Hire the Best AI Freelancers
in Portugal
Machico, Portugal
⭐️ Top Rated Plus Freelancer I help businesses automate complex workflows, build AI-powered products, and unlock data-driven insights that scale. With a background in AI engineering, MLOps, and data science, I specialize in designing custom AI systems — from strategy to deployment — that streamline operations, enhance decision-making, and drive measurable ROI. 👉Core Skills & Expertise 🧠 Prompt Engineering — designing structured, context-aware prompts for reliable and scalable LLM outputs 🤖 GPT Builder / Custom AI Agent Development — creating tailored GPTs and agentic systems for business use cases ⚙️ AI Automation Workflows — integrating APIs, scripts, and tools like Zapier, Make, and LangChain to automate complex operations 📊 Data Analysis & Visualization — transforming raw data into clear insights using Python (Pandas, Plotly, Power BI) 🧩 Data Modeling & ETL Design — architecting robust pipelines and data models for scalable analytics 🔬 Machine Learning Engineering — developing, training, and deploying ML models in production environments (Azure, AWS, GCP) 📈 Statistical Modeling — applying regression, forecasting, and probabilistic modeling to optimize decisions 🧮 MLOps & Deployment — CI/CD for AI systems, monitoring performance, and automating retraining pipelines 🧰 Software & Cloud Engineering — Python, FastAPI, SQL, Docker, Azure Functions, and GitHub Actions 🎯 AI Strategy & Consulting — bridging business goals with technical execution through clear, actionable roadmaps 👉Whether you’re looking to: - Integrate AI into existing systems (LLMs, computer vision, or predictive analytics) - Automate repetitive business processes using Python, APIs, and no/low-code tools - Develop intelligent dashboards or agents that understand and act on data - Build end-to-end machine learning pipelines in Azure, AWS, or GCP - Transform messy data into actionable business intelligence …I can help you go from idea → prototype → production — without the technical chaos. My clients value my ability to combine deep technical expertise (Azure Functions, LangChain, GPT APIs, SQL/ETL, MLOps) with a consultative approach — ensuring every solution is not just functional, but aligned with your strategic goals. Let’s build something intelligent together.
- Machine Learning Model
- Data Science
- Data Visualization
- Data Mining
- Data Analysis
- Data Analytics & Visualization Software
- Data Cleaning
- API
- AI Development
Lisbon, Portugal
🏆 Top 3% Freelancer on Upwork | AI, Data, and Automation Specialist Hi I'm Marco 👋 I'm a Python developer with over 4 years of hands-on experience building AI systems, automation workflows, and data-driven applications for clients across multiple industries. 🌍 I speak: English, French, Spanish, and Portuguese. 🤖 I use: Cursor, Claude, Hermes Agent. ⭐ Highlights ↳ Developed 5+ MVPs that successfully secured funding. ↳ Completed 45+ Upwork contracts with a 100% Job Success Score. ↳ Built and currently maintain scalable data pipelines for 3+ companies. ↳ Built production-ready Retrieval-Augmented Generation (RAG) systems using modern LLM frameworks and vector databases. ↳ Trained 4+ founders and teams on implementing AI agents. ↳ Configured and deployed Hermes Agent workflows for multiple companies, following security and scalability best practices. ↳ Built custom automation systems powered by LLMs and generative AI for content creation, including avatar videos, images, and social media workflows. ↳ Built 30+ web scrapers on Apify. 🧠 Skills & Tools ↳ AI & RAG Systems: LangGraph, LangChain, OpenAI, ChromaDB, Pinecone. ↳ Hermes Agent: setup, debugging, create custom AI Workflows, Skill integration, Gbrain, MCPs, security best practices. ↳ Automation & Scraping: Playwright, BeautifulSoup, Apify (Actors), Camoufox. ↳ Data Science & ML: Pandas, NumPy, Scikit-Learn, PyCaret, TensorFlow, MMM (Marketing Mix Model), NLP, Optuna. ↳ Dashboards & Visualization: Plotly Dash and Data Studio. ↳ Web Development: FastAPI, Flask, CSS, HTML, Jinja2, Vibe-coding. 🚀 Side Projects ↳ Social Media Automation with Hermes Agent Built 3 custom AI workflows with 7+ integrated skills to automatically generate and publish avatar videos, infographics, and articles on X. ↳ AI Assistant (RAG) for Crypto & Blockchain News Developed a RAG system that continuously ingests, embeds, and retrieves content from multiple crypto and blockchain news sources. ↳ Web3 Analytics Dashboard (Hackathon Winner – €5k Prize) Won a hackathon challenge by building an interactive Plotly dashboard to visualize tokenized assets and blockchain analytics. ↳ AI-Generated Illustrated Books Pipeline Created an end-to-end content generation pipeline that automatically produces illustrated books using generative AI, from story generation to image creation and final assembly. ↳ Enterprise Data Pipelines & Reporting Built and maintained data pipelines connecting APIs, databases, and web scraping systems to analytics dashboards and automated reporting workflows. If you're looking for someone who can build AI applications, automate business processes, develop scalable data systems, or turn an idea into a working product, let's talk. 🤝
- Data Science
- Data Visualization
- Retrieval Augmented Generation
- Analytics Dashboard
- AI Agent Development
- Plotly
- Natural Language Processing
- Automation
- AI Chatbot
- LLM Prompt Engineering
- Automated Workflow
- API Integration
- AI Video Generation
- OpenAI API
- Gemini
Rio Tinto, Portugal
Your first design is ready within 24 hours. I'm not just another Graphic Designer on Upwork. I'm a Social Media Graphic Designer, Ads Designer, and brand identity specialist with 12+ years of experience, 570+ happy clients, 10,000+ creatives delivered, and 100% dedication to results. 🎯 SOCIAL MEDIA & ADS As a Social Media Graphic Designer and Ads Designer, I build scroll-stopping creatives: Banner Ad Design, Social Media Imagery, Display Ad campaigns, and full Social Media Marketing packages. Whether it's Facebook Advertising, Google Ads, Instagram, or LinkedIn, I know what works on each platform and deliver all formats within 24 hours. Over 570 clients trusted me as their Ads Designer because I think like a marketer, not a decorator. My Social Media Graphic Designer workflow covers everything from Social Media Strategy and Social Media Content Creation to Social Media Management and animated ad sets. As a Graphic Designer focused on performance, I always start with 1 clear goal: make your audience stop scrolling and take action. 🖌️ BRANDING & IDENTITY Every great brand starts with a great Graphic Designer. In 12 years I've built 300+ brand identities: Logo Design, Brand Identity Design, Brand Identity & Guidelines, Branding systems, Typography, Business Cards, Stationery, and Packaging Design. Whether you need 1 logo or a complete brand kit, first concept lands within 24 hours. As a Graphic Designer across 20+ niches, e-commerce, SaaS, coaches, and consultants, I know how to make brands work, not just look good. 📐 PRINT & LAYOUT From Brochure Design and Flyer Design to Poster and Print Design, 10,000+ print-ready files delivered across 12 years. As a Graphic Designer with a strong print background, every Layout Design, Infographic, and Data Visualization gets the same 24-hour turnaround. Vector Graphic assets, Illustration, Photo Editing, all handled in-house by the same Graphic Designer who built your brand. 📊 PITCH DECKS & WHITE PAPERS Need to raise funding or close a deal? I've designed 200+ pitch decks, investor presentations, and white papers for SaaS founders, consultants, and agencies. As an Ads Designer who understands conversion funnels, I know how to make every slide sell. Clean Layout Design, sharp Typography, and structured Infographics turn your content into something investors actually read and act on. First draft within 24 hours, always. 🎬 VIDEO & MOTION Beyond static Graphic Design, I produce motion graphics and video ads using Adobe After Effects and Adobe Premiere Pro. Animated Banner Ad Design, motion Social Media Imagery, logo animations. As a Social Media Graphic Designer and Ads Designer, I deliver video-ready creatives for paid campaigns and organic Social Media Marketing. Static and motion, all under 1 roof. 🌐 WEB & DIGITAL As a Social Media Graphic Designer and Web Design creative, I build WordPress-ready layouts and Figma prototypes across 10+ industries. User Experience Design, User Interface Design, Illustration, Vector Graphic, Photo Editing. Whether you need UX & UI wireframes or full Web Design mockups, I cover the full visual stack with 0 back-and-forth. 🤖 AI-POWERED GRAPHIC DESIGN As a forward-thinking Graphic Designer and Ads Designer, I integrate Midjourney, DALL-E 3, Ideogram, Leonardo AI, and Flux to generate unique visuals 3x faster without sacrificing quality. AI handles raw generation. I handle strategy, Branding consistency, and final polish in Adobe Photoshop and Adobe Illustrator. The result: more creative options and faster delivery than any traditional Social Media Graphic Designer can offer. 🎨 FULL TOOLSET Adobe Photoshop · Adobe Illustrator · Adobe InDesign · Adobe After Effects · Adobe Premiere Pro · Figma · Canva · WordPress ⚡ WHY 570+ CLIENTS KEEP COMING BACK → First draft in 24 hours, every single time → Unlimited revisions until 100% satisfied (on hourly contracts) → 30 days free support after delivery → 12 years as a professional Graphic Designer, Social Media Graphic Designer and Ads Designer → 570+ clients across 20+ countries → 10,000+ creatives: Social Media Design, Print Design, Banner Ad Design, Display Ad & more → 200+ pitch decks and white papers delivered → PPC Campaign Setup & Management, Facebook Ads Manager, Paid Media → Responds within 10 minutes during business hours → Zero ghosting, 0 missed deadlines 🏆 WHO I'VE HELPED E-commerce brands scaling paid ads with Banner Ad Design and Social Media Imagery. SaaS companies closing 6-figure deals with pitch decks. Coaches building trust with Branding and Print Design. Startups winning investors in under 48 hours. If you've been burned by a Graphic Designer who just follows briefs, I'm the Ads Designer who thinks like a marketer and the Social Media Graphic Designer who delivers like a pro. Don't let another week pass with creatives that don't convert. Message me now and let's fix that. 📩
- Advertising Design
- Social Media Imagery
- Banner Ad Design
- Figma
- Adobe Photoshop
- Graphic Design
- Social Media Content
- Adobe Illustrator
- Adobe After Effects
- Illustration
- Flyer Design
- Infographic
- Print Design
- Web Design
- Brochure Design
- Social Media Design
- Logo Design
- Photo Editing
- Branding
- WordPress
Lisbon, Portugal
⚡Founder of ObjectSingle | Production AI systems, agents, and automation you own 🏆 Top Rated | 100% Job Success | EU-based, GDPR by default ✅ Flagship: shipped a multi-agent AI compliance platform (VaultIQ+) and a CRO program that lifted one client +356% 🧩 Python, LangChain, RAG, OpenAI and Anthropic APIs, Next.js, Supabase OVERVIEW I'm a technical founder. I've architected production systems for 9+ years and now lead the ObjectSingle engineering team. We build custom AI you own: agents, RAG pipelines, and automation integrated into your stack and handed over. Not no-code glue that breaks under load, and not research demos that never ship. You're not booking a freelancer by the hour. You get a senior team led by someone who has actually built this. I scope and architect, my engineers deliver, and I stay close to every build. WHAT WE BUILD AI agents and assistants: multi-step, stateful, integrated with your tools (CRM, support, internal systems). RAG and document intelligence: turn large document sets into cited, searchable answers. AI automation: remove manual, repetitive back-office and ops work. Days of work to minutes. Production deployment: built into your stack, in your repo and infra, owned by you. PROOF VaultIQ+ (InsightX): a multi-agent compliance platform that turns days of manual due diligence into a cited report in minutes. Limitless Living MD: ecommerce growth and CRO that grew monthly revenue from $21K to $96K, a 356% lift, taking conversion from 0.76% to 2.07%. HOW WE WORK Senior engineers lead technical discovery and the build; I architect and review. Clear scope, fixed milestones, weekly updates. We ship in weeks, not quarters. TECH AI: Python, LangChain, RAG, OpenAI API, Anthropic Claude API, multi-agent systems. Product: Next.js, React, TypeScript, Node.js, Supabase. Commerce and CMS: Shopify, Sanity, Contentful, Strapi. LET'S TALK Have a concrete problem off-the-shelf tools can't solve, or an AI pilot that stalled before production? Send a message or book a consultation and we'll scope it together. Skills & Keywords AI Developer, AI Agents, Agentic AI, RAG, LLM Integration, AI Automation, Python, LangChain, OpenAI API, Anthropic Claude API, AI Consulting, AI Product Development, SaaS Development, Conversion Rate Optimization, Shopify, Headless CMS, Next.js, React, TypeScript, Supabase
- GraphQL
- TypeScript
- Next.js
- React
- Web Design
- Front-End Development
- Node.js
- Full-Stack Development
- SaaS Development
- API Development
- Ecommerce Website Development
- Custom Ecommerce Platform Development
- Strapi
- Contentful
- Ghost CMS
Lisbon, Portugal
I will help you scale your Business through highly converting and top quality Designs. From Branding to Websites to Ads, I will create all the assets you need with a combination of design expertise and a dynamic AI workflow to turn visitors into customers. Generated $1M+ in sales for clients with personalized Ad Creatives and Landing Pages. You will work with an Award winning Graphic Designer (previous clients include BMW, Heineken and AG1) with solid knowledge in Digital Marketing (Media Buying, Email Marketing and Conversion Rate Optimization) and more than 10 years of experience in the Advertising Industry🏆 I am big advocate of AI tools in my creative process and I regularly use a node based workflow to create masterpieces (Claude, Nano Banana, Flux, Seedream, Kling, ChatGPT, Canva AI, Eleven Labs and more) Besides being a TOP RATED PLUS Designer on Upwork (in only 6 months) I am the only freelancer in here who has been featured on Oberlo Success Stories (Owned by Shopify). My experience with ecommerce is very solid. Here's how I can help you: → Logos and Brand assets for your business (Brand Manual, Website, Merch, Print, etc). → Website that converts visitors into customers (Framer, Wordpress and Shopify). → Highly converting Ad Creatives (Static & Video) → All forms of banners to be used on the Website, Social Media, Email Marketing Campaigns, etc. → Any type of Communication Materials (flyers, outdoors, press, digital). Why is it hard to find someone like me? 🤯 Because there's one thing that sets me apart from the competition: the ability to combine and execute the creative process with a custom marketing strategy. I also offer Digital Marketing services such as: → Funnel Development and Optimization → Creation and management of Meta Ads Campaigns (Facebook & Instagram) → Email Marketing (Klaviyo) With an extensive knowledge in Branding, Product Design, Packaging Design, Merchandising Design, Advertising, Digital Marketing, eCommerce and Content Creation, I worked for some big boys like Heineken, Guinness, Desperados, Tanqueray, Opel, BMW, etc. This is what I love to do. To create. Some facts about me: → Designed my first logo at the age of 10 (with a software called AA Logo). → Took a Design Bachelor and studied multiple fields such as Product Design, Graphic Design, Interior Design, Design Management, etc. → Started my career at an Advertising giant (Young & Rubicam Lisbon). → Generated more than $200.000 with my own clothing brand in it's first year. → Interviewed by Oberlo (owned by Shopify) and got featured in the Success Stories. → Developed strong experience with Media Buying (spent more than $100.000 with Facebook Ads) and Email Marketing (Klavyio). If you're interested to grow your brand online for an affordable price don't hesitate to send me a message so we can schedule a call 🚀
- Branding
- Email Marketing
- Video Editing
- Digital Marketing
- Advertising
- Web Design
- Social Media Advertising
- Content Strategy
- Social Media Design
- Facebook Advertising
- Photo Editing
- Graphic Design
Funchal, Portugal
I'm Penetration Tester & Cybersecurity Consultant with 8 Years of Experience. I have been recognized as a Top Rated Plus freelancer on this platform🥇Take a look at my full profile to discover how I've helped clients secure their products and meet compliance goals. If you're looking to identify vulnerabilities before attackers do, strengthen your security posture, or meet compliance requirements, you're in the right place. Here's how I help businesses stay secure: 🛡️ Penetration Testing. End-to-end security testing for Web applications, APIs, Mobile apps, and Infrastructure. You'll receive a comprehensive report with not just a list of findings, but clear remediation guidance your team can actually use. 🛡️ Cloud Security & Compliance Readiness. I review and harden your cloud infrastructure to help you confidently meet industry standards including ISO 27001, SOC 2, PCI DSS, HIPAA, and more, without the guesswork. 🛡️ Microsoft 365 / Google Workspace Security. A holistic assessment and hardening of your Microsoft 365 or Google Workspace environment, covering identity, access controls, email security, and data sharing settings, so your team can collaborate confidently without exposing common misconfigurations that put your data at risk.
- Penetration Testing
- Cloud Security
- Cybersecurity Management
- Website Security
- Network Security
- Application Security
- Information Security
- Vulnerability Assessment
- Ethical Hacking
- Security Assessment & Testing
- Network Penetration Testing
- Software Testing
- Web App Penetration Testing
- Static Testing
- API Testing
- Mobile App Testing
- Beta Testing
- Alpha Testing
- Test Results & Analysis
- Security Analysis
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Top cities for AI Freelancers in Portugal
- AI Freelancers in Lisbon, PT
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