Hire the Best Capistrano Developers

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.

Hi! I'm Darío Alessandro Plaza León, a dedicated software developer with a strong passion for technology and continuous learning. My commitment to honesty and a genuine desire to assist others sets me apart, both in professional and personal settings. I approach every project with enthusiasm, always striving to find the best solution. If you’re looking for someone who brings not only technical expertise but also a 𝗽𝗼𝘀𝗶𝘁𝗶𝘃𝗲 𝗮𝗻𝗱 𝗰𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝘃𝗲 𝗮𝘁𝘁𝗶𝘁𝘂𝗱𝗲, I’m ready to help bring your ideas to life. I specialize in backend development with Java (Spring Boot), and build full-stack apps using modern frameworks like React. I’m also open and capable of working across different platforms — 𝘄𝗲𝗯, 𝗱𝗲𝘀𝗸𝘁𝗼𝗽 𝗮𝗻𝗱 𝗺𝗼𝗯𝗶𝗹𝗲 — using modern tools and rapid learning when needed. I’ve worked across various industries: booking platforms, internal tools, SaaS apps and automation systems, always focused on building clean, scalable and high-impact software. 𝗪𝗛𝗔𝗧 𝗠𝗔𝗞𝗘𝗦 𝗠𝗘 𝗗𝗜𝗙𝗙𝗘𝗥𝗘𝗡𝗧 - Full-time availability for fast development and real progress - Open to any platform or framework – I learn fast and deliver fast - Strong backend fundamentals with secure and scalable design - Honest, proactive, and focused on client success I’m ready to bring your project to life.

Is your PrestaShop store broken, slow, or missing a key feature? I'll fix it — fast, clean, and with clear communication throughout. I'm a PrestaShop specialist and Full Stack Developer with 5+ years of hands-on experience building custom modules, migrating stores, configuring VPS servers, and solving complex bugs in production environments. I currently work as a Software Engineer at Mercado Libre — Latin America's largest tech company — which means I build and maintain systems at scale every day. On Upwork: 100% Job Success Score, Rising Talent badge, and a track record of delivering on time and communicating proactively. ────────────────────────────────── PRESTASHOP — What I can do for you: ────────────────────────────────── ✔ Custom module development (PS 1.6 / 1.7 / 8.x) ✔ Theme customization & complete store redesigns ✔ VPS setup, NGINX/Apache configuration & SSL ✔ Store migrations (version upgrades or server changes) ✔ Bug fixes: cache conflicts, session errors, white screens, hook issues ✔ Performance optimization (Redis, caching layers, DB queries) ✔ Payment gateway & third-party API integrations ────────────────────────────────── FULL STACK — Beyond PrestaShop: ────────────────────────────────── ✔ React / Next.js frontends (Redux Toolkit, Zustand) ✔ PHP backends with Symfony ✔ Node.js / Express APIs ✔ .NET 8 + Entity Framework + Microservices ✔ MySQL, PostgreSQL, Redis, ElasticSearch ✔ CI/CD pipelines with GitHub Actions & Docker ────────────────────────────────── WHY CLIENTS CHOOSE ME: ────────────────────────────────── → I respond within 4 hours and keep you updated at every stage → I write clean, documented code — not quick patches that break later → I've handled both small urgent fixes and long-term development projects → English (conversational) + Spanish (native) — no communication barriers Whether you need a quick bug fix or a full store rebuild, I'll make sure the job is done right. Let's talk about your project.

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 work hand in hand with you to simplify, improve and enhance your projects and requirements I am a very experienced Full Stack Developer for Web and Mobile applications compatible with all devices such as touch screens, tablets, and mobile. I have worked in different projects with very well known brands such as LG, Reebook, Cisco, and more. Front End - Wordpress with Elementor Pro, ACFs, CPTs, API, Woocommerce hooks & filters, Plugins,Gravity Forms, Virus Removals, Shortcodes and Custom Coding. - Webflow with CMS Setup and API Backend - Collections, Fields, Templates, Lists, Items, etc - Vanilla HTML/CSS/JS - HTML5 with Bootstrap Library, Jquery and CSS - React/NextJS with Tailwind/DaisyUI CSS or Angular Framework Back End - MERN Stack (MongoDB, Express, React, NodeJS) - MEAN Stack (MongoDB, Express, Angular, NodeJS) - Vanilla PHP and Laravel Framework with REST API Cloud Solutions and Maintenance - Database Design and data CRUD (Create, Read, Update, Delete) - MySQL - SQL Server - Firebase - IndexedDB - MongoDB - Full Linux/Ubuntu Server Setup and Management (Digital Ocean and Amazon AWS with EC2, RDS and S3 Services) - Docker Mobile Experience in Front End and Back End - Flutter with Bloc state management - Angular - Unity - Push Notifications - App Store & Play Store - API communication with the back end. Game Experience in - Unity (Body Tracking, Face Tracking Virtual Reality, Augmented Reality, Advergames, 3D Environments, 2D and 3D games) - Phaser (2D games and Advergames) - Construct 2 and 3 (2D games and Advergames with backend through Ajax) - HTML/Javascript games Chatbots Experience - I can build chatbots for Whatsapp, Facebook, Instagram, and for your Native App. - Meta Business Cloud Solutions - Twilio - Add buttons, stickers, images, menus and much more to your whatsapp, facebook and other social media conversations. - Full Front, Back and Cloud solution. - Slack API for Messaging, Notifications and Responses Filter Experience - Spark AR for Facebook and Instagram - SnapChat AR Filters Ecommerce and Payment Gateway - Stripe Payments with Connected Accounts - Niubiz, Paypal, Culqi and other APIs. - Woocommerce - Vanilla code with Payment Gateway features Hardware - Touch Screens - Digital Totems - Arduino breadboards and programming - Kinect and sensor tracking AI - Work with Open AI, Anthropic Claude, Google Gemini and Grok using APIs. - Web Design using Base44, Lovable, Google Stitch and Figma Make. - Openclaw Automation 4.0 GPA Honor student at University of Central Florida and McFatter Technical Institute with studies in Computer Science and Networking

Full Stack Developer with 4+ years building production-grade SaaS platforms, specializing in React, Node.js, Next.js, and NestJS. In the last project I've worked like Tech Lead at Redlizard Studioz, owning the end-to-end architecture of a multi-tenant document management SaaS built from scratch for heavy transport companies designed with per-company subdomain isolation via Cloudflare, ensuring complete data segregation between tenants. I work across the full stack, from PostgreSQL schemas and NestJS microservices to React/Next.js frontends, and I'm comfortable owning infrastructure: deployments on Linux, AWS (Amplify, Elastic Beanstalk), CI/CD pipelines, and third-party integrations. Some things I've shipped: * Architected a multi-tenant SaaS with strict tenant isolation: per-company subdomain routing and data segregation at the infrastructure level, so no tenant can access another's data. * Designed a dynamic billing engine with Stripe Invoices: tier-based pricing algorithm for variable driver counts, deferred charge scheduling, and invoice snapshots in PostgreSQL. * Built a real-time persistent chat (Firestore) with conversation continuity across workflow stages (bid → contract → active work) on a complex multi-role platform. * Engineered a multi-stage email/SMS notification pipeline with scheduler + queue + retry logic (Twilio, Postmark, Redis), handling identity verification and bank authentication flows across multiple countries. * Reduced a critical query from 28s to 3.5s (87% improvement) by redesigning table structure and eliminating N+1 ORM calls. * Replicated a full AWS production environment for staging from scratch: Amplify, Elastic Beanstalk, RDS, SSL, DNS routing. Core stack: React · Next.js · Node.js · NestJS · TypeScript · PostgreSQL · TypeORM / Prisma · GraphQL · Redis · Docker · AWS(S3, Cognito, EB, Amplify RDS, SSL) · Stripe · Firestore · Twilio · Postmark · Keycloak · Cloudflare · Vercel · Railway · CI/CD