Senior Software Engineer

10/2020 – 9/2021

- Utilizing Docker and Kubernetes to containerize the application services, improving scalability and ease of deployment.
- Managing databases with MSSQL, employing SQL transactions to maintain data integrity and performance.
- Overseeing the production support team to conduct thorough testing of the applications based on predefined test cases, ensuring quality and reliability.
- Utilizing Apache Kafka for real-time data processing and inter-service communication.
- Applying XML and JSON for data representation and interchange between different system components.

Technical Leadership and Project Management
- Overseeing the project's technical direction and ensuring alignment with the business goals.
- Coordinating with stakeholders during the requirements engineering phase to gather and analyze the project needs.
- Leading a small team, providing mentorship and coaching, especially in areas related to Angular and Java Spring Boot development.
- Implementing Agile methodologies, particularly Scrum, to manage the project's lifecycle.

Backend Development with Java Spring Boot
- Developing a scalable and high-performance database architecture capable of handling over 2 million entries and transactions daily.
- Implementing change data capture mechanisms to handle more than 1 million transactions per day, likely integrating Spring for Apache Kafka to manage data streams.
- Enhancing Continuous Integration (CI) and Continuous Deployment (CD) pipelines on Microsoft Azure to streamline development and deployment processes.
- Extending the functionality of the existing Spring Boot application to persist and manage user and appliance data efficiently.

Frontend Development with Angular
- Crafting the frontend of an Appointment-Scheduling-Portal using Angular, HTML 5, SASS, NgRx, and RxJS to facilitate caretakers of domestic appliances in scheduling and managing appointments.
- Ensuring the portal is user-friendly, responsive, and accessible across various devices and platforms.
- Development of Angular services for seamless communication with the backend via REST API. Collection, processing and provision of data for visualisation and further processing in the application.

Syntactically Awesome Stylesheets (Sass), Kafka, Microsoft SQL-Server (MS SQL), Java (allg.), Spring, TypeScript, Angular, HTML5, JavaScript Object Notation (JSON), Kubernetes

6/2018 – 9/2020

- Liaising with stakeholders to define and document the requirements for e-banking authentication and document management features.
- Analyzing regulatory and compliance needs specific to e-banking to ensure the platform meets legal standards.
- Implementing core Java backend services using Java 8 and Java 11, within the Spring Boot framework, to create robust authentication processes.
- Developing functionalities for secure storage, retrieval, and display of user-uploaded documents, ensuring data is encrypted and transferred securely in line with banking regulations.
- Creating workflows for custom user flow handling, managing session states, and transactional operations with Spring Data.
- Integrating Spring for Apache Kafka to handle real-time data streaming, which is crucial for processing e-banking transactions and notifications.
- Building secure APIs for document upload and management, ensuring they are scalable to handle high volumes of concurrent bank transactions.
- Implementing features for users to securely upload, store, and access banking documents such as statements, forms, and transaction receipts.
- Designing and implementing custom workflows to manage the lifecycle of user authentication and document handling.
- Enabling new features in the e-banking platform that allow for enhanced user experience and additional banking functions.

Kafka, Docker, Java (allg.), Spring

10/2017 – 9/2019

- Gathering and analyzing requirements to build an authentication app that complies with banking security standards and provides a seamless user experience.
- Collaborating with various stakeholders, including security experts and compliance officers, to ensure the app meets all regulatory requirements.
- Designing the user interface and user experience of the Android app using tools like Sketch.
- Creating wireframes, mockups, and interactive prototypes to visualize the app's design.
- Conducting user testing sessions to gather feedback and iterate on the design to improve usability.
- Implementing the UI/UX designs into a functional Android application using Kotlin and the Android SDK.
- Writing clean, efficient, and maintainable code that adheres to Android development best practices.
- Ensuring compatibility across different Android versions and devices.
- Building a system within the app to authenticate transactions via push notifications, enabling users to approve or deny transactions directly from their devices using firebase.
- Integrating Digipass4Apps to add an extra layer of security for app-based authentication.

Android Entwicklung, Java (allg.), Kotlin

1/2016 – 9/2017

- Working with insurance domain experts to define precise technical specifications.
- Ensuring that the backend system aligns with insurance industry standards and processes.
- Designing and implementing a scalable database architecture capable of managing over 2 million entries and transactions per day, using Java with Spring Boot and Spring Data.
- Crafting backend services and APIs for insurance transaction processing, policy management, and customer data handling.
- Employing XML and JSON for structured data exchange, crucial for integration with various insurance industry databases and services.
- Creating a backend service for push notifications to keep users informed about updates to their insurance policies and other important alerts.
- Integrating this service with the frontend systems and ensuring reliable delivery of notifications.
- Utilizing Docker for containerization to create consistent development, testing, and production environments.
- Overseeing deployment strategies to ensure zero-downtime deployments and continuous integration and delivery
- Ensuring that all backend services comply with stringent security protocols to protect sensitive customer data.
- Implementing comprehensive testing strategies to maintain a high-quality codebase.

Docker, Java (allg.), JavaScript Object Notation (JSON), Spring, XML