A web app to track expenses for small businesses (Independent Project)

• Kafka, Kafka Connect + Debezium (transactional outbox pattern)
• Distributed data management concept/ general architecture
• Software design and implementation (backend, frontend, testsuite)

Relocation and transfer of freelancing business to Switzerland for family reasons

A SolidJS front end as UI for spectrometric water analysis system coupled to a C++ back end through MQTT (mosquitto), running on ARM-based embedded linux system.

• UI protoype in React/ Nx with LitElements (WebComponents) and MQTT based on co-developed Hach Lange platform project
• UI production system in SolidJS, SUID, i18next, Ajv, MQTT.js, C3.js, Typescript
• detailed refinement of requirements with UX team and water anaysis system engineers
• defining and documenting overall system architecture, MQTT message formats, front end architecture and dev setup
• setting up front end system from scratch, implementing domain oriented type system, UI components, app state Management, Mqtt pub/sub services and schema-based message validation in front end
• coaching 2 junior front end developers along the way
• agile team setting (remote work) ? JIRA, git, bitbucket

Complex product configurator web frontend for construction scaffolding systems for shoring towers as part of the PERI Quicksolve © application family

• architectural & implementation design, implementing applying and testing reusable controls and forms for entry of engineering configuration data, supporting 11 product families in one shared library and 4 separate planner apps; including detailed clarification/ refinement of user stories
• specifying, implementing and testing data models for backend API
• agile team setting (remote work)

Complex product configurator web frontend for construction scaffolding systems as part of the PERI Quicksolve © application family

• implementing, testing and applying reusable controls and forms for entry of engineering configuration data, visualizing backend-generated layout results (loads, moments, etc.), including a lib for handling physical quantities with units of Measurement in metric and imperial format
• detailed clarification and refinement of user stories
• specifying, implementing and testing data models for backend API
• agile team setting (remote work) 

Advanced reporting frontend for Affiliate Marketing Service provider

• Angular 11, AG Grid, Ngrx/ rxjs, Bootstrap + Material
• OAuth2/ OIDC, RESTful API, microservice architecture
• Jenkins, wiremock, github, JIRA, swagger, Docker, docker-compose, Cypress, Jasmine, Karma
• User Stories, evaluation of technology options, MVP design
• Definition of microservices architecture including frontend, new and integration of legacy backends
• international agile team setting

• User Stories
• Frontend Architecture
• Design
• international agile team setting

• User Stories
• Frontend Architecture
• Design
• international agile team setting

A microservices-based platform for industrial solutions and systems

(URL on request)

• Domain Analysis, Architectural design, design of REST API, object model and domain events,
• Design, implementation and test automation of frontend and backend

• A webapp to display large-scale epidemiological data and forecasts of the SARS-CoV-2 Pandemic. (URL on request)
• open-source collaborative project setup

Project tracking and planning system ? a web app mapping progress, cost and efforts to a flexible multi-dimensional workpackage breakdown structure 

• Domain Analysis, Architectural design, design of REST API and object model
• Implementation and test automation of frontend and backend system

Solar cell material handling systems, solar panel production systems:

• Detailed specification of functional and non-functional features
• software and system testing for controllers
• HMI, MES-integration
• robotic and measurement equipment

• Customer interviews
• product roadmap
• customer benefit analysis
• specification of software features for tactical airport management dashboard and operations management suite