths

  • Designing pragmatic, production-ready SaaS architectures.
  • Connecting APIs, webhooks, payment systems, CRMs and third-party services.
  • Modernizing legacy PHP systems while keeping business continuity.
  • Using AI tools and coding agents to accelerate development without sacrificing reliability.
  • Working independently from product idea through architecture, implementation, deployment and maintenance.