Alessandro Volpicella

Michelberger Digital

• Cost optimization of Lambda functions and cloud infrastructure
• Improved a high-scaling event processing system by incorporating SQS, Lambda, and a multi-tenant architecture
• Integrated a CDK Sandbox to enable deployments for every developer

Tech Stack: AWS (Lambda, SQS, CDK), TypeScript, Node.js

Confidential Client

Fullstack development of a web application for gaining an overview into the construction of electrical distributors.

• Fullstack development of the overall web application using Remix, AWS (SST), Postgres, Cognito
• Led business process consultation for web application design and architecture
• Implemented automated data integration with external ERP systems
• Developed SSO authentication system using AWS Cognito and Microsoft Entra ID

Tech Stack: AWS (Lambda, SQS, Cognito, S3), SST, Remix, PostgreSQL, TypeScript, Microsoft Entra ID

Hashnode

• Led Platform Engineering Team in building scalable AWS solutions
• Architected event-driven system processing 300,000 events daily
• Built GraphQL API handling 100M+ requests/month with edge caching
• Integrated CloudWatch & X-Ray to gain observability across the whole stack
• Developed subscription system with Stripe integration

Tech Stack: AWS (Lambda, CloudWatch, X-Ray, DynamoDB, S3, SES, SQS), MongoDB, GraphQL, TypeScript, Node.js, Stripe API

Capgemini

• Led cloud migration projects from on-premise to AWS
• Developed cloud-native and serverless services
• Built infrastructure using Terraform, CDK, and Amplify
• Led internal AWS community and organized hackathons

Tech Stack: AWS, Terraform, CDK, Amplify, TypeScript, Python

ADS Allgemeine Deutsche Steuerberatung mbH

Development of a web application for consulting clients with their financial situation

• Greenfield project to architect & build a custom customer relationship system for financial planning clients.
• Development of a serverless backend using AWS Lambda, DynamoDB, Cognito, and API Gateway
• Implementing infrastructure as code with AWS Amplify CLI & custom CloudFormation resources
• Built comprehensive user management system with AWS Cognito, including interactive frontend management tools
• Implementation of the web application using React.js including PDF Generator, Multi-Step Wizard Forms, and more
• Set up multi-stage environment (Develop, Release, Master) with full CI/CD

Tech Stack: AWS (Lambda, DynamoDB, Cognito, API Gateway, Amplify, CloudFormation), React.js

BMW Group

Development and deployment of machine learning model for predicting passenger demand in a car-sharing service

• Implementation of an end-to-end machine learning pipeline for predicting passenger demand with cloud-native services
• Machine learning training with AWS Sagemaker and predictions hosted on S3
• Frontend implementation visualizing ML predictions in a leaflet application using React.js, JavaScript, and Redux
• Integration of vehicle sensor data into the internal AWS Data Lake using Kinesis data streams
• Processing data with Lambda functions to store in structured format in DynamoDB

Tech Stack: Python, Java, AWS (DynamoDB, Athena, Lambda, Sagemaker), Docker

CHECK24

Responsible for researching and implementing methods for classifying bank transactions.

• Implementing a machine learning model based on state-of-the-art techniques for classifying bank transactions
• Implementing a REST Endpoint for inferencing the trained machine learning model

Tech Stack: Python, Tensorflow, PyTorch, scikit-learn, Django, Docker, MLFlow

AWS Fundamentals teaches AWS for the real-world. We explain the top 16 services in all major categories and how to use them to actually build things. The focus is on mastering these services and reusing them in a real-world setup.

• 350+ pages covering core AWS services and their configurations
• Infrastructure as Code introduction (Terraform, CloudFormation, Serverless, CDK)
• Visual learning approach with custom infographics for all core services
• Practical examples and real-world best practices

The CloudWatch Book teaches the full CloudWatch suite. We show you how to use CloudWatch to observe your overall AWS Application. From Logs, Metric, up to traces, anomaly detection, and more.

• In-depth coverage of CloudWatch features and best practices
• Accompanying video course (6+ hrs) with practical demonstrations
• GitHub repository with code examples and templates
• Real-world monitoring and alerting strategies

A guide on how to start with AWS Lambda Cost Reduction.

AWS Community Day Romania

Described Hashnode's journey of building a central and public GraphQL API running on cloud-native services (Lambda, API Gateway, Apollo) powering over 100 million requests a month.

GraphQL Radio Podcast

Interviewed by Max Stoiber about Hashnode's architecture, team structure, and scaling GraphQL APIs with Stellate.

Serverless Guru - YouTube

Discussed whether AWS is really suited for startups or if they should start with alternative platforms, exploring the pros and cons of different cloud approaches.

Shopify app to help merchants fight fraud and chargebacks. You can create custom rules to detect fraud and block orders automatically.

Tech Stack: AWS, SST, TypeScript, React, Remix, Supabase, Shopify App

With AWS Fundamentals we run a blog, bi-weekly newsletter, and published two books

Tech Stack: AWS, SST, TypeScript, React, Next.js, GitHub Actions, Cognito & Federated Sign-In, Kit

Analytics solution for GitHub actions. Understand which actions and repositories are most expensive. Exited because lack of time to maintain it.

Tech Stack: AWS, SST, TypeScript, React, Next.js, TailwindCSS, DynamoDB, GitHub API

Subscriber analytics for the newsletter platform Kit (former ConvertKit). Understand your audience and grow your business.

Tech Stack: AWS, SST, TypeScript, React, Next.js, TailwindCSS, DynamoDB