I help businesses build scalable software, AI tools, and high-performance eCommerce platforms. With 14+ years of experience, I’ve delivered complex systems for companies like "Google, Cisco Systems, Reddit, Vivint Inc, Upwork", and hundreds of startups worldwide. My focus is simple: "build reliable systems that scale and drive business growth." If you're launching a startup, building a SaaS platform, scaling an eCommerce store, or adding AI to your product, I can help you design and build the right solution. ⭐ What I Can Build for You • AI tools and intelligent automations • Custom SaaS platforms • Magento and Shopify eCommerce systems • Full-stack web applications • iOS and Android mobile apps • Scalable backend APIs and microservices • Cloud infrastructure and DevOps pipelines ⭐ AI & Automation Expertise • AI-powered apps using OpenAI and LLMs • LangChain based AI workflows • Custom AI agents and automation pipelines • AI integrations for SaaS and business systems • Chatbots, recommendation engines, and AI assistants ⭐ eCommerce Expertise • Magento 1 & Magento 2 development • Shopify custom apps and integrations • Payment gateway integrations • High-performance store optimization • Custom checkout flows and order automation ⭐ Full Stack Development • React, Angular, Vue applications • Node.js backend systems • REST APIs and GraphQL services • Enterprise-grade architecture and system design ⭐ Mobile Applications • iOS apps using Swift • Android apps using Kotlin • Cross-platform apps using React Native and Flutter ⭐ Cloud & Infrastructure • AWS, Google Cloud, Azure • Docker, Terraform, AWS CDK • CI/CD pipelines and scalable deployments ⭐ Technologies Languages • JavaScript, TypeScript, Python, Java, Ruby, C#, Swift, Kotlin Frameworks • React, Angular, Vue, Django, Spring Boot, Ruby on Rails Databases • PostgreSQL, MySQL, MongoDB, DynamoDB AI Stack • OpenAI, LangChain, Hugging Face, TensorFlow ⭐ Credentials • Expert-Vetted & Top Rated Plus on Upwork • 5,650+ hours worked • 100% Job Success Score • 14+ years in software engineering and technical leadership • Salesforce Marketing Cloud (SFMC) — Content Builder, Email Studio, Journey Builder • Salesforce CRM integrations and API work • AMPscript and SSJS for dynamic content and personalization • HTML email development, responsive design, Outlook compatibility • Email marketing platforms more broadly: SFMC, Pardot, Mailchimp, Klaviyo, HubSpot, SendGrid • Litmus and Email on Acid for cross-client QA If you're looking for a "Senior engineer who can architect, build, and scale your product", feel free to reach out. Let’s build something great.

Experienced in delivering seamless integrations across a diverse ecosystem of platforms: - Marketplaces: Amazon, Zalando, Bol, Winkelstraat.nl, Miinto, Spartoo, GlovoApp, UberEats, DoorDash, Kleertjes, Worten, Grubhub, Deliverect - eCommerce Platforms: WooCommerce, PrestaShop, Shopify, Lightspeed, Magento - CRM & Marketing Automation: Salesforce, Go High Level - ERP & EDI Systems: Odoo, SAP Business One, Microsoft Dynamics, Oracle Cloud ERP Technical Skills - Programming & Frameworks: Node.js, Angular, Next.js, React, Python, Go (GoLang) - Databases: MySQL, MongoDB, DynamoDB, Elasticsearch - Cloud & DevOps: AWS Lambda, Docker - APIs & Data: REST, GraphQL, MCP, A2A Artificial Intelligence & Automation - LLM Providers: OpenAI (GPT-4o, o1), Anthropic (Claude), local models (Ollama, LLaMA, Mistral, Qwen) - Agentic Frameworks: MCP (Model Context Protocol), A2A (Agent-to-Agent), multi-agent orchestration - Memory & Knowledge: RAG pipelines, vector databases, long-term memory, context management - Voice & Video: LiveKit, ElevenLabs, Deepgram - Tooling: Claude Code, Cursor

🚀 Senior AI Full Stack Developer | AI Agents, RAG Systems, OpenAI Integration, SaaS Platforms | React · Next.js · Node.js · Python · AWS I'm an AI-centric Full Stack Developer with 7+ years of experience building scalable SaaS platforms, AI-powered applications, and enterprise-grade web products. I specialize in combining modern full-stack development with Generative AI, Large Language Models (LLMs), AI Agents, and Retrieval-Augmented Generation (RAG) systems to help businesses automate workflows, improve customer experiences, and launch intelligent products faster. From MVPs to enterprise-scale platforms, I design and build production-ready applications that are scalable, secure, and optimized for long-term growth. → AI & Generative AI Expertise ✔ AI Agents & Workflow Automation Build intelligent AI agents capable of automating customer support, internal operations, lead qualification, content generation, and business workflows. ✔ OpenAI & LLM Integration OpenAI GPT-4o, GPT-4, Assistants API, Function Calling, Structured Outputs, AI Copilots, Conversational AI, Knowledge Assistants. ✔ RAG (Retrieval-Augmented Generation) Document ingestion pipelines, semantic search, knowledge bases, vector search, contextual AI responses, and enterprise AI assistants. ✔ Vector Databases Pinecone, FAISS, Weaviate, ChromaDB, Embeddings, Hybrid Search, Semantic Retrieval. ✔ AI-Powered SaaS Applications Customer support automation, AI chatbots, internal knowledge assistants, AI content generation platforms, and AI-driven business tools. ✔ AI Image Generation Stable Diffusion integrations, AI-powered image generation workflows, prompt engineering, AI-assisted media generation platforms. → Full Stack Development Expertise ✔ Frontend Development React.js, Next.js, TypeScript, JavaScript, Tailwind CSS, Material UI, Responsive UI Development. ✔ Backend Development Node.js, Express.js, FastAPI, Django, Microservices Architecture, Event-Driven Systems. ✔ API Development REST APIs, GraphQL APIs, WebSockets, Real-Time Applications, Third-Party Integrations. ✔ Databases PostgreSQL, MongoDB, MySQL, DynamoDB, Redis, Supabase. ✔ Cloud & Infrastructure AWS Lambda, EC2, S3, API Gateway, Serverless Architecture, Docker, Kubernetes, CI/CD Pipelines. ✔ Security & Authentication OAuth, JWT, RBAC, Rate Limiting, OWASP Security Best Practices. → AI Projects & Industry Experience 🔹 AI Customer Support Automation Platforms Built AI agents that automate ticket triaging, knowledge retrieval, and customer support workflows using OpenAI and RAG architectures. 🔹 AI Knowledge Assistants Developed enterprise AI assistants with semantic search capabilities across Google Docs, Confluence, and internal documentation. 🔹 AI Image Generation Platforms Built AI-powered fashion and apparel image generation systems using Stable Diffusion and intelligent prompt enrichment. 🔹 AI-Powered Automation Systems Created automated content generation and workflow orchestration platforms using OpenAI and cloud-native architectures. 🔹 Healthcare AI Platforms Developed AI-enabled clinical trial and healthcare data management systems with serverless AWS architectures. → Why Clients Hire Me ✔ Strong AI + Full Stack combination ✔ Production-ready AI solutions, not demos ✔ Startup MVP to Enterprise experience ✔ Microservices & scalable architectures ✔ AWS cloud expertise ✔ Clean, maintainable codebases ✔ Fast communication & reliable delivery ✔ Long-term technical partnership mindset Services I Offer: • AI Agent Development • RAG Pipeline Development • OpenAI & LLM Integration • AI Chatbots & Knowledge Assistants • AI Workflow Automation • SaaS Product Development • Full Stack Web Applications • Next.js & React Development • Node.js & Python Development • AWS Serverless Development • Microservices Architecture • API Development & Integration • Real-Time Applications • Database Architecture & Optimization • AI Image Generation Platforms 📩 Looking to build an AI-powered SaaS product, AI agent, chatbot, internal knowledge assistant, automation platform, or scalable web application? Let's discuss your project. 🟢 Available for Long-Term Projects | Startup MVPs | AI Products | Enterprise Applications Keywords: AI Developer, AI Engineer, Generative AI Developer, OpenAI Developer, ChatGPT Developer, AI Agent Developer, AI Automation Developer, RAG Developer, LangChain Developer, LLM Engineer, AI SaaS Developer, Knowledge Assistant Developer, AI Chatbot Developer, Vector Database Developer, Pinecone Developer, Semantic Search, Retrieval-Augmented Generation, Next.js Developer, React Developer, Node.js Developer, Python Developer, AWS Developer, Serverless Developer, Full Stack Developer, SaaS Developer, Microservices Architect.

As a DevOps Engineer with extensive experience in Kubernetes, AWS, GCP, Azure, Docker, AKS, EKS, GKE, Git, Terraform, CloudFormation, Linux, and Bash, I have a proven track record of successfully implementing and managing cloud infrastructure and container orchestration for large-scale projects. I have a strong knowledge of CI/CD pipelines and automation tools, and I am skilled in designing and implementing cost-efficient, highly available, and scalable solutions. I have worked on multiple projects across different domains and have a passion for staying current with the latest technologies and industry trends. With a focus on continuous learning and improvement, I am committed to delivering high-quality solutions that meet the unique needs of each client. Key Skills: • Kubernetes, AWS, GCP, Azure, Docker, AKS, EKS, GKE, Git, Terraform, CloudFormation, Linux, and Bash • CI/CD pipelines and automation tools • Designing and implementing cost-efficient, highly available, and scalable solutions • Project management and cross-functional collaboration • Troubleshooting and problem-solving

Senior Full-Stack SaaS Developer | Node.js, Supabase, AI Integrations & Scalable APIs 𝐈'𝐦 𝐏𝐫𝐚𝐦𝐞𝐞𝐭, a Full-Stack Developer with 6+ years of experience building SaaS platforms, AI-powered applications, scalable APIs, and cloud-native systems for startups and growing businesses. I help founders and teams launch, scale, and optimize products using modern technologies like Node.js, Supabase, React, Next.js, PostgreSQL, AWS, OpenAI, Claude, and Stripe. What I Can Help You Build ✅ SaaS Applications & Multi-Tenant Platforms ✅ AI Applications (OpenAI, Claude, Gemini, RAG, AI Agents) ✅ Custom APIs & Third-Party Integrations ✅ Supabase Applications (Auth, RLS, Realtime, Edge Functions) ✅ Stripe Subscriptions & Marketplace Payments ✅ Admin Dashboards & Internal Tools ✅ Automation Workflows & Business Process Automation ✅ Cloud Infrastructure & Production Deployments Core Expertise ============= Backend Development --------------------------- #Node.js, Express.js, NestJS #REST APIs, GraphQL, Microservices #Authentication & Authorization #Queue Systems & Background Jobs AI & Automation ------------------- #OpenAI, Claude, Gemini #RAG Pipelines #Vector Databases #AI Agents & Workflow Automation #Prompt Engineering Frontend Development --------------------------- #React.js #Next.js #TypeScript #Tailwind CSS Database & Cloud ---------------------- #Supabase #PostgreSQL #MongoDB #AWS #Docker #CI/CD Pipelines ((Why Clients Hire Me)) ==================== ✔ Product-minded developer, not just a coder ✔ Experience taking products from MVP to production ✔ Strong focus on scalability, security, and maintainability ✔ Fast communication and proactive problem-solving ✔ Comfortable working independently or with existing teams Whether you're building an AI startup, SaaS platform, marketplace, automation tool, or scaling an existing product, I can help turn ideas into reliable, production-ready applications. Let's discuss your project and build something exceptional

🏅 Microsoft Certified: Azure Developer Associate & DevOps Engineer Expert 🏅 AWS Certified Solutions Architect 💡𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 1. Full-Stack Web & Mobile Development ✔ Backend: ASP.NET Core, Node.js, Python (FastAPI), REST/GraphQL APIs ✔ Frontend: Angular, React, React Native, Next.js, Vue.js ✔ Mobile: Cross-platform apps (React Native, Flutter) ✔ CMS/Portals: SharePoint 2013/Online, SPFx Web Parts 2. Cloud & DevOps (Azure/AWS) ✔ Azure: App Services, Functions, Logic Apps, VMs, SQL, Cosmos DB, DevOps (CI/CD Pipelines) ✔ AWS: DynamoDB, Aurora, Lambda, EC2, S3, CloudFormation ✔ Serverless & Microservices Architectures ✔ Migration Specialization – Lift-and-shift, modernization, hybrid cloud 3. AI & Automation ✔ AI/ML Integration: OpenAI, LangChain, Hugging Face (NLP/LLM), FAISS ✔ Models: De Vinci, Ada, Custom Fine-Tuning ✔ AI-powered apps: Chatbots, Document Analyzers, Predictive Analytics 4. QA & Testing Frameworks ✔ Automation Testing: Appium, Cypress, WebDriver IO ✔ API Testing: Postman, Swagger ✔ Project Tracking: Jira, Azure DevOps 🏆 𝗪𝗵𝗮𝘁 𝗦𝗲𝘁𝘀 𝗠𝗲 𝗔𝗽𝗮𝗿𝘁? Deep Technical Breadth – 50+ Azure/AWS services mastered, 12+ years in full-stack development. Client-Centric Approach – Transparent communication, agile collaboration, and long-term partnerships. Future-Ready Solutions – AI-driven, scalable, and secure architectures tailored to your needs. 🔹𝗟𝗲𝘁’𝘀 𝗕𝘂𝗶𝗹𝗱 𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗔𝗺𝗮𝘇𝗶𝗻𝗴! 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁❟ 𝗮𝗻𝗱 𝗜’𝗹𝗹 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝗯𝗲𝘆𝗼𝗻𝗱 𝗲𝘅𝗽𝗲𝗰𝘁𝗮𝘁𝗶𝗼𝗻𝘀｡

Get $100 AWS Credit + a complimentary, No-Strings-Attached AWS Cloud Assessment. ⭐⭐⭐⭐⭐ "Rarely have I worked with someone as skilled and thorough as Carlos is. Setting up my team on git, configuring our AWS servers to be safe, scalable, and fast, working with my developers to optimize code, being a good person". James Rector, UPWORK 100+ 5-star projects, I'm one of highest-rated and highest-earning AWS freelancer on UPWORK. I have been helping SaaS businesses to build scalable, secure, highly available and high-performing environments on AWS following DevOps/Dev Ops best practices. Here is what I can help you with: ✅ Review of your AWS current architecture performance, security and costs ✅ Architecture of new AWS infrastructure and Data Pipelines ✅ Migrations to AWS, AWS Cost Reduction, Database Optimisations, DevOps Engineer ✅ Managed Services SLA Problems that I solve: ⚡️ Performance At Scale: I build and deploy industry-tested and proven infrastructure code that ensures your application runs and performs fast without compromising security. ⚡️ Cost Optimisation: My infrastructure architecture enables the efficient use of resources and can help you save up to 90% in your AWS costs ⚡️ Security & Compliance: I can help you Scale and innovate quicker while building a solid foundation that will help you maintain a secure, compliant environment. ⚡️ Training & DevOps. I can help you increase your team's technology adoption while automating your DevOps/ Dev Ops processes. Technologies that I adopt and I'm an expert at: ➡️. AWS services such as s EC2, ECS, EKS (Kubernetes), S3, RDS, Step Functions, Lambda, AWS Gateway API, DynamoDB, Beanstalk, Elasticache, SNS, SES, IAM, ControlTower, WAF, Shield, Cloudformation, Cloudfront, CloudWatch, VPC, Route 53, Certificate Manager and others. ➡️. Supporting services such as CDK, Terraform, Rancher, ISTIO, Prometheus, Grafana, Teleport, Papertrail, Graylog, New Relic, Dynatrace, DataDog, Kafka, NEO4J and Spot.io. ➡️. Strong CI/CD DevOps engineering using GitHub/BitBucket Pipelines, CircleCI, ARGOCD. Industries: - FinTech - Media - Ecomm - and more! Here are some of the case studies of the clients I have helped with: 1. MONETRACK - Deploying a client stack in minutes on AWS instead of weeks Industry: Finance Problem: An unreliable process that caused constant frustration and delays. Process: Each deployment would take days to weeks to be set up, requiring between 5-6 people. Results: They now deploy a client stack in minutes instead of weeks using AWS EKS and a customised CI/CD process. In addition, I have: · Improved deployment time from weeks to minutes. · 80% reduction in costs per deployment. · Secure alignment with their client's compliance requirements. 2. Tourism Media - Great flexibility, deploying applications faster and secure on AWS Industry: Media Problem: With no CI/CD integration across all deploys, the job to integrate each stack was inconsistent and pruned to errors. Process: Deployment was not consistent across the board; they were also not resource-friendly Result: They can now push out a consistent deployment process across the company while being quickly adopted by their teams. In addition, I also have: · Improved deployment time by 60% · 70% costs reduction in EC2 instances · Greater scalability and reliability than their Legacy infrastructure. 3. Value-Ad - Scale 10X more on AWS with great stability and without the extra cost. Industry: Finance Problem: An infrastructure that could not scale securely and effectively was harming their client base. Solution: Deploy a new AWS EKS (Kubernetes) environment that is scalable, highly available, secure (PCI-DSS compliant) and cost optimised using AWS Well Architect Framework best practices. Result: They can now handle 10X more requests with excellent stability and without extra cost than their legacy infrastructure. In addition, I have added: · Greater scalability and reliability · Deployments are simplified and done in minutes instead of hours · 32% cheaper than its previous infrastructure Now a bit of myself: I'm a passionate professional with 25 years of experience in enabling business strategies through the practical application of technology architecture principles, practices, and tools. User-centric and solution-oriented, I have managed projects and teams across Australia, New Zealand, the USA, Brazil, the UK, Ukraine, Singapore, Vietnam and India over the past 14 years. A problem-solver in a broad range of technology stacks covering Architecture, Development, Integration, Data, Infrastructure, and Support. Seamless configuration and migration include fast deployment of critical and complex workloads on the cloud with hands-on expertise in AWS Services. Send me a message. I would love to discuss your project.

I am an AWS-certified professional with over 5 years of experience specializing in backend development, DevOps engineering, and Kubernetes orchestration. My expertise lies in building scalable, secure, and efficient cloud infrastructures while integrating advanced AI/ML solutions to enhance business outcomes. ☞ Backend Development: Proficient in Node.js, Python, and PHP with hands-on experience in building serverless and containerized applications using frameworks like Serverless Framework, SAM, and SST. ☞ DevOps Expertise: Skilled in designing CI/CD pipelines, implementing Infrastructure as Code (Terraform, CloudFormation), and automating deployment workflows for high-traffic applications. ☞ Kubernetes Specialist: Extensive experience in deploying, managing, and scaling containerized applications on Kubernetes platforms like AWS EKS, GCP GKE, and Azure AKS. ☞ Security & Compliance: Strong knowledge of securing infrastructure and achieving compliance with frameworks like HIPAA, PCI-DSS, GDPR, and ISO standards. ☞ AI/ML Integration: Experience in integrating AWS AI/ML services such as Textract, Comprehend, Kendra, and Rekognition into applications for intelligent automation. Certifications: AWS Certified Solutions Architect – Associate AWS Certified Practitioner Toolkit: AWS, Terraform, Docker, Kubernetes, Jenkins, GitLab CI/CD, Python, Node.js, PHP, MySQL, PostgreSQL ..... Monitoring Tools: Prometheus, Grafana, New Relic

I’m an AWS Certified DevOps Engineer – Professional, as well as a certified Solutions Architect Associate and Developer Associate. I specialize in designing and implementing secure, scalable, and efficient cloud solutions. By leveraging AWS best practices and DevOps principles, I help organizations build systems that streamline development and operations while aligning with their business goals. I am expert in below Tools/Technologies, ✅ Cloud: AWS ✅ Operating systems: Ubuntu, Windows ✅ Dockerization and orchestration: Docker, Docker Swarm, EKS, ECS ✅ IaC implementation: CloudFormation, AWS SAM ✅ Microservices infrastructure design, development, and implementation: Docker and Kubernetes ✅ Database management: MySQL, MongoDB, DynamoDB, Oracle, MS SQL Server, AWS RDS ✅ Web services: Apache ✅ Hosting panels: cPanel I have been recognized by AWS with these certifications:- ✅ AWS Certified DevOps Engineer – Professional ✅ AWS Certified Solutions Architect Associate ✅ AWS Certified Developer Associate Thank You.

🏆 TOP-RATED PLUS (TOP 3% on Upwork) | 💭 Looking for a tech partner to bring your vision to life? Whether you're launching a startup, scaling an existing business, or pivoting your current venture - I help companies succeed as an Full Stack Developer with strong full-stack and cloud architecture expertise. I help turn prototypes built with Lovable, Base44, or Bolt.new into properly designed, production-ready products and MVPs - scalable, maintainable, and cost-effective. As an Full Stack Developer, I specialize in designing, building, and scaling reliable systems on AWS that power modern web and AI-driven applications. 🔍 What I Can Help You With: 🚀 MVP Development: As an Full Stack Developer, I build MVPs fast using scalable AWS services so you can validate ideas and monetize quickly. 🚀 Full-Stack & AWS Backend Development: End-to-end solutions led by an Full Stack Developer, combining robust back-end systems with modern front ends. 🚀 Custom Cloud Solutions: Thoughtfully designed AWS architectures crafted by an AWS Backend Developer to be cost-effective from day one and scale seamlessly with growth. 🚀 AI-Powered Tools: I integrate AI solutions into AWS-native back ends, leveraging my experience as an AWS Backend Developer. 🚀 Reliable Data Pipelines: Event-driven, serverless pipelines designed by an AWS Backend Developer for real-time, high-volume data processing. 🚀 Technical Leadership: As a senior AWS Backend Developer, I provide end-to-end guidance from architecture design to stable production operations. 👨‍💻 Tech I Work With: 💻 Backend / Frontend / Full-Stack Development (AWS-focused): ✔️ Python (Django / Flask / FastAPI) / Node.js / NestJS / Express.js ✔️ PostgreSQL / MongoDB ✔️ React / Next.js / JavaScript / TypeScript ✔️ HTML / CSS / Tailwind / MUI / Ant Design / shadcn/ui 🧠 AI & Machine Learning: ✔️ AWS Bedrock / LangChain / LangGraph / CrewAI / Hugging Face ✔️ Chatbot / AI Assistant / Agentic Applications / CopilotKit / AG-UI ✔️ Amazon Transcribe / Polly / Comprehend ✔️ RAG, Ragie.ai, Vector databases (Pinecone, Weaviate, Chroma, AWS OpenSearch, Supabase Vector Store) ✔️ OpenAI (GPT-5, GPT-4o, GPT-4o-mini, GPT-3, Realtime API, Whisper, TTS, DALL·E, Embeddings) ✔️ Anthropic Claude / Google Gemini / DeepSeek 🕸️ Web Scraping ✔️ Puppeteer / Selenium / Playwright ✔️ Crawlee / Apify / BrightData / Decodo / Oxylabs / SerpApi / ZenRows ☁️ AWS Cloud (Core Expertise of an AWS Backend Developer): ✔️ Serverless architectures, Lambda, Step Functions, API Gateway, S3, DynamoDB, SNS, SQS, and more 🚀 Infrastructure as Code & CI/CD: ✔️ AWS CDK / Terraform / Pulumi / Serverless Framework ✔️ GitHub Actions / GitLab CI/CD 🚀 Let’s Build Your Next Big Thing! 📊 As an Full Stack Developer with a decade of experience in software architecture and technical leadership, I design systems that are scalable, secure, and cost-efficient. If you’re looking for an Full Stack Developer who can own your infrastructure and backend end-to-end, you’re in the right place. 💼 Ready to partner? Message me today, and let’s get started!