About Walid
Turning innovative ideas into high-performance cloud products is what I do. With over 15 years of experience, stemming from the early days of coding (Amstrad CPC!), I serve startups and Fortune 500s as a Freelance Full-Stack Cloud Engineer.
I specialize in designing scalable AWS architectures, optimizing backend performance (Node.js, Python), and implementing efficient DevOps workflows (Terraform, GitHub Actions, CI/CD automation). My focus is on delivering technical solutions that not only work flawlessly but also significantly accelerate development cycles and reduce operational overhead through modern cloud patterns, including serverless.
My approach goes beyond coding – it's about building resilient, scalable products engineered for your business's future growth.
Core Expertise:
🔹 AWS Cloud Architecture & Design
🔹 Terraform for Infrastructure as Code (IaC)
🔹 Backend Development (Node.js, Python)
🔹 CI/CD Pipelines & DevOps
🔹 Full Product Development Lifecycle
💬 Need a skilled expert to architect, build, or optimize your cloud product? Let's discuss how my experience can deliver clean, fast, and cloud-ready results for your next project. Get in touch!
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 20km)
Experience
- TotalEnergiesAWS Architect | Developer | DevOpsNovember 2023 - Today (2 years and 7 months)Île-de-France, FranceArchitected and delivered a serverless‑first, enterprise no‑code workflow automation solution on AWS, enabling business stakeholders to design, deploy, and manage sophisticated processes without writing a single line of code. Key Achievements:▪ Designed a scalable architecture with clean separation between backend APIs and the workflow execution engine▪ Secured architecture approval through comprehensive security reviews and technical documentation▪ Reduced cloud costs by 23% through targeted FinOps practices and resource optimization▪ Implemented a workflow engine capable of integrating with AWS services, enterprise systems (like SAP), and internal APIs▪ Established end-to-end IaC deployment using Terraform with multiple environment support▪ Created an automated CI/CD pipeline Technical Stack:▪ Cloud Infrastructure: AWS Lambda, API Gateway, EventBridge, SQS, EC2, KMS, Secrets Manager, RDS, Timestream,....▪ Backend APIs: Node.js 18, TypeScript, framework‑agnostic Clean Architecture▪ Workflow Engine: Python 3.9▪ DevOps & Automation: Terraform, GitHub Actions, Docker, Taskfile, Shell scripting▪ Security: Checkmarx, Semgrep, GitGuardian▪ Monitoring: AWS CloudWatch, Grafana
- SNCF Connect & TechAWS Serverless EngineerSeptember 2022 - November 2023 (1 year and 2 months)Paris, FranceIn collaboration with a dedicated team, I contributed to build of the new generation of audio-visual information broadcasting system for travelers at train stations for SNCF (LIVE Program). Developed a modern solution based on a distributed lambdas architecture. This platform, serving over 21 million users, is deployed across all SNCF stations in France.▪ Participated in the development of many components▪ Writing of technical design studies▪ Contributed to meeting the acceptance criteria.▪ Implementation and management of infrastructures using Terraform▪ Strong testing policy (Unit tests, integration tests, automated tests, and load tests)▪ Participation in agile ceremonies (TypeScript, Node.js, Websocket, Jest, Python/Robot Framework, Docker, DataDog, Octoperf, Squash, Gitlab, Jenkins, AWS SAM, Terraform, méthode Scrum, Architecture Hexagonale, Microservices) AWS (Lambda, Step Functions, S3, SQS, Amazon MQ, Amazon Polly, Amazon Kinesis Data Firehose, Glue, Athena, EventBridge, API Gateway, Dynamodb, Aurora PostgreSQL, Cloudwatch…)
- MAXEON SOLAR TECHNOLOGIESAWS ArchitectJuly 2022 - September 2022 (2 months)During a two-month consultancy, I partnered with Singapore-based Maxeon/ SunPower, an industry pioneer in solar technology. I worked directly with their multinational engineering teams to architect and implement AWS Serverless solutions that aligned with their global operations and technical objectives.▪ Transition to a "Serverless first" architecture on AWS.▪ Analysis and validation of functional requirements, accompanied by feasibility assessments.▪ Collaborative work with teams spread across 5 countries. Okta (SSO), Typescript/Node.js, ·Salesforces, AlphaESS, Net2Grid. AWS (Serverless, Dynamodb, Aurora Postgresql ,ApiGateway, S3, Cloudfront)
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Certifications
- AWS Certified Solutions Architect - Associate SAA-C02Amazon