
Profile
I help organisations modernise front-end platforms and deliver maintainable, high-performance software that drives business outcomes.
Core strengths:
- ⚙️ Scalable Architecture: Designing and building high-traffic, user-focused enterprise-grade interfaces.
- 🛠️ Code Quality & ROI: Reducing long-term maintenance costs through reusable components, TDD/BDD, and CI/CD pipelines.
- 🤖 AI-Ready Engineering: Expanding skills in Generative AI & Context Engineering to modernise workflows.
- 🚀 Agile Execution: Translating business requirements into clear, deployable technical solutions on time.
- 🤝 Cross-Functional Leadership: Partnering with Product, Design, Testers and DevOps to deliver predictable and measurable outcomes.
If you’re scaling products, improving front-end foundations, or exploring AI-driven efficiencies, don't hesitate to contact me 🙂
Recommendations
Carlos Heron - Engineer Leader at Sportingtech
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I've worked with Juan for well over 8 years at William Hill. A talented and professional developer who has been key in delivering a number of projects during his time here.
Juan is highly skilled and certainly takes it upon himself to learn new technologies and working practices. He played his part in transforming the team on the journey from "good" to "great".
I wish Juan every success and will no doubt be an asset to any company he works with.
Pablo Nuñez Navarro - Software Engineer at GitHub
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Juan Cruz es un trabajador con mucha dedicación y una estupenda actitud para realizar las tareas encomendadas. Tiene un alto nivel de exigencia y sabe buscar sus propias soluciones y descubrir vías nuevas. Trabaja bien en equipo, ayudando y apoyándose en los demás. Es un comunicador vocacional con una gran presencia y educación.
John Fontaine - Lead Frontend Developer at Quill
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I hired Juan on the basis of his extensive freelancing experience and web development portfolio. He immediately integrated with the team and has become an essential player. Extremely organized individual with outstanding front-end development skills, always keeps on top of the latest tech, and brings forth great ideas.
He has shown dedication, passion for his craft, and overall, it's a pleasure to work with Juan.
Lucia Ramos - iOS PO at Evoke
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I had the pleasure to have Juan in my first team as PO in William Hill. He is a very productive person, multi-skill & deadline oriented. His positive attitude helped getting projects on track and on budget, while his attention to details and UI experience made a significant impact on the quality of our deliveries.
Jerry Sweeney - Founder and Managing Director - CloudCIX
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Juan is a talented web designer with excellent good graphic design skills. He is a fantastic team worker. Juan is dedicated to project completion on time and within budget.
Bernardo Rumbado - Technical Team Lead at Nexoom
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Juan Cruz en lo profesional posee una gran disposición para el trabajo, proactivo en la resolución de las tareas encomendadas y con buena actitud para el trabajo en equipo ayudando y dejándose ayudar por los compañeros.
En lo personal es una persona con un carácter amable y afable, sabiendo en cada momento como dirigirse a su interlocutor lo que le da muy buenas capacidades para tratar con el cliente.








