Hire the Best HEAT Software Specialists

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Sami S.

Thessaloniki, Greece

$30/hr
5.0
14 jobs

I am keen engineer with an interest in multiple sciences, currently working full-time on Upwork and available mainly around GMT working hours 8am-6pm. My competences include: -Thermal Fluid System Engineering. -Design services. -Computational Fluid Dynamics [CFD]. -Stress Analysis [FEA] for coupled CFD analysis. -Thermal analysis -Data Analysis -MS Excel Workbook Building. -Experienced Consultant. -Technical Writer. As I mostly work with opensource software 5% of my earnings goes toward the software developers, The Software I am using at the moment include: -OpenFOAM -Elmer -Salome meca -PrePoMax -FreeCAD -Python -MS Excel -Energyplus

  • OpenFOAM
  • Product Development
  • CFD Analysis
  • Python
  • Industrial Design
  • Mechanical Design
  • Visual Basic for Applications
  • Freecad
  • Siemens NX
  • Research & Strategy
Mikhail O.

West Palm Beach, Florida

$95/hr
4.3
569 jobs

๐Ÿš€ SENIOR FULL-STACK AUTOMATION ENGINEER โ€” AI ยท CRM/ERP ยท DevOps I build production AI agents, automation workflows, and end-to-end integrations as ONE technical partner โ€” instead of clients juggling 3-4 specialists who blame each other when systems break. Trusted across 20+ verticals since 2019. ๐Ÿ“Š TRACK RECORD (6+ years on Upwork) โœ… $1M+ earnings ยท 462 projects ($2K โ†’ $500K range) ยท 16,635 hours logged โœ… 100% Job Success Score ยท Top Rated Plus โœ… 5,000+ workflows deployed ยท $5M+ saved ยท 100K+ hours of manual work eliminated โœ… AI agents in production handling 10,000+ calls/month โœ… Certified partners: Monday, Make, Vapi, Retell AI, Palantir Foundry โœ… Supported by Retailbox team (15K+ combined hours) for surge capacity โœ… Average response under 4 hours ยท US East Coast (West Palm Beach, FL) โœ… Available 10-30 hrs/week or full-time burst engagements ๐Ÿ† RECENT WINS (anonymized) โ€ข AI Copilot for $500M+ investment portal โ€” Salesforce + SharePoint + RAG, 4-month build โ€ข Multi-tenant AI SaaS for elder care lead intelligence โ€” scraping + AI scoring + dashboard โ€ข Healthcare wound care platform โ€” HIPAA-compliant, mobile + EMR + AI transcription โ€ข Estate Planning AI Copilot โ€” Claude + custom legal workflows for law firm โ€ข B2B Outbound System โ€” Apollo + Clay + Smartlead + AI personalization, 1,000+ leads/week โ€ข ERP transformation โ€” QuickBooks โ†’ Tryton migration, custom Python pipeline โ€ข AI Acquisition Engine โ€” Multi-source enrichment + LLM scoring for B2B sales team ๐ŸŒ INDUSTRIES Home Services & Trades (HVAC ยท Plumbing ยท Electrical ยท Roofing ยท Solar ยท Pool ยท Painting) ยท Healthcare & Medical (Clinics ยท Pharmacy ยท Health Insurance ยท EMR ยท HIPAA) ยท Financial Services (Mortgage ยท Insurance ยท Investment ยท Crypto ยท Payments) ยท Manufacturing (Cabinet ยท Furniture ยท Steel ยท Civil Engineering) ยท Real Estate & Property ยท Marketing & Sales Agencies (GHL ยท HubSpot) ยท Construction & Contractors ยท Legal & Compliance ยท Retail & E-commerce (Shopify ยท Amazon ยท WooCommerce) ยท SaaS & Tech Startups ยท Telecom ยท Trucking ยท and more. ๐Ÿค– WHAT I DELIVER AI Engineering โ€ข Custom AI agents (Claude, GPT, Gemini) with tool calling โ€ข MCP server development for enterprise systems โ€ข RAG with vector databases (Pinecone, Weaviate, Qdrant, pgvector) โ€ข LangChain, LangGraph, CrewAI orchestration โ€ข I use Claude Code, Cursor, Codex daily โ€” ship 5ร— faster Workflow Automation โ€ข n8n, Zapier, Make, Windmill, Power Automate โ€ข Custom Python/Node replacing fragile no-code chains โ€ข ETL pipelines (CRM โ†” data warehouse, AI training data, ERP migrations) โ€ข Event-driven systems, drip campaigns, scheduled reports CRM/ERP Integration & Architecture โ€ข HubSpot, Salesforce, Zoho, Monday, Pipedrive, Dynamics 365, GHL, Close CRM โ€ข NetSuite, Odoo, QuickBooks, Xero, Stripe โ€ข Field service โ€” ServiceTitan, Jobber, Housecall Pro โ€ข Healthcare โ€” eClinicalWorks, FHIR, HL7 โ€ข Multi-system architectures (5+ platforms unified) Full-Stack Development โ€ข React, Next.js, Node.js, Python, FastAPI, Django โ€ข Mobile โ€” React Native, native iOS/Android โ€ข AI dashboards, admin panels, internal tools โ€ข PostgreSQL, MongoDB, Redis DevOps & Cloud โ€ข AWS, GCP, Azure ยท Docker, Kubernetes, CI/CD โ€ข Production monitoring, observability, security โ€ข HIPAA / SOC2 / PCI-aware integrations Voice AI โ€” Vapi, Retell AI, Bland AI, Twilio (when use case fits) ๐ŸŽฏ COMMON ASKS โ€ข Claude/GPT integration into your app or CRM โ€ข AI SDR that books meetings (Apollo + Clay + Smartlead + Claude) โ€ข RAG chatbot trained on your company data โ€ข CRM automation with AI lead scoring (HubSpot/SF/Zoho/GHL) โ€ข Field service workflow (ServiceTitan/Jobber + AI) โ€ข Internal AI dashboard for ops team (Retool/custom) โ€ข Migrate Zapier/Make spaghetti to maintainable code โ€ข AI-powered mobile MVP (React Native + Claude) โ€ข Voice AI receptionist (Vapi or Retell + CRM sync) โ€ข ETL pipeline (QuickBooks/NetSuite โ†” data warehouse) โ€ข Custom MCP server for your team's Claude ๐ŸŽฏ IDEAL FIT I serve all sizes: โ€ข SMB ($1K-$10K) โ€” small but specific automation that pays back fast โ€ข Mid-market ($10K-$100K) โ€” multi-month engagements, multi-system builds โ€ข Enterprise ($100K-$500K+) โ€” strategic platform builds, AI-native systems Engagement models: โ€ข $2K-$15K fixed scope (1-6 weeks) โ€ข $50K+ for AI/full-stack platform builds โ€ข $95-125/hr fractional (10-30 hrs/week, weekly Slack sprints) โ€ข Long-term Tech Support retainers ๐Ÿ’ผ HOW I WORK Week 1 โ€” discovery + architecture ยท Week 2-N โ€” weekly build sprints with daily Slack ยท Final week โ€” 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. ๐Ÿ’ฌ 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
Osama S.

Islamabad, Pakistan

$40/hr
5.0
6 jobs

Integrated systems rarely break on the first successful API call. They break three weeks later: a failed Shopify webhook, an ERP order that never synced, a CRM contact missing from the pipeline, or POS inventory that no longer matches the store. I build and fix the middleware/API layer behind those systems. My strongest work is around Shopify, ERP, CRM, POS, and Laravel-based backend systems where product data, orders, inventory, customers, payments, and reporting all need to stay aligned. What I usually handle: * Shopify / Shopify Plus integrations and custom commerce workflows * ERP and CRM syncs: Acumatica, Salesforce, Zoho, HubSpot, SAP-style systems * POS and inventory workflows: Clover, store operations, loyalty, order flows * Laravel/PHP middleware, APIs, webhooks, queues, cron jobs, retries, and logs * Admin dashboards, reporting panels, and operational data models * Production debugging where the issue is hidden across multiple systems Relevant background: * Built and supported systems handling 24k+ products, 3M+ users, and 2,000+ locations * Led technical delivery across teams of 20+ * Worked across Shopify, Shopify Plus, Magento, BigCommerce, Acumatica, Salesforce, Zoho, Clover POS, Laravel, REST/GraphQL APIs, PostgreSQL, MySQL, AWS, Firebase, and payment systems I also take on SaaS MVPs and React Native app work when the project depends on backend architecture, integrations, subscriptions, analytics, or production stability. If your store, ERP, CRM, POS, or internal dashboard is held together by fragile syncs and unclear data flow, I can help trace where it breaks and make the system reliable.

  • Laravel
  • ERP Software
  • HubSpot
  • Shopify Plus
  • Magento
  • SAP
  • Acumatica
  • Salesforce
  • API Integration
  • SaaS Development
  • Web Application Development
  • Zoho CRM
  • JavaScript
  • Ecommerce Platform
  • Stripe
  • Clover POS System
  • Firebase
  • Liquid
  • Google Analytics 4
Usama R.

Faisalabad, Pakistan

$20/hr
5.0
4 jobs

Iโ€™m a Full-Stack MERN Engineer and SaaS Architect with 6+ years of experience building scalable, production-ready web applications. I specialize in React.js, Next.js, Node.js, Express.js, MongoDB, PostgreSQL, TypeScript, and modern cloud-based architectures. I help startups, SaaS companies, and growing businesses build fast, scalable, and maintainable applications with clean frontend experiences and robust backend systems. Core Skills & Technologies: โ€ข React.js / Next.js โ€ข Node.js / Express.js โ€ข MongoDB / PostgreSQL โ€ข TypeScript / JavaScript โ€ข REST APIs / GraphQL APIs โ€ข Offline-First Architecture / PWA Development โ€ข Multi Tenant Architecture โ€ข Tailwind CSS / Material UI โ€ข Redux / Zustand โ€ข Prisma ORM / Drizzle ORM โ€ข AWS / Docker / CI-CD Pipelines โ€ข Microservices Architecture โ€ข SaaS Development โ€ข ERP & POS Systems โ€ข AI Integrations & Automation โ€ข OpenAI API / n8n / Zapier / Make โ€ข Authentication & Role-Based Access โ€ข Stripe Payment Integration โ€ข Lovable/Replit โ€ข Performance Optimization Projects & Experience: **Rx-Pulse (Offline-First Pharmacy ERP & POS)** Built a resilient, multi-branch cloud ERP and POS platform utilizing an Offline-First architecture (PWA/IndexedDB sync) to ensure zero-downtime retail billing during internet outages. Features real-time inventory management, keyboard-first workflows, and complex data-merging conflict resolution across branches.. **SocialTip (SaaS Platform)** Worked on scalable backend services, Stripe payment integration, API development, and microservice architecture for a high-traffic social tipping platform. **CRM & Custom ERP Dashboards** Developed enterprise-level dashboards and management systems with complex workflows, analytics, reporting, project tracking, and multi-role management for service businesses. **AI & Workflow Automation** Built AI-powered automation systems using OpenAI, n8n, Zapier, and Make to reduce manual work and improve operational efficiency. One solution included an AI voice receptionist capable of handling calls, scheduling appointments, and automating customer interactions. What You Can Expect: โ€ข Clean, scalable, maintainable code โ€ข Strong frontend + backend architecture โ€ข Responsive and modern UI/UX โ€ข Clear communication and regular updates โ€ข Reliable delivery and long-term support โ€ข Business-focused problem solving Iโ€™m available for: โ€ข Full-Stack MERN Development โ€ข SaaS Application Development โ€ข ERP / POS Systems โ€ข Offline-First ERP / POS Systems โ€ข Custom Dashboards & Admin Panels โ€ข API Development & Integrations โ€ข AI-Powered Applications โ€ข Lovable/Replit/Cursor/Claude code fix โ€ข Automation Systems โ€ข Long-Term Product Development If youโ€™re looking for a developer who understands both technology and business requirements, feel free to send me a message and discuss your project.

  • React
  • JavaScript
  • MongoDB
  • Node.js
  • Next.js
  • Redux
  • FastAPI
  • Automation
  • MERN Stack
  • PostgreSQL
  • Electron
  • MySQL
  • Redis
  • ERP Software
  • Point of Sale & Payment Systems
  • Supabase
  • REST API
  • Back-End Development
  • Vibe
Zumayyah J.

Abeokuta, Nigeria

$10/hr
5.0
4 jobs

๐Ÿš€ If you are looking to transform your innovative idea into a fully functional application, MVP, or website using Vibe Coding with a Lovable Expert on Lovable.dev, Replit, Base44, and Bolt/v0, you are in the right place. โšก I am a Vibe Coding specialist and Lovable Expert focused on building fast, scalable, and production-ready applications using Lovable.dev, Replit, Base44, and Bolt/v0. ๐Ÿ’ผ I helped a startup move from a broken, delayed MVP to a fully launched, revenue-ready SaaS product. The platform had broken authentication, slow dashboards, poor UI/UX, and weak backend structure. Using Vibe Coding with Lovable.dev, Replit, Base44, and Bolt/v0, I rebuilt the system into a fast, secure, and scalable product. We launched with working dashboards, stable authentication, Stripe and PayPal integrations, automation workflows, and AI-powered features. I focus on execution speed, clean systems, and launch-ready products using Vibe Coding and modern tools like Lovable.dev, Replit, Base44, and Bolt/v0. Core Vibe Coding Expertise (Lovable.dev | Replit | Base44 | Bolt/v0): ๐Ÿ”น MVP development using Vibe Coding for fast validation and launch ๐Ÿ”น SaaS development with Lovable.dev and Base44 ๐Ÿ”น Web app and dashboard development using Bolt/v0 and Replit ๐Ÿ”น Rapid prototyping and iteration with Vibe Coding workflows ๐Ÿ”น Fixing, rebuilding, and scaling existing products using Lovable.dev and Bolt/v0 Vibe Coding Stack and Development Approach: ๐Ÿ”น Frontend development using Vibe Coding with React, Nextjs, Tailwind CSS via Lovable.dev, Replit, and Bolt/v0 ๐Ÿ”น Backend development structured through Vibe Coding workflows using Nodejs, Expressjs, and Base44 ๐Ÿ”น Database systems integrated with Vibe Coding: Supabase, Firebase, PostgreSQL, MySQL, MongoDB ๐Ÿ”น Cloud and infrastructure aligned with Vibe Coding: AWS, AWS DynamoDB, cloud deployment, edge functions ๐Ÿ”น API integrations built into Vibe Coding systems: REST API, GraphQL, Stripe integration, PayPal integration ๐Ÿ”น Authentication, RLS policies, and secure portals implemented through Lovable.dev and Supabase ๐Ÿ”น Automation and workflows within Vibe Coding: Makecom, n8n, Zapier, webhooks, async jobs AI Development with Vibe Coding: ๐Ÿ”น OpenAI integration, Gemini integration, Claude Code using Vibe Coding workflows ๐Ÿ”น AI chatbots, AI content generation, and semantic search using LangChain and pgvector ๐Ÿ”น Real-time sync and AI-powered features integrated into Lovable.dev and Bolt/v0 apps What I Build with Vibe Coding: ๐Ÿ”น MVPs for startups using Lovable.dev and Replit ๐Ÿ”น SaaS platforms built with Base44 and Bolt/v0 ๐Ÿ”น Web applications and dashboards using Vibe Coding ๐Ÿ”น AI-powered tools integrated into modern Vibe Coding stacks ๐Ÿ”น Client portals, internal tools, CRM systems, ERP systems ๐Ÿ”น Marketplace platforms and scalable applications ๐Ÿ”น Mobile-ready applications using Vibe Coding-compatible tools like Flutter, React Native, and Expo I also support product scope, user journey, revenue model, and scale readiness, ensuring every product built with Vibe Coding on Lovable.dev, Replit, Base44, and Bolt/v0 is ready for real users. If your project is stuck, unfinished, slow, or not converting users, I can fix and relaunch it using Vibe Coding with Lovable.dev, Replit, Base44, and Bolt/v0. I provide full startup launch support from idea to MVP to scalable product using Vibe Coding. ๐Ÿ“ฉ Send me a message with your idea, and Iโ€™ll show you the fastest path to launch. ๐Ÿ› ๏ธ Skills & Deliverables: Lovable | Base44 | Supabase | React | Next | Node| Express| PostgreSQL | Tailwind CSS | Full Stack Development | AI App Development | SaaS Development | MVP Development | Web App Development | Mobile Responsive Design | UI/UX Design | Dashboard Development | Client Portals | Marketplace Development | CRM Development | ERP Systems | API Integration | REST API | GraphQL | Stripe Integration | Authentication | Database Design | Cloud Deployment | Automation | Make | n8n | Zapier | OpenAI Integration | Gemini Integration | AI Chatbots | Workflow Automation | Bug Fixing | Performance Optimization | Scalable Architecture | Product Strategy | Rapid Prototyping | Startup Launch Support. Lovabledev | Lovable AI | Base44 | Replit | Cursor | Boltnew | Bolt | v0 | React | Nextjs | Nodejs | Expressjs | Tailwind CSS | Supabase | Firebase | Bubbleio | Flutter | FlutterFlow | React Native | Expo | PostgreSQL | MySQL | MongoDB | AWS | AWS DynamoDB | pgvector | Full Stack Developer | Full Stack Development | AI Developer | AI App Development | Web Developer | Web Development | Website Development | Web Design | Web App Development | Mobile App Development | Frontend Development | Backend Development | UI/UX Design | SaaS Developer | SaaS Development | MVP Developer | MVP Development | Startup Launch | Idea to MVP | Marketplace Development | Marketplace Apps | Dashboard Development | Dashboards | Client Portals | Internal Tools | CRM Development | ERP Systems | Analytics Platforms | Secure Portals | Scalable Apps

  • Android App Development
  • iOS Development
  • Artificial Intelligence
  • AI Development
  • Supabase
  • API Integration
  • SaaS Development
  • Low-Code Development
  • Vercel
  • Claude
  • LLM Prompt
  • AI App Development
  • Back-End Development
  • No-Code Development
  • Web Application Development
  • Full-Stack Development
  • AI Chatbot
  • Web Development
  • Next.js
  • Replit
John P.

Grand Prairie, Texas

$54/hr
5.0
2 jobs

I am a Full Stack Developer specializing in Python backend systems, React/Next.js frontend development, PostgreSQL databases, Odoo customization, CRM automation, and API integrations. I work with Python, Django, React, Next.js, TypeScript, PostgreSQL, Supabase, Stripe, Odoo, HubSpot, Zoho CRM, HighLevel, n8n, Zapier, APIs, webhooks, and AWS to build practical business systems that solve real operational problems. My experience includes building backend logic, developing clean frontend interfaces, customizing Odoo modules, automating CRM workflows, connecting third-party platforms, and managing database-driven applications. I can support ERP and CRM processes, improve lead pipelines, automate repetitive tasks, sync customer data, and integrate tools through APIs and webhooks. I also work with modern SaaS stacks, including Supabase, Vercel, Stripe, Notion, and AI tools like Claude, where needed for automation, dashboards, internal tools, and business applications. My main focus is building reliable, useful systems for businesses - ERP customization, CRM automation, API integration, database operations, workflow improvement, and full-stack web development. Letโ€™s connect!

  • Full-Stack Development
  • Next.js
  • React
  • Python
  • TypeScript
  • Vercel
  • Supabase
  • Stripe
  • Odoo
  • HubSpot
  • PostgreSQL
  • Zoho CRM
  • SQL
  • API
  • CRM Automation
  • Amazon Web Services
  • Claude
  • Zapier
  • Automation
  • Notion

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