Senior Java developer

1/2024 – 6/2024

Project Description:
Developed an innovative social platform based on a metaverse concept. This VR platform features customizable virtual apartments owned by users, with design and personalization options. Ownership is secured through NFT tokens, serving as cryptographic certificates of ownership. The platform also includes various interconnected public and commercial spaces.

Responsibilities & Achievements:
• Development of RESTfull APIs
• Code review
• Unit and integration testing
• Writing database migration scripts

Environment: Java 11, Spring Boot (Netflix Stack, Data, Security), microservice architecture, AWS services, Kafka, Docker, Kubernetes, Hibernate, PostgreSQL, Web3j, Liquibase, Swagger, JUnit, Mockito, TestContainers, AssertJ, Maven, Jenkins, SonarQube, MapStruct, Git.

Softwareentwicklung (allg.)

9/2023 – 1/2024

Project Description:
Developed a server-side application for a digital collectible card crypto-game. Utilized Ethereum's NFT token technology and blockchain to provide players with true ownership of their cards. Players can store, sell, or trade these cards through their digital wallets. Ensured that once a collectible card is created and issued, its attributes remain immutable.

Responsibilities & Achievements:
• Development of RESTful APIs
• Refactoring and optimization
• Database development
• Interaction with blockchain

Environment: Java 11, Spring Boot, Microservice architecture, JDBC, PostgreSQL, Liquibase, jUnit, Mockito, TestContainers, Maven, Git, Docker.

Softwareentwicklung (allg.)

5/2022 – 9/2023

Project Description:
Developed a platform enabling users to buy and sell non-fungible tokens (NFTs) created by various artists. NFT tokens facilitate the transfer of unique objects or digital artworks from the real world to the blockchain, allowing for sale, storage, donation, and more.

Responsibilities & Achievements:
• Development of RESTfull APIs
• Improve source code quality
• Unit and integration testing
• Database migration scripts

Environment: Spring Boot, AWS, Docker, Kubernetes, Hibernate, PostgreSQL, Git, JUnit, Mockito, AssertJ.

Softwareentwicklung (allg.)