You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Kevin PineroKP

Kevin Pinero

Fullstack & AI Software Engineer | React, Node.js,

€400/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

About Kevin

Need to connect your proprietary data to an LLM, or scale a complex web application? With 4 years of experience building scalable systems, I transform your technical concepts into robust, production-ready solutions.

🤖 AI & Data Engineering:

GenAI & Agents: Creation of custom intelligent assistants (RAG pipelines, LLMs via Ollama/Llama 3, Mistral, LangChain) to leverage your data securely.

Python Architecture: Development of high-performance AI APIs and microservices (FastAPI, Pydantic).

💻 Advanced Full Stack Development:

Frontend: Reactive and fluid interfaces with Vue.js and React.

Backend: Scalable and modular architectures (NestJS, Node.js, Python).

IoT & Real-Time Data: Orchestration of complex data streams (MQTT, WebSockets).

✅ The "Enterprise-Grade" Guarantee:
Forged in high-stakes environments (Insurance sector / Critical systems handling 30k+ users), I apply an uncompromising rigor to code cleanliness, maintainability, and automated testing.

Ready to ship your next solution? Let's talk.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • Groupama G2S
    Software Engineer
    SOFTWARE PUBLISHING
    September 2023 - Today (2 years and 9 months)
    Puteaux, France
    Building and scaling the "Elus 3.0" ecosystem, a suite of complex Fullstack applications dedicated to 30,000+ representatives. Operating within a highly regulated, large-scale corporate environment.

    Beyond shipping features, my role involves tackling architectural challenges, managing technical debt, and elevating engineering standards across the team.

    🚀 KEY ACHIEVEMENTS & ENGINEERING:

    Architecture & Refactoring: Spearheaded a major technical refactoring of legacy modules. Designed the migration plan, decoupled massive components into scalable services, and actively reduced technical debt.

    Framework Migration: Led the technical analysis and execution plan for a major framework upgrade (Angular 16 to 18) across multiple applications. Anticipated breaking changes, managed dependencies, and ensured smooth transitions for the engineering team.

    Fullstack Delivery: Built generic, reusable UI components (TypeScript/Angular) for internal libraries managed via CI/CD pipelines, and maintained backend microservices (Java Spring / API Gateways).

    Code Quality & Technical Debt: Designed and led "Clean Code" workshops to elevate engineering standards. Proactively audited heavy legacy components and authored dedicated technical tickets to isolate and execute targeted refactoring.

    🛠️ TECH STACK & ENVIRONMENT:

    TypeScript, Angular, Java Spring, REST APIs, Microservices, GitLab CI/CD, Agile/Scrum.
    JavaScript / TypeScript Node.js Angular
  • Coding Factory by ESIEE-IT
    Python Programming Instructor
    EDUCATION AND E-LEARNING
    September 2024 - Today (1 year and 9 months)
    Paris, France
    Facilitated introductory Python programming workshops for high school students, fostering interest in software engineering and algorithmic thinking.

    Educational Leadership: Designed and led hands-on workshops covering fundamental programming concepts (variables, loops, conditions) and algorithmic logic.

    Project Mentoring: Supervised the end-to-end development of a mini-game project, guiding students through debugging and problem-solving processes.
    Python (Programming Language) Education
  • WebWeDev
    Fullstack Engineer
    SOFTWARE PUBLISHING
    April 2022 - September 2023 (1 year and 5 months)
    Paris, France
    Joined WebWeDev as an early-stage Fullstack Engineer in a fast-paced startup environment. Took extreme ownership across the entire stack, delivering end-to-end features from high-performance backend architectures to complex frontend migrations.

    🚀 KEY ACHIEVEMENTS & ENGINEERING:

    Backend Architecture & Scalability: Architected and built an asynchronous SaaS API (Node.js/Fastify) for mass image processing. Bypassed Node's native single-thread limitations by implementing an 8-Worker Thread architecture orchestrated by RabbitMQ within Docker containers.

    Frontend Migration & Search Engine: Led the complete migration of the "MesAcquisitions" B2B platform from React to Nuxt.js (Vue.js), leveraging Server-Side Rendering (SSR) to drastically improve SEO. Integrated MeiliSearch to build a typo-tolerant, multi-criteria geolocation search engine.

    Data Engineering: Engineered a seamless bidirectional synchronization system between MongoDB and Airtable to automate complex business workflows and secure data integrity.

    DevOps & Leadership: Deployed CI/CD pipelines on Linux servers via SSH. Acted as a technical mentor ("Mini-PO"), teaching Vue.js and JavaScript to junior developers, and designed interactive Figma prototypes for client pre-sales.

    🛠 TECH STACK & ENVIRONMENT:

    Node.js, Fastify, Vue.js, Nuxt.js, RabbitMQ, MeiliSearch, MongoDB, Airtable, Docker, Linux, CI/CD.
    Vue.js RabbitMQ MongoDB Node.js Typescript

Reviews

5,0

Out of 1 rating

D

Danny

particulier

Reviewed on 17/05/2023

Très professionnel, efficace et ponctuel !

Recommendations

Be the first to recommend Kevin

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master’s Degree in Software Engineering
    Epitech
    2026

Skill set

Categories