I'm a frontend-focused developer with over five years of international experience building high-traffic, scalable web applications. My main expertise lies in the React ecosystem and modern JavaScript/TypeScript workflows. I bridge design and code with clean, testable, and maintainable UI, and I enjoy introducing smart tooling, automation, and AI-enhanced development environments. I thrive in both corporate agile environments and lean startup teams. I value collaboration, clear communication, and ownership from concept to deployment, and I continuously seek opportunities to optimize UX and developer experience through reusable components and robust CI/CD processes.

Luann de Carvalho Sapucaia

I'm a frontend-focused developer with over five years of international experience building high-traffic, scalable web applications. My main expertise lies in the React ecosystem and modern JavaScript/TypeScript workflows. I bridge design and code with clean, testable, and maintainable UI, and I enjoy introducing smart tooling, automation, and AI-enhanced development environments. I thrive in both corporate agile environments and lean startup teams. I value collaboration, clear communication, and ownership from concept to deployment, and I continuously seek opportunities to optimize UX and developer experience through reusable components and robust CI/CD processes.

Available to hire

I’m a frontend-focused developer with over five years of international experience building high-traffic, scalable web applications. My main expertise lies in the React ecosystem and modern JavaScript/TypeScript workflows. I bridge design and code with clean, testable, and maintainable UI, and I enjoy introducing smart tooling, automation, and AI-enhanced development environments. I thrive in both corporate agile environments and lean startup teams.

I value collaboration, clear communication, and ownership from concept to deployment, and I continuously seek opportunities to optimize UX and developer experience through reusable components and robust CI/CD processes.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Portuguese
Fluent
English
Fluent
Spanish; Castilian
Advanced
German
Intermediate

Work Experience

Founder and Software Consultant at Batista Consulting
December 1, 2025 - Present
Design and delivery of tailored internal software for European SMEs, focused on aligning systems with real workflows and improving operational visibility.
Software Engineer at All Insight
September 1, 2024 - Present
Designed and delivered internal web applications used by enterprise clients, with full ownership from concept to deployment. Introduced CI/CD pipelines and test automation improvements using Cypress and Jest. Defined reusable component patterns and documentation to standardize frontend delivery. Integrated intelligent test workflows to reduce manual quality checks.
IT Consultant at Prime IT (Bank Project)
August 1, 2023 - July 4, 2024
Led frontend development for a high-value SPA payment portal used by businesses. Reduced manual data-entry work by 90% with automation scripting using Puppeteer and Node.js. Contributed to internal React UI libraries for unified design and UX. Collaborated on enhancing form validation with predictive field behaviors.
Software Engineer at Ingress o.com
April 1, 2022 - May 1, 2023
Built and tested scalable web interfaces for a ticketing system with over 200M annual users. Delivered high-performance mobile-first checkout experiences for major events like Rock in Rio. Mentored junior devs and improved Cypress and Jest test coverage with automated flows. Participated in UX decisions based on user flow data and access logs.
Software Developer at AWS Radix Engineering
September 1, 2020 - April 1, 2022
Developed internal dashboards and telemetry systems for oil & gas operations. Built Azure dashboards reducing resource consumption costs by $1.5K/week. Mentored junior devs and improved Cypress and Jest test coverage with automated flows. Participated in DB migration projects improving system efficiency and reducing licensing costs.
President / Frontend Developer
October 1, 2019 - December 1, 2020
Turned company finances around through new partnerships and improved client acquisition. Delivered workshops and training to over 20 students in modern frontend tools. Negotiated software deals and managed dev teams in a startup-like structure.

Education

Bachelor of Information Systems at Federal Fluminense University (UFF)
January 1, 2018 - January 1, 2022

Qualifications

Add your qualifications or awards here.

Industry Experience

Manufacturing, Financial Services, Software & Internet, Professional Services, Media & Entertainment