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Hello! I’m Marina, a professional architect with over 10 years of experience specializing in AutoCAD, 3D modeling, and rendering software. I offer expert services in creating high-quality 2D and 3D architectural drawings tailored to your needs. My focus is on providing detailed project development, comprehensive work plans, and precise technical documentation. Feel free to explore my portfolio to see examples of my work. I look forward to the opportunity to collaborate with you and help turn your dream project into reality. Let’s work together to create something amazing!

Senior Data Scientist | Python/R, ML, ETL, Automation & Generative AI I help clients turn messy data, documents, and business workflows into reliable analyses, machine learning models, automated reports, and maintainable data systems. I am a senior data scientist with strong experience across Python, R, SQL, ETL, statistical analysis, applied machine learning, web/data extraction, reporting automation, and reproducible workflows. My work is strongest when clients need both technical implementation and analytical judgment: clean data pipelines, robust analysis, validated outputs, and results that can be trusted in real decisions. I also bring formal IBM and Google training in Generative AI Engineering, RAG, agentic AI, AI development, LangChain/LangGraph-style workflows, tool/API integration, prompting, and responsible AI use. I use these skills pragmatically: not as a replacement for good data work, but as an additional layer when AI can improve extraction, review, search, automation, or decision support. Relevant proof: • 38 Upwork jobs and 2,300+ hours delivered • Long-running automation, scraping, R/Shiny, ETL, reporting, and data workflow projects • IBM Generative AI Engineering Professional Certificate • IBM RAG and Agentic AI Professional Certificate • IBM AI Developer Professional Certificate • Google AI Professional Certificate • Strong Python, R, SQL, AWS, Docker, machine learning, and data engineering background • Public portfolio examples in PDF/OCR extraction, DOCX standardization, review packets, validation workflows, and structured exports • Consistent focus on QA, reproducibility, documentation, and maintainable handover What I can help with: • Data cleaning, ETL, and workflow automation • Exploratory data analysis and statistical reporting • Machine learning and predictive modeling • R/Python analysis pipelines • Survey, research, and business analytics workflows • Automated reports in Excel, PDF, HTML, Quarto, R Markdown, or dashboards • Web scraping and structured data extraction • PDF/OCR and document-to-table workflows • AI-assisted document processing • RAG and LLM-assisted workflow automation • Agentic AI prototypes and multi-step AI workflows • Geospatial and research data pipelines, when relevant For data science projects, I focus on more than producing a model or chart. I care about data quality, assumptions, validation, reproducibility, documentation, and whether the final output is useful for decision-making. For automation and AI-assisted workflows, I do not treat AI as a black box. I design workflows with structured outputs, validation checks, confidence flags, rejected-row handling, source evidence, review packets, logs, and maintainable handover. Clients usually hire me when they need a reliable data scientist who can handle messy real-world inputs, build clean analytical workflows, automate repetitive processes, and deliver outputs that are practical, documented, and ready to use.

I am a web scraping professional specializing in crafting efficient and reliable web scraping solutions using advanced Python scripting and automation techniques (websites scraping, crawling & indexing) With 7 years of experience on Upwork, 450 jobs and almost 4000 hours, I have worked on numerous projects in automation, web scraping, crawling and data exportation in several formats for around 250 clients. To handle complex web scraping tasks, I develop hybrid solutions using Scrapy and Selenium which allows me to scrape dynamic or JavaScript-heavy websites efficiently, with Selenium for rendering and Scrapy for data extraction, depending on the volume of data to optimize speed. For static sites, I rely solely on Scrapy for faster scraping, while in cases requiring full browser interaction, I use only Selenium. I am able to deal with hidden APIs, rotating residential proxies and captchas (using a service such as 2captcha and integrating their API in my code) Throughout my career, I have successfully scraped around 1000 sites spanning various categories such as e-commerce websites, job boards, corporate websites, government websites, community forums, etc My services stack is: - Scraping sites protected or not - Scraping images and structuring them in folder and sub-folders if needed - Doing some automation to automated boring tasks I use the following technologies: - Languages: Python - Visual Basic .NET - C# - Integrated Development Environment (IDE): Visual Studio Code - Pycharm - Visual Studio - Scraping Frameworks: Scrapy - Connection: requests - urllib - urllib3 - webrequest - httpwebrequest - webclient - httpclient - webbrowser - webkitbrowser - geckobrowser - Automation tools (headless browsers): Selenium - SeleniumWire - SeleniumBase - Undetected_chromedriver - playwright - Extractors: Beautiful soup (bs4), lxml - Extracting techniques: xpath - css selectors - string processing - json - regular expressions - Input / Output formats: CSV - Excel - MySQL - PostgreSQL - JSON - XML - Data manipulation, File output, Tables: Pandas The kinds of projects I can create are: Pure solution for static sites: - Requests + Beautiful Soup (bs4) - Requests + Lxml - Scrapy (get requests / post request) Pure solution for dynamic sites: - Selenium / SeleniumWire / SeleniumBase / Undetected ChromeDriver (sometimes used with Beautiful Soup (bs4) or Lxml in case of large tables where pandas is not enough) hybrid solutions for half dynamic sites: - Selenium-Scrapy: dynamic for crawling, static for scraping - Scrapy-Selenium: static for crawling, static for scraping It sounds great but why should you choose me over another freelancer? because according to my clients, I do have the following skills: I am a talented and skilled freelancer dedicated to crawling & scraping: smart, fast and efficient, reliable and professional, detail oriented with problem-solving skills/mindset and a positive attitude. Proactive, straight to the point, honest and trustworthy, I am very easy to work with, friendly, cooperative and a good team player that will give you high quality deliverables (very clean data) Hard worker and willing to go the extra mile I need a perfect understanding of the task to perform (I ask as many questions as necessary if some specifications are unclear) Responsive and transparent, good communicator and passionate about what I do, I am always eager to learn new techniques and technologies: stubborn and never giving up, I always give my clients a sample before the big extraction when necessary to be absolutely sure it is the way you want it. Too many qualities for the same freelancer you will say? I would say exactly the same but I have no choice but recognize those qualities because they all come from my clients feedback: you can verify it in my profile but be aware you will have to paginate through 42 pages :-( :-) Finally I will say this: happy client, happy freelancer and I want to be happy so I have to make you happy first, I have no choice! Here are a few feedback: "We recently had the pleasure of working with Eric on a project, and we couldn't be happier with the results. Eric's attention to detail, problem-solving skills, and positive attitude set him apart. If you're looking for a dedicated and talented freelancer, Eric is your go-to person. Looking forward to more successful collaborations” "Eric is an amazing Upworker, very easy to communicate with, super fast and efficient, a top notch, he comes highly recommended for any data scraping job."

✅ Your product idea deserves more than a freelancer. I lead an AI-first full-stack team of developers and designers who turn business ideas into production-ready SaaS platforms and B2B applications — on time, on budget, every time. We use AI-powered development tools to accelerate delivery and maintain code quality at every stage — so you get faster turnaround without cutting corners. 🏆 Top Rated Plus. 192 completed projects. Clients include HIPAA-compliant healthcare platforms, B2B e-commerce systems, enterprise web applications, and custom SaaS tools built for thousands of concurrent users. Hear from our Clients: ⭐⭐⭐⭐⭐"Working with this team has been an outstanding experience from start to finish." — verified Upwork client, 2026 ⭐⭐⭐⭐⭐"Outstanding Full-Service Project Delivery. I am extremely satisfied with the work — they exceeded all expectations and delivered everything." — verified Upwork client, 2025 In total, 141 reviews and the average 4.9★ since 2013 when I statrted here on Upwork Beyond Upwork, our team holds a 4.9★ on Clutch and 5.0★ on Google --- 🌐WHO WE WORK WITH We're the right fit if you are: — A SaaS founder moving from idea or prototype to a production-ready product — A B2B company that needs a custom platform, internal tool, or client portal — An e-commerce brand outgrowing your current setup (Shopify Plus, headless, custom) — A startup or scaleup that needs a reliable technical partner, not just a developer — A company that needs HIPAA-ready, GDPR-compliant, or NDA-protected development (MSA available on request) --- WHAT WE DELIVER ✔️ Full-cycle AI-First product development: architecture, UI/UX, backend, infrastructure — handled by our in-house team, not a chain of subcontractors. Built to handle growth from day one. ✔️SaaS Development Full-cycle product development: architecture, UI/UX, backend, infrastructure. Built to handle growth from day one — no expensive rewrites later. Stack: React, Next.js, Node.js, NestJS, PostgreSQL, AWS. ✔️AI Integration We integrate OpenAI, Google Vertex AI, and custom ML pipelines into your product — chatbots, smart search, recommendation engines, process automation. AI as a real business feature, not a demo. ✔️B2B Web Platforms Marketplaces, client portals, CRMs, LMS, internal tools — systems that connect your users, data, and business processes in one place. ✔️E-Commerce (Shopify / WooCommerce / Headless) Custom storefronts, Shopify Apps, WooCommerce platforms, headless commerce with Hydrogen or Strapi. Focused on conversion, performance, and ease of management. --- 🛠️HOW WE WORK Every project follows a structured process: 1. Requirements gathering and business analysis 2. Proposal with timeline and budget estimate 3. Design (Figma) + Development with QA at each phase 4. Launch + post-launch support 5. Next phases — we build for the long term You get clear communication, weekly updates, and a team that treats your product like it's their own. --- 👥TEAM Senior full-stack developers · UI/UX designers · DevOps/AWS engineers Tools: Figma · React · Next.js · Node.js · NestJS · PostgreSQL · AWS · Shopify · WordPress · OpenAI API --- Ready to discuss your project? Message me — scoping call and intro estimate are free. Updated: July 30, 2026

Architect & Interior Designer based in Barcelona, turning ideas into functional, beautiful spaces. Skilled in SketchUp, AutoCAD, V-Ray, Enscape, and Rhino, I deliver high-quality 2D drawings, 3D models, and photorealistic renders. Always with precision, creativity, and on-time delivery. I’m María Fernanda, an Architect with a Bachelor’s degree and currently pursuing a Master’s in Barcelona. I transform ideas into functional, beautiful, and innovative spaces whether for interiors, exteriors, or conceptual projects. My expertise covers the full creative process: from supervising construction projects to producing high-quality 2D drawings, 3D models, and photorealistic renders. Tools & Skills: SketchUp, AutoCAD, V-Ray, Enscape, Rhino, Adobe Suite, Microsoft Office. What I can do for you: - Interior design concepts and layout optimization - High-quality 3D modeling and rendering for residential & commercial spaces - Detailed architectural plans and construction drawings - Creative graphic design for architectural presentations I’m passionate about design that not only looks great but also works perfectly for its purpose. My clients appreciate my attention to detail, clear communication, and ability to deliver on time. Let’s bring your vision to life, send me a message and let’s start creating something amazing.

Business Development through Marketing: combining business growth analysis, market-competitors-customers research to help the company make the right offer for the right audience. I identify business growth opportunities, build and implement marketing strategies based on market demand, business capabilities, customer behaviour and competitive environment. That is why I work deeply with: - finance & marketing audits; - custdev research; - market research; - competitor analysis; - brand positioning; - Paid, Earned, Shared and Organic customer acquisition channels. 6 years of experience in Digital Marketing & E-commerce across USA and markets of Europe. Originally from Ukraine, based in Spain. Typical project workflow: 1. Business Growth Audit 2. Research 3. Strategies Development 4. Launch Preparation 5. Launch Execution 6. Strategies Adjustment 7. Follow-up Researches. I help business owners make better marketing investments to grow.