Nelson Ramírez

Senior Frontend Developer | Data Analysis

Salaire / Taux journalier

Paris, France

Freelance, ouvert au CDI

Peut venir sur site

Expertises

Power BIJavascriptDéveloppement FrontendData AnalysisTypescriptPythonGitpandasBase de données SQLRequêtes SQLWebpackUX Product DesignVue

Langues

Espagnol (Maternelle)Français (Maternelle)Anglais

À propos

Introduction

Frontend Engineer & Data Analyst with 10+ years building scalable web applications for 800k+ users. Led development of 3D visualization platforms, customer portals, and chatbot automation systems using Vue.js, Three.js, and Azure. Specialized in UX-driven development with proven expertise in performance optimization and user analytics.

Liens

Expérience de travail

Senior Frontend Engineer

Augment SAS

juin 2023 - mars 2024

10 mois

Paris, France

Augment, a startup company providing real-time 3D model visualization via mobile and web for R&D, field sales, e-commerce, training, and more. Leading the frontend development of the web platform, used by over 800k users, which included a 3D model catalog manager and an online 3D editor: - Development and enhancement of the existing web app (Vue.js, Three.js). - Proposal and design of new features aligned with product strategy. - Development of the online 3D editor (Vue.js, Three.js). - Development of the catalog manager (upload, update, edition of models). - Integration, bug fixing and improvement of third-party libraries used by the web application. - Planning, designing, documenting and developing new product features in close collaboration with the backend team. - Usage data analysis and user feedback analytics to guide UX/UI decisions and product roadmap.

ENGIE Entreprises et Collectivités

nov. 2018 - déc. 2022

4 ans 2 mois

Paris, France

Microsoft Chatbot Developer | Data Analyst

avr. 2020 - déc. 2022

2 ans 9 mois

Paris, France

Chatbot Design & Development on Microsoft Azure for the automation of multiple use cases of customer support center: - Design of conversations and dialogue flow logic. - Training the model on intents and entities. - Continuous development and deployment of the Bot application in Node.js with Microsoft Bot Framework. - Proposing solutions for continuous improvement. - Performance data analysis of the chatbot with Power BI (Data Analytics). - Definition and monitoring of key performance indicators (KPIs).

Senior Frontend Developer

nov. 2018 - déc. 2022

4 ans 2 mois

Paris, France

Development of the Bill-e Client Space, a web application focused on the essentials, allowing customers to have a consolidated view of consumption and billing data across all their site areas, as well as tracking contract production and bulk invoice downloading. - Meeting the needs and requirements of different business teams. - Designing and implementing new scalable features. - Ensuring technical success of the project to accommodate interactions from thousands of application users. - Implementing necessary fixes. - Collaborative user research workshops with all business teams. - UX and UI design and implementation of new features. - Development, coding, and deployment of new frontend modules in Vue.js. - Adapting the application interface to a new graphic design. - Technical collaborative workshops with development teams based in Paris and Lyon.

Engineer Intern

Altran

avr. 2018 - déc. 2018

9 mois

Paris, France

Development of a guidance system for autonomous vehicles, dedicated to transportation and delivery. R&D project focused on smart mobility and transport automation. - System architecture design (SysML). - UX/UI design of the user mobile application. - Development of guidance algorithms for autonomous vehicle traffic management. - Development of the control server (REST API, Spring Boot). - Development of the embedded application for vehicle operation (Vue.js, ElectronJS, Raspberry Pi).

Head of frontend development

Connexa • Connecting communities

juil. 2016 - janv. 2018

1 an 7 mois

Paris, France

Connexa: the platform empowering community managers globally, with the digital tools needed to build sustainable online communities. At Connexa my functions included (but were not limited to): - Leading the UX/UI Process - Leading the Frontend Development - Design of the Software Architecture and API Services - Design of the Data Model - Supporting and coaching of team members We were selected as a top 50 startup by the 2017 Startup Grind Global Conference, which gave us the opportunity to exhibit the product in one of their fairs in Silicon Valley. The most satisfying things about this amazing experience were being able to work with a multi-cultural team, connecting with people around the globe, and learning about the startup ecosystem and audiences in Europe and the US.

Software Engineer and Developer

Cooltribes

août 2013 - mars 2017

3 ans 8 mois

San Cristóbal - Táchira, Bern - Switzerland, Barcelona - Spain

My job functions were focused on the design, model and development of a wide range of web applications from large-scale platforms to startups in different countries such as Switzerland, Spain and Venezuela. On a regular basis, my duties included: - UX analysis and optimisation - Design and implementation of Software Architectures - Design and implementation of Data Models - Frontend Development - Supporting and coaching team members

Freelance Software Engineer | Web Developper

Upwork

avr. 2013 - déc. 2014

1 an 9 mois

Venezuela, Cuba

Development of a web-based bike rental system for the Castle Rock Adventist Hospital’s Community Bike Program (Colorado, USA) — freelance project: - Analysis, modeling, and design of the software architecture. - Design and implementation of data models. - UX/UI design and responsive interface development. - Fullstack web development from backend to frontend integration.

Web Developer

4Geeks Developers Community

août 2012 - déc. 2013

1 an 5 mois

Caracas, District fédéral, Venezuela

Collaborated in the development of Compumall, one of the largest and most recognized e-commerce platforms in Venezuela, offering a wide range of tech products to consumers and businesses. My responsibilities included: - Design and implementation of scalable and efficient data models to support high-volume transactions. - Fullstack web development, including backend logic and frontend integration. - Implementation of responsive user interfaces to ensure a seamless shopping experience across devices. - Close collaboration with the internal development team to improve performance and user experience. - This experience allowed me to gain valuable insights into the operational and technical challenges of large-scale e-commerce platforms in a fast-paced environment.


Formation

DataScientest.com

Data Analyst

2025 - 2025

4 mois

Université Paris-Saclay

Master's degree

2017 - 2018

2 ans

Université Paris Nanterre

Diplôme d’Université Arts, Lettres et Langues

2016 - 2017

2 ans

Universidad Nacional Experimental del Táchira

Engineer

2007 - 2013

5 ans 7 mois

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