Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm a Front-end Developer with 4 years of experience, specializing in JavaScript and building modern, high-performance interfaces focused on user experience. I have strong expertise in HTML, CSS, JavaScript, React, and React Native, delivering web and mobile applications with quality, usability, and efficiency. I have solid experience with Liferay, REST APIs, Git, CI/CD automation, and end-to-end testing using Cypress. I work in agile environments with Scrum and Kanban, actively participating in refinements, planning sessions, and technical discussions. I hold a postgraduate degree in Artificial Intelligence with a Python foundation, and I am eager to apply AI concepts to product development and integrate these solutions into front-end and full-stack ecosystems while mentoring Trainee and Junior developers.…I'm a Front-end Developer with 4 years of experience, specializing in JavaScript and building modern, high-performance interfaces focused on user experience. I have strong expertise in HTML, CSS, JavaScript, React, and React Native, delivering web and mobile applications with quality, usability, and efficiency. I have solid experience with Liferay, REST APIs, Git, CI/CD automation, and end-to-end testing using Cypress. I work in agile environments with Scrum and Kanban, actively participating in refinements, planning sessions, and technical discussions. I hold a postgraduate degree in Artificial Intelligence with a Python foundation, and I am eager to apply AI concepts to product development and integrate these solutions into front-end and full-stack ecosystems while mentoring Trainee and Junior developers.

Daniel Friggi de Oliveira Souza

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





I'm a Front-end Developer with 4 years of experience, specializing in JavaScript and building modern, high-performance interfaces focused on user experience. I have strong expertise in HTML, CSS, JavaScript, React, and React Native, delivering web and mobile applications with quality, usability, and efficiency. I have solid experience with Liferay, REST APIs, Git, CI/CD automation, and end-to-end testing using Cypress. I work in agile environments with Scrum and Kanban, actively participating in refinements, planning sessions, and technical discussions. I hold a postgraduate degree in Artificial Intelligence with a Python foundation, and I am eager to apply AI concepts to product development and integrate these solutions into front-end and full-stack ecosystems while mentoring Trainee and Junior developers.…I'm a Front-end Developer with 4 years of experience, specializing in JavaScript and building modern, high-performance interfaces focused on user experience. I have strong expertise in HTML, CSS, JavaScript, React, and React Native, delivering web and mobile applications with quality, usability, and efficiency. I have solid experience with Liferay, REST APIs, Git, CI/CD automation, and end-to-end testing using Cypress. I work in agile environments with Scrum and Kanban, actively participating in refinements, planning sessions, and technical discussions. I hold a postgraduate degree in Artificial Intelligence with a Python foundation, and I am eager to apply AI concepts to product development and integrate these solutions into front-end and full-stack ecosystems while mentoring Trainee and Junior developers.

Available to hire

I’m a Front-end Developer with 4 years of experience, specializing in JavaScript and building modern, high-performance interfaces focused on user experience. I have strong expertise in HTML, CSS, JavaScript, React, and React Native, delivering web and mobile applications with quality, usability, and efficiency.

I have solid experience with Liferay, REST APIs, Git, CI/CD automation, and end-to-end testing using Cypress. I work in agile environments with Scrum and Kanban, actively participating in refinements, planning sessions, and technical discussions. I hold a postgraduate degree in Artificial Intelligence with a Python foundation, and I am eager to apply AI concepts to product development and integrate these solutions into front-end and full-stack ecosystems while mentoring Trainee and Junior developers.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Liferay Developer (Freelance / Temporary) at NTT Data / Neoenergia

June 1, 2025 - December 1, 2025

Deliveries, evolutionary maintenance, and bug fixes for portals and fragments; support solution design, define scope, understand business rules, and choose technical approaches. Participate in the full lifecycle from analysis to delivery, ensuring validations and compliance with requirements. Collaborate with other developers and business areas to ensure clarity, alignment, and quality. Develop complete and customized modules for the platform, contributing to ongoing improvements. Engage in technical meetings to discuss planning, impacts, and architectural decisions to ensure scalability, performance, and maintainability.

Liferay Solutions Architect at Cate na IT – CBYK / Smiles

March 1, 2025 - January 1, 2026

Architectural definition and analysis of optimal development approaches; documentation of approval flows and design of scalable architectures aligned with business needs. Lead training sessions and provide continuous support to the development team, promoting best practices and coding standards. Work with customizations, API integrations, portlet development, backend services, and front-end/back-end orchestration to ensure robustness, security, and performance. Participates in strategic technology planning and coordinates with stakeholders to align expectations and requirements.

Senior Front-End Developer at GX2

July 1, 2023 - July 1, 2025

Develop robust and innovative front-end solutions for diverse projects, including e-commerce and CMS platforms. Focus on MVP-driven deliveries, performance optimization, and maintaining a design system. In the latter half of 2024, served as Front-end Technical Lead, overseeing a team of six, conducting code reviews, defining front-end architecture, and advancing continuous delivery. Coordinated the training and mentoring of a trainee team (03/2025) with a 100% promotion rate. Since 03/2025, contributing to an international project based in Ireland for IMS Marketing Agency using WordPress, emphasizing scalability and UX.

Advanced Mid-Level Front-End Developer at Magna Sistemas

July 1, 2021 - July 1, 2024

Developed solutions for multiple client websites, promoted platform improvements, and provided user training to improve development processes. Key challenges included working with Liferay DXP 7.3, building portals from scratch, fixing bugs in portal versions, creating custom solutions for different portal areas, improving user experience, and implementing automated tests with Cypress. Supported cross-functional teams and contributed to design system maintenance.

Front-End Developer Intern at CEFE – City Hall

September 1, 2020 - June 1, 2021

Website creation and Moodle-based educational platform maintenance (blog and site updates).

Front-End Developer Intern at Hipocampus

February 1, 2020 - April 1, 2020

Portal development for educational Moodle platforms; front-end development and related tasks.