Freelancer profile translated to English.
Back to original languageAbout Juliana
Expert Front-End Developer in React, TypeScript, and JavaScript, I design performant, accessible, and scalable web interfaces.
With over 8 years of experience in Front-End development, I support product teams in creating robust, intuitive, and user-friendly web interfaces.
Specializing in React, TypeScript, and JavaScript, I design clear architectures, integrate design systems, and optimize performance and accessibility (a11y).
My approach combines technical rigor and user empathy to deliver elegant and durable interfaces.
Key Skills:
- React / TypeScript / JavaScript
- Modular UIs
- Front-end testing: Jest, Cypress
- Performance & accessibility optimization
- Scalable front-end architecture
Work Methods
- Product and business value oriented
- Fast and iterative delivery
- Clean, scalable, and tested code
- Integrated performance and accessibility
- Fluid collaboration with teams
- Autonomous, proactive, and full of suggestions
Key Projects:
- TrackDéchets: Front-end redesign with integration of the State's Design System, architecture optimization, and reduction of technical debt.
- Prose / PerfectStay: Creation of modular UI components, UX optimization.
📩Available for your React / TypeScript / Front-End projects
Contact me to bring your web interfaces to life.
👨💻Github: @JulianaJM
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Beta Gouv - DINUMReact.js Frontend DeveloperPUBLIC SECTORDecember 2022 - Today (3 years and 6 months)Developer within the Trackdéchets state startup, attached to the Ministry of Ecological Transition, aimed at managing hazardous waste traceability.Joined the front UX team to work on the redesign of the Trackdéchets interface.- Code refactoring and harmonization, reducing duplication and improving maintainability- Implementation of a modular front-end architecture (separation of business logic / UI), facilitating feature evolution; Regular collaboration with UX designers for optimal integration of mockups (Figma)- Integration of the State's Design System, ensuring interface consistency and accessibility- Contribution to the prioritization and organization of functional projects
- ProseReact.js Frontend DeveloperFASHION AND COSMETICSJuly 2021 - May 2022 (10 months)Prose is a startup specializing in fresh, personalized hair care. Each exclusive formulation takes into account personal preferences and is freshly made in NYC by a team of chemists.- Development of user interfaces from mockups (Zeplin) provided by UX designers.- Proposal and implementation of a solution allowing users to resume their consultations without loss of progress, in close collaboration with the PM to align the solution with real needs.- Participation in A/B testing campaigns to highlight product personalization- Redesign of consultation results pages to improve UI, showcase product personalization, and increase conversion rates; coordination with R&D, PM, Data Science, Backend, and Design.www.prose.com
- PerfectStayReact.js Frontend DeveloperTRAVEL AND TOURISMJanuary 2020 - March 2021 (1 year and 3 months)Paris, FrancePerfectStay is a startup specializing in tourism, offering tailor-made travel deals for major brands.- Development and integration of interfaces (UI components, features, and user journeys) from mockups (Zeplin) for prestigious partners in the tourism sector.- Collaboration with a small team (2 developers) dedicated to the quality and consistency of front-end interfaces.
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Education
- State Diploma - Software Architect, Software EngineeringINSTA2012Diplôme d'Etat - Architecte Logiciel, Ingénierie logicielle