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Grégoire TajaGT

Grégoire Taja

Fullstack Web, Mobile & Blockchain Developer

€600/day
8 projects
Paris 17e Arrondissement, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Grégoire

With 8 years of experience as a full-stack freelance developer, followed by 2 years in blockchain as CTO of Pulsar Systems, I now offer my services as a Backend, Web & Mobile full-stack developer to help you achieve your wildest projects.

My skills are numerous and cover a wide range of possibilities, including:

Backend Development:
- Development of your application's backend using Nest.js
- Database management
- Integration with any external service
- Automatic deployment on AWS or other infrastructure

Mobile Development:
- iOS and Android mobile application design with React Native.
- Possibility to add native Swift code for iOS and Java for Android, allowing us to handle all eventualities and offer a quality user experience
- Integration with your existing services
- Automation of the deployment process on the App Store and Play Store using Fastlane

Web Development:
- Responsive website development with React & Next.js
- Integration with your existing services
- Automatic deployment on AWS or other infrastructure

Blockchain Development:
- Solidity smart contracts
- JS & Go algorithms
- Web3 frontend integration

The quality of the product is very important to me, as it is to you, which is why each project is delivered with unit tests. Furthermore, depending on the complexity of your project, it is entirely possible to iterate in stages, allowing you to have a good overview of the project's progress and make any necessary modifications to the desired features. I obviously provide technical support throughout the life of your project.

I can visit you for a few days to establish the specifications, but I carry out the majority of the mission remotely.

Looking forward to working with you.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Pulsar Systems
    CTO & Blockchain Developer
    SOFTWARE PUBLISHING
    June 2020 - December 2022 (2 years and 7 months)
    Paris, France
    As CTO of Pulsar Systems, I participated in the development of numerous products as a manager and developer.

    The most notable was a decentralized exchange (DEX) aggregator, a tool that allows exchanging one crypto for another at the best prices by integrating with over 20 exchanges. This product is coded in Go and includes interaction with the Blockchain with a continuous data flow, graph traversal, and a suite of Smart Contracts to execute the trade in a single transaction on the Ethereum Blockchain.
    Solidity GO Algorithms
  • Modjo
    Fullstack Developer
    SOFTWARE PUBLISHING
    March 2020 - January 2021 (11 months)
    Paris, France
    Modjo is a conversational analytics platform that gives sales teams privileged access to key moments in customer calls. Additionally, the platform's features allow sales representatives to coach each other, significantly improving their performance.

    My role was the development of Modjo's web platform and its backend. I was the right-hand man to the CEO (there were only two developers) where I honed my skills in coding, system architecture, and maintenance. When I left, I played a significant role in training my successor.

    More info on Modjo: https://www.modjo.ai/
    Typescript Node.js NestJs React.js Amazon Web Services
  • Altitude
    BeatBaller Android
    SOFTWARE PUBLISHING
    July 2018 - August 2018 (2 months)
    Cherbourg-en-Cotentin, France
    Basketball game developed for Android for I2BS via Altitude Création.

    The player must bounce a real basketball in rhythm with the music.
    Features:
    - Bounce detection using the microphone
    - Graphic animations
    - Player video during the game
    - Social media sharing
    Trailer: https://www.youtube.com/watch?v=dg1uNyjSdE0
    Java Android

Reviews

5.0

Out of 8 ratings

CedricC

Cedric

CBK INTERACTIVE

Reviewed on 5/3/2019

CedricC

Cedric

CBK INTERACTIVE

Reviewed on 4/26/2019

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Education

  • DUT Physical Measurements
    IUT de Caen
    2018
    Formation en physique, chimie, électronique et informatique.
  • Digital Technology Architect
    Ecole 42
    2020
    Développement informatique avec un focus sur des technologies proche du langage machine tel que le C ou l'assembleur

Certifications

Skill set

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