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USMAN

Full-Stack & AI Automation Engineer

hello@usmanbuilds.aiRawalpindi, Pakistanusmanbuilds.ai

Freelance full-stack developer and AI automation engineer. I build revenue-critical systems: AI voice agents, GoHighLevel ecosystems, n8n & agentic automations, and full-stack products — measured in booked calls, hours saved, and work that actually ships. You work with me directly, from the first call to launch.

01 // EXPERIENCE

Freelance Full-Stack & AI Automation Engineer

2023 — PRESENT

Independent · Top Rated on Upwork

Working directly with business owners and agencies worldwide — scoping, build, launch, and handover, with no account managers in between.

  • 100% Job Success on Upwork across 42+ jobs and 700+ hours
  • Shipped full-stack products and high-converting websites in Next.js / TypeScript
  • Built database-reactivation and lead-routing systems across GoHighLevel and n8n

AI Consultant & GoHighLevel Expert

MAY 2025 — AUG 2026

LionsPath Consulting

Designed and built a complete AI-powered outreach system that books qualified appointments directly onto clients' calendars.

  • Built multi-channel cold outreach combining AI email, AI voice (Retell AI), AI SMS, and LinkedIn into one coordinated system
  • Developed agentic AI workflows with Claude, plus automations in n8n, Make, and CloseBot
  • Built complex GoHighLevel workflows that log every outreach touchpoint made outside GHL, centralizing each prospect's full history inside the CRM
  • Acted as the AI and GoHighLevel consultant on system design, from strategy through build and launch

AI Specialist — SMS & Voice AI

MAR 2024 — APR 2025

ZappyChat

Built AI SMS and voice solutions for ZappyChat's clients, most of them running on GoHighLevel.

  • Designed and set up customized AI SMS bots on ZappyChat to qualify leads, answer questions, and move conversations toward booked appointments
  • Built AI voice agents with Vapi and Retell AI for inbound and outbound calls
  • Created custom GoHighLevel workflows connecting the SMS and voice agents to each client's pipelines, calendars, and follow-up
  • Worked directly with multiple clients to scope, configure, and launch their bots and automations

AI Automation Specialist — Voice & SMS AI

FEB 2024 — NOV 2025

HL PRO TOOLS

Built white-label AI voice and SMS systems for HL PRO TOOLS clients, delivered under their own branding and integrated with GoHighLevel.

  • Designed and built complete custom AI systems for clients, covering both voice and SMS agents from setup to launch
  • Created AI voice agents and AI SMS bots that qualify leads, handle conversations, and book appointments
  • Built and managed GoHighLevel workflows connecting the AI agents to client pipelines, calendars, and follow-up sequences

02 // PROJECTS

AgentWrap — White-label Vapi & Retell AI platform for agencies

agentwrap.io

Designed and built a complete white-label platform that lets agencies resell Vapi and Retell AI voice agents under their own brand.

  • Agencies set their own pricing and bill their clients directly through the platform
  • Clients get their own portal to access and manage their AI agents
  • Native GoHighLevel integration: appointments are booked and call summaries are written to the CRM automatically, with no complex n8n workflows needed
  • API integrations with third-party CRMs for agencies not using GoHighLevel

03 // CORE COMPETENCIES

FULL STACKCORE
GOHIGHLEVELSPECIALTY
VOICE AISPECIALTY
N8N AUTOMATIONCORE
AGENTIC AIR&D
WORDPRESSON-DEMAND
SMS & CHAT AISPECIALTY

04 // TOOLBOX

Next.js / ReactTypeScript / Node.jsPostgreSQLGoHighLeveln8nVapi / RetellClaude Code / Agentic AIWordPressVercel / Docker

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