Brief project description: Work on feature extensions and security fixes of XSUAA, the official cloud security solution of SAP.

Work I did: Backend development of new features to be supported by the cloud platform. Integration from microservices of other teams to deliver functionality. Fixing the reported platform issues and delivery to staging and production environments. Intensive work on APIs provided by the platform and security protocols such as OAuth2 and JWT tokens. Active support in API and SQL adjustments to increase resilience and improve performance of the platform. With help of monitor tools, I continuously reported the issues I find on system resilience, performance and scalability. Writing and improving backlog items.

Brief project description: Innovation concept to reduce operation costs for Vending Machines. The concept enables machines to sell products on-line without an Internet connection. Public Key Infrastructure is used to secure communicate between backend and embedded device. End-users would install an application on their smart devices and scan QR code on the Vending Machine to perform the payment. Video of the solution (without cockpit) on https://youtu.be/KP5vGe0zqIk and the cockpit video on https://youtu.be/YvZ8CQOo8Ok on Vending Machines use-case.

Work I did: As development lead, I was taking the entire dev team, both frontend and backend, to reach the project goal. Main responsibility to drive the team to deliver the MVP with correct choices on technology, UX challenges (on embedded device, smartphones, and cockpit), concept implementation, and deployment infrastructure. Complex concept communicated to the team and successful delivery of the MVP.

Brief project description: Client requested consulting on Backend and Frontend, 80% and 20% respectively. The first part of the work was extending software that supports Telecom provider agents in their daily routines, such as contract extensions, upselling or closing new contracts. Second part of the work was related to Telecom Shops, the end-user facing software developed by the Telecom Provider themselves.

Work I did: Lead on feature development, including team organization and supporting on Business Engineering tasks. Development and integration of existing micro services, with respect to corporate IT security compliance for APIs. Frontend tasks were mainly in direction of UX decisions and tight work with Frontend developers. Software testing, such as JUnit, Integration testing and TDD.

Brief project description: Client requested an innovation solution for own Taxi business. The idea of the project was to bring taxi services closer to customers by building a white label solution for businesses and their end-users. The solution was composed from 3 main modules, business facing web app to place orders, Android native app for drivers and React Native end-user app.

Work I did: Frontend development of business facing web application in ReactJS, with focus on Responsive Design to fit all client types. Implementation of backend business logic and APIs, with strong focus on clean code principles and critical business logic tests. Client requirement communication and project lead in all 3 software modules. Organizing quality assurance tests. Performed user acceptance tests with client.

Brief project description: Innovation in user experience to increase sales and improve existing recommendation engines of a running clothing shop. The solution is composed from an end-user webapp, a cockpit for item management and backend component. Short solution presentation video on https://youtu.be/ZF8xKpaSBSk

Work I did: Frontend development for end-users, with focus on UX. Implementation of backend webservices with the proprietary framework and framework extensions to fulfil new requirements. Adoption of the business layer and DAO layer, as well as the DB layer, to be able to store and retrieve data required web services. Old cockpit migration from Angular to Mobile first solution cockpit to ReactJS.

Brief project description: With limited infrastructure in rural areas where farming is at its peaks, collection of the data from farmers and from field agents is required by corporations. Collected information, from the offline operational system, should be available for other mobile applications to be consumed.

Work I did: Developing in a highly proprietary environment to extend an existing solution. Framework and SQLite database extensions to fulfil the requirements of the new client?s business processes. Due to the high data volume, UX optimization was done, as well as the improving the synchronization performance with the SAP HCP. Technical documentation writing.