Rainer S. Email and Phone Number

Software Development:- Microservices using hexagonal Architecture, REST-ServicesDevOps:- Setup from scratch a cloud infrastructure for the company- CD-driven software development based on the repository trunk- Operational services including monitoring of Kubernetes clusters, self-hosted DB and DBaaSMentoring:- Presentations towards C-level, workshops and tech talks towards other software engineers

Backend-Engineer within Operations (Core Tribe, Platform Team) - Maintenance of scalable applications running at AWS- Bugfixing and extending Java- and Kotlin-based microservices- Support for internal customers (eg. Business Operations)

Industry 4.0, IoT-Platform:- REST microservices for condition monitoring.- Deployment into Kubernetes clusters at Azure cloud services (Apigee, Terraform, JNI, Matlab)- REST-Services that collect and analyse data provided by IoT devices (Spring Boot 2, MQTT, PostgreSQL, Liquibase)

• Data analytics using Spark and Flink• Message routing based an Java/Spring, Cloudhopper SMPP, Apache Camel• Real-time billing system using Cassandra, Kafka

• Data warehousing and real-time BI using, Talend ETL or Java, Kafka• Mobile telecommunication signalling systems: SS7 protocol suite, including SIGTRAN and CAMEL

Entwicklung von Kernkomponenten in C und Tcl/Tk. Ausfallsicherheit von HW-Komponenten. Automatisierung von Update-Prozessen. Iu-Interface Implementierung.

Administration von Unix- und DB-Servern. Konzeptionierung der Quellverwaltung. Programmierung in C, C++, Java und Perl.

Projekt- und Systementwicklung in C inkl. ESQL/C unter Linux, SCO-Unix und Windows NT. Kenntnisse in C++, Perl und Smalltalk. System- und Netzwerkadministrator für Zentrale und Geschäftsstellen. DB-Administrator von Informix Online. Konzeptionierung der Firewall. Web-Entwicklung: LAMP, Perl und Java Script. Telefonischer Kundensupport.