Freelancer profile translated to English.
Back to original languageAbout Clément
Graduated in computer engineering, I am a freelance Back-End developer, passionate about creating and optimizing scalable and high-performance technological solutions. With over 3 years of experience, I have honed my skills in Back-End development and DevOps practices, specializing in building robust systems and automated deployment.
- **Backend Development**: Expertise in designing and developing microservices architectures in Node.js and TypeScript, with integration of databases like PostgreSQL and MongoDB to ensure scalability and efficiency.
- **Event-Driven Architecture**: Using Kafka for real-time and event-based services, ensuring data consistency and responsiveness across distributed systems.
- **Cloud & DevOps**: Mastery of deploying applications on AWS via Docker and Kubernetes for containerization and scaling, with CI/CD pipelines managed through GitHub Actions to automate testing and deployments.
- **API Development**: Creating and maintaining GraphQL APIs to optimize data queries and improve performance, ensuring smooth communication between microservices.
- **Continuous Integration & Monitoring**: Implementing continuous integration pipelines, automated testing, and proactive monitoring with tools like Splunk and Dynatrace, enabling rapid detection and efficient problem resolution.
French
Native or bilingual
English
Fluent
Spanish
Conversational
Remote only
Primarily works remotely
Experience
- PBO ConseilSoftware DeveloperCONSULTING AND AUDITSSeptember 2023 - July 2024 (10 months)- Design and development of a free unemployment benefits calculation simulator (ARE) for employees and self-employed individuals in France, initially integrated into PBO CONSEIL's Wordpress website. This simulator allows users to estimate their unemployment benefit entitlements based on their specific situation.- Evolution towards creating a complete software in Typescript Nest.js / Vue 3, sold as a premium subscription to PBO CONSEIL clients, including renowned companies such as Disney, Atos, as well as financial institutions specializing in supporting self-employed workers.- Development of a user interface with Vue.js by creating reusable components and state management (state-management: Pinia) to ensure application consistency and efficiency.- Use of the Nest.js framework for the backend with a modular MVC and SOLID architecture, facilitating maintainability and scalability.- Optimization of SQL queries and use of caches to improve performance and reduce database load (AWS RDS PostgreSQL)- Integration of AWS services for deployment and management of cloud services, including EC2 for hosting, S3 for secure data storage, RDS for relational database management, and Lambda (Node.js) for serverless functions.- Close collaboration with legal and financial teams to ensure regulatory compliance and accuracy of calculations in the ARE simulator, while meeting specific client requirements and high security standards.
- ACCORBack-End DeveloperHOSPITALITYJuly 2022 - August 2023 (1 year and 1 month)Paris, France- Key member of a 6-person agile team at Accor, contributing to the technological transition of the main website.- Design and development of serverless APIs in Node.js on Apigee, integrating AWS services such as Lambda for serverless functions, CloudFront for content delivery, and S3 for data storage. I developed these APIs from the backend in Java to lighten the existing system and optimize performance through a transition to the cloud and a microservices architecture.- Microservices-based architecture to ensure scalability and flexibility of backend systems.- Implementation of a new deployment process for serverless APIs on AWS using Terraform for infrastructure as code and Gitlab for continuous integration and deployment (CI/CD).- Integration of monitoring with Splunk and Dynatrace to ensure proactive performance monitoring, anomaly detection, and rapid incident resolution.- Close collaboration with frontend and backend development teams, as well as solution architects and operational teams to ensure technical and operational alignment with company objectives.
- FlashbackMobile Back-End DeveloperENTERTAINMENT AND LEISUREFebruary 2022 - July 2022 (5 months)Paris, France- Design and development of a mobile application within a team of 2 developers, covering the entire project lifecycle.- In-depth functional analysis and writing of the application's functional specifications, in collaboration with stakeholders to define needs and specifications.- Choice of technologies and application architecture, opting for a serverless approach with Node.js on Firebase for the backend, leveraging Google Cloud Platform (GCP) cloud services to ensure scalability and reliability.- Setup of development and production environments, ensuring efficient management of versions and configurations.- Integration of application monitoring with GCP cloud tools, ensuring proactive performance monitoring and rapid incident resolution.- Deployment on the iOS environment using Xcode and AppStoreConnect, following Apple's standards and requirements to ensure an optimal user experience.- Organization and management of test campaigns via TestFlight with AppStoreConnect, allowing for relevant user feedback for continuous application improvement.
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Education
- EngineerESTIA2021Ingénieur informatique
- Master of ScienceCranfield, UK2021Ingénieur CFD en aérospatial