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Hi, I’m Hasan Gültekin

Software engineer and systems architect. I design, build and run production systems end to end: e-commerce platforms, automation pipelines and, lately, LLM platforms.

  • 15+years of engineering
  • 50+client e-commerce and web systems
  • 3own products I have built
Hasan Gültekin

Profile

Hi, I’m Hasan Gültekin — a software engineer and systems architect with over 15 years of hands-on experience in web technologies, marketing automation, and technical optimization.

My journey into tech began in the early 2000s, when a 56k modem connected me to a world I’ve never stopped exploring. Since then, I’ve built a career that bridges the gap between technology and marketing, turning complex systems into high-performing digital experiences.

Throughout my career, I’ve worked across a wide range of disciplines including:

  • Web development & infrastructure (Magento, WordPress, WooCommerce, Opencart)

  • Digital marketing & CRO (SEO, Google Ads, Mailchimp, Meta Ads)

  • Automation & analytics (GA4, GTM, Marketo, custom-built journey systems)

  • Programming & technical implementation (PHP, JavaScript, HTML/CSS)

  • DevOps & performance optimization (Linux server tuning, caching, CDN, GTMetrix/Core Web Vitals)

I take pride in building scalable systems that not only function well—but also convert better. Whether it’s optimizing a Magento checkout flow, designing automation in Marketo, or improving funnel tracking with GA4, I approach every challenge with a solution-oriented mindset.

I also use this blog as a space to share insights and practical frameworks—especially around topics like:

  • Conversion optimization

  • Technical SEO

  • E-commerce infrastructure

  • Custom journey builders

  • Email automation and lead nurturing

I believe that technology, when used with intention and clarity, unlocks limitless possibilities—not just for businesses, but for people. I’m here to make the complex understandable, and the digital world more human.

If you’re curious about how I approach digital problem-solving—or looking for support on your next project—I’d love to hear from you.

What I do

  • AI and LLM engineering

    Multi-provider model routing with fallback, token budgets and cost control; RAG pipelines on Qdrant with source attribution; agents with tool use and structured output; prompt versioning and output evaluation.

    AI assistants for support and commerce

  • Client platforms

    More than 50 e-commerce and web systems on WordPress, WooCommerce, Magento 2 and Shopify, with custom plugins, Stripe and iyzico payments and API integrations.

    Magento 2 and Hyvä

  • Analytics and growth

    GA4, Google Tag Manager and Matomo with server-side tagging, attribution and GDPR-compliant consent; lifecycle automation and lead scoring in HubSpot, Mailchimp and Adobe Marketo; A/B tests, funnel analysis and checkout work.

    Conversion optimisation

  • Automation and infrastructure

    n8n pipelines for LLM calls, CRM sync and email; Docker, CapRover, Nginx and CI/CD with zero-downtime releases; hardened Linux servers with automated backups; Redis and Varnish caching for high-traffic stores.

    Servers, virtualisation and backups

Products I build

  • useconviro.com

    Conviro

    AI customer-support platform. Web chat, WhatsApp and Instagram in one inbox, with retrieval, answer validation and handoff to a person.

  • convergepilot.com

    ConvergePilot

    Turns an expert's working method into executable workflows a team can run and improve.

    Multi-model LLM integration, provider routing per subscription with usage analytics, checklists and audits for 13 industries. Built alone on Python, Next.js, TypeScript, PostgreSQL and Docker.

  • pvfirms.com

    PVFirms

    Directory of solar companies (installers, manufacturers, EPC contractors and distributors) across 42 countries, in 33 languages.

    Laravel backend, Node.js services and PostgreSQL; content pipelines with n8n and GPT-4o; an i18n framework with 1,600+ keys, the SEO infrastructure and Nginx routing. Sole developer.

How I work

I own a project's whole stack as its single senior engineer, from the architecture to production and the maintenance after it. Collaboration is written and asynchronous first, with teams in European and US time zones.

Services are provided by Wizutech OÜ, a company registered in Estonia, to clients in the European Union and other countries, and by Wizutech Teknoloji, a company registered in Türkiye, to clients in Türkiye. The contracting entity is determined by the client's location and the applicable regulations and is named in the proposal; contract, invoicing, VAT and governing law follow that entity. The work is carried out by Hasan Gültekin in both cases.

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