Kyota Lannelongue

- Designed and built end-to-end AI-powered article generation systems, enabling automated news content creation and improving editorial throughput and publishing speed. - Developed scalable backend services using Node.js, integrating AI models, content pipelines, and RESTful APIs to support high-volume article generation and distribution. - Implemented responsive, user-friendly frontend applications in React, providing editorial teams with intuitive tools for content review, editing, publishing and performance visualisation. - Established and maintained CI/CD pipelines, automating builds, testing, and deployments to ensure reliable, fast, and repeatable releases across environments. - Optimized application performance, improved system reliability, and enforced best practices in code quality, testing, and security.

- Developed and optimized scalable backend systems and RESTful APIs using Node.js and TypeScript, integrating with web and mobile platforms. - Architected serverless solutions using AWS tools like Lambda, API Gateway, DynamoDB, and EventBridge to ensure high availability, performance, and scalability. - Designed and managed event-driven architectures with AWS SQS, SNS, and EventBridge, improving service communication and real-time processing capabilities. - Integrated third-party APIs (e.g., payment gateways with Stripe, identity verification services with Ubble) to extend platform functionality and enhance user experience. - Configured and maintained secure storage systems with AWS S3, including lifecycle management, versioning, and integration with other services. - Enhanced system monitoring and debugging with AWS CloudWatch, implementing custom metrics, alarms, and log analysis for performance optimization. - Streamlined CI/CD workflows by utilizing GitLab CI, automating build, test, and deployment pipelines for efficient and reliable software releases.

Backend NodeJS developer in a startup specialised in developing an all-in-one equity and stockholder management platform. - Designed and developed POC app from scratch by analysing the market's needs. - Boosted website performance and user experience by implementing redis cache, reducing app loading time by more than 45%. - Improved app consistency and reliability by implementing unit and integration tests with Jest and configuring continuous integration rules on code coverage and testing. - Shortened API response time by replacing the ORM by a SQL query builder, optimising database calls by 20 fold. - Enriched and updated database structure and database content by writing schema migrations. - Implemented data exportation by automating the generation of user friendly Excel sheets from platform's data. - Reduced data overfetching and underfetching from client app by implementing a GraphQL API. - Improved developer experience by creating a better testing framework with production-like dummy data seed and specific scenario data seed generation. - Organised tech team work by designing Kanban boards.

I work with individual customers or small companies and organisation in order to bring them a web solution such as the development of websites using Wordpress. As a Full-Stack developper, I develop those solutions by managing the Back-End using technologies such as PHP, Node.JS and .NET, and create the web design using SASS, photoshop and Pixate.

French startup specialising in developing high-tech solutions in web, design, datascience and machine learning. - Developed the front-end for Predictor, an IA based prediction app. - Helped implement new machine learning algorithms into the Perdictor server.

Worked at F5, a Brazilian company located at São Paulo specialized in offering web solutions to clients all around the world. I integrated the company as a Full-stack web developer and developped API's in Node.JS and in .NET using the REST architecture. I also developped client side services using HTML, CSS and AngularJS. - Developed client-side applications with AngularJs and servers in NodeJS. - Helped boost maintainability and scalability through refactoring and harmonising code.