10/26/2026 updated
KK
100 % available
Full-Stack & Platform Engineer | Founder | SaaS & AI Products
Netherlands
Only remote
Self-taught engineer. Founded my first company at 16; 10+ years building production systems hands-onTailwind CSSJavaScriptPHPHTML5LAMP StackBash ShellUbuntu (Operating System)Cascading Style Sheets (CSS)CGI ScriptingCloud EngineeringDebian LinuxLinuxDjangoPython (Programming Language)PostgreSQL
Platform & Infrastructure Engineering
Expertise in hosting platforms, control panels, deployment pipelines, Linux and LiteSpeed servers, domain management, Docker, MicroVMs, multi-tenant isolation built from scratch using Linux namespaces, cgroups, storage and process isolation.
Backend & API Development
Proficiency in Python/Django and Go services, REST API design, CLI tooling, job queues, webhooks, parallel processing, Node.js, Bytenode, and command-line tools built for both humans and AI agents.
AI in Production
Hands-on experience with Anthropic API (Claude) and LLM features in production environments, including AI pricing assistants, AI web generation, and AI incident updates.
Frontend Development
Strong command of React, Next.js, Tailwind CSS, Smarty, responsive and accessible UI design, WordPress architecture with reusable parent themes and custom plugins.
Security & Authentication
Server and application hardening, ModSecurity (WAF), TOTP two-factor authentication, passwordless login, API tokens, HMAC-signed webhooks, payload encryption, rate limiting, incident response and recovery of compromised or broken systems.
Product & Growth Engineering
Pricing engines, Stripe payments (cards, iDEAL, webhooks), client portals, cookie-free A/B testing, conversion funnels, attribution, technical SEO, multilingual sites (i18n, hreflang), privacy-by-design analytics.
Databases & Caching
Experience with PostgreSQL, MySQL, Redis, and Memcached for production-grade data storage and caching solutions.
Cloud & Edge
Deployment and management on AWS, Google Cloud, and Cloudflare Workers (Wrangler) for scalable and distributed systems.
Web Servers
Configuration and management of LiteSpeed (LSWS), Apache, Nginx, Caddy, and reverse proxies for high-performance web serving.
Mail Infrastructure
Self-hosted mail at production scale using Postfix, Dovecot, and deliverability configurations including SPF, DKIM, and DMARC.
Hosting & Billing
WHMCS module development, credit-based billing, reseller and affiliate systems, and commission ledgers for hosting businesses.
WordPress Development
Custom themes, parent/child architecture, Gutenberg blocks, many custom plugins, WooCommerce, WP-CLI, and LiteSpeed Cache integration.
Expertise in hosting platforms, control panels, deployment pipelines, Linux and LiteSpeed servers, domain management, Docker, MicroVMs, multi-tenant isolation built from scratch using Linux namespaces, cgroups, storage and process isolation.
Backend & API Development
Proficiency in Python/Django and Go services, REST API design, CLI tooling, job queues, webhooks, parallel processing, Node.js, Bytenode, and command-line tools built for both humans and AI agents.
AI in Production
Hands-on experience with Anthropic API (Claude) and LLM features in production environments, including AI pricing assistants, AI web generation, and AI incident updates.
Frontend Development
Strong command of React, Next.js, Tailwind CSS, Smarty, responsive and accessible UI design, WordPress architecture with reusable parent themes and custom plugins.
Security & Authentication
Server and application hardening, ModSecurity (WAF), TOTP two-factor authentication, passwordless login, API tokens, HMAC-signed webhooks, payload encryption, rate limiting, incident response and recovery of compromised or broken systems.
Product & Growth Engineering
Pricing engines, Stripe payments (cards, iDEAL, webhooks), client portals, cookie-free A/B testing, conversion funnels, attribution, technical SEO, multilingual sites (i18n, hreflang), privacy-by-design analytics.
Databases & Caching
Experience with PostgreSQL, MySQL, Redis, and Memcached for production-grade data storage and caching solutions.
Cloud & Edge
Deployment and management on AWS, Google Cloud, and Cloudflare Workers (Wrangler) for scalable and distributed systems.
Web Servers
Configuration and management of LiteSpeed (LSWS), Apache, Nginx, Caddy, and reverse proxies for high-performance web serving.
Mail Infrastructure
Self-hosted mail at production scale using Postfix, Dovecot, and deliverability configurations including SPF, DKIM, and DMARC.
Hosting & Billing
WHMCS module development, credit-based billing, reseller and affiliate systems, and commission ledgers for hosting businesses.
WordPress Development
Custom themes, parent/child architecture, Gutenberg blocks, many custom plugins, WooCommerce, WP-CLI, and LiteSpeed Cache integration.
Experience
Professional experience10+ years
Freelancer since2016
Languages
EnglishNative speaker
Project history
Agentic AI web design engine: complete multi-page websites from one prompt, as WordPress block pages, standalone HTML/CSS/JS or via API. WordPress plugin, npm CLI, REST API with 20+ endpoints, parallel AI photo generation, HMAC-signed webhooks, white-label WHMCS/cPanel provisioning, in-browser WordPress previews.
Status pages, uptime monitoring, site health and SSL checks, AI incident updates, instant alerts. SaaS, built end to end.
Lead platform: local-business search, enrichment, verification, lists, team access, API. SaaS, built end to end.