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I help CRO teams and DTC brands turn fragile Shopify themes into stable, experiment‑ready storefronts. My work lives in Liquid, metafields and vanilla JavaScript, running theme‑level A/B tests through GrowthBook and Shoplift, with no flicker, no broken variants, and no impact on Core Web Vitals. I am not a general Shopify developer. I specialize in one thing: building and shipping Shopify experiments that protect revenue while testing bold ideas. I can join strategy calls with your CRO team, walk through the hypothesis, propose the cleanest architecture, and then go into the theme and make it real. 🎯 What I do for Shopify brands & CRO agencies — Theme‑level A/B tests using GrowthBook, Shoplift and custom feature flags (no overlay tools, no DOM swaps, no flicker). — High‑conversion PDPs for complex catalogs: metafield‑driven variants, coverage × material selectors, and size & fit UX that reduces friction instead of adding more clicks. — Mobile‑first PDP UX: sticky add‑to‑cart bars, clean buy boxes, and trust elements, reviews and FAQs placed where real users actually interact. — Cart drawer optimization: free‑shipping thresholds, discount clarity, total savings lines and cross‑sell placements that do not slow the store down. — Metafield architectures and Matrixify workflows so experiments scale across hundreds of SKUs without fragile manual hacks. ✅ What you get working with me — Clean, isolated, and documented Liquid code your team can review and roll back easily. — A duplicate‑theme build process that never touches production until QA is done. — Structured QA across devices, browsers, variant states, stock states, discounts and back‑in‑stock flows before anything goes live. — Clear implementation plans up front: which templates and snippets we touch, what metafields schema we use, and how we handle rollout. — A developer who stays available during launch windows to catch race conditions and edge cases before they touch revenue. 📂 Recent projects For a 4x4 accessories brand, I consolidated 200+ separate products into a single metafield‑driven PDP with a coverage × material selector, then wired it into a Shoplift A/B test running across 218 SKUs without touching checkout behavior. For a European lingerie brand, I rebuilt the entire mobile PDP and size‑selection UX: sticky add‑to‑cart bar, a size matrix showing stock and sale states per variant, and a cleaner minicart that makes discounts and final totals easy to read instead of confusing. 🛠️ Tech stack Shopify · Shopify Plus · Liquid · JavaScript · HTML · CSS · GrowthBook · Shoplift · Matrixify · Figma · GA4 · Klaviyo · Core Web Vitals 🏪 Best fit for CRO agencies running theme‑level experiments · DTC brands on Shopify or Shopify Plus · Teams that already have hypotheses and designs and need clean, QA'd Liquid implementation · Stores with complex catalogs (metafields, multi‑variant PDPs, 100+ SKUs). Invite me to your job, share your store URL, and I will come back with a quick audit and a concrete plan for your next test or PDP sprint. Shopify CRO · A/B Testing · Theme Development · Liquid · GrowthBook · Shoplift · PDP Optimization · Cart Drawer · Metafields · Shopify Plus · Conversion Rate Optimization · Mobile UX · Core Web Vitals · DTC Ecommerce · Shopify Developer · Shopify Expert · Shopify Theme Developer · Shopify CRO Specialist · Experiment Implementation · Feature Flags · Shopify 2.0

Hey! Robin here. I help business owners integrate AI technologies into their workflows. Check out my 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗰𝗮𝘁𝗮𝗹𝗼𝗴 for budget-friendly, self-hosted AI solutions fine-tuned to your specific needs. ● 𝗔𝗯𝗼𝘂𝘁 𝗠𝗲 Hi, I'm Robin — a Mechatronic Engineer who was drawn to the “dark side” of software development early in my career. Always striving to stay up to date, I've gained real-world experience with most of today’s popular software development technologies (full list below). I take time to understand both the business goals and the technical requirements of your project before writing a single line of code. This ensures you're paying for solutions that truly work, pushing your project in the right direction with every sprint. I'm not the kind of freelancer who just completes tasks for the sake of getting paid. I've been working as a software developer since 2006 and on Upwork (formerly oDesk) since 2012. Freelance projects here put food on my table, so you can expect full dedication. I only take on one job at a time and always aim to respond quickly. I'm online during standard office hours, Monday through Saturday, and my time zone is GMT-5 (same as New York) year-round. ● 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 Ongoing (Back-end Developer) Vagrant, RESTful 2018–2020 (Java Web Development) Spring Boot, JSF, PrimeFaces, JAXB, JAX-RS, SQL Server 2008 2017–2018 (JavaScript Mobile) Node.js, Express, React Native, iOS, Xcode, Blockchain 2013–2017 (PHP Web Developer) PHP 5, MySQL, Laravel, Lumen, AWS EC2, AWS RDS, AWS CodePipeline, AWS Elastic Beanstalk, Cloud9 IDE, GitHub, Bitbucket 2012–2014 (Java Desktop and Web) J2SE, Struts, Derby DB, MySQL, JDBC, Hibernate, Jasper Reports, NetBeans, Tomcat 2009–2012 (.NET Web Developer) Visual Studio 2008–2010, ASPX, ADO.NET, Silverlight, MVC (.NET), WCF, ADO.NET Data Services, MS SQL Server, Oracle, SVN, Scrum 2007–2009 (Windows Desktop Software) Borland Delphi 6, MS SQL Server 2000, Oracle, Firebird, JEDI Version Control System, PMP/Waterfall methodologies 2006–2007 (Hardware–Software Integration) C/C++, Borland Builder 5 & 6, OLE DB, ADO components

Over 18 years of experience in customer service helping end-users, clients, and co-workers with technology related issues. I am passionate about technology, self-taught and very curious, trying to learn every day a little more. I enjoy helping others, and patience is one of my best virtues. Upwork- Nov 2018- Present I provide support for LATAM countries and Spain in Office 365 Concierge program, helping customers in topics such domain configuration, email troubleshooting, office desktops apps and all Office 365 products focusing on great customer satisfaction. I have advanced troubleshooting skills in Exchange Online, helping others Support Engineers to succeed in their roles assisting on consults. SENIOR SYSTEM ENGINEER /EXCHANGE ONLINE ADMINISTRATOR Indra Sistemas- Sena Project Nov 2015- Nov 2018 For 15 months I was the Active Directory administrator for a domain with approximately 50.000 users. I created GPOs required by the client. After 15 months I was an Exchange Online- Office 365 administrator. My responsibility was to manage an Exchange 2010 / Exchange Online Hybrid environment, solving problems related to migrations, accounts, mail flow and Azure AD synchronization problems. SERVER ADMINISTRATOR / SUPPORT ENGINEER Corporación Colegio Los Nogales Sep 2008- Sep 2009/ Jun 2010- May 2015 In the first period I was a support engineer, helping end-users to solve issues on Office desktop apps, operating system, networking and username problems. In the second period, I was promoted to a server/network administrator, solving problems with Active Directory, DNS, DHCP and Exchange 2007. TECHNICIAN SUPPORT Vision Software Jun 2007- Jun 2008 I worked in a Microsoft Partner in a client called Bodytech. supporting final users in problems with operating system, hardware and applications installed in their computers Technical Skills Microsoft 365 Administrator (Teams, Sharepoint, Onedrive, Entra ID), Exchange Online Expert, Windows Server 2019-2026 Network troubleshottings and configurations Firewall and Antivirus

As an experienced architect, I specialize in 3D modeling, rendering, and architectural design. Over the past 6 years, I have worked with clients from around the world, honing my communication skills and problem-solving abilities to deliver tailored solutions that meet each client's unique needs. I am highly proficient in a range of design software, including AutoCAD, Revit, SketchUp, Vray, D5 render, Unreal Engine, Lumion, and Enscape. I am committed to delivering exceptional results on every project. If you need any of the following services, feel free to contact me! - Architectural design for homes, offices, or commercial spaces - Interior design - 3D modeling on a small or large scale - Architectural drawing (creating plans, elevations, sections, construction plans, etc.) - Architectural visualization: professional rendering, video walkthroughs, 360° views, high-quality static renders. Thank you for considering my services. I look forward to working with you!

I am an Architect with over 10 years of experience working as a freelancer, supporting both international and local clients. Throughout my career, I have helped multiple companies improve the quality, efficiency, and accuracy of their architectural deliverables. I provide services in architectural design, interior design, shop drawings, construction documents, and bioclimatic consulting, always with a strong focus on technical precision and real-world buildability. I enjoy challenges and collaborative work, and I am comfortable contributing to projects of any scale—from detailed finish packages to large-scale building designs. I am flexible with working hours and adapt easily to different workflows and time zones. Quality and deadlines are the core principles of my work. I follow client ideas carefully while adding professional insight when appropriate, and I am committed to reviewing feedback as many times as needed to ensure results that exceed expectations. Thank you for taking the time to review my profile. I look forward to the opportunity to collaborate on your next architectural project.

I will help you and your team get their time back — by handling the admin and marketing tasks that keep piling up, so you and your team can focus on what actually makes your business grow. Here's what I take off your plate: 📬 Email & Calendar Management — inbox zero systems, scheduling, follow-ups, and appointment coordination that actually stick 📲 Social Media Scheduling & Support — content calendars, post scheduling, caption writing, and platform management (Meta, LinkedIn, Instagram) 🤖 AI-Powered Workflows — I use tools like ChatGPT, Notion AI, and automation platforms to work faster and smarter — so you get more done without paying for more hours 🎯 Marketing Admin Support — campaign coordination, basic ad monitoring (Meta Ads), copywriting support, and content repurposing 📍 Google My Business (GMB) Setup & Management — profile creation, optimization, photo updates, review management, and local SEO improvements to help your business get found on Google Maps 🌐 Website Management & Support — content updates, basic edits, and day-to-day management across multiple website platforms including WordPress, Wix, Squarespace, Shopify, and more — no need to learn the tech yourself 🖥️ Tech Support (Windows & macOS) — troubleshooting, software setup, performance optimization, and day-to-day technical issues resolved remotely — fast and without the tech headache 📊 General Virtual Assistance — data entry, CRM updates, research, Google Workspace, and day-to-day operational support Why clients keep working with me: ✔ I don't wait to be told what to do— I anticipate what's next ✔ I communicate proactively and meet every deadline ✔ I combine human judgment with AI tools to deliver more value per hour ✔ Top Rated+ on Upwork with a track record of satisfied clients Tools I work with daily: Google Workspace · Meta Business Manager · Google My Business · Canva · CapCut · Notion · ChatGPT · Trello · Slack 📩 Ready to get organized and move faster? Send me a message — I respond quickly and I'm ready to start.