Freelancer profile translated to English.
Back to original languageAbout Theo
Experienced full-stack developer, I design high-performance applications in Node.js, TypeScript, and Python, with strong expertise in API integration, process automation, data engineering, and visualization (Power BI, Qlik). I work on web, business, or data projects in demanding environments, with rigor and responsiveness. I also have experience in blockchain and technical bot development, which I leverage according to specific needs.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 40km), Rennes (up to 10km), Saint-Brieuc (up to 10km)
Experience
- FreelanceBlockchain & Trading DeveloperSeptember 2023 - January 2024 (4 months)Paris, France• Development of several trading bots: copy trading bot on PancakeSwap (BSC), spot trading bot on Ethereum, and arbitrage bot on Solana• In-depth expertise in Solidity, with a specialization in creating secure and optimized smart contracts• Practical experience in algorithmic trading and arbitrage, with a good command of DeFi protocols and decentralized exchanges (DEX)• Mastery of blockchain technologies: integration of smart contracts on different chains (BSC, Ethereum, Solana), transaction management, and performance optimization• Skills utilized: Solidity, web3.js, TypeScript, Python, Node.js, REST APIs, Webpack, C#, Blockchain
- FiveFortyFull-Stack Engineer & Technical ConsultantApril 2019 - September 2023 (4 years and 5 months)Paris, France• Development, maintenance, and deployment of the Tyndareus application• Design and development of the front-end in TypeScript, with integration of Syncfusion components to optimize user experience• Participation in back-end development in .NET Core, creation and optimization of API interfaces, integration of Orchard Core for content management• Use of ElasticSearch to improve search performance and relevance• Application maintenance: resolution of user issues, bug fixing, functional evolution• Active contribution to deployment and operational environment rollout• Development, maintenance, and deployment of the "Comptes Gérants" application for RELAY• Creation of an application dedicated to RELAY store managers (inventory and flow management) with a fluid and intuitive interface• Continuous evolving maintenance and user technical support• Contribution to successful integration into the store network• Data and Power BI: Creation of Power BI reports for Lagardère, Christofle, GCAesthetics, and Erytech• Cleaning and correction of data from Microsoft D365 to improve its reliability
- FreelanceFreelance Web DeveloperSeptember 2017 - April 2019 (1 year and 7 months)Paris, France• Development of custom showcase websites: design and development of websites for various clients (music group, rotisserie), with particular attention to ergonomics and user experience• Advanced customization of CMS solutions (WordPress, Prestashop, Shopify) according to the specific needs of each project• Optimization of online visibility and user engagement• Redesign of the Grand Rex website (legrandrex.com): complete integration of a new design, respecting a detailed visual identity guide to reinforce brand consistency• Improvement of the front-end architecture for smoother navigation and enhanced user experience• Skills utilized: JavaScript, HTML5, PHP, WordPress, CSS, Prestashop, Shopify, REST APIs, user interface design
Recommendations
Be the first to recommend Theo
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Computer Engineering422019