01 / SOFTWARE
Full-stack product engineering
PHP, Laravel, Symfony, React, TypeScript, Vue, Node.js and Python — APIs, interfaces, integrations and legacy modernization.
PHPReactTypeScriptLaravelNode.jsPython
ZOLTAN_OS 15.0
full-stack · cloud · AI · production
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SELECTED SYSTEMS / 02
Built, shipped and operated.
Real production screenshots. Click a project for the technical story.
360° ENGINEERING / 03
Not one layer. The whole delivery chain.
Application code, interfaces, infrastructure, automation, AI and acquisition.
02 / PLATFORM
Cloud & production infrastructure
DigitalOcean and AWS, Linux, Docker, Nginx, CI/CD, TLS, monitoring, deployment gates and rollback-aware production delivery.
DigitalOceanAWSDockerLinuxNginxGitHub Actions
03 / INTELLIGENCE
AI-assisted development
AI is part of the engineering workflow: Codex-style development, local Ollama models, agent-oriented tooling, automation and retrieval-driven experiments.
OllamaLocal LLMAgentsRAGCodexAutomation
04 / GROWTH
Marketing technology
Google Ads landing pages, consent-aware conversion tracking, campaign sites, SEO, PageSpeed and measurement built into the delivery process.
Google AdsConsentTrackingSEOPageSpeedLanding pages
ENTERPRISE DELIVERY / 04
From global companies to public institutions.
Selected engagements where scale, integration, governance or infrastructure mattered.
Cybersecurity governance, NIS2/CRA/TISAX readiness, evidence management and C-level risk reporting.
API-first platform modernization with 20+ authentication, payment and ticketing integrations.
EU-scale enterprise web delivery in a multinational public-sector environment in Brussels.
Senior team lead / lead PHP delivery across web, mobile, integrations and cloud-backed enterprise products.
Employee application with headless architecture, React Native, SSO and scalable AWS infrastructure.
Enterprise product delivery as part of the London BREAD engagement.
DELIVERY FOOTPRINT / 05
Projects without one timezone.
A schematic view of places connected to long-running projects, teams and client delivery.
USANorth America
EUROPEEurope
Seattle, WAChicagoKentuckyLondonBrusselsGhentSwitzerlandKyiv