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Solutions Architect and Cybersecurity Consultant with excellent knowledge in the Microsoft platform, having worked since the beginning of the career (more than 30 years of experience) with virtually all Microsoft products. Certificate MCITP, MCPD, MCTS, MCBMSP, MCBMSS, MCSE, MCDBA, MCSD, MCT. C|CT - Certified Cybersecurity Technician, working with Blue and Red Teams and with cybersecurity forensics. Consultant background with .NET and SQL related technologies and products on high transaction applications in small and large enterprise scenarios. Specialties: Excelent experience in development, management, configuration and troubleshooting of IT, involving all Microsoft technologies, especially SQL Server, Azure and .NET

SAP consultant & developer with 20 years of development experience, with a strong focus on manufacturing, logistics and retail areas. I have worked mostly as a software architect/developer, creating several UI5/AddOns solutions that simplify and streamline operations for different business types (machinery, services, textile/footwear, retail, shopfloor, etc) for SAP R3 and B1 systems. Explore my Upwork profile to learn about some SAP projects I have contributed to as a logistics/financial consultant, as well as AddOns/SAPUI5 apps I designed and developed for customers around the world (Portugal, UK, US, Angola, etc).

I am a highly skilled open source system administrator with over 18 years of experience in the field. I have a strong background in Linux administration, network security, and cloud computing, and have worked on a variety of projects for clients ranging from small startups to large enterprises. As for my technical skills and knowledge in the IT business i've has contributed in many OpenSource software projects and also participated at ITIL Best Practices course, (Beginner,Intermediate and Advanced) Perl course from Stonehenge Consulting Services and MySQL/PHP training Course from PHP Zend. I'm currently applying for AWS Solutions Architect Pro. I’ve worked in a Telco company Optimus, as Technical Supervisor and Technical Leader for the Clix Portal and all its infrastructure for 8 years. I have also founded a digital experience company, as the role of Technical Director. I have a large experience with IT management teams and system administration where i've managed complex IT solutions to face large volumes of traffic from challenging projects for clients like BCP, the largest private Portuguese bank and Vodafone. I’m also a heavy AWS and AZURE user managing several Linux instances for clients sites and applications. Currently i’m a SysAdmin/DevOps consultant managing several clients remotely and i would like to help you and your team manage, maintain and improve any aspect of your infrastructure. I'm also interested in designing and implementing web systems architecture and security systems/solutions. Skills: Linux administration (Ubuntu, CentOS, Red Hat) Network security (firewalls, SLBs, intrusion detection/prevention) Cloud computing (AWS, Google Cloud, Microsoft Azure) WebServer Optimisation (Apache2,NGINX) Scripting (Bash, Perl) Wordpress Optimisation (Cloudflare, WP-Rocket) Database administration (MySQL, Meiisearch) Continuous integration/deployment (GIT automation) Experience: Implemented network security measures for a large e-commerce company, resulting in a 50% decrease in security incidents. Designed and managed a highly available cloud infrastructure for a SaaS startup, improving reliability and reducing downtime by 80%. Automated server provisioning and deployment processes for a financial services firm, reducing the time required for new server setup by 75%. Provided ongoing support and maintenance for a range of open source software systems, including web servers, databases, and monitoring tools. Education: Bachelor of Information Management from Nova IMS Certifications: ITIL Best Practices PHP Zend AWS Certified Cloud Practitioner Perl course from Stonehenge Consulting Services I am a highly motivated individual with a passion for open source technology and a commitment to delivering exceptional results for my clients. I am available for full-time or project-based work, and am always eager to take on new and challenging projects.

⭐ Fractional CTO, AI Architect & Technical Advisor helping SaaS startups build, ship and grow AI-powered products from MVP to enterprise. 🚀 Harvard-certified AI Developer & Python Developer | 10+ years Full Stack Development | Senior React, Python & Node.js Software Engineer 🏆 100% client satisfaction | $1M+ saved via AI workflows | 40+ projects: FinTech, Healthcare, EdTech, LegalTech & SaaS 🎯 WHO I AM & HOW I HELP I'm a Fractional CTO & AI Solution Architect helping SaaS founders and non-technical CEOs turn vision into production-ready software. My work spans AI architecture, machine learning consultant work, Gen AI consultant & AI consulting projects - without a full-time CTO cost As a Fractional CTO, I solve problems like: → We need a SaaS product but have no technical co-founder → We want to integrate LLMs, RAG, or AI automation but don't know where to start → Our architecture won't scale and dev is too slow → We need to modernize our stack and migrate to AWS or Azure → We need AI agent automation (n8n, custom pipelines), but no one can build it in-house 🏅 MY EXPERTISE Case 1 - Fractional CTO & AI Architect for LegalTech SaaS Built a multi-tenant platform as SAAS developer: NestJS, Next.js, React, TypeScript, PostgreSQL, Azure, Terraform. AI Augmentation Layer: document extraction (Azure Document Intelligence), RAG research, AI-assisted drafting; Solution Architect, project manager. Case 2 - Fractional CTO & AI Architect for a Healthcare Monitoring AI Platform Compliant SaaS: Python, FastAPI, PostgreSQL, WebSocket alerts, React. HIPAA/GDPR, Docker CI/CD. ML pipelines, computer vision models; data scientist, data analyst, AI Consultant, Virtual CTO Case 3 - Full Stack AI Developer for an EdTech LMS LMS build: React, TypeScript, Supabase, AWS (Cognito, Lambda). NLP personalization, GPT-3-powered recommendations, Moodle chatbot plugin; Web developer Case 4 - Fractional CTO & Technical Advisor for a FinTech AI Startup Engineering: NestJS, Java, Azure SQL, Service Bus, blockchain-based payments, React frontend, AI content personalization, gamification; Solution Architect, AI engineer, Project Management Case 5 - AI Architect & AI Engineer: RAG, NLP & Speech Systems RAG platforms (Pinecone, OpenAI), speech intelligence (Deepgram, LangChain, FAISS), CRM automation (Anthropic/Claude). AI Agent Development and AI agent n8n automation, working as AI agent builder & AI agent creator. Agentic AI patterns, AI Model Integration - AI automation agency-level scope Case 6 - Full Stack Engineer for CRM & Auth Platform Microservices: gRPC, MongoDB, Neo4j. Multi-tenant auth (Azure AD); full stack developer, Cloud Architect advisor, AI Software Architect, data analysis pipelines. ⚡ WHERE I CAN BE HELPFUL ✅ Fractional CTO - strategy, leadership, team building for SaaS startups, virtual CTO services ✅ Technical Advisory - code audits, architecture reviews, cloud migration (AWS/Azure), Cloud Architect guidance ✅ Full Stack Development - React, Next.js, Node.js, Python, TypeScript, JavaScript, React Native, React for mobile & Web development ✅ AI & LLM Integration - RAG, LLM agents, NLP, Computer Vision, ML, chatbots, Generative AI Agent Development ✅ AI Architect & SaaS Architecture - multi-tenant, API-first, compliance, scaling, Software Architecture & Design ✅ Data & Analytics - SQL, pipelines, data visualization, ML analytics, data science, data analysis ✅ DevOps - AWS, Azure, Terraform, Docker, ArgoCD, CI/CD, Firebase support ✅ Mobile App Development - React Native, Android App Development, cross-platform SAAS mobile features 👨🏻‍💻 TOOLS & TECHNOLOGIES Frontend: React, Next.js, Angular, Vue.js, HTML, CSS, JavaScript, TypeScript, Tailwind, MUI, React Native Backend: Node.js, NestJS, Express, Python, Java, FastAPI, Django, Flask, GraphQL AI/ML: GPT, GPT-3, Claude, RAG, LangChain, Pinecone, FAISS, NLP, Deepgram, PyTorch, TensorFlow, ML, Deep learning Cloud: AWS (Cognito, Lambda, EKS, S3), Azure (AI Foundry, Document Intelligence, APIM) DB: PostgreSQL, MongoDB, SQL, Neo4j, Pinecone, Qdrant DevOps: Docker, Terraform, Pulumi, ArgoCD APIs: OpenAI, Anthropic, Stripe, Pipedrive, MS Graph, REST, GraphQL, gRPC 🔄 HOW WE WORK TOGETHER Discovery Call - We discuss goals, challenges and product vision Technical Audit & Roadmap - I audit your stack and deliver a clear plan (Product Development, Solution Architecture, AI Development) Build & Ship - Weekly milestones, production-quality code (AI Agents, AI Automation, agentic AI workflows) Scale & Optimize - Performance tuning, AI automation, cost reduction, growth prep 🟢 MY CORE FOCUS AREAS SaaS product development (multi-tenant, API-first, AI-native) Healthcare & MedTech (compliance, real-time monitoring, HIPAA/GDPR) LegalTech (document intelligence, workflow AI automation, AI research) EdTech & LMS platforms (ML, personalized learning, analytics) API integration & platform scaling (CRM, ERP, real-time sync) AI-powered automations & AI automations (LLMs, RAG, NLP)

I am a software engineer with 10 years of experience in software development using J2EE and FE technologies. I have a background in building web services, scalable architectures, cloud technologies, and data management. Core experience: • Web Services, Microservices, REST APIs • Agile Scalable Architectures, High Load Systems, Cloud Technologies, Data Management • Java Performance optimization, Bottlenecks, Concurrency and Multithreading • Front-End, Mobile Application and Desktop Development • Agile Development, CI/CD practices, Security Compliance and more Key skills: • Java · Kotlin · Concurrency & Multithreading · JVM & GC tuning • Spring Framework · RESTful API · Security & OAuth 2.0 · SSL · DNS • Micro services · DigitalOcean · AWS · ActiveMQ · Kafka · RabbitMQ • AI, MCP, prompt engineering • MySQL · PostgreSQL · Oracle · MongoDB · Redis · Hibernate · CRUD & POJO • JS/TS · React · Angular · jQuery · Bootstrap · Thymeleaf · Websockets · SPA · Node.js · Vue.js • RCP · OSGi · EMF · Cross-Platform Apps · SWT • Financial Protocols: FIX, FIX 4.2, FIX 5.0, Arrowhead, Swift I’m proactive and self-motivated developer, energetic and driven by engineering challenges which add maximum value to company and users. I will gladly be a part of a professional team that values honesty and good-natured communication

I'm a Power Platform passionate (and developer) with more than 15 years of experience providing high quality solutions on SharePoint and Power Platform. I have expertise in all versions of SharePoint on-prem from 2007 to 2019, and specially on SharePoint online (Office365). I'm also very experienced with Power Platform stack, namely Power Automate (Cloud and Desktop), PowerBI and PowerApps, that I've been working on since it's inception, building very complete, integrated and robust business applications. Not only a developer, I also act as a consultant advising the clients on the best approaches when gathering requirements.