I'm a software developer focused on delivering business value, building strong relationships, and thriving in collaborative teams. I enjoy guiding projects from concept to delivery, leading cross-functional teams of 3-10 engineers, and delivering SaaS, CRM, and ERP solutions. With 8+ years as a Front-End Developer, I specialize in JavaScript, TypeScript, ReactJS, NextJS, NodeJS, and React Native for iOS/Android.

Euclides Rosário

I'm a software developer focused on delivering business value, building strong relationships, and thriving in collaborative teams. I enjoy guiding projects from concept to delivery, leading cross-functional teams of 3-10 engineers, and delivering SaaS, CRM, and ERP solutions. With 8+ years as a Front-End Developer, I specialize in JavaScript, TypeScript, ReactJS, NextJS, NodeJS, and React Native for iOS/Android.

Available to hire

I’m a software developer focused on delivering business value, building strong relationships, and thriving in collaborative teams. I enjoy guiding projects from concept to delivery, leading cross-functional teams of 3-10 engineers, and delivering SaaS, CRM, and ERP solutions.

With 8+ years as a Front-End Developer, I specialize in JavaScript, TypeScript, ReactJS, NextJS, NodeJS, and React Native for iOS/Android.

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Experience Level

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

Portuguese
Fluent
English
Fluent
Spanish; Castilian
Intermediate

Work Experience

Senior Front-end Software Developer at Leadster
April 1, 2024 - April 1, 2024
Started the refactoring process of the main Chat Platform Application for Lead Generation in Conversational Marketing with +2 K clients and +200K monthly users. Motivated the tech team with 5 presentations on IT, and software development/maintainability. Composed 100% of the new AI Assistant UI in collaboration with the Design team.
Lead Mobile Engineer at Datasales
February 1, 2023 - February 1, 2023
Coordinated a mobile development team with 5 engineers in collaboration with 2 other departments (product and support teams). Delivered 2 Mobile Apps with +3000 active users, using CI/CD to deliver to the App Stores. Increased the app reaching +30% more performance for old devices.
Front-End Software Developer at Datasales
August 1, 2022 - August 1, 2022
Boosted the integration of 3 different marketing tools APIs, and automated software updates using CI/CD. Debugged, and fixed production issues +30% of the time in collaboration with the user support team. Created a module from scratch reducing the CI /CD Pipeline build & testing time by +25%.
Front-End Developer at Interdigitos
February 1, 2022 - February 1, 2022
Delivered new features +60% of the time, Fixed Bugs +20% of the time, and code review 20% of the time using ReactJS & ElectronJS, mainly in SaaS OCR and Document Management System. Added features on 3 main projects, one of which became the main company income. Developed web/desktop applications with +300 daily users.
Web Design Assistant
December 1, 2020 - December 1, 2020
Designed prototypes and layouts for +2 Web applications, and created wireframes for testable products with usability tests.
Fullstack PHP Developer at Angola IT
August 1, 2019 - August 1, 2019
Architected and debugged school management software, delivering for +5 Clients in +10 different Institutions.
Senior Full-Stack Software Developer at Tripee
June 1, 2024 - Present
Designed 2+ frontend applications from scratch (Dashboard and Backoffice) and 10+ microservices for ride-hailing with 50K+ monthly users; led teams of 3-10 engineers and contributed to SaaS solutions.
Senior Front-end Software Developer at Leadster
February 1, 2023 - April 1, 2024
Refactored the main Chat Platform Application for Lead Generation in Conversational Marketing with 2K+ clients and 200K+ monthly users; delivered the new AI Assistant UI in collaboration with Design team.
Lead Mobile Engineer at Datasales
March 1, 2022 - February 1, 2023
Coordinated a mobile development team of 5 engineers; delivered 2 mobile apps with 3000+ active users; improved performance on older devices by +30% and implemented CI/CD pipelines.
Front-End Developer at Interdigitos
June 1, 2020 - February 1, 2022
Delivered features for SaaS OCR and Document Management System; performed code reviews and contributed to user-facing components; enabled 300+ daily users.
Full-Stack PHP Developer at Angola IT
February 1, 2018 - August 1, 2019
Architected and debugged school management software, delivering for 5+ clients across 10+ institutions.
Web Design Assistant at Interdigitos
March 1, 2020 - December 1, 2020
Designed prototypes and layouts for 2+ web applications; created wireframes for testable products with usability tests.

Education

UX Design Certification at Design Circuit
January 11, 2030 - May 1, 2025
UX Design Certification at Maptess
January 11, 2030 - December 1, 2026
Testing JavaScript Apps at Kent C. Dodds Tech LLC
March 1, 2023 - January 23, 2026

Qualifications

UX Design Certification
January 11, 2030 - May 1, 2025
Electronics & Entrepreneurship
January 11, 2030 - January 23, 2026
UX Design Certification
January 11, 2030 - December 1, 2026
Testing JavaScript Apps
March 1, 2023 - January 23, 2026
Electronics & Entrepreneurship
January 11, 2030 - January 23, 2026

Industry Experience

Software & Internet, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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