Zoltán Horváth

Senior Full-Stack Engineer · Technical Lead · Cloud & Infrastructure · AI-Assisted Development

Göd, Hungary
zolika42@gmail.com
+36 70 508 4100
linkedin.com/in/sunnygambino
github.com/zolika42

Professional summary

Senior full-stack engineer and technical lead with 15+ years spanning PHP application development, modern frontend engineering, cloud infrastructure, CI/CD and production operations. Experienced in modernizing legacy platforms without breaking live business processes, building React/TypeScript and Vue interfaces, operating Linux/Docker environments on DigitalOcean and AWS, and designing repeatable QA/deployment workflows. AI-assisted engineering, local Ollama workflows and agent-oriented tooling are a growing part of the development stack. Strong enterprise background across commerce, insurance, cinema, energy, automotive cybersecurity and EU public-sector environments.

Core competencies

Backend & architecture: PHP 5.6–8.4, Laravel, Symfony, Drupal 5–11, Node.js, Python, FastAPI, REST/OpenAPI

Frontend & product: JavaScript, TypeScript, React, Vue, React Native, Vite, HTML/CSS, PWA

Cloud & infrastructure: DigitalOcean, AWS, Linux, Docker/Docker Compose, Nginx, Apache, RDS, Elastic Beanstalk, load balancing, auto scaling

Delivery & quality: GitHub Actions, Make, PR quality gates, smoke/regression tests, PageSpeed/Lighthouse, release/rollback automation

AI & automation: AI-assisted engineering, ChatGPT/Codex, Gemini, Ollama/local-model workflows, agent/RAG prototyping, Zapier/API automation

Marketing technology: Google Ads landing pages, consent-aware conversion tracking, SEO, campaign measurement and performance-focused static delivery

Professional experience

11/2025 — Present

Tata Consultancy Services (TCS) Hungary

Senior Drupal Developer · Budapest

Develop and maintain Europ Assistance production web platforms and execute controlled application upgrades.
Prepare Change Requests, validation and rollback plans, present changes at CAB meetings and lead production deployments.
Own day-to-day application support, production incident resolution, stakeholder communication and technical delivery.

PHP · Drupal 10–11 · legacy modernization · CR/CAB · production deployment · release governance

01/2011 — Present

Columbia Games

Technical Lead / Senior Full-Stack & Infrastructure Engineer · Remote

Own modernization across commerce, WordPress, infrastructure, security, data and production operations.
Architected CCM v2: a native PHP API with React/TypeScript/Vite storefront and administration backed by PostgreSQL, replacing a Perl-era commerce architecture while preserving legacy data compatibility.
Built payments, digital entitlements/downloads, PDF stamping, migrations and operational admin tooling.
Operate DigitalOcean/Linux/Nginx/Docker infrastructure with PR-gated CI/CD, smoke tests, security hardening and rollback workflows.

PHP · React · TypeScript · PostgreSQL · WordPress · Docker · Nginx · GitHub Actions · DigitalOcean

01/2026 — 07/2026

Valeo

Cybersecurity Governance & NIS2 Audit-Readiness · Contractor

Supported CISO-level governance, audit evidence, remediation readiness, risk/KPI reporting and executive decision support.
Worked across NIS2, CRA, TISAX/ENX, supplier security, access lifecycle, business continuity and technical evidence management.

NIS2 · CRA · TISAX/ENX · SIEM/Splunk · Qualys · Trellix · Cortex · executive reporting

01/2024 — 01/2025

ACEG BV

Senior Developer · Contractor · Brussels

Built a Laravel + Vue self-service / ServiceDesk platform integrating ClickUp and Jira, with order management, API workflows, Zapier automation and AI-backed functionality.

Laravel · Vue.js · Jira · ClickUp · Zapier · API integration · AI backend

01/2022 — 01/2025

Kinepolis Group NV

Senior Developer · Contractor · Ghent

Worked on API-first modernization and enterprise integration, connecting more than 20 authentication, payment and ticketing services while maintaining interoperability with existing production systems.

PHP · APIs · authentication · payments · ticketing · enterprise integration

01/2019 — 09/2019

European Commission — DIGIT

Senior Developer · Contractor · Brussels

Contributed to EU-scale enterprise web platforms in a multinational public-sector environment.

PHP · Drupal · enterprise web platforms · international delivery

09/2015 — 09/2021

BREAD Creative

Senior Team Lead / Lead PHP Developer · London

Delivered enterprise web/mobile products including ENGIE Communicator and CompanyApp work.
Built headless application architecture, React Native clients, SSO, integrations and Linux-backed PHP platforms.
Designed and operated AWS infrastructure using RDS, Elastic Beanstalk, load balancing and auto scaling.

PHP · React Native · Node.js · SSO · AWS · Linux · enterprise product delivery

Selected systems

KampányMűvek

Own static-first marketing engine for landing pages and campaign sites with generators, multilingual content/CTA handling, consent-aware Google Ads tracking, deterministic QA, versioned engine upgrades and live deployment checks.

Columbia Games · CCM v2

Modern PHP + React/TypeScript commerce platform replacing a roughly twenty-year-old Perl-era system while preserving legacy production data and business behavior.

Columbia Games · WordPress

Staged modernization of a legacy WordPress/PHP estate covering core/runtime upgrades, plugins/themes, caching, cron, redirects, security and performance.

The Last Spike Online

React 19 / TypeScript multiplayer board-game platform with deterministic game engine, authoritative WebSockets, PWA/Capacitor foundations, Docker and GitHub Actions.

Gödi Sittes + CRM

Custom-designed KampányMűvek acquisition site paired with a Node/PostgreSQL PWA operations CRM using Google OAuth and Calendar integration.

madmasel.hu

Automotive campaign website on KampányMűvek with consent-aware Google Ads conversion tracking and a short lead-generation flow.

Education & certifications

Bachelor Degree — Computer Technologies, Programming Techniques & Algorithms · College of Nyíregyháza · 2008

CCNA Exploration — Networking & LAN/WAN Management · Cisco Academy · 2012–2013