Freelancer profile translated to English.
Back to original languageAbout Andres
Solution Architect and Senior Full-Stack Developer: Technology with a Business Vision
I'm Andrés Saá, and for the past 15 years, I've transformed complex ideas into functional digital products. As the founder of my own SaaS and a consultant for major brands, I've learned that software is not just code; it's a tool to achieve business objectives, profitability, and scalability.
What do I bring to your project?
- **Senior Full-Stack**: I have experience in a multitude of projects working on the Frontend (JS, TS, React, Vue) and Backend (Node.js, PHP, MySQL, PostgresSQL). I'm not a passive executor; I analyze the feasibility of each functionality before implementing it.
- **Product Mindset**: I've been CEO and CTO. I understand pricing, return on investment, and user experience (UI/UX). I don't just build what you ask; I advise you on what your project truly needs to succeed.
- **Solution Architecture**: I design solutions based on SOLID principles and the architecture best suited for your project, ensuring your platform is easy to maintain and evolve.
- **AI Integration**: I optimize development processes with cutting-edge AI tools (Claude, Gemini), reducing delivery times without sacrificing quality.
I act as a **technical partner**. My style is direct, approachable, and with a good sense of humor. If I see that a decision compromises stability or doesn't deliver as expected, I'll tell you with complete transparency. I seek projects with real technical challenges where assertive communication is the priority.
Shall we talk about your project? Tell me what you're working on, and we'll find the best way to make it a reality.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- YampFounder | Software Architect | Full-Stack DeveloperSOFTWARE PUBLISHINGSeptember 2020 - Today (5 years and 11 months)Madrid, SpainTechnical and development leadership, both in my own startup and in consulting projects. Aligning business objectives with technical reality, designing and programming robust and scalable solutions.ARCHITECTURE AND TECHNICAL CONSULTING► Technology evaluation and system design, documenting requirements and resources.► Adaptability to the team's stack (JS/TS, C# or PHP).► Workflow Orchestration: Integration of Orkes Conductor (C#) with the client's backend and external services to connect the entire ecosystem.► Mass Shipping Management: Implementation of BullMQ + Redis in Yamp's backend to schedule B2B emailing campaigns.SENIOR FULL-STACK DEVELOPMENT► Active programming as external reinforcement in technically demanding projects.► Mastery of the JS/TS ecosystem (Node.js, React, Vue).► Quality and Testing: Implementation of unit, integration, and E2E tests using Jest, Vitest, and Playwright.► Focus on clean code, scalability, and professional quality standards.CTO AT BOXBUDDY (SaaS)► Technical direction and product definition from scratch: from architecture and infrastructure to product logic.► Development of the product Landing Page and the MVP in TS with NodeJS, MySQL, and NuxtSENIOR FRONTEND (ONE2ONE)► Implementation of new functionalities in a complex B2B platform (React)► Refactoring of business logic► Resolution of critical bugsHIGHLIGHT ACHIEVEMENT: "RISING TOOL 2021" AWARD► Creation and launch of Yamp, awarded for its technical innovation and disruptive value proposition.
- Hanzo StudioSenior Frontend DeveloperSOFTWARE PUBLISHINGJuly 2020 - March 2021 (8 months)► Quality and Precision Development: Working with a stack chosen to be stable and have the best performance, developing online platforms, prioritizing code quality and an impeccable user experience.► Agile Methodologies: Active participation in well-optimized workflows, with short delivery cycles and fluid technical communication with high-level profiles.► Frontend Excellence: Application of modern Javascript/Vue/Nuxt architectures to ensure a tested, scalable product aligned with the client's visual standards.
- Walmeric Soluciones S.L.Frontend Team LeaderSOFTWARE PUBLISHINGDecember 2014 - October 2018 (3 years and 11 months)Madrid, SpainLeadership and Strategic Management:► Team Leadership (Hybrid): Responsible for the internal Frontend team and the selection and management of external development providers, ensuring a cooperative work model aligned with company standards.► Corporate Liaison: Direct management with technical departments of Mapfre, Movistar, Vodafone, and Orange for the integration of customized solutions and resolution of complex incidents.Innovation and Technical Architecture:► AI & Chatbots (2017): Pioneer in the integration of Artificial Intelligence services for the development of operational Chatbots, connecting technology with the marketing strategy of major clients.► Big Data Optimization: Analysis of data in large-volume environments for the improvement of technical and functional processes of the platform.► Security and Compliance: Architecture of libraries and applications under strict security protocols and data obfuscation, passing audits in critical sectors (Banking and Insurance).Business Results:► Conversion: Optimization of the tracking architecture led to an increase of up to 5x in the lead-to-sale conversion rate for key clients.► Pre-sales Support: Active collaboration in product presentations and preparation of technical guides to facilitate closing large accounts.
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Education
- Master in Web Application DevelopmentCICE2010
- EFL (English as a Foreign Language)CPCC2019Curso de inglés avanzado en Charlotte, North Carolina, EEUU.
Certifications
- Docker CoursePlatzi2019
- Angular.js CoursePlatzi2016