Thorben Fohlmeister

Senior Freelance Full-Stack Developer

2 Projects with reactjs
Banking Interface

Cloud-Native API

Customer
Raisin Bank AG
Location
Frankfurt
Industry
Finance
Start
September 2020
Duration
3 Years
Position
Backend

Design and development of a scalable cloud API for a B2B banking service provider. The solution covers the entire customer lifecycle and integrates the Mambu core banking system along with numerous external services (KYC, monitoring, payment gateways). The project included regular code reviews and onboarding of new team members. Technical leadership of a growing development team. Co-design of system architecture and scaling strategy. Establishment of development standards and automated quality assurance processes.

Tasks

  • Development of AWS Lambda functions
  • Integration of external systems and partner interfaces
  • Implementation of logging and monitoring solutions
  • Maintenance and extension of API specifications (OpenAPI)
  • Setup and maintenance of infrastructure with AWS CDK and Terraform
  • Conducting code reviews
  • Onboarding of new developers
  • Technical leadership and architectural decisions
  • Establishment of code review standards
  • Agile collaboration with product owners
Datalake Management Console

Web Application

Customer
Startup
Location
Berlin
Industry
Finance / FinTech
Start
March 2020
Duration
6 Months
Position
Fullstack

Development of a management console for controlling and monitoring data flows into a datalake for an AI FinTech company. The solution is based on a serverless AWS architecture and provides a real-time interface via GraphQL. Independent design of the entire serverless architecture on AWS from the ground up.

Tasks

  • Design and setup of AWS components
  • Implementation of the management console with React and Redux
  • Creation of GraphQL schemas and functions with AWS Amplify
  • Integration and testing of data sources (RSS, Twitter, web crawler)
  • Design of the serverless system architecture