I am passionate about software development...it’s not just my career, it’s my hobby. I have more than 18 years of experience. I'm based in Costa Rica, Central America; one of the most educated countries in the whole of Latin America. I'm constantly striving to learn new things and improve. I DO follow industry news, regularly tinker with new technologies, and read books and blogs to keep my skills current. - I work well alone or within a team environment and enjoy working with my colleagues. - I always use GitHub to keep track of my code and push commits daily - I am fluent in English and Spanish and I'm learning German as a third language, I always write documentation for the code I write and comments. Please, feel free to contact me and let's discuss further details of your projects.

I'm a Product Owner with UI/UX and development skills. I'm doing a PhD in Business Administration at the University of Electronic Science and Technology of China (UESTC), researching how Latin American enterprises adopt AI and LLM technology. So I don't just use AI tools, I study how they reshape businesses. And living in China means I have firsthand access to Chinese AI models, tools, and product patterns that most Western developers haven't seen yet. I bring that edge to every prototype I build. My AI-native toolkit: I design mostly in Figma with Figma Make (Figma's AI agent), and I build with TRAE ByteDance's AI coding tool. I'm equally comfortable with Claude Code, Cursor, Lovable, React, and Bolt when a project calls for them. This stack lets one person move at the speed of a small team. What I do: - AI/SaaS product prototypes built with AI coding tools - MVP UX/UI and product flows that are ready to develop - Figma designs and working prototypes for founder-led teams - Product redesigns for existing platforms - Design systems and scalable product UI What makes me different from other AI-native design engineers: 11+ years building software products and a background in Business Development, helps in taking design decisions based on business goals. I work best with founders who move fast, small teams and early-stage startups that need someone who can understand the product, design the UX, build the prototype, and keep moving. If you need a practical product partner who takes you from idea to working prototype, and understands international landscape, reach out.

Senior Full-Stack Engineer with 11+ years of experience building production-grade web and mobile applications. My core stack covers TypeScript, React, React Native (Expo), Next.js, Vue.js, Node.js, .NET/C#, PostgreSQL, and AWS. I've delivered across a wide range of projects: a multi-provider auth system on AWS Cognito with Apple, Google, and Facebook identity linking; a React Native fintech app with biometric auth and real-time data sync; complex SOAP/REST API integrations on .NET backends with EF Core; and a Web3 platform with dual wallet flows using wagmi v2 and OnchainKit. Beyond writing code, I take ownership of architecture decisions, API design, and CI/CD setup — contributing at every layer of the stack. I work best with async teams that value technical clarity and independent execution. If you need someone who can take a feature from spec to production without hand-holding, let's talk.

Most products struggling with growth have a systems problem. That happens when the business, market, and user experience layers operate disconnected from each other. I build systems that fix that by aligning: 🎯 How you acquire users 🎯 What they experience inside the product 🎯 How that value turns into revenue and retention So growth stops being random and starts becoming engineered and repeatable. 𝐒𝐨𝐦𝐞 𝐏𝐚𝐬𝐭 𝐖𝐢𝐧𝐬: 🎯 Defined commercial viability across 25+ early-stage startups through GTM execution 🎯 Increased course completion by 60% with behavioral loops to move users through the value ladder 🎯 Reduced churn by 45% by restructuring retention systems to improve subscription revenue 🎯 Made $6k in sales from 3 tests before bulding my product across 6 countries with $150 in ad spend 𝐖𝐡𝐚𝐭 𝐈 𝐀𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐃𝐨: I’ve worked across the full product lifecycle: from discovering demand, to scaling engagement, to fixing growth leakage, to strengthening business systems. That means: ⚙️ Aligning market positioning, product experience, and business model to reinforce each other ⚙️ Coordinating teams and stakeholders towards one concrete product outcome ⚙️ Diagnosing where growth is breaking down ⚙️ Designing revenue and retention systems ⚙️ Improving positioning and acquisition ⚙️ Building engagement loops and behavioral systems ⚙️ Leverage agentic AI to enhance workflows 𝐓𝐨𝐨𝐥𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: 🛠 Tools I Use: Figma • Miro • Notion • ClickUp • Replit • Lovable • Claude Code • WordPress • Airtable • Make 📚 Frameworks I Apply: Octalysis Framework • Gamification Design • Hooked Model • Design Thinking • Hero’s Journey • Inbound Marketing 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞: ✔️ I diagnose structural problems, not just surface symptoms ✔️ I connect market positioning, product experience, and business model into one system ✔️ I combine systems thinking with hands-on execution ✔️ Gamification and behavioral design specialist with documented results ✔️ Battle-tested across 25+ real products under real constraints 𝐋𝐞𝐭’𝐬 𝐖𝐨𝐫𝐤 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫: If your product isn't converting, retaining, or growing the way it should, the problem is almost always structural. I identify where the system is breaking and redesign it so growth becomes predictable. Let's talk.

SaaS start ups are losing money when... Customers paid but access didn’t update, or the subscription were supposed to be renewed but the system didn’t react... EVEN when a cancellation happened but the user kept access... Let's be honest... your company is losing money and you are getting a headache. Let’s turn that stress into success! I help SaaS teams make sure that every payment process reliably triggers what should happen next: subscriptions, access, users, and billing state without manual fixes or late-night debugging. So you can stop losing money and hair. What this fixes for you: • Late night debugging • Payment system stay in sync • You can focus on what matters: Scaling Typical situation I’m brought into: Stripe is “working,” but: • Webhooks fail silently • Subscription state desyncs from your app • Edge cases pile up as revenue grows The team doesn’t trust the billing flow anymore What changes after: Payment → subscription → access becomes a single, reliable flow Your team stops patching issues manually Revenue operations become predictable instead of fragile How I usually help: • Stabilize Stripe & System Payments • Fix broken post-payment logic • Make access and billing state deterministic If payment reliability matters to your SaaS, we should talk, just send me: The one billing issue you can’t afford to ignore.

TECHNICAL PROJECT MANAGER | 20 YEARS IN SOFTWARE | EX-DEVELOPER, NOW AGILE DELIVERY LEADER I manage technical projects and lead Agile delivery for engineering teams — informed by 10+ years as a hands-on developer and solution architect before moving into project leadership. That technical background lets me evaluate scope realistically, spot risk before it becomes a blocker, and earn engineering teams' trust from day one. RECENT RESULTS (Independent Consultant, 2025–Present) Managing 4 concurrent client engagements — e-commerce, PropTech, fintech, and web development — across 9 countries and 6 time zones, delivered almost entirely asynchronously. - Took a 300-item product backlog with no prior triage process down to ~75 open items in 4 months for a 10-person engineering team. - Implemented Jira from scratch for a greenfield web app (workflows, backlog, structure), then contributed hands-on: social-login authentication and a full Cypress test suite. - Built an SOP and working-agreements library for a 15-person cross-functional team running 3 separate brands. TRACK RECORD - Cut PI Planning from up to 10 hours to 2.5–3 hours (~70% reduction, ~65 person-hours recovered per cycle) by replacing in-session discovery with structured pre-work — across ~70 sprints and 12 quarterly cycles at Intel. - Reduced production defects 25% at Soom Inc. by introducing Definition of Done/Ready, peer review, and automated testing — the team's first formal quality gates. - Replaced a 2-month manual client onboarding process with guided self-service completed in as little as 30 minutes. - Scaled delivery process at Kleeen Software as the engineering org grew 4x to 20 people, splitting into parallel feature teams using Scrum@Scale. WHY THE TECHNICAL BACKGROUND MATTERS Before moving into project and delivery leadership, I spent 10+ years as a developer, solution architect, and technical lead. That means I can read a technical risk correctly, question an estimate that doesn't add up, and remove blockers without waiting on translation between business and engineering. CERTIFICATIONS Registered Scrum Master (RSM) - Scrum Inc. Scrum@Scale Practitioner - Scrum Inc. Certified Scrum Product Owner - Scrum Alliance Registered Value Stream Management Practitioner - Scrum Inc. Certified Associate in Project Management (CAPM) - PMI MBA - Universidad Fidélitas TOOLS Jira, Confluence, ClickUp, Zoho, Notion, Git/GitHub, Cypress 100% BILINGUAL: English (Professional) | Spanish (Native) Available for ongoing Technical Project Management, Agile delivery leadership, and Scrum Master engagements — full-time, part-time, or fractional. Message me to schedule a consultation.

𝗪𝗲𝗹𝗰𝗼𝗺𝗲! You wouldn't be here if you were not passionate about your project, and you deserve a web presence that matches that dedication. But turning an idea into a functional, user-friendly web application can seem complex. You might be wondering: Is this feasible? What's the real effort? How long will it take? Can my vision truly become a reality? 𝗪𝗵𝗮𝘁 𝗖𝗮𝗻 𝗜 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵: - Use modern and free web frameworks to plan, test, and implement web-based applications. - Expertise with easy and low-cost Microsoft technologies for reliable and familiar implementations. - Act as a technical advisor, providing guidance on software development challenges. - Perform code reviews to meet the best development practices and techniques. - Fix issues and bugs in existing software and add new features based on business requirements. - Actively participate in the project lifecycle, including requirements gathering, design, coding, and testing. 𝗕𝗼𝗼𝗸 𝗮 𝗳𝗿𝗲𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹: In my childhood, I used any money I could get by browsing and playing online at the now-extinct Internet cafés. Now, I'm the person who loses track of time creating stylish and interactive web pages with the goal of making people's lives easier. Let's connect and build that great application you have in mind!

I am a Software Engineer with 15 years of experience in application development and infrastructure. Over the years, I have worked across a wide range of technologies, designing and implementing high-performance solutions in both cloud and on-premise environments. My expertise lies in AWS, where I have developed, deployed, and optimized cloud-based applications. I am comfortable navigating between development and DevOps, ensuring seamless integration between software and infrastructure. In addition, I have solid experience with Go and Java, leveraging them for cloud-native applications and high-efficiency systems.

I am a very professional developer with more than 8 years of experience. I have built many websites, applications, automation scripts, and bots. I am always concerned about delivering the best product and bringing value to the customer. I ensure an immaculate, maintainable, and scalable software, always based on the most recent technologies and best practices of the industry. I am very friendly and I will be glad to work with you, handling new challenges.

Full-Stack Software Developer, Microsoft Certified Specialist, full time freelancer, costarican, english-fluent. The main niche in the last years is related to the Parking, Access Control, Logistics and E-Commerce sectors. Have spent the last years developing these kind of solutions, from scratch to one of the most important parking solutions company on the central-american region. It doesn't mean I can get hired to do an application from a different business niche, but this is definitely my area of expertise! Delivers Web apps, using Microsoft .NET (C#, VB, Core, MVC, Web API, etc), JS Frameworks (JQuery, Angular, ReactNative, TypeScript) or PHP (Laravel, Yii, from scratch). Is a Microsoft Certified Professional and uses the latest technologies. Builds Desktop Apps using .NET Winforms as well. Builds mobile apps using Ionic Framework or React Native, has published several apps on Play Store and App Store, is familiar with all the publishing process on stores. Kind of stuff that I do often: Development from scratch of Parking Solutions, development of external integrations for Came-Parkare software, Access-Control, Credit Card processing solutions for automatic cashier and standalone machines (including EMV and PCI compliance, ECR protocol) from scratch or integrated to third party interfaces. I have experience as well into connecting Electronic Invoicing (Facturación Electrónica) Systems in Latin America. Can do these kind of integrations as well. Other business niches of experience: Medical, Consulting, Funeral Home, Education, Tourism Agencies, Freight Forwarding.