Freelancer profile translated to English.
Back to original languageAbout Antoine
I am a Tech Lead Backend & AWS Serverless Architect, specializing in the design, redesign, and industrialization of modern backend platforms. I work with companies that need to build a backend from scratch, strengthen the reliability of an existing one, or durably structure their delivery.
I master the AWS Serverless ecosystem (Lambda, API Gateway, DynamoDB, S3, IAM…), Node.js / TypeScript / NestJS backend development, as well as Infrastructure as Code via Terraform / Terragrunt.
My role: to provide a clear architecture, measurable software quality, and a development environment that allows teams to move fast, without debt and without friction.
I have led several missions as Tech Lead, particularly in the complete construction of backends (architecture, development, IaC, CI/CD, testing, monitoring) and the redesign of existing environments to improve their stability, performance, and scalability. I have also worked on high-volume projects (millions of requests/day), requiring a robust approach and strict engineering standards.
Depending on the needs, I intervene on:
• design or redesign of serverless architectures
• construction of Node.js/TypeScript/NestJS backends
• implementation of Terraform/Terragrunt infrastructures
• creation or improvement of CI/CD, testing, and observability
• improvement of Developer Experience to fully accelerate delivery
• technical leadership of backend teams (3–6 engineers)
I support teams with a pragmatic, results-oriented approach, focused on quality, security, performance, and ease of evolution.
Available for missions in architecture, backend, cloud, and technical leadership.
English
Fluent
French
Native or bilingual
Spanish
Basic
Chinese
Basic
Can work on-site
Paris (up to 50km)
Experience
- GermenLead Backend & Infra (SALVA)BANKING AND INSURANCEAugust 2024 - December 2024 (4 months)Paris, FranceContextRedesign and industrialization of an existing backend in a full AWS serverless environment.Team5 backend engineers + backoffice teams + PM.My role• Technical decisions, mentoring, and delivery structuring.• Backend redesign in AWS serverless (Lambda, API Gateway, DynamoDB).• Implementation of unit tests + Postman E2E tests.• Improvement of CI/CD and Developer Experience.• Contribution to critical backend services.ToolsNode.js, TypeScript, AWS Serverless, Terraform, Postman, GitHub/GitLab CI/CD.Results• Stabilized backend, easier to evolve.• Reduction of regressions through a complete test pipeline.• Reliable CI/CD → faster deployments.• Optimized DX → more efficient team.
- GermenTech Lead Backend (POLYSEME)BANKING AND INSURANCEDecember 2024 - Today (1 year and 8 months)Paris, FranceContextCreation from scratch of the backend and AWS infrastructure for the SALVA/Cagn'Up product.TeamCTO + backend team + mobile team + PM.My role• Architect and develop the backend in NestJS.• Build the complete infrastructure using Terraform/Terragrunt.• Create reusable IaC modules.• Structure PostgreSQL (migrations, schemas).• Define code standards and CI/CD.ToolsNestJS, Node.js, PostgreSQL, AWS, Terraform, Terragrunt, CI/CD.Results• Complete backend delivered from scratch.• Modular and maintainable AWS infrastructure.• Clean development environment → fast onboarding.
- Infodeck.ioPrincipal EngineerINTERNET OF THINGS (IOT)June 2024 - November 2024 (5 months)Bali, IndonesiaContextImprovement of the stability, software quality, and engineering processes of a SaaS platform.TeamBackend team + PM + engineering leadership.My role• Ensure proactive maintenance of critical components.• Handle and resolve priority incidents.• Perform code reviews and mentor developers.• Structure technical documentation and suggest optimizations.• Contribute to long-term technical planning.Tools / EnvironmentsAWS, Node.js, CI/CD, internal monitoring tools, technical documentation.Results• Reduction in the number of critical incidents.• Improvement in code quality through structured code reviews.• Clearer and more aligned engineering processes.
Reviews
Fabien
Emprunter Malin
Reviewed on 6/21/2019
Antoine did several tests even before I entrusted him with the mission, then he made all the adjustments by communicating with the technical services of my partners. Very responsive in his communication, very professional in his work.
J
Jonathan
Beach Cannes Bungalows
Reviewed on 8/5/2019
Recommendations
ED
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Education
- Computer Science Expert DiplomaEpitech2021Master 2 à Epitech Toulouse
- Scientific Baccalaureate with IT specializationJean baptiste debaudre2016
Certifications
- AWS Certified Solution Architect - AssociateAWS2023