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I'm Fabian Martinez, a Senior Software Engineer with extensive experience across fintech, healthcare, logistics, e-commerce, and SaaS environments. I lead agile teams delivering scalable, secure software solutions aligned with business goals. I specialize in backend and mobile development with a focus on payment systems architecture and healthcare protocols. I also build AI-powered automation and agentic workflows using n8n, integrating LLMs and APIs to streamline processes and improve operational efficiency. I'm fluent in English and Spanish and thrive in global, cross-functional teams and in mentoring engineers.…I'm Fabian Martinez, a Senior Software Engineer with extensive experience across fintech, healthcare, logistics, e-commerce, and SaaS environments. I lead agile teams delivering scalable, secure software solutions aligned with business goals. I specialize in backend and mobile development with a focus on payment systems architecture and healthcare protocols. I also build AI-powered automation and agentic workflows using n8n, integrating LLMs and APIs to streamline processes and improve operational efficiency. I'm fluent in English and Spanish and thrive in global, cross-functional teams and in mentoring engineers.

Fabian Martinez

Back-End Developer, Full Stack Developer, App Developer, +7

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I'm Fabian Martinez, a Senior Software Engineer with extensive experience across fintech, healthcare, logistics, e-commerce, and SaaS environments. I lead agile teams delivering scalable, secure software solutions aligned with business goals. I specialize in backend and mobile development with a focus on payment systems architecture and healthcare protocols. I also build AI-powered automation and agentic workflows using n8n, integrating LLMs and APIs to streamline processes and improve operational efficiency. I'm fluent in English and Spanish and thrive in global, cross-functional teams and in mentoring engineers.…I'm Fabian Martinez, a Senior Software Engineer with extensive experience across fintech, healthcare, logistics, e-commerce, and SaaS environments. I lead agile teams delivering scalable, secure software solutions aligned with business goals. I specialize in backend and mobile development with a focus on payment systems architecture and healthcare protocols. I also build AI-powered automation and agentic workflows using n8n, integrating LLMs and APIs to streamline processes and improve operational efficiency. I'm fluent in English and Spanish and thrive in global, cross-functional teams and in mentoring engineers.

Available to hire

I’m Fabian Martinez, a Senior Software Engineer with extensive experience across fintech, healthcare, logistics, e-commerce, and SaaS environments. I lead agile teams delivering scalable, secure software solutions aligned with business goals.

I specialize in backend and mobile development with a focus on payment systems architecture and healthcare protocols. I also build AI-powered automation and agentic workflows using n8n, integrating LLMs and APIs to streamline processes and improve operational efficiency. I’m fluent in English and Spanish and thrive in global, cross-functional teams and in mentoring engineers.

Skills

Experience Level

Expert

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Language

English

Fluent

Spanish; Castilian

Fluent

Work Experience

Senior Software Engineer at Plexo

January 1, 2025 - Present

Developed the Plexo Payment Gateway plugin for WooCommerce, enhancing functionality and compatibility with modern storefronts. Redesigned and restructured the UI/UX, resulting in a 100% increase in online store sales by accelerating and simplifying the purchasing process. Collaborated with cross-functional teams to design and implement innovative payment solutions tailored to diverse client needs.

Senior Software Engineer at Kingbee-Vans

January 1, 2025 - August 11, 2025

Led the rebranding of Fluid Truck's mobile app to align with Kingbee-Vans' market identity, ensuring consistency and enhanced user experience. Integrated AI-based vehicle inspections to streamline processes and significantly improve operational efficiency.

Senior Software Engineer at Fluid Truck

January 1, 2024 - August 11, 2025

Led mobile app development for iOS and Android, collaborating with cross-functional teams and reporting directly to the CTO. Redesigned and improved the mobile app, contributing to a 25% revenue increase by enhancing user experience and functionality. Successfully migrated a legacy Elixir backend to a RESTful Node.js API, improving maintainability and scalability.

Senior Software Engineer at Anexinet (Verinext)

January 1, 2020 - August 11, 2025

Designed and developed backend and mobile solutions for clients in finance and healthcare sectors, including De Lage Landen (DLL) and Canopy Health. Spearheaded development of a COVID-era virtual doctor's office feature integrating HL7 protocols and secure authentication, enabling remote healthcare access. Led migration from Glassfish(Java)/SOAP to Node.js/JSON, improving scalability and reducing costs.

Senior Software Engineer at Ember Tech Ltd.

January 1, 2016 - August 11, 2025

Led the development of mobile applications for both iOS and Android platforms delivering high-quality solutions for clients such as HSBC, Grant Thornton, British Cycling, and the British NHS.

Senior Software Engineer at Usio

January 1, 2014 - August 11, 2025

Designed and developed an innovative mobile payment app integrated with Stripe, Apple Pay, and Google Pay allowing users to create/manage virtual credit cards and track budgets. Developed backend RESTful APIs for robust payment processing. Enhanced payment workflows by implementing virtual POS and customizable payment platforms supporting diverse scenarios.

Senior Software Engineer at 1800-Radiator

January 1, 2012 - August 11, 2025

Designed and implemented ERP solutions to optimize logistics and support scaling operations across the US managing over 250 franchises efficiently.

Software Engineer at CPG Soft

January 1, 2006 - August 11, 2025

Optimized supply chain operations for clients such as PepsiCo, Unilever, and Baesa in LATAM and Caribbean by developing Truck/Gx, an ERP suite tailored for distribution and logistics management.

Senior Software Engineer at Fluid Truck

January 1, 2020 - December 1, 2024

Led end-to-end development of iOS and Android mobile applications, collaborating directly with the CTO and cross-functional teams. Redesigned key app features, resulting in a 25% increase in in-app revenue by improving user experience and functionality. Migrated a legacy Elixir/SOAP backend to a scalable Node.js/REST architecture, greatly improving maintainability and development velocity.

Senior Software Engineer at Anexinet (Verinext)

March 1, 2016 - January 1, 2020

Developed custom backend and mobile solutions for financial (DLL) and healthcare (Canopy Health) clients, aligning with strict industry standards. Implemented a virtual telehealth platform for Canopy Health using HL7 standards and Okta authentication, enabling secure remote patient consultations during COVID-19. Transitioned a legacy GlassFish/SOAP system to a modern Node.js/REST API, enhancing scalability, reducing maintenance costs, and streamlining future integrations.

Senior Software Engineer at Ember Tech Ltd.

February 1, 2014 - March 1, 2016

Led development of iOS and Android mobile applications for clients such as HSBC, Grant Thornton, British Cycling, and the NHS, delivering high-quality, user-friendly solutions. Collaborated with clients to gather requirements and ensured timely delivery of apps that met strict security and usability standards.

Senior Software Engineer at Usio

January 1, 2013 - February 1, 2014

Architected and built mobile payment systems with PCI-compliant security, integrating Stripe, Apple Pay, and Google Pay, enabling users to create virtual credit cards and manage multi-budget expense tracking. Developed and integrated robust backend payment APIs, ensuring secure and efficient processing of thousands of monthly transactions. Enhanced payment workflows by implementing virtual POS systems and customizable checkout features, expanding support for diverse use cases.

Senior Software Engineer at 1800-Radiator

March 1, 2006 - December 1, 2012

Engineered scalable ERP logistics solutions that optimized supply chain operations and supported the expansion of 1-800 Radiator. Enabled the company to efficiently manage over 250 franchises across the U.S.

Software Engineer at CPG Soft

October 1, 1997 - December 1, 2005

Developed and implanted the Truck/Gx ERP suite for distribution and logistics management, streamlining supply chain processes for clients including PepsiCo, Unilever, and Baesa in LATAM and the Caribbean.