# Lead Engineer & Senior Full Stack Developer Location[Portugal](https://jobicy.com/resume-region/portugal.md)Rate, USD $32 / hourWork schedule Full Time, Contract, Part Time, Links Language skills English, Portuguese, SpanishAvailable for Hire Yes Hire me Save Log in to save * ## About me Lead Engineer & Senior Full Stack Developer with 10 years of experience turning complex business requirements into scalable, production-ready products. I specialize in Next.js, TypeScript, Supabase, and Node.js/NestJS, and I’ve led full-cycle development (architecture, implementation, QA, documentation, and delivery) across startups, agencies, and direct client engagements. Recent work includes translating a patented Excel-based financial valuation model into a full-scale, real-time calculation engine, migrations of legacy and no-code systems (Bubble, Xamarin) into modern full-stack platforms, and multi-tenant systems with optimized SOAP/REST APIs handling high-volume data at scale. My current focus is AI systems engineering, specifically designing persistent-memory architectures for LLM-powered applications. I’ve built a reusable “shared brain” pattern: a session-logging and knowledge-continuity layer that lets AI systems retain context across sessions instead of losing it when a conversation ends. I’ve deployed this architecture across multiple client environments, including a HIPAA-aware AI health companion (NestJS, Azure AI Foundry agents, WebSocket streaming, per-tenant vector stores, Prisma multi-tenant data layer, automatic escalation to human care teams) and internal automation tooling for business operations. The pattern generalizes beyond dev environments to any workflow needing durable, structured memory, including customer support, ops, or knowledge management. Beyond hands-on engineering, I mentor developers, maintain technical standards, and keep delivery aligned with business goals and timelines. I’m looking for a stable, growth-oriented team where I can keep building high-impact products and contribute long term to a shared vision. ## Professional area ### [Admin & Virtual Assistant](https://jobicy.com/resume-category/admin.md)[Design & Media](https://jobicy.com/resume-category/design-multimedia.md)[Developer & Engineer](https://jobicy.com/resume-category/dev.md)[Management & Operations](https://jobicy.com/resume-category/management.md) ## Skills ### [.NET](https://jobicy.com/resume-skill/net.md)[Azure DevOps](https://jobicy.com/resume-skill/azure-devops.md)[Backend](https://jobicy.com/resume-skill/backend.md)[C](https://jobicy.com/resume-skill/c.md)[C#](https://jobicy.com/resume-skill/c-3.md)[C++](https://jobicy.com/resume-skill/c-2.md)[CSS3](https://jobicy.com/resume-skill/css3.md)[Firebase](https://jobicy.com/resume-skill/firebase.md)[Frontend](https://jobicy.com/resume-skill/frontend.md)[Full Stack Development](https://jobicy.com/resume-skill/full-stack-development.md)[Git](https://jobicy.com/resume-skill/git.md)[HTML5](https://jobicy.com/resume-skill/html5.md)[JavaScript](https://jobicy.com/resume-skill/javascript.md)[Machine Learning](https://jobicy.com/resume-skill/machine-learning.md)[MongoDB](https://jobicy.com/resume-skill/mongodb.md)[MySQL](https://jobicy.com/resume-skill/mysql.md)[NestJS](https://jobicy.com/resume-skill/nestjs.md)[Next.js](https://jobicy.com/resume-skill/next-js.md)[Node](https://jobicy.com/resume-skill/node.md)[Node.js](https://jobicy.com/resume-skill/node-js.md)[OOP](https://jobicy.com/resume-skill/oop.md)[Prisma](https://jobicy.com/resume-skill/prisma.md)[Project Management](https://jobicy.com/resume-skill/project-management.md)[Python](https://jobicy.com/resume-skill/python.md)[React](https://jobicy.com/resume-skill/react.md)[React.js](https://jobicy.com/resume-skill/react-js.md)[Rest API](https://jobicy.com/resume-skill/rest-api.md)[SoapUI](https://jobicy.com/resume-skill/soapui.md)[Software Project Management](https://jobicy.com/resume-skill/software-project-management.md)[TypeScript](https://jobicy.com/resume-skill/typescript.md) ## Education Sep 2024 - Sep 2027 Bachelor's Degree in Computer Engineering @ Instituto Politécnico de Bragança (IPB) Feb 2022 - Feb 2023 Course @ ThreeJS Journey Online course. Sep 2021 - Sep 2022 Full Stack Web Development Diploma @ National Technological University (U.T.N.) Buenos Aires, Argentina. Achieved top-of-class performance with a final score of 99/100 on the final project. Sep 2015 - Sep 2017 Multimedia Design Degree @ DaVinci Multimedia Design School Buenos Aires, Argentina. ## Experience Feb 2025 - Feb 2026 Tech Lead @ FIJI Insights Designed and delivered a proprietary valuation engine, converting Excel-based financial models into a scalable full-stack Next.js + TypeScript application with Supabase and Valtio. Built a real-time calculation engine, delivered a pixel-perfect front end, and led the migration of a real estate marketplace from Bubble to Next.js + Supabase. Feb 2024 - Feb 2026 Tech Lead @ Prizmstack Agency Led full-stack development of client projects using Next.js, TypeScript, and modern frameworks. Oversaw QA, documentation, technical standards, architecture, coding, deployment, mentoring, and project coordination across multiple simultaneous projects. May 2023 - Nov 2023 Senior Full Stack Developer @ Clubbable Led migration of the app from Xamarin to ReactJS, built reusable components with TypeScript, HTML5, and CSS, managed Azure DevOps pipelines, conducted peer code reviews, implemented unit tests, and coordinated project planning and delivery. May 2025 - Feb 2026 Tech Lead @ Hoskins Equipment Led development of a multi-tenant platform built with Next.js, TypeScript, Tailwind CSS, and Supabase. Wrote and maintained SOAP API services, optimized pagination and data handling for 60,000+ invoices, and delivered a high-fidelity front end aligned with Figma specifications. Feb 2026 - Present Tech Lead @ Wizlo Telehealth Designed and delivered internal AI-powered automation tools, including clinic onboarding workflows, spreadsheet validation automation, and an AI health companion. Architected and shipped the AI backend with NestJS, Azure AI Foundry agents, WebSocket streaming, per-tenant vector stores, Prisma, and HIPAA-aware session management. ## Recommend this talent ## Related resumes [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Health Care AssistantUnited StatesI am a dedicated health care provider with 4 years of experience delivering compassionate home health care services. I am seeking a Health Care Assistant role where I can continue…](https://jobicy.com/cv/id148851.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) People Operations LeaderCosta RicaI am a people-focused operations leader with more than 10 years of progressive experience in employee onboarding, interviewing, training, leadership, process improvement, and operational excellence. I have grown through multiple…](https://jobicy.com/cv/id148849.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Customer Service SpecialistAngolaI am a responsible, creative, and honest professional with strong communication and presentation skills. I adapt easily to new work environments and enjoy working collaboratively as part of a team….](https://jobicy.com/cv/id148848.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Project ManagerKazakhstanI am a cross-functional Project Manager with more than 3 years of experience driving game development projects from concept through Steam release. I have worked in environments where I needed…](https://jobicy.com/cv/id148846.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Senior Full Stack EngineerBrazilI am a Senior Full Stack Engineer and hands-on Tech Lead with more than 7 years of experience building web and mobile products. My core stack includes Node.js, TypeScript, React…](https://jobicy.com/cv/id148842.md) [More Resumes](https://jobicy.com/talent.md)