Walid Karray
Cloud Engineer AI & Serverless at TotalEnergies
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolWalid Karray is a Cloud Engineer and startup CTO-turned-enterprise builder with 16+ years of experience designing serverless, event-driven architectures and turning technical strategy into measurable business outcomes. He co-founded and scaled a ticketing SaaS to serve AFCON 2023 and millions of users, and now applies that product-first mindset to Generative AI work—building multi-agent orchestration, RAG systems, and LLM integrations on AWS Bedrock. Comfortable across Node.js, Python, Terraform and GitHub Actions, he architects multi-tenant platforms with strong CI/CD, security scanning, and testing discipline. At TotalEnergies and SNCF he delivered production-grade, high-throughput systems (10M+ tickets, national AV broadcasts), showing a rare combination of operational rigor and rapid innovation. Based in Paris and AWS Certified, he’s available for freelance missions and thrives on projects that marry deep architecture with clear business value.
9 years of coding experience
10 years of employment as a software developer
Ecole Supérieure Privée d'Ingénierie et de Technologies - ESPRITBTS, Mise en réseau de systèmes informatiques et télécommunications, BTS, Mise en réseau de systèmes informatiques et télécommunications at Institut superieur des etudes technologique de Djerba
Arabic, French, English
Stackoverflow
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Github Skills (93)
azure-functions10
wireguard10
graphql-modules10
vpn10
lambda10
aws-lambda10
serverless-framework10
secrets-manager10
aws10
boilerplate10
oauth10
esbuild9
dynamodb9
serverless-applications9
serverless-plugin9
Programming languages (4)
Github contributions (5)
tux86/nestjs-serverless-boilerplate
Apr 2022 - Aug 2022
Serverless Multi-tenant NestJS backend "Boilerplate" + Fastify + Serverless Framework 3 + Graphql + Modules for AWS Serverless Services (SES,SQS,SecretsManager,Aurora RDS)
Contributions:183 commits, 1 PR, 155 pushes in 3 months
api-gatewaytenantaws-lambdaserverlessrds-aurora
tux86/serverless-todo-clean-architecture-boilerplate
Apr 2023 - Oct 2023
Contributions:134 pushes, 1 branch in 5 months
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