Hire the Best B4X Developers
Hanoi, Vietnam
Top Rated AI Marketing Systems Specialist with 7+ years building data, marketing, and AI systems If you shoot me an invitation or message I'll send you exactly how I'd approach your problem before you decide whether to hire me. ๐๐ก๐๐ญ ๐ ๐๐๐ง ๐ก๐๐ฅ๐ฉ ๐ฒ๐จ๐ฎ ๐ฐ๐ข๐ญ๐ก: ๐. Cold Outbound + GTM Lead Generation Automation: Build your B2B lead gen + CRM + AI-powered outbound system: Clay + Instantly + Attio + Apollo + n8n + LinkedIn (Aimfox / Sales Navigator) + cold-email infrastructure. Currently Fractional GTM Engineer for a European-based seed-stage B2B SaaS founder. ๐. Conversion Tracking & Attribution: GA4 + Google Tag Manager (GTM) + Meta Pixel + Meta Conversion API (CAPI) server-side + Google Enhanced Conversions + UTM hygiene + dynamic remarketing + CRM โ ad-platform attribution loops. ๐. Google Ads + Meta Ads Management + Full-Funnel Operator: fractional growth lead running Google Ads, Meta Ads, social media, newsletter, and CRM as one connected operation. ๐. Marketing Dashboards & Internal Tools: Looker Studio + Google Sheets + Apps Script + Vercel web apps for agencies and consultants running the same workflow across many clients. ๐. AI Content Production: AI video + AI image + UGC + Shorts pipelines (HeyGen + ElevenLabs + CapCut) + bulk SEO article generators (Claude API) + AI graphic design with brand guardrails. ๐. Custom AI Agents + LLM Workflows + MCP Servers: Claude Code + Claude API + OpenAI API + agentic workflows + RAG pipelines + chatbots + voice agents + assistants + custom MCP servers + locally-deployed agents (Mac mini, VPS) for founders who want local-first AI. ๐๐๐ซ๐๐๐ซ ๐ก๐ข๐ ๐ก๐ฅ๐ข๐ ๐ก๐ญ๐ฌ: ๐ฏ Analytics Engineer at Bench Accounting (Vancouver fintech, $89M peak revenue, 11,000+ client environments running in parallel) on dbt + SQL + Snowflake ๐ฏ Business Intelligence Analyst at Noise Digital acquired by Digital Havas Media Group (โฌ2.74B 2024 revenue, 22,610 people, 100+ markets, global big-six). Agency clients: Toyota, Adidas, J&J, Ferrero, PlayStation, A&W, Sun Life Canada ๐ฏ Fractional go-to-market (GTM) Engineer for a European-based seed-stage B2B SaaS founder ๐ฏ Fractional Growth Operator for a Manhattan luxury salon-suite brand on Madison Avenue ๐ฏ Personal brand grown 0 โ 350,000 followers in 7 months on a 20-min/day n8n + Python workflow ๐ฏ Top Rated on Upwork with a 100% Job Success Score ยท 5.0โ ๐๐ฒ ๐ญ๐๐๐ก ๐ฌ๐ญ๐๐๐ค: - Automation: n8n, Zapier, Make, Python, Apps Script, MCP - AI / LLM: Claude (Code + API), OpenAI / GPT, agentic workflows, RAG, MCP servers, Anthropic SDK - CRM: HubSpot, GoHighLevel, Salesforce, Attio, ActiveCampaign - Tracking & Ads: GA4, Google Tag Manager, Meta Pixel, Meta Conversion API (CAPI) server-side, Google Ads, Meta Ads, Enhanced Conversions, UTM hygiene - Data & Dashboards: Looker Studio, Google Sheets, Airtable, Supabase, dbt, Snowflake, BigQuery - Outbound: Instantly, Clay, Apollo, Smartlead, Sales Navigator, Aimfox ๐๐๐ซ๐ญ๐ข๐๐ข๐๐๐ญ๐ข๐จ๐ง๐ฌ: - AWS Certified Solutions Architect Associate - AWS Certified Data Analytics Specialty - Google Ads Search Certification ๐๐ก๐ฒ ๐ฒ๐จ๐ฎ ๐ฌ๐ก๐จ๐ฎ๐ฅ๐ ๐ฐ๐จ๐ซ๐ค ๐ฐ๐ข๐ญ๐ก ๐ฆ๐: ๐ค Quality: When your tracking breaks, I read the logs. When your CAPI loop drops events, I read the docs. Agency "GA4 experts" guess. ๐ค Production-grade, not prototype-grade. I ship reliable, scalable systems built to survive real traffic not demos that fall over week one. ๐ค Strategic operator, not order-taker. Hands-on, autonomous, async-clear comms. I take ownership of the build, no hand-holding required. ๐ค Documented handover, no black box. Playbook+ final handoff Loom. Stop paying me and your system keeps running. Thanks for reading and let's discuss your project! ๐ฅณ
- API Integration
- Automation
- Artificial Intelligence
- Generative AI
- Python
- n8n
- Google Tag Manager
- Google Analytics
- Data Analytics
- CRM Automation
- Lead Generation
- Marketing Automation
- Zapier
- All in One SEO
- Content Strategy
Lahore, Pakistan
๐ ๐๐จ๐ฉ ๐๐๐ญ๐๐ | ๐ฏ ๐๐จ๐ ๐๐ฎ๐๐๐๐ฌ๐ฌ | ๐ ๐ ๐ฎ๐ฅ๐ฅ ๐๐ญ๐๐๐ค & ๐๐ ๐๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ ๐๐ง๐ ๐ข๐ง๐๐๐ซ ๐๐ฐ๐ด๐ต ๐ฃ๐ถ๐ด๐ช๐ฏ๐ฆ๐ด๐ด๐ฆ๐ด ๐ฅ๐ฐ๐ฏโ๐ต ๐ฏ๐ฆ๐ฆ๐ฅ โ๐๐ถ๐ด๐ต ๐ ๐๐ฆ๐ท๐ฆ๐ญ๐ฐ๐ฑ๐ฆ๐ณ.โ ๐๐ฉ๐ฆ๐บ ๐ฏ๐ฆ๐ฆ๐ฅ ๐ด๐ฐ๐ฎ๐ฆ๐ฐ๐ฏ๐ฆ ๐ธ๐ฉ๐ฐ ๐ค๐ข๐ฏ ๐ฃ๐ถ๐ช๐ญ๐ฅ ๐ด๐บ๐ด๐ต๐ฆ๐ฎ๐ด ๐ต๐ฉ๐ข๐ต ๐ด๐ค๐ข๐ญ๐ฆ, ๐ข๐ถ๐ต๐ฐ๐ฎ๐ข๐ต๐ฆ ๐ธ๐ฐ๐ณ๐ฌ, ๐ข๐ฏ๐ฅ ๐ข๐ค๐ต๐ถ๐ข๐ญ๐ญ๐บ ๐ฅ๐ณ๐ช๐ท๐ฆ ๐ณ๐ฆ๐ด๐ถ๐ญ๐ต๐ด. Thatโs exactly what I do. I help startups, agencies, and growing businesses build: โ ๐๐๐๐ ๐๐๐๐ฌ โ ๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง ๐๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ โ ๐๐๐ & ๐๐จ๐ซ๐ค๐๐ฅ๐จ๐ฐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง โ ๐๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ๐ฌ (๐ข๐๐ & ๐๐ง๐๐ซ๐จ๐ข๐) โ ๐๐ ๐๐ ๐๐ง๐ญ๐ฌ & ๐๐จ๐ข๐๐ ๐๐ โ ๐ ๐ฎ๐ฅ๐ฅ ๐๐ญ๐๐๐ค ๐๐๐ ๐๐ฉ๐ฉ๐ฅ๐ข๐๐๐ญ๐ข๐จ๐ง๐ฌ โโโโโโโโโโโโโโโโโโโ โก ๐๐๐๐ ๐ ๐๐๐๐๐ โฆ ๐๐๐๐ & ๐๐๐ ๐๐ฅ๐๐ญ๐๐จ๐ซ๐ฆ๐ฌ Modern scalable products using Next.js, React.js, TypeScript, Supabase, MongoDB, Firebase, and cloud infrastructure. โฆ ๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง & ๐๐ ๐๐ง๐ญ๐ฌ Custom AI workflows, autonomous agents, RAG systems, AI assistants, and business automations powered by OpenAI, LangChain, CrewAI, and LangGraph. โฆ ๐๐๐ & ๐๐ฎ๐ฌ๐ข๐ง๐๐ฌ๐ฌ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง GoHighLevel, HubSpot, Salesforce, Airtable, n8n, Make, Zapier, Twilio, lead routing, follow-ups, pipelines, and operational workflows. โฆ ๐๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ Cross-platform mobile apps with React Native & Flutter focused on clean UI/UX, performance, scalability, and real-time functionality. โฆ ๐๐๐๐ค๐๐ง๐ & ๐๐๐ ๐๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ REST APIs, FastAPI, Node.js, Django, GraphQL, Webhooks, OAuth2, third-party integrations, and scalable cloud architecture. โโโโโโโโโโโโโโโโโโโ ๐ ๏ธ ๐๐๐๐ ๐๐๐๐๐ ๐ ๐ซ๐จ๐ง๐ญ๐๐ง๐ Next.js โข React.js โข TypeScript โข Tailwind CSS ๐๐๐๐ค๐๐ง๐ Python โข FastAPI โข Node.js โข Django โข REST APIs ๐๐ & ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง OpenAI โข LangChain โข LangGraph โข CrewAI โข n8n โข Make โข Zapier ๐๐๐ญ๐๐๐๐ฌ๐๐ฌ MongoDB โข PostgreSQL โข Firebase โข Supabase โข Redis ๐๐๐ & ๐๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ GoHighLevel โข HubSpot โข Salesforce โข Airtable โข Twilio ๐๐จ๐๐ข๐ฅ๐ React Native โข Flutter โข Firebase ๐๐ฅ๐จ๐ฎ๐ & ๐๐๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐๐ง๐ญ AWS โข Docker โข Railway โข Vercel โข CI/CD โโโโโโโโโโโโโโโโโโโ ๐ ๐๐๐ ๐๐๐๐๐๐๐ ๐๐๐๐ ๐๐๐๐ ๐๐ โ Clean & scalable architecture โ Fast communication & reliable delivery โ Business-focused development approach โ Strong understanding of AI & automation โ Production-ready systems built for growth โ Long-term support & optimization โโโโโโโโโโโโโโโโโโโ ๐ค ๐๐ฏ๐๐ข๐ฅ๐๐๐ฅ๐ ๐ ๐จ๐ซ โข SaaS MVP Development โข AI Automation Systems โข CRM & Workflow Automation โข Mobile App Development โข Full Stack Development โข AI Agents & Voice AI โข API Integrations & Backend Systems โข Startup & Business Automation Solutions โโโโโโโโโโโโโโโโโโโ ๐๐๐ฎ๐ถ๐น๐ฎ๐ฏ๐น๐ฒ ๐ณ๐ผ๐ฟ ๐๐ฎ๐น๐น๐ & ๐๐ผ๐ป๐ด-๐ง๐ฒ๐ฟ๐บ ๐๐ผ๐น๐น๐ฎ๐ฏ๐ผ๐ฟ๐ฎ๐๐ถ๐ผ๐ป๐ ๐๐ฎ๐ฝ๐ฝ๐ ๐๐ผ ๐ฆ๐ถ๐ด๐ป ๐ก๐๐ & ๐ก๐ผ๐ป-๐๐ผ๐บ๐ฝ๐ฒ๐๐ฒ ๐๐ด๐ฟ๐ฒ๐ฒ๐บ๐ฒ๐ป๐๐ ๐๐๐ญโ๐ฌ ๐๐ฎ๐ข๐ฅ๐ ๐ฌ๐จ๐ฆ๐๐ญ๐ก๐ข๐ง๐ ๐ฌ๐๐๐ฅ๐๐๐ฅ๐, ๐ฌ๐ฆ๐๐ซ๐ญ, ๐๐ง๐ ๐ก๐ข๐ ๐ก-๐ฉ๐๐ซ๐๐จ๐ซ๐ฆ๐ข๐ง๐ . ๐๐๐ฌ๐ญ ๐ซ๐๐ ๐๐ซ๐๐ฌ, Tayyab.
- Full-Stack Development
- AI Development
- Mobile App Development
- Automated Workflow
- n8n
- HighLevel
- SaaS Development
- Minimum Viable Product
- React Native
- Next.js
- React
- Python
- Node.js
- Local SEO
- CRM Development
- HubSpot
- Salesforce
- Sales Funnel Builder
- UI/UX Prototyping
- Marketing Automation
Ashland City, Tennessee
I build and improve practical software systems for businesses, including full-stack web apps, automations, AI tools, integrations, dashboards, customer-intake flows, and operational workflows. My strength is taking a business problem, understanding the moving pieces, and turning it into a working technical system. That may mean building from scratch, fixing an inherited project, connecting APIs, improving a website, automating a workflow, cleaning up a database, or integrating tools across a companyโs existing stack. I work across modern web, automation, AI, CRM, payment, communication, and data tools. Recent work has involved platforms, codebases, and tools such as React, Python, JavaScript/TypeScript, Supabase, Stripe, Twilio, Retell, Make .com, n8n, APIs, webhooks, and LLMs. Iโm also comfortable adapting across broader stacks and business platforms, including Django, HubSpot, GoHighLevel, WordPress, CRMs, internal tools, and similar systems. Clients hire me because I diagnose before I build, communicate clearly, explain tradeoffs honestly, and focus on systems that are reliable, maintainable, and useful in the real world. What I can help with: โข Full-stack web apps, dashboards, portals, and business tools โข Workflow automations, APIs, webhooks, and backend integrations โข AI voice agents, chatbots, intake systems, and LLM-powered tools โข CRM, payment, phone/SMS, calendar, email, and operational workflows โข Data pipelines, reporting workflows, and internal business systems โข Website improvements, launch-readiness fixes, and inherited-project cleanup โข Security, OAuth, deployment, documentation, and handoff improvements Credentials and proof: โข 100% Job Success Score on Upwork โข University of Maryland certification โข Anthropic Academy certifications listed in my profile โข Make .com Advanced Certified โข Camunda BPMN Certified โข Strong client feedback for communication, reliability, problem-solving, and delivery quality If you need a practical technical builder who can understand the problem, choose the right approach, and deliver a working system, send me the details. Iโll tell you what I recommend, what it will take, and whether Iโm the right fit.
- Automation
- AI Agent Development
- AI App Development
- AI Consulting
- AI Content Creation
- AI Development
- AI Speech-to-Text
- Web Development
- Chatbot Development
- Website Customization
- Website Optimization
- Web Design
- Web Application Development
- LLM Prompt Engineering
- Retrieval Augmented Generation
- API
Hamirpur, India
I build AI agents, N8N automations, and RAG systems that save businesses 20+ hours/week and reduce operational costs by 40%. Recent wins: โ N8N workflow saving client 20+ hours/week โ RAG chatbot trained on 10,000+ documents for enterprise SaaS โ Voice AI assistant handling 500+ inbound calls/day โ Multi-agent AI system cutting manual work by 60% ๐ AI Automation Engineer | Founder & CTO @ NeuroML I help startups, agencies, and businesses build AI-powered products, N8N automation systems, and scalable SaaS platforms that reduce operational costs, automate repetitive work, and accelerate growth. I lead development of enterprise-grade AI agent solutions, autonomous multi-agent systems, N8N workflow automation, RAG knowledge platforms, and cloud-native applications for clients across USA, Australia, Spain, and Europe. ๐ก ๐๐จ๐ซ๐ ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐: โ AI Agents & Multi-Agent Systems (LangGraph, CrewAI, AutoGen) โ N8N & Make Automation Workflows โ RAG-Based Chatbots & Knowledge Base Platforms โ OpenAI, Claude, Gemini & Open-Source LLMs โ Voice AI Systems (Retell AI, Vapi, ElevenLabs, Deepgram) โ GoHighLevel (GHL) AI Integration & CRM Automation โ LangChain & LangGraph Pipelines โ Replit & Vibe Coding โ Rapid AI Prototyping โ Full-Stack Development (React, Next.js, Python, FastAPI, Django) โ Web Scraping & Data Extraction (Scrapy, Selenium, Playwright) โ Vector Databases (Pinecone, Weaviate, ChromaDB) โ AWS, Docker, Linux & Cloud Infrastructure โ PostgreSQL, MySQL, MongoDB & Redis ๐ฏ ๐๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ ๐ ๐๐ฎ๐ข๐ฅ๐: - AI Agents & Agentic Workflow Systems - N8N & Make Business Automation - Custom AI Chatbots & Assistants - Voice AI Calling Solutions (Inbound + Outbound) - RAG & Enterprise Knowledge Base Platforms - GoHighLevel AI Integration & CRM Automation - AI-Powered SaaS Products & MVPs - Rapid Prototyping with Replit & Vibe Coding - Lead Generation & AI Outreach Systems - Data Extraction & Monitoring Platforms - API Development & Third-Party Integrations ๐ ๐๐๐๐๐ง๐ญ ๐๐ซ๐จ๐ฃ๐๐๐ญ๐ฌ: โ N8N automation workflow saving client 20+ hours/week โ RAG chatbot trained on 10,000+ documents for enterprise SaaS โ Voice AI assistant handling 500+ inbound calls/day โ Multi-agent AI system for business workflow automation โ GoHighLevel AI integration for real estate agency โ Full-stack AI SaaS platform with OpenAI + Stripe integration โ Rapid MVP prototyping using Replit & AI-assisted development โญ ๐๐ก๐ฒ ๐๐ฅ๐ข๐๐ง๐ญ๐ฌ ๐๐จ๐ซ๐ค ๐๐ข๐ญ๐ก ๐๐: โ Business-focused solutions โ not just code โ Clean, scalable, production-ready architecture โ Fast communication & regular progress updates โ Strong focus on performance, reliability & security โ Long-term partnership mindset ๐ฉ Message me โ let's discuss how AI and automation can grow your business! Shubham Sharma Founder & CTO @ NeuroML AI Agent Developer | N8N Expert | LangChain | RAG | OpenAI
- AI Agent Development
- OpenAI API
- n8n
- Python
- Django
- LangChain
- Automated Workflow
- Full-Stack Development
- AWS Amplify
- DevOps
- FastAPI
- React
- NLP Tokenization
- AI Bot
- AI App Development
- AI Product Management
- Make.com
- Pinecone
- ElevenLabs
Fes, Morocco
I build SaaS and AI MVPs end to end. You bring the idea โ I ship the product. Most founders waste months bouncing between developers who overpromise and underdeliver. I don't work that way. With a 100% Job Success Score across 30+ projects, I build things that go live, get users, and scale. Dual degree in Software Engineering and Data Science. Experience shipping real systems at Orange and General Electric. Now I do the same for startups โ faster and leaner. What I build: SaaS MVPs โ Multi-tenant architecture, auth, subscriptions, dashboards. The full product, not just a prototype. AI-Powered Apps โ LLM integrations, RAG pipelines, AI copilots and chatbots embedded into products that actually work in production. Automation Workflows โ n8n, Make, Zapier and custom API logic that eliminate the manual work killing your team's productivity. Full-Stack from scratch โ React / Next.js frontend, Node/NestJS or Spring Boot backend, deployed on AWS with Docker and CI/CD. Stack: Next.js, React, Node.js, NestJS, Spring Boot, Python, LangChain, OpenAI API, n8n, Make, AWS, Docker, Kubernetes. Got an idea, a half-built product, or a process you need automated? Let's ship it.
- MERN Stack
- JavaScript
- React
- Angular
- NestJS
- Spring Boot
- Java
- Python
- Web Development
- Front-End Development
- Back-End Development
- HTML
- CSS
- AI Platform
- Web Application
- API Integration
Sofia, Bulgaria
โ๏ธ Top-Rated Full Stack Developer on Upwork - $350K+ earned, 100% Job Success Score โ๏ธ 25,000+ hours delivered across long-term contracts since 2014 โ๏ธ 15+ years freelancing, mostly on Upwork - based in Bulgaria โ๏ธ Multiple 5+ year client relationships, because clients keep me when the work delivers โ๏ธ University graduate in IT and Automation ๐ What I Do I'm a Senior Full Stack Developer who builds AI-powered web applications and connects systems that need to talk to each other. Most of my work falls into one of three buckets: building new platforms from scratch, integrating AI into products that already exist, or stepping in as a long-term technical partner for teams that need someone reliable. I'm not a "yes man." If I see a better way to do something, I'll tell you. If I see risks in your current approach, I'll tell you that too. Some clients love this, some don't. If you want someone to just nod and code, I'm probably not your best fit. ๐ค AI Integration & Automation - AI API Integration with OpenAI, Anthropic, and Google AI - Chatbots, document processing, and content generation pipelines - Automation workflows using n8n, MCP, and custom tooling - Adding AI features to existing platforms without breaking them ๐ ๏ธ Full Stack Development - Backend & APIs: Go, PHP/Laravel, Python/FastAPI, Node.js, REST, GraphQL - Frontend: React, Next.js, JavaScript, TypeScript, HTMX - Integrations: Shopify API, Apache Kafka, RabbitMQ - Data: MySQL, PostgreSQL, ELK - Infrastructure: Docker, Kubernetes, Linux, Prometheus, Grafana ๐ผ Recent Work I'm Proud Of - Open Banking infrastructure: 2 years on the backend team building UK Open Banking standard infrastructure. Conducted API conformity tests for a major US bank that played a crucial role in their CMA approval to operate in the UK market. - Logistics platform optimization: Replaced a complex Zapier-based workflow with a standalone server. Cut operational headcount from 10 managers to 1, saves a few thousand USD per month, and dramatically reduced human error. The producers, packagers, warehouse, drivers, operators, and owner are all happy with the new system. - Custom Go authentication systems, Grafana dashboards for fintech monitoring, and a number of long-term technical specialist roles where clients kept me on for 5+ years. ๐ฌ What Clients Say "A fantastic developer, total integrity and very reliable." - Golang full stack client (1,500+ hours) "One of the best guys we worked with." - Long-term hosting and infrastructure client "This professional is very capable. He showed proper commitment and deserves special recognition for his seriousness and correctness." - Recurring enterprise client ๐ฏ How I Work: The 3Cs - Confidentiality: I treat your data and business with the same care as my own - Continuous Improvement: I stay curious, current, and always learning what matters - Commitment: I approach every project as if it were my own business ๐ฉ Let's Talk If you need a senior developer who's honest about what works and what doesn't, owns the outcome, and stays for the long term, I'd be glad to chat. I usually respond within a few hours during business days.
- Full-Stack Development
- AI Development
- AI Agent Development
- AI Chatbot
- LLM Prompt Engineering
- OpenAI API
- Golang
- JavaScript
- React
- Next.js
- Node.js
- TypeScript
- PHP
- Laravel
- Python
- Automation
- API Integration
- n8n
- PostgreSQL
- MySQL
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