Freelancer profile translated to English.
Back to original languageAbout Xavier
Freelance fullstack developer specializing in the design of robust, high-performance, and scalable web applications.
I work on technically challenging projects in various sectors: fintech (Lemonway), social networks (Republike), real estate (Offeaze), and B2B SaaS.
I pay particular attention to software architecture (hexagonal, microservices), code quality, testing, automation (CI/CD), and system scalability.
đź’» Stack & Expertise:
- Architecture / Concept: Solid, DDD, TDD, Clean Architecture, Hexagonal Architecture
- Frontend: React, Next.js, TypeScript, TailwindCSS, MUI, i18next
- Backend: Node.js (NestJS, Fastify, Express), TRPC, GraphQL & REST
- Databases: PostgreSQL, MongoDB, Prisma
- Testing & Quality: Jest, Cypress, Storybook
- DevOps / Infra: Docker, Kubernetes (EKS), Terraform, Pulumi, GitLab CI, ArgoCD
- Cloud: AWS, GCP
- Tools / Integrations: Stripe, Algolia, RabbitMQ, Keycloak, Redshift, S3
Methodical, autonomous, and product-oriented, I quickly integrate into teams to deliver quality, well-thought-out, and maintainable solutions.
đź“Ś To learn more:
- Portfolio: xaviernouaille.com
- LinkedIn: Xavier Nouaille
- GitHub: github.com/xaviernouaille
Available to discuss your projects.
French
Native or bilingual
English
Conversational
Can work on-site
Paris (up to 50km)
Experience
- LemonwayFullStack DeveloperBANKING AND INSURANCENovember 2024 - Today (1 year and 7 months)Paris, France- Full Stack Development- Microservices Architecture- Message management and retry with RabbitMQ- Unit/integration tests- Bug resolution- Monitoring- Hexagonal Architecture- Collaboration with DevOps for CI/CD optimization- Technical documentation and ADR writing
- RepublikeFullStack DeveloperSOCIAL NETWORKSSeptember 2023 - September 2024 (1 year)- Backend & Frontend Development- Performance improvements related to the construction of the publication feed- Algolia advanced search system- Stripe Custom integration, subscriptions & products.- Webhook configuration (stripe, mux video)- Database backups (AWS CloudWatch Events, Lambda, S3..)- RedShift cluster, DevOps problem-solving
- DialOnceDevOpsJanuary 2023 - September 2023 (8 months)Paris, France- CI/CD pipeline optimization with GitLab CI.- Kubernetes cluster orchestration (AWS EKS) via ArgoCD.- Deployment management with Helm.- Infrastructure as Code (IaC) with Terraform and Pulumi.- Supervision and monitoring: Use of Prometheus, Loki, and Grafana.- Instance scaling: Scaling management with Keda.- Security: User access administration on the bastion.
Reviews
C
Cyril
Keeze
Reviewed on 1/19/2024
Xavier was very reliable and adapted to our requests, our technology, and our workflow to deliver on time! It's a pleasure to work with him and we won't hesitate to call on him again! Thank you Xavier, Cyril
Veronique
Veronique Bertel
Reviewed on 10/31/2023
Xavier correctly performed the fix; he intervened on a rendering bug on my React platform. He is familiar with the TypeScript environment. I recommend him.
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Education
- Epitech - Master Software Architect, Application DeveloperEPITECH
Certifications
- AWS Certified Cloud PractitionerAWS2025
- AWS Certified Developer - AssociateAWS2025