Plexify GmbH

Hohenbrunn, Germany

Experience

Aug 2024 - Present

1 year

Full-stack development of tools for semi-automated configuration and management of technical systems for monitoring rail traffic.
Integration of signal streams, customer-specific protocols, and related meta-frameworks.
Technologies: Golang, Ember.js, JavaScript, REST microservices, SQLite, automated build, test, and deployment pipelines

Jun 2024 - Aug 2024

3 months

Expanded an MVP of a web application in the GwG compliance area.
Developed an administration dashboard for the application.
Technologies: Golang, Cobra, Viper, CLI apps, REST microservices, Retool, automated build, test, and deployment pipelines (GitHub), containerization (Kubernetes, Docker)

Sep 2023 - Present

1 year 11 months

Ottobrunn, Germany

Enhanced the company website.
Improved the in-house email service.
Revamped and refactored backend services for a blockchain-based distributed data storage.
Designed and implemented backend services for an aggregating project management tool integrating various project management, version control, and time-tracking tools.
Technologies: TypeScript, Next.js, Golang, Gin, Java, Kotlin, Spring Boot, Spring Data, Spring Security, OAuth2, OIDC, Keycloak, build tools (Gradle), MongoDB (NoSQL), Google Cloud Platform, messaging (Kafka, ActiveMQ), REST microservices, software development and architecture, single-page web applications, automated build, test, and deployment pipelines (GitHub), containerization (Kubernetes, Docker), unit and integration testing, operations and monitoring

Mar 2021 - Aug 2023

2 years 6 months

Developed data pipelines to process complex data sets within a web-based enterprise product for publishing.
Led system migration for new customer acquisition, focusing on database migration and consolidation.
Enhanced and maintained a module for license and royalty management, rights management, and automated financial accounting, focusing on database and interface development.
Continued development and maintenance of various microservices in an in-house system to support and automate agile workflows.
Operated, maintained, and monitored software systems.
Technologies: Java, Kotlin, Spring Boot, Hibernate, Velocity, Lucene, build tools (Gradle, Maven), monolithic services, REST API, RPC, REST microservices, software development and architecture, AWS, TypeScript, React, single-page web applications, containerization (Docker), PostgreSQL, messaging (RabbitMQ), automated build, test, and deployment pipelines (TeamCity), unit and integration testing, operations and monitoring, release management, go-live planning and execution

Feb 2021 - Mar 2022

1 year 2 months

Continued development and maintenance of a web application in accounting.
Advised on development strategy as well as operation, maintenance, and monitoring of the web application.
Technologies: legacy systems, PHP, Oracle DB, JavaScript, on-premise hosting, release management, consulting, system analysis

Aug 2018 - Feb 2021

2 years 7 months

Full-stack development within a web-based enterprise product for publishing and development and maintenance of various microservices in an in-house system to support and automate agile workflows.
Supported system migrations with a focus on data migrations and import interfaces.
Developed and integrated REST interfaces for data exchange with external systems.
Operated, maintained, and monitored software systems.
Technologies: Java, Kotlin, Spring Boot, Hibernate, Velocity, Lucene, build tools (Gradle, Maven), monolithic services, REST API, RPC, REST microservices, software development and architecture, AWS, TypeScript, React, single-page web applications, containerization (Docker), PostgreSQL, messaging (RabbitMQ), automated build, test, and deployment pipelines (TeamCity), unit and integration testing, operations and monitoring, release management