Fabian M.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Senior Software Engineer with 25 years of experience driving digital transformation for global businesses. Expert in backend, frontend, and mobile development, with a track record of leading high-impact projects that have improved scalability, user engagement, and revenue. Proven leader in remote-first environments, delivering complex solutions across industries such as healthcare, logistics, and e-commerce. Fluent in English and Spanish, with expertise in Agile methodologies and emerging technologies. CORE COMPETENCIES - Cultivated a ‘Remote-first’ culture, ensuring high-quality deliveries and operational excellence based on excellent team communication and using collaborative tools and Agile methodologies. - Backend Architecture and Development: JavaScript, Node.js, PHP, MySQL, SQL Server, PostgreSQL and SQLite. - Frontend Development: HTML5, CSS3, Vue.js, React, Bootstrap and Tailwind. - Mobile Development: iOS/Android platforms, Titanium SDK, React Native, Objective-C, Java, Kotlin, Swift, Swift UI. - E-commerce Development: Shopify (Liquid, Remix, Polaris), WooCommerce (PHP). - Cloud Architecture: AWS, GCP, VPS, Fly.io, Docker. -Successfully managed and delivered large-scale, complex projects, including ERP platforms migrations, vehicle fleet logistics and management systems, and healthcare industry systems positively impacting millions of users. - Payment Systems: PayPal, Stripe, Sage Pay, Apple Pay, Google Pay, WooCommerce payment gateways. - Protocols & Standards: HL7, FHIR, HIPAA, Rest APIs, GraphQL PROFESSIONAL EXPERIENCE Senior Software Architect & Developer 01/2013 – Present Inzori | Uruguay & Spain (Remote) - Co-founded a remote-first company specializing in mobile app development and web systems architecture, achieving 4M+ app downloads and a 4.8-star rating across platforms. - Delivered ERP systems, payment gateways, and custom e-commerce plugins for clients in logistics, healthcare, and retail. - Increased app revenue by 25% in one year and boosted online store revenue by 70% through innovative payment gateway integrations. - Developed in-house apps and tools that improved user engagement, client satisfaction, and operational efficiency. - Enhanced user acquisition and retention by creating a unique virtual currency feature in a Shopify store, encouraging customers to earn and spend store-exclusive currency. ………………………………….…………………………………….………………………………….…… Senior Software Architect & Developer 01/2020 - Present Fluid Truck | Denver, CO, USA (Remote) - Led mobile application development for iOS and Android, collaborating with cross-functional teams and reporting directly to the CTO. - Delivered weekly app updates, achieving a 4.9-star rating on Apple and Google Play Stores. - Designed and implemented new features that increased mobile app revenue by 25%. - Collaborated with product and QA teams to optimize UX/UI based on user feedback, driving significant user engagement improvements. ………………………………….…………………………………….………………………………….…… Senior Software Architect & Developer 01/2016 – 01/2020 Anexinet Corp. | Blue Bell, PA, USA (Remote) - Designed and developed backend and mobile solutions for clients in finance and healthcare, including De Lage Landen (DLL) and Canopy Health. - Spearheaded a COVID-era virtual doctor’s office feature for Canopy Health, integrating with HL7 protocols and Okta for secure authentication. - Delivered four mobile apps for DLL, tailored to industry-specific needs, enhancing operational efficiency across 25+ countries. - Led a system migration from Glassfish/SOAP to Node.js/JSON, improving scalability and reducing maintenance costs. ………………………………….…………………………………….………………………………….…… Senior Software Architect & Developer 07/2017 – 08/2018 Ember technologies Ltd. | Glenrothes, Scotland (Remote) - Directed iOS/Android mobile app development for high-profile clients, including HSBC, Grant Thornton, British Cycling, and the NHS. - Delivered robust, scalable mobile solutions tailored to client-specific requirements, ensuring seamless integration and functionality. ………………………………….…………………………………….………………………………….…… Senior Software Architect & Developer 01/2015 – 12/2015 Payment Data Systems (Usio) | San Antonio, TX, USA (Remote) - Designed and developed a mobile payment application integrated with Stripe, Apple Pay, and Google Pay to allow users to create virtual credit cards and categorize them to truck different budgets. - Streamlined payment processing with virtual POS systems and customizable payment platforms. ………………………………….………………………… Senior Software Architect & Developer 06/2006 –10/2012 Accendo-IT | Montevideo, Uruguay - Delivered a modular web-based software suite that streamlined supply chain operations. - Designed ERP solutions optimizing logistics for 1-800 Radiator, supporting over 250 franchises - Managed end-to-end project delivery, overseeing client communication, development, deployment, and ongoing support to ensure timely completion and high client satisfaction.