Freelancer profile translated to English.
Back to original languageAbout Ivan
Software engineer with +4 years creating high-impact web products
I master:React.js, Node.js, TypeScript, Redux Toolkit, Styled Components, WebSockets, Docker, and Azure. I deliver interfaces that combine performance (> 60 FPS in 3D; FCP < 1 s in SSR), SEO 90+ in Lighthouse, and a clean UX/UI design.
What can I do for your project?
- Front-end development and scaling (React, Next.js, Vite)
- 3D visualization & digital twins with Three.js and live data
- Performance and SEO optimization: Core Web Vitals, SSR, caching, and lazy-loading
- Component architecture and responsive design with good accessibility practices
- Automation & DevOps: CI/CD pipelines, Docker, GitHub Actions, deployments on Azure or Vercel
Why hire me:
- Full-stack vision (Node.js, C#) to understand the complete product lifecycle.
- “No-stuck” culture: I detect and eliminate blockers before they impact the business.
- Experience in Agile/Scrum environments, clear communication, and team mentoring.
- Commitment to quality and continuous delivery: daily deployments without downtime.
Do you have any ideas/projects that need digitalization? Let's talk and make them a reality.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- NucleooMedium software engineerNovember 2024 - Today (1 year and 7 months)Technologies: React, Typescript, Node, Express, XML, XQUERY.
- I lead the design and evolution of a high-performance collaborative XML editor based on React (UI) and Node.js + Express (API).
- I orchestrate the solution using Docker, ensuring reproducible environments and “zero-downtime” deployments.
- I define XQuery schemas and modules to validate and transform large volumes of content, improving data quality before publication.
- I implemented a complete CI/CD pipeline (tests, code review, and automated linting) that has reduced QA-detected defects by more than 25%.
- IDEAFront end developerApril 2023 - October 2024 (1 year and 6 months)Madrid, SpainKey technologies: React (Vite), TypeScript, Redux Toolkit, Three.js, Material-UI, Docker, Microsoft Azure.
- I developed a 3D digital twin in Three.js + React, integrating live data and real-time simulations from C# services.
- I managed large telemetry streams with Redux Toolkit and WebSockets, ensuring state consistency under high concurrency.
- I optimized front-end rendering and functionality by applying instancing, mesh lazy loading, and other advanced techniques, improving visual and performance experience.
- I managed infrastructure on Microsoft Azure (Linux VM + Docker containers), defining deployment pipelines and proactive monitoring to maintain availability and facilitate scaling.
- Nomad HomesFront-end DeveloperNovember 2022 - April 2023 (5 months)Madrid, SpainTechnologies: Nextjs, React, Typescript, Redux Toolkit, Styled components, SEO, Version Control Git & Github.
- I accelerated time-to-production by 23% by optimizing component architecture and automating front-end regression tests.
- I drove SEO optimizations and Lighthouse checks that significantly improved Core Web Vitals.
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Education
- Ingeniería de softwareUniversidad Politécnica de Madrid (UPM)2023