Freelancer profile translated to English.
Back to original languageAbout Nicolas
Independent consultant and former student of EPFL in Switzerland, with a double degree in engineering and management, I design the architecture of data-oriented cloud solutions and implement them by applying DevOps best practices.
With 17 years of professional experience in total, including 9 years in IT, I notably supported ENGIE Digital for nearly 5 years on data projects with a strong business impact. I work with startups and large groups, on AWS and Azure, using AI to multiply my productivity. This allows me to focus on making strategic technical decisions aligned with business objectives. I work with complete transparency, with clear communication at each stage.
➔ Optimize your data and your infrastructure
Are you managing more and more data, but your infrastructure is no longer keeping up? Too many tools, manual processes, complicated deployments… and in the end, projects that move slowly?
My objective: to help you **regain control with a clear, economical, and scalable cloud-native architecture, designed for your data and business needs**.
To do this, I design complete solutions that allow you to:
- Centralize and automate your data flows,
- Replace manual tasks with reliable and maintained workflows in the cloud,
- Accelerate your deployments thanks to DevOps best practices (CI/CD, Infra-as-Code),
- Gain visibility and performance, without unnecessary complexity, with an architecture ready to scale.
➔ Let's discuss it now!
I offer you an initial 30-minute exchange to better understand your data and business challenges. The idea is to lay the foundations, define a clear roadmap aligned with your objectives, and offer you a costed solution. I can also intervene on your project on an ad hoc basis for coaching, with hourly billing possible.
Find me also on www. nicolasguillaume .com
English
Native or bilingual
French
Native or bilingual
Italian
Conversational
Spanish
Conversational
Can work on-site
Paris (up to 10km)
Experience
- Digit-All Things
On Malt
Coaching for microservices architecture on AWSDIGITAL AND ITMarch 2025 - March 2025Coaching on AWS in the context of a back-end application in microservices architecture (DynamoDB, API Gateway and Lambdas):- Optimization of DynamoDB queries and Lambdas. Offloading storage using S3.- Migration of the infrastructure from one AWS account to another, and creation of multiple environments.- Delegation of DNS records with Route53 with ACM certificates- Cybersecurity: configuration of AWS WAF to protect the API against common attacks (DDoS, XSS, SQL Injection...). Penetration tests (pentests) carried out by an independent firm and passed successfully. - Nicolas Guillaume sasuBlockchain Data EngineerBANKING AND INSURANCEJanuary 2025 - April 2025 (3 months)1/ From blockchain to dashboard: real-time on-chain data pipeline- Streaming Uniswap swap events with Python- Data ingestion into ClickHouse, an ultra-fast OLAP column database (equivalent to Amazon Redshift, Google BigQuery or Azure Synapse), via a Kafka-compatible Azure Event Hub- Real-time visualization in a Grafana dashboard- Infrastructure fully deployed on Azure with Terraform and GitOps best practices2/ Ethereum portfolio analysis CLI tool: analysis of trade performance on Uniswap- Connection to the Etherscan API to retrieve the list of transactions for an Ethereum address- For each ERC-20 token transaction, identifies swaps (Uniswap V2 and V3 protocols) from transaction logs and records trades- Calculation of profit and loss (PnL) of each token held by the address- Developed with TypeScript and Node.js
- Engie DigitalDevOps Engineer | AzureENERGY AND UTILITIESOctober 2019 - June 2024 (4 years and 8 months)Paris, FranceEngie Digital is Engie's software publisher that designs and deploys digital solutions on a Group scale, serving its zero-carbon transition strategy "as a service".DevOps Engineer for the Data Science team within the Darwin project (digital platform to optimize Engie's renewable assets):• Deployment of web apps, APIs and jobs on Kubernetes clusters• Deployment of jobs on Databricks using Terraform• Automation of release of Python/R packages on Artifactory - Data Science packages (30+) are made available to the rest of the Engie group• Development and deployment of an in-house web app to facilitate the management and releases of packages, and to facilitate the deployment of web apps in dev/ppd/prd environmentsStack:• Python (pandas, numpy...)• R (dplyr, tidyr, shiny...) + ShinyProxy• Containerization: Docker• Orchestration: Kubernetes (web apps, cron jobs, parallelization, autoscaling...)• CICD: Jenkins, Azure DevOps Pipeline/Release, Terraform• Code quality: SonarQube (Static code analysis)• Monitoring: SplunkAzure Cloud: Azure Blob Storage, Azure Databricks, Azure DevOps, Azure Kubernetes Service
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Education
- Master - Management of Technology and EntrepreneurshipEcole polytechnique fédérale de Lausanne2008
- Master - Fluid Mechanics - Numerical Simulation - Aerodynamics and AeroacousticsUniversité Pierre et Marie Curie (Paris VI)2006
Certifications
- Cloud Design Patterns | AWS | Azure | GCPUdemy2025
- Azure Databricks and Spark SQL (Python)Udemy2024