I build and repair the systems between a business event and a reliable outcome. When leads stop reaching the CRM, an API creates duplicate or missing records, a SaaS workflow breaks at an edge case, or raw data cannot support a decision, I trace the full path, fix the operating logic, and verify the result against clear acceptance criteria.
Recent work includes KitchenPermit, a Next.js and Spring Boot client SaaS with API-backed reporting and PDF output; a 10-stage GoHighLevel lead-to-booking system; an n8n-to-HubSpot workflow where three identical submissions produced one Contact and one Deal; and source-linked operations covering 10,000+ business records.
Typical engagements
• Trace and repair broken webhooks, mappings, workflow triggers, duplicate records, and recovery paths
• Build bounded SaaS features, Spring Boot APIs, React/Next.js interfaces, customer portals, and internal dashboards
• Connect lead capture, qualification, booking, follow-up, payment visibility, and operational handoff
• Extract, clean, deduplicate, validate, and export decision-ready data with clear exception handling
Start with one broken workflow, one representative input, or one bounded feature. I’ll reconstruct the failure path, define the acceptance criteria, implement the fix or working slice, test the edge cases, and return verification evidence.
I work async-first with written requirements recaps, concise progress updates, source/build files, and clear handoff notes.
Core stack: GoHighLevel, HubSpot, n8n, Java, Spring Boot, React, Next.js, TypeScript, Python, REST APIs, SQL, browser automation, and data workflows.
API Integration
Full-Stack Development
CRM Automation
Python
React
Java
Spring Boot
REST API
Next.js
TypeScript
SaaS
HubSpot
n8n
HighLevel
Business Process Automation
Browser Automation
Data Engineering
Data Extraction
Web Scraping
Document Automation
Babar L.
Lahore, Pakistan
$20/hr
5.0
4 jobs
I find the manual process quietly costing you the most money, then build the automation that kills it for good.
Hi, I'm Babar. Whether it's an AI voice agent that calls and qualifies your leads 24/7, or a back-office system that ends the copy-paste your team drowns in every day, I build automation that does the work a human shouldn't have to. Across 25+ projects, I've saved teams 2,0,00+ hours and built voice agents that handle conversations as naturally as your best rep.
I don't connect two apps and call it done. I look at how your business actually runs, find the highest-ROI bottleneck, and engineer the system that removes it documented, scalable, and built so it doesn't break the moment you grow.
WHY CLIENTS TRUST ME
-- 25+ automation projects delivered
-- 2,000+ hours of manual work eliminated for clients
-- 3+ years building production automation systems
-- Certified n8n & Make automation builder
-- Fast, clear async communication
-- EST-friendly availability for US-based clients
WHAT I BUILD FOR YOU
-- Workflow Automation multi-step, branching systems in n8n, Make, and Zapier with real error handling and retries. Not drag-and-drop that falls over the first time something unexpected happens.
-- AI Voice Agents (Inbound & Outbound) — natural, non-robotic phone agents that qualify leads, bo
-- AI Agents Inside Your Workflows — agents that read, decide, and act: lead scoring, routing, classification, and document processing. The kind that take action, not just answer a question and stop.
-- RAG Systems & Knowledge Assistants — AI that answers from YOUR documents and data instead of making things up. Built on Pinecone, pgvector, or Supabase with citation tracking so you can trust the output.
-- API & Webhook Integrations — making your disconnected tools finally talk to each other. CRMs, ERPs, databases, spreadsheets, and the niche app no one else wants to touch.
-- Automated Reporting & Dashboards — a real-time view of your business, instead of a weekly update someone forgot to send.
TOOLS I WORK ACROSS
Automation: n8n (self-hosted & cloud) · Make · Zapier
AI & LLMs: OpenAI · Claude · Gemini · LangChain
RAG & Data: Pinecone · pgvector · Supabase
CRMs & Ops: GoHighLevel · HubSpot · Airtable
Data & PM: Notion · Google Sheets · Google Workspace
Dev: REST APIs · Webhooks · Python
VAPI · Retell AI · Bland AI · Twilio · ElevenLabs
RESULTS I'VE DELIVERED
-- Cut a client's manual CRM work by 80%, freeing up roughly 15 hours every week
-- Built a document-processing system that validates each record the way a human would and flags only the genuine exceptions for review
-- Replaced a fragile multi-step Zapier chain with a maintainable n8n system that's run without failure ever since
-- Built an AI voice agent that handles inbound and outbound calls end to end qualifying leads, booking appointments, and transferring live to a human when it counts
WHO THIS IS FOR
→ Founders and ops leads losing 10+ hours/week to manual work and disconnected tools
→ Teams whose "automations" keep breaking and need systems built properly
→ Businesses that want one technical partner, not three specialists who blame each other when something breaks
HOW I WORK
1. Map: I learn how your business actually runs and find the bottleneck costing you the most. If I can't tie it to clear ROI (hours saved, errors cut, revenue recovered), I'll tell you it's not worth building.
2. Build: production-ready from day one: logging, fallback logic, and full error handling, with progress updates so you're never guessing.
3. Hand off: clean documentation and a recorded Loom walkthrough so your team can run and extend it without me. You own it completely.
Most engagements start with one process and grow not because I upsell, but because once the first system runs, the next bottleneck becomes obvious.
LET'S TALK
Send me a 2–3 sentence description of the process eating your team's time. I'll tell you straight whether it's worth automating and exactly what the build would look like no pitch, no pressure.
Send me the process. I'll show you what it looks like running without you.
AI Automation, AI Automation Expert, AI Automation Engineer, AI Automation Specialist, AI Automation Consultant, AI Automation Architect, Workflow Automation, Business Process Automation, AI Agent, AI Agent Developer, AI Agent Builder, AI Chatbot, AI Chatbot Developer, n8n, n8n Expert, n8n Developer, n8n Automation, n8n Workflow Automation, Make, Make Automation, Zapier, Zapier Automation, API Integration, Webhook, Webhook Integration, LLM Integration, OpenAI, ChatGPT, Claude, Anthropic API, Gemini, Prompt Engineering, No-Code Automation, Agentic AI, CRM Automation, GoHighLevel, GHL, Python Automation, AI Integration, AI Consultant, AI Workflow Automation
Google Analytics 4
Google Tag Manager
Marketing Analytics
Google Search Console
Google Analytics
Looker Studio
Analytics & Tracking Setup
Analytics Dashboard
Google Analytics Report
Web Analytics Report
Product Management
BigQuery
Data Visualization
Data Analytics
Meta Pixel
Fernando Arturo C.
Pampanito, Venezuela
$18/hr
4.7
32 jobs
Most businesses are leaking revenue because their infrastructure is held together by "digital duct tape."
If your CRM is a mess, your workflows are breaking, or you’re still doing manual data entry between apps, you need a Systems Engineer.
I build the technical engine that allows your business to run without constant human intervention. Whether it's architecting a complex GoHighLevel ecosystem from scratch or building custom full-stack applications to extend your capabilities, I ensure your technology works for you, not the other way around.
How I can help your business:
Engineering your GHL Ecosystem: I handle the technical "headaches" that others avoid. From A2P 10DLC compliance and custom domain mapping to complex email SMTP/API setups and Social Planner architecture. Your CRM will be a clean, high-performance environment, not a graveyard of unfinished workflows.
Custom App & Web Development: I build high-converting funnels, corporate websites, and specialized web applications using Bolt, Replit, and Lovable. If you have a web platform that needs to live on your clients' phones, I can convert your project into a native-like mobile application.
Advanced Automation & API Bridges: I connect the dots between your tools using Base44, Make, and custom Webhooks. I specialize in creating "Speed to Lead" systems where data flows instantly and accurately across your entire stack. Zero manual work required.
AI Logic & Chatbots: I deploy intelligent AI agents that don’t just "chat," but actually qualify users and trigger complex backend logic, ensuring your CRM stays updated and your sales team only talks to qualified prospects.
Scalable Tech Infrastructure: I set up the tracking, pixels, and conversion APIs needed for your paid media to scale. You get a technical foundation that is built for growth, not just for today.
Why work with me?
I don’t follow a "to-do" list; I analyze your business logic and identify where the friction is. I speak fluent English and understand that every line of code or automation I write must have a clear purpose: increasing your efficiency and ROI.
I’m not here to "try" things. I’m here to build systems that work, using a professional tech stack (Supabase, Bolt, Replit, Base44) that puts you ahead of 99% of your competitors who are still stuck using basic templates.
Technical Capabilities & Tools:
CRM Engineering: GoHighLevel (A-Z technical setup, Snapshots, Pipelines).
Development: Bolt.new, Replit (hosting & custom scripts), Lovable (Web-to-Mobile conversion).
Data & APIs: Base44, Make, Zapier, Webhooks, API Integrations.
Infrastructure: A2P 10DLC, Domain Management, SMTP/API Email logic.
What we can achieve together:
Transform your manual sales process into an autonomous revenue engine.
Eliminate data silos by building custom API bridges between your platforms.
Launch high-performance web apps and mobile-accessible tools for your clients.
Ensure 100% data integrity and real-time tracking across your entire funnel.
If you are ready to move away from "manual hustle" and want your systems built to professional engineering standards, let's talk.
Web Design
Web Development
SaaS Development
Supabase
Claude
Gemini
HighLevel
AI Chatbot
Chatbot
Landing Page
Website
SEO Audit
Domain Name
DevOps Engineering
React
JavaScript
CRM Software
CRM Automation
Automation
Mikhail O.
West Palm Beach, Florida
$95/hr
4.3
575 jobs
🚀 SENIOR FULL-STACK AUTOMATION ENGINEER — AI · CRM/ERP · DevOps
I build production AI agents, automation workflows, and end-to-end integrations as ONE technical partner — instead of clients juggling 3-4 specialists who blame each other when systems break.
Trusted across 20+ verticals since 2019.
📊 TRACK RECORD (6+ years on Upwork)
✅ $1M+ earnings · 462 projects ($2K → $500K range) · 16,635 hours logged
✅ 100% Job Success Score · Top Rated Plus
✅ 5,000+ workflows deployed · $5M+ saved · 100K+ hours of manual work eliminated
✅ AI agents in production handling 10,000+ calls/month
✅ Certified partners: Monday, Make, Vapi, Retell AI, Palantir Foundry
✅ Supported by Retailbox team (15K+ combined hours) for surge capacity
✅ Average response under 4 hours · US East Coast (West Palm Beach, FL)
✅ Available 10-30 hrs/week or full-time burst engagements
🏆 RECENT WINS (anonymized)
• AI Copilot for $500M+ investment portal — Salesforce + SharePoint + RAG, 4-month build
• Multi-tenant AI SaaS for elder care lead intelligence — scraping + AI scoring + dashboard
• Healthcare wound care platform — HIPAA-compliant, mobile + EMR + AI transcription
• Estate Planning AI Copilot — Claude + custom legal workflows for law firm
• B2B Outbound System — Apollo + Clay + Smartlead + AI personalization, 1,000+ leads/week
• ERP transformation — QuickBooks → Tryton migration, custom Python pipeline
• AI Acquisition Engine — Multi-source enrichment + LLM scoring for B2B sales team
🌐 INDUSTRIES
Home Services & Trades (HVAC · Plumbing · Electrical · Roofing · Solar · Pool · Painting) · Healthcare & Medical (Clinics · Pharmacy · Health Insurance · EMR · HIPAA) · Financial Services (Mortgage · Insurance · Investment · Crypto · Payments) · Manufacturing (Cabinet · Furniture · Steel · Civil Engineering) · Real Estate & Property · Marketing & Sales
Agencies (GHL · HubSpot) · Construction & Contractors · Legal & Compliance · Retail & E-commerce (Shopify · Amazon · WooCommerce) · SaaS & Tech Startups · Telecom · Trucking · and more.
🤖 WHAT I DELIVER
AI Engineering
• Custom AI agents (Claude, GPT, Gemini) with tool calling
• MCP server development for enterprise systems
• RAG with vector databases (Pinecone, Weaviate, Qdrant, pgvector)
• LangChain, LangGraph, CrewAI orchestration
• I use Claude Code, Cursor, Codex daily — ship 5× faster
Workflow Automation
• n8n, Zapier, Make, Windmill, Power Automate
• Custom Python/Node replacing fragile no-code chains
• ETL pipelines (CRM ↔ data warehouse, AI training data, ERP migrations)
• Event-driven systems, drip campaigns, scheduled reports
CRM/ERP Integration & Architecture
• HubSpot, Salesforce, Zoho, Monday, Pipedrive, Dynamics 365, GHL, Close CRM
• NetSuite, Odoo, QuickBooks, Xero, Stripe
• Field service — ServiceTitan, Jobber, Housecall Pro
• Healthcare — eClinicalWorks, FHIR, HL7
• Multi-system architectures (5+ platforms unified)
Full-Stack Development
• React, Next.js, Node.js, Python, FastAPI, Django
• Mobile — React Native, native iOS/Android
• AI dashboards, admin panels, internal tools
• PostgreSQL, MongoDB, Redis
DevOps & Cloud
• AWS, GCP, Azure · Docker, Kubernetes, CI/CD
• Production monitoring, observability, security
• HIPAA / SOC2 / PCI-aware integrations
Voice AI — Vapi, Retell AI, Bland AI, Twilio (when use case fits)
🎯 COMMON ASKS
• Claude/GPT integration into your app or CRM
• AI SDR that books meetings (Apollo + Clay + Smartlead + Claude)
• RAG chatbot trained on your company data
• CRM automation with AI lead scoring (HubSpot/SF/Zoho/GHL)
• Field service workflow (ServiceTitan/Jobber + AI)
• Internal AI dashboard for ops team (Retool/custom)
• Migrate Zapier/Make spaghetti to maintainable code
• AI-powered mobile MVP (React Native + Claude)
• Voice AI receptionist (Vapi or Retell + CRM sync)
• ETL pipeline (QuickBooks/NetSuite ↔ data warehouse)
• Custom MCP server for your team's Claude
🎯 IDEAL FIT
I serve all sizes:
• SMB ($1K-$10K) — small but specific automation that pays back fast
• Mid-market ($10K-$100K) — multi-month engagements, multi-system builds
• Enterprise ($100K-$500K+) — strategic platform builds, AI-native systems
Engagement models:
• $2K-$15K fixed scope (1-6 weeks)
• $50K+ for AI/full-stack platform builds
• $95-125/hr fractional (10-30 hrs/week, weekly Slack sprints)
• Long-term Tech Support retainers
💼 HOW I WORK
Week 1 — discovery + architecture · Week 2-N — weekly build sprints with daily Slack · Final week — production deploy with docs, tests, handoff. You own the code (zero agency lock-in). Available for ongoing maintenance OR clean handoff to your in-house team.
💬 NEXT STEP
Send a 2-3 sentence brief: what you're building, your current stack, and the specific problem you want solved. Loom walkthroughs, existing repos, and architecture diagrams welcome.
Python
Artificial Intelligence
AI Agent Development
API Integration
API
Machine Learning
AI Development
AI Model Integration
Amazon Web Services
Automation
n8n
Claude
HubSpot
Salesforce CRM
Zoho CRM
Zapier
CRM Software
DevOps
ETL Pipeline
Mobile App Development
Roohullah K.
Islamabad, Pakistan
$20/hr
5.0
17 jobs
Looking for an AI Full Stack Developer who delivers scalable, production-ready solutions? You're in the right place.
I build modern web applications using AI tools and technologies, React, Angular, Node.js & cloud that solve real business problems. Whether you need a complete platform from scratch, API integrations, or AI-powered features, I deliver clean code and reliable results.
What I specialize in:
AI integration (OpenAI API, Claude API, Google Gemini, RAG, Deepseek, Kimi, Qwen)
AI Automation (Make, Zapier, n8n, OpenClaw, Claude Code, Claude Cowork)
Voice Agents (ElevenLabs, Vapi, Retell, Deepgram, Gemini Live)
Low Code & No Code platforms (Bubble, Replit, Loveable)
Full-stack web applications (MERN/MEAN stack, React, Angular, NextJS)
RESTful APIs and third-party integrations (NodeJS, NestJS, ExpressJS)
Cloud deployment (AWS, Azure, GCP)
Database design and optimization (PostgreSQL, MongoDB, MySQL, ElasticSearch, Pinecone)
Responsive, mobile-first UI/UX
CRM (GoHighLevel)
Why work with me:
✓ Fast, clear communication (replies within 2 hours during business hours)
✓ Clean, documented code following industry best practices
✓ On-time delivery with regular progress updates
✓ Post-launch support and maintenance
I've helped many clients turn their ideas into successful web applications. From startups launching MVPs to established businesses scaling their platforms, I focus on understanding your goals and delivering solutions that work.
Available for both short-term projects and long-term partnerships. Let's discuss how I can help bring your project to life.
If any of that sounds like what you need, contact me!
Friendly,
Roohullah Kazmi
P.S. Regardless of who you choose, keep my profile handy in case you need me later.
F.A.Q.
Q - Do you provide consultation?
A - Yes, I provide expert consultation services. Whether you need advice on strategy, development, or execution, I'm here to assist at every stage.
Q - I don't have a design for my product.
A - No worries! If you don’t have a design for your product, I can help. I will work with you to ensure your product vision comes to life, even if you're starting from scratch.
Q - I don't know the complete requirements.
A - That’s completely fine! If you’re unsure of the complete requirements, I can help you define them.
TypeScript
React
AngularJS
Node.js
API Integration
JavaScript
MongoDB
SQL
Next.js
n8n
Make.com
ElevenLabs
AI Bot
Zapier
ChatGPT API Integration
Alden Robell D.
Liloan, Philippines
$10/hr
5.0
1 jobs
I'm Alden, a full-stack web developer AND an n8n master.
For WEB APPS: I specialize in React, Django, SQL
For N8N: I specialize in creating high-complex workflows that integrate with apps like Salesforce, GoHighLevel, ReTell, Google Workspaces, and Supabase, to name a few. I'm an integration master with expertise in playing with API's from any available providers.
All in the pursuit of making your business idea come to fruition and get it moving in the industry.
With experience working remotely for US and UK-based startups, I thrive in agile environments and bring a proactive mindset to the team.
Contact me to showcase all my work (web apps and n8n workflows).
🔧 Core Skills:
React • Python • Django • Supabase • SQL • LLM Integrations • n8n • GHL • API integrations
Web Development
Web Application
Software Development
SQL
Full-Stack Development
React
Python
Airtable
Automation
Next.js
Django
Supabase
LLM Prompt Engineering
n8n
HighLevel
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