Solution Architect

8/2024 – offen

E-Commerce, Environment

• Impact: Clarity on the path to take
• Keywords: Low-Code, No-Code, COTS, Online Shops, Mobile Apps, Web Apps, ID, Payment, Marketing, Mail, AI, CRM, Chat • Analysis and discussion of the current product and IT architecture
• Requirements analysis, role analysis
• Strategic analysis/product success analysis
• Technology-independent solution architecture design
• Technology research– state of the art
• Technology-dependent solution architecture design with alternatives, cost estimations, and recommendations

Solution Architektur

5/2019 – 3/2023

Space sector, Software-as-a-Service

2020-2023: Cloud Software-as-a-Service platform
• Impact: Convinced angel investors, acquired first paying customers, successful MVP, convinced seed investors.
• Deliberate decision against microservices and serverless
• Keywords: Kubernetes, Docker, OpenTelekomCloud (OTC, German AWS), JSON-based REST API, Node.js/Express.js, Data Stream Management (Apache Flink), Java, JNI, Fortran modules from scientists, Python, MongoDB in cluster configuration, OpenAPI/Swagger, JSON Schema, Angular (later: React), YAML, Helm, GitLab, GitHub, CI/CT/CD
• Analysis and discussion of existing system, requirements, roles, strategy, and product success
• Technology-independent design (components, communication, cloud)
• Technology research and cost predictions
• Technology-dependent design
• Goals: Limited number of frameworks to reduce complexity and enable use by scientists. Data stream management and operator graph for the same reasons as the first version. Graphical frontend for presentation purposes with an API-first approach. Large database, support for a high number of users.
• Architecture patterns: Modular monolith, layered architecture, blackboard, publish-subscribe, pipes&filters. Others: Observer, Adapter, Builder, Factory.
• Comprehensive documentation using UML, Wiki, docs
• Design and implementation of prototype and framework, including testing

First product 2019: Online Software-as-a-Service solution
• Impact: Gained demo users, convinced technical partners, team on track
• Keywords: VPS, JSON-based REST API, Data Stream Management, C++, STREAM, Fortran modules from scientists, PostgreSQL
• Analysis and discussion of existing system, requirements, roles, strategy, and product success
• Design
• Goals: High data throughput, high performance, high processing flexibility through modules in an operator graph, which can be adapted using CQL (Continuous Query Language, inspired by SQL)
• Architecture patterns: Pipes&Filters. Others: Singleton, Adapter
• Design and implementation of prototype and framework, including testing
• Introduction of SCRUM and its moderation in the early stages
• Introduction of software development process (git flow, GitLab)

Continuous Delivery, DevOps, Fortran, Java (allg.), Mongodb, Projektleitung / Teamleitung (IT), Python, Saas, Scrum, Software Architecture, Solution Architektur