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Hi, I'm Eduardo Griesang, a results-oriented frontend software engineer from Brazil. I design, build, and maintain web and mobile apps with a focus on performance and exceptional user experience. With 5+ years of experience across React, Next.js, Angular, Node.js, and Python, I excel at delivering scalable frontend solutions, REST APIs, microservices, and CI/CD. I enjoy turning complex requirements into polished interfaces and continuously learning new technologies to improve product quality.…Hi, I'm Eduardo Griesang, a results-oriented frontend software engineer from Brazil. I design, build, and maintain web and mobile apps with a focus on performance and exceptional user experience. With 5+ years of experience across React, Next.js, Angular, Node.js, and Python, I excel at delivering scalable frontend solutions, REST APIs, microservices, and CI/CD. I enjoy turning complex requirements into polished interfaces and continuously learning new technologies to improve product quality.

Eduardo Henrique Griesang

Front-End Developer, Web Developer, Full Stack Developer, +2

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Hi, I'm Eduardo Griesang, a results-oriented frontend software engineer from Brazil. I design, build, and maintain web and mobile apps with a focus on performance and exceptional user experience. With 5+ years of experience across React, Next.js, Angular, Node.js, and Python, I excel at delivering scalable frontend solutions, REST APIs, microservices, and CI/CD. I enjoy turning complex requirements into polished interfaces and continuously learning new technologies to improve product quality.…Hi, I'm Eduardo Griesang, a results-oriented frontend software engineer from Brazil. I design, build, and maintain web and mobile apps with a focus on performance and exceptional user experience. With 5+ years of experience across React, Next.js, Angular, Node.js, and Python, I excel at delivering scalable frontend solutions, REST APIs, microservices, and CI/CD. I enjoy turning complex requirements into polished interfaces and continuously learning new technologies to improve product quality.

Available to hire

Hi, I’m Eduardo Griesang, a results-oriented frontend software engineer from Brazil. I design, build, and maintain web and mobile apps with a focus on performance and exceptional user experience.

With 5+ years of experience across React, Next.js, Angular, Node.js, and Python, I excel at delivering scalable frontend solutions, REST APIs, microservices, and CI/CD. I enjoy turning complex requirements into polished interfaces and continuously learning new technologies to improve product quality.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Portuguese

Fluent

Spanish; Castilian

Intermediate

Work Experience

Development Leader at Epicor (Agile Solutions Contractor)

April 1, 2024 - Present

Oversee an internal Angular-based framework used across all company projects to maintain a consistent visual aesthetic. Optimized grid performance, reducing loading times by 60% for datasets exceeding 1,000 rows. Improved REST calls operations to Azure by caching data, cutting API calls by one third and saving over $1,000/day. Designed and developed AI-powered features for the framework, integrating GPT-4 for intelligent automation. Upgraded grid layouts with a custom color selection feature following customer's row rules. Implemented unit test quality standards, stabilizing all framework tests within two months. Worked within an Agile/Kanban team, streamlining processes and delivering features consistently on time.

Full Stack Freelance Engineer at Hotay

April 1, 2024 - October 26, 2025

Partnered directly with the CEO to build and maintain customer websites and web applications. Redesigned business websites, improving UI, UX, and SEO, resulting in a 27% increase in user traffic. Developed a comprehensive sales dashboard that tracks individual performance, company goals, spending trends, and historical comparisons, enhancing data visualization and enabling strategic decision-making.

Frontend Freelance Engineer at Contra / UpWork

February 1, 2023 - October 26, 2025

Worked on dozens of projects via Contra and UpWork, specializing in web design and frontend development. Designed and built the chatbot UI for Instro.ai, optimized token usage and implementing streaming text functionality for improved efficiency. Developed high-converting landing pages for multiple businesses, leading to a 30% increase in customer acquisition. Collaborated with backend developers to efficiently integrate frontend and backend using Node.js and Express.