SOFTWARE ENGINEER.
RESPONSIVE.CREATIVE.REACTIVE.
Experienced full stack software engineer.
I occasionally take on missions to help people kick off their projects or bring innovative solutions to existing products.
Let's build something together.
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001. Coffee Shop - Responsive e-commerce website
Responsive e-commerce website.
  • NextJS, React, Cloud Firestore (Firebase), Stripe.
  • Netlify, Let's Encrypt.
Coffee Shop - Responsive e-commerce website
Responsive e-commerce website developed with a modern design.
This template can be very easily adapted for any kind of businesses: books, wine, clothes, digital services (SaaS), etc...

Payments are processed by Stripe and users are managed in Cloud Firestore (Firebase).
  • Frontend: React, Typescript.
  • Backend: NextJS, Stripe, Cloud Firestore (Firebase).
  • Infrastructure: Netlify, Let's Encrypt
002. Deutsche Boerse Group Developer Portal and API gateways
Frontend technical lead & Devops
  • React, ReactQuery, Zustand, ES6, FlowType, Typescript
  • OpenID Connect, OAuth2
  • AWS, Kubernetes, Docker, CircleCI, Go, Python
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Digital Business Platform
Co-founded, architected and implemented the Digital Business Platform, Deutsche Boerse Group’s foray into the API economy.

In addition to a modern and user-friendly developer portal, our API Gateway is a cloud-native application featuring first-class authentication services (e.g. 2-way SSL, OAuth2, OpenID Connect), flexible policies (e.g. rate limiting) and reporting.
  • Frontend technical lead: Developer Portal, Authentication (OpenID Connect) & Authorization (OAuth2)
  • Cloud infrastructure: AWS, Kubernetes, Terraform, Docker, CircleCI
  • Backend development: Microservices, GoLang, NodeJS, Python
Team size: 2 engineers.Automated CI/CD pipeline and deployment to AWS EKS.
003. Eat Fresh - Responsive website template in React
Free responsive website template
  • React, ES6, ViteJS, Styled Components
  • Netlify, Let's Encrypt

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Free responsive website template
Responsive website developed with a modern and fresh look.
This template is primarily targeting restaurants but can be very easily adapted for any kind of businesses.
  • Frontend: React, ES6, ViteJS, Styled Components.
  • Infrastructure: Netlify, Let's Encrypt
004. Clearstream Xact Web Portal
Software engineer
  • Frontend tech lead: Java, Javascript
  • Backend: Java, NodeJS
  • Devops: Docker, Linux
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Clearstream Xact Web Portal
Clearstream Xact Web Portal is the connectivity channel (Collateral Management system and Settlement services) for internal operations, customers and partners.
Clearstream Xact Mobile application is an extension of Xact Portal.
  • Frontend technical lead: Javascript, NodeJS, iOS (Swift), Android (Java)
  • Backend development: Java, Shell script
  • Devops: Docker, AWS, Security (OpenAM, x509)
  • Methodology: Agile, SCRUM
005. SpacePix
Mobile & Cloud
  • Swift, Java, React Native
  • AWS, Kubernetes, Docker

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Daily NASA pictures from space
I developed a mobile application for iOS and Android, incl. notifications and in-app purchases for Premium experience.
I developed a backend service to optimize the whole user experience data with data provided by NASA public API.
  • Native: Swift (iOS), Java (Android)
  • Hybrid: React Native
  • Devops: AWS, Docker
  • Backend development: NodeJS, Redis
Sébastien SCHAEFFLER - Made with ❤️ in 2021
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