Arnel C.

I build custom software with AI: CRMs, portals, SaaS apps, AI bots, and GoHighLevel integrations. I design, code, test and ship complete systems, using AI-assisted development to deliver in days what used to take weeks. Top Rated Plus · 100% Job Success · 10,000+ hours on Upwork What I build: • Custom web apps & SaaS: CRMs, client and partner portals, dashboards, internal tools, multi-user systems with secure role-based access • AI solutions: AI bots, AI agents, and LLM-powered features that automate real business work • GoHighLevel development: marketplace apps (including custom Conversation Providers), API integrations, snapshots, and full agency setups • APIs & integrations: REST APIs, webhooks, and OAuth connecting CRMs, payment platforms, POS systems, Facebook Ads, email tools, Zapier and Make Recent work: • Built a complete CRM from scratch with a REST API, scheduled automation agents, and a built-in security checker • Developed a partner portal for a merchant services company, with community feed, cross-portal messaging and notifications (Node.js, Supabase/PostgreSQL, Vercel) • Built a custom AI bot and AI tools that support sales partners and automate workflows • Building a multi-agent development platform where AI agents act as PM, engineer and QA (Next.js, Supabase, LLM APIs) How I build: I use AI-assisted development (Claude Code and LLM tools) every day, backed by 13+ years in IT. AI writes code fast, and my job is to make sure it’s right: • I design the architecture, database and security before any code is written • I review, test and debug everything AI produces. Nothing ships unchecked. • I understand the code I deliver, so I can maintain, extend and support it long-term You get faster delivery and lower cost, without the shortcuts. Background: BS in Information Technology. Started in network and desktop engineering, then systems administration, CRM and automation work for marketing agencies and POS companies, and now full-stack and AI development. Tech: Next.js · Node.js · JavaScript · Supabase · PostgreSQL · Vercel · REST APIs · OpenAI/Claude APIs · GoHighLevel Working with me: clear daily updates, clean handoff documentation, and I don’t disappear after launch. Tell me what you want to build, and I’ll tell you the fastest way to get there.