Freelancer profile translated to English.
Back to original languageAbout Cesar
Hello 👋 I'm César, a Full-Stack Developer. I specialize in creating intuitive, secure, and scalable web platforms, always working in agile environments.
My approach is simple: I don't just "code", I like to understand the product to provide real solutions. In fact, in my latest projects, I've managed to reduce development time by 20% and improve team efficiency by 25% by optimizing workflows.
💻 My main stack (what I use daily):
• Frontend: React.js, Next.js, TypeScript, and JavaScript. I'm also proficient in optimizing designs with Figma.
• Backend: Python (FastAPI), C# .NET Core, and Node.js.
• Data and DevOps: SQL Server and Azure DevOps. Additionally, I have training in Data Science and Business Intelligence (Power BI, Tableau, ETL pipelines).
As I speak 5 languages (Spanish, English, French, German, and Portuguese), I adapt very well to international teams and global projects.
If you're looking for an autonomous developer who meets deadlines and communicates clearly without excessive jargon, write to me and let's chat about your project.
Spanish
Native or bilingual
English
Fluent
German
Conversational
French
Fluent
Dutch
Conversational
Can work on-site
Madrid (up to 50km)
Experience
- DavidsonFull-Stack DeveloperTECHApril 2025 - Today (1 year and 2 months)Developed a full-stack B2B system for Applus (C# .NET Core, SQL Server, Next.js/TypeScript) optimizing administrative modules and automated reporting, and built the backend for an internal time-tracking tool using Python and FastAPI, driving overall performance and scalability. WCAG
- PortripWeb DeveloperMarch 2024 - March 2025 (1 year)Improved frontend and backend performance using React and Python, reducing development time by 20%. Optimized booking flows and mobile design with Figma, increasing team efficiency by 25%. Led the frontend of the booking project, meeting deadlines, budget, and satisfaction goals. WCAG
- AepticFrontend DeveloperMarch 2023 - February 2024 (11 months)Optimized the administrative system's frontend in React, reducing issues and improving error handling. Streamlined bug-fix workflows to boost team efficiency. Contributed to the migration and maintenance of the ITV Andalucía platform's frontend in an agile environment, consistently meeting deadlines. WCAG
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Education
- DATA SCIENCE AND BUSINESS INTELLIGENCEIronhack2025DATA SCIENCE AND BUSINESS INTELLIGENCE
- Full - Stack Web DeveloperUdemy Alumni2023Full - Stack Web Developer