Kristofer H.

85+ Upwork projects - 100% Job Success - 5.0 rating across 40+ reviews - founder of Wrk Less in Orlando. You need software that solves a real operational problem, built right the first time, by someone who understands your business and not just your stack. I'm Kris - a full-stack developer and founder. I architect and lead every build personally. When a project needs more hands, I add development capacity I've worked with for years - you get agency throughput without agency overhead or handoff roulette. What clients hire me for: - Web applications and SaaS platforms - JavaScript/Node.js, PHP, MySQL/PostgreSQL, Supabase, custom admin panels and internal tools - AI development - AI voice receptionists and agent workflows, LLM integration with OpenAI, RAG over company data, chatbots that actually resolve things - Taking AI-built prototypes to production - your app started in Lovable, Bolt, or a weekend of vibe-coding, and now needs auth, security, payments, and real infrastructure - API development and integration - REST, webhooks, third-party integrations, payment flows, telephony (Twilio), CRM and business-system connections - Business operations software - CRM, onboarding, invoicing, scheduling, reporting dashboards, and the data pipelines feeding them - Automation where it belongs - n8n, Make, Zapier, and GoHighLevel as part of a real architecture, not as the architecture Recent results: - Built and launched a Shopify app (AI chat for storefronts) from idea to live product, running in production on owned infrastructure - Architected an AI receptionist platform answering real calls for paying monthly-retainer clients - telephony, LLM, and CRM integration end to end - Rebuilt a city's permit data into a live lead-generation pipeline - public data in, qualified prospects out I work best with businesses big enough to need real software and honest enough to know that building it wrong the first time costs more than doing it right. If that's where you are, send me the current workflow, the systems involved, and what "done" looks like. I'll tell you what should be custom-built, what can be integrated, and where complexity isn't worth paying for. Services: Full-Stack Development - Web application development - Custom software - SaaS development - MVP and product development - Internal tools and admin panels - CRM and operations systems - Legacy workflow replacement AI Development - AI agents and voice AI - LLM integration (OpenAI) - RAG pipelines - AI chatbots - AI-powered workflows - Prompt engineering API & Integration - REST APIs - Webhooks - Twilio/telephony - Payment integration - CRM integration (GoHighLevel and others) - Data pipelines Automation (supporting, not leading) - n8n - Make - Zapier - Business process automation - Reporting automation