I am a mid-level Frontend Engineer based in Berlin, Germany, delivering end-to-end production applications serving 10,000+ users. I specialize in React, TypeScript, and component architecture, with a track record of building scalable UI systems, leading API integrations, and driving performance improvements. I write clean, maintainable code that creates real user impact and I'm actively growing toward Tech Lead responsibilities. My flagship project Moniv demonstrates my ability to own product strategy and full-stack delivery as a sole engineer, including frontend, backend integration, UX, and deployment. I design UX, define feature roadmaps, and implement scalable architecture with WCAG accessibility in mind; I also contribute to architecture decisions and code reviews to uplift the whole team's output.…

Elisangela Pethke

I am a mid-level Frontend Engineer based in Berlin, Germany, delivering end-to-end production applications serving 10,000+ users. I specialize in React, TypeScript, and component architecture, with a track record of building scalable UI systems, leading API integrations, and driving performance improvements. I write clean, maintainable code that creates real user impact and I'm actively growing toward Tech Lead responsibilities. My flagship project Moniv demonstrates my ability to own product strategy and full-stack delivery as a sole engineer, including frontend, backend integration, UX, and deployment. I design UX, define feature roadmaps, and implement scalable architecture with WCAG accessibility in mind; I also contribute to architecture decisions and code reviews to uplift the whole team's output.…

Available to hire

I am a mid-level Frontend Engineer based in Berlin, Germany, delivering end-to-end production applications serving 10,000+ users. I specialize in React, TypeScript, and component architecture, with a track record of building scalable UI systems, leading API integrations, and driving performance improvements. I write clean, maintainable code that creates real user impact and I’m actively growing toward Tech Lead responsibilities.

My flagship project Moniv demonstrates my ability to own product strategy and full-stack delivery as a sole engineer, including frontend, backend integration, UX, and deployment. I design UX, define feature roadmaps, and implement scalable architecture with WCAG accessibility in mind; I also contribute to architecture decisions and code reviews to uplift the whole team’s output.

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Skills

Experience Level

React JS
Expert
JavaScript
Expert
TypeScript
Expert
HTML5
Expert
CSS
Expert
Node.js
Expert
GitHub
Expert
UI
Intermediate
Product Design
Intermediate

Language

Portuguese
Fluent
English
Advanced
German
Fluent

Work Experience

Frontend Engineer at NevTec
August 1, 2024 - Present
Delivered production frontend features end-to-end using React and TypeScript, owning task scope, technical decisions, and release quality. Designed a reusable component library, enabling faster UI development and consistency at scale. Led API integration for core flows, modeled data contracts with backend teams, and handled edge/corner cases. Improved performance via code-splitting, memoisation, and rendering optimisations. Conducted code reviews, mentored junior contributors, and helped shape sprint planning.
Frontend Engineer at NevTech
August 1, 2024 - Present
Delivered production frontend features end-to-end using React and TypeScript, owning task scope, technical decisions, and release quality. Designed and built a reusable component library that reduced UI development time across the team and enforced consistency at scale. Led API integration for key product flows, modelled data contracts with backend developers, and handled edge cases and async error states. Drove performance improvements through code-splitting, memoisation, and rendering optimisation, resulting in measurably faster load times on critical pages. Contributed to architectural decisions in sprint planning, influencing technical direction beyond individual task execution. Conducted code reviews focused on maintainability and scalability; mentored junior contributors during onboarding.

Education

iOS Developer Nanodegree at Udacity
January 11, 2030 - April 29, 2026
React & React Native for Web and Mobile at Alura
January 11, 2030 - April 29, 2026
Web & Mobile Development Bootcamp at Udemy
January 11, 2030 - April 29, 2026

Qualifications

re
April 29, 2026 - April 29, 2026

Industry Experience

Software & Internet, Education, Professional Services, Media & Entertainment
    paper Moniv – Personal Finance Dashboard App

    Moniv is a modern personal finance web application designed to help users track expenses, visualize financial data, and gain actionable insights.
    Built with React and TypeScript, the app focuses on performance, clean UI, and a smooth user experience. It includes features such as expense tracking, categorized transactions, and an interactive dashboard with charts for financial analysis.
    The goal of this project was to create a real-world product with scalable architecture and intuitive design, simulating a production-ready fintech application.

    Live: https://www.twine.net/signin