02.12.2024 aktualisiert

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DevOps engineer, SRE, Cloud Architect, Software Developer, CEO Streon Ltd

Essen, Deutschland
Weltweit
MSc Computing
Essen, Deutschland
Weltweit
MSc Computing

Skills

JavaJavaScriptIBM AixAmazon Web ServicesAmazon Elastic Compute CloudAmazon S3Apache HTTP ServerAtlassian ConfluenceAtlassian JiraAudittrailAuthenticationsBash ShellKundenbeziehungsmanagementUbuntuCentOSClojureCloud ComputingDatenbankenContinuous DeliveryETLData WarehousingIBM DB2Datenbank DesignLinuxDevOpsDynamoEnterprise JavabeansElasticsearchMiddlewarePerlGitHubGradleHibernateIbm Websphere MqIBM NotesLotus SametimeIBM Websphere Application ServerIdentitätsmanagementBildverarbeitungIntellij IDEAJava Database ConnectivityJava Message ServiceJava Persistence APIServletSpring FrameworkJavaserver FacesPythonPostgreSQLApache MavenMessage BrokersMicrosoft Visual StudioOpenShiftOracle DatabasesOracle FinancialsOracle Warehouse BuilderRabbitMQRed Hat Enterprise LinuxAnsiblePrometheusSimple Api for XmlScalaServiceebeneSOAPSolarisUMLVagrantWeb ApplikationenWeb ServicesIBM Websphere PortalExtensible Markup LanguageInformixFront EndTransport Layer SecurityMetrikenAutoscalingElasticacheIbm MqGrafanaSpring BootDeep LearningCachingAWS LambdaSAP BusinessObjectsAWS VPCBackendGitCloudformationKotlinAmazon RdsAngularJSJAX-WSGitlab-CiKubernetesSlackAvroHashicorpToad (Software)Apache KafkaGraphQLSbt (Software)CoreosFunktionale ProgrammierungTeamcityCloudwatchApi-GatewayElastic KibanaRestful ApisTerraformRefactoringAppdynamicsDaten-PipelineServerless ComputingDockerElastic Load BalancingElk StackJenkinsArtifactoryMicroservices
DevOps, AWS, HashiCorp, ELK stack, Prometheus, Grafana, Kubernetes, ElasticSearch, Kibana, Terraform, Docker, Jenkins, various AWS services, RDS, IntelliJ, VisualStudio Code, Jira, Confluence, Ubuntu, Centos, Bash, Make, Python, Go, Java/SpringBoot, microservices, Kotlin, Scala, GraphQL, Apache Kafka, Sbt, Gradle, Quarkus, Apache Avro, Github, ArgoCD, Cloud, ELB, RabbitMQ, Java, VPC, data pipeline, image processing, prometheus-adapter, Fluentd, kube2iam, aws-iam-authenticator, ElastiCache, TeamCity, Python3, Java 11, Spring Boot, Python 3, AuroraDB, PostgreSQL, WAF, OpenShift, Instana APM, Graylog, Spring Boot 2, Ansible, RHEL, CoreOS, Kafka, Artifactory, Java 8, Maven, Slack, Deep Learning, DB, serverless architecture, continuous deployment, AWS Lambda, AWS API Gateway, AWS Dynamo DB, Git, Gitlab CI, autoscaling, Elastic, caching, SSL/TLS, target platform, Oracle, Postgres, EC2, S3, CloudWatch, Cloudformation, AppDynamics APM, Instana, Linux, audit logging, ETL, functional programming, Clojure, Spring, JPA/Hibernate, Codahale Metrics, JavaScript, AngularJS, IBM MQ, WebServices, SOAP, RESTful, Websphere App, Server, Vagrant, Sparx Enterprise Architect, JPA, MagicDraw UML, IBM RAD, Toad, WebSphere MQ, Oracle 11g, Tivoli Directory Server, Refactoring, EJB 2.x, JPA / Hibernate, service layer, Hibernate, Websphere MQ / Message Broker, Magic, UML, identity management, web service, Tivoli Identity Manager, JAX WS, Websphere Application Server, Tivoli Directory Integrator, frontend, JSF, Informix, Solaris, WebSphere 6.1, CRM, Websphere Portal Server, Lotus Domino, Lotus Quickplace, Lotus, Sametime, Data Warehouse, Database design, Perl, Oracle Warehouse Builder, Business Objects, Database, backend, EJB, SAX, XML, MQ Series, DB2, Middleware, web application, servlet, EJBs, JMS, JDBC, AIX, Websphere Studio

Sprachen

DeutschMutterspracheEnglischverhandlungssicherPolnischgut

Projekthistorie

DevOps Engineer / SRE

GLS

Transport und Logistik

>10.000 Mitarbeiter

* Automated provisoning of diverse AWS infrastrucuture
* Implementation of a high availability solution for the GLS hand scanner application
* Setup of HashiCorp Vault
* Improvements of the visibility landscape, including logging (ELK stack), monitoring
(Prometheus/Grafana), and APM
* Continuous improvement of stability and performance of applications and troubleshooting of
production incidents.
* Development of Deployment Pipelines

Technologies employed
Kubernetes (EKS), ElasticSearch, Kibana, Prometheus, AlertManager, Grafana, Ansible, Packer,
Terraform, Docker, Jenkins, various AWS services, e.g. RDS, IntelliJ, VisualStudio Code, Jira,
Confluence, Ubuntu, Centos, Bash, Make, Python, Go, Java/SpringBoot

Backend and DevOps engineer

SRF (Schweizer Radio und Fernsehen)

Medien und Verlage

5000-10.000 Mitarbeiter

* Development of microservices in Kotlin and Scala
* Development of GraphQL interfaces
* Apache Kafka Development
* Administration of Apache Kafka clusters
* Development and operations of AWS infrastructure
* Development of CI/CD pipelines

Technologies employed:
Kubernetes (EKS), Apache Kafka (Strimzi operator), Confluent Schema registry, ElasticSearch,
Kibana, Prometheus, Grafana, Scala, Sbt, Kotlin, Gradle, Quarkus, Apache Avro, Github, ArgoCD

Cloud Architect / DevOps Engineer / Backend Developer - Digital Farming

Xarvio (BASF)

Sonstiges

>10.000 Mitarbeiter

* Setup of Kubernetes clusters in AWS and integration with AWS services (ELB, Route53, IAM, etc.)
* Administration of Confluent Kafka and RabbitMQ
* Occasional development of microservices (Java)
* Containerization of microservices
* Setup of a cluster monitoring solution, based on Prometheus
* Setup of log aggregation (EFK stack)
* VPC design and automated provisioning with terraform
* Secrets and certificate management
* CD pipeline enhancements to accommodate new deployment model
* Design and implementation of a data pipeline for image processing
* AWS lambda development (Python)
* Design and implementation of a multi-region Kubernetes cluster
* Design and implementation of a GitOps based CD pipeline
* Implementation of AWS WAF


Technologies employed:
Kubernetes, Confluent Kafka, RabbitMQ, Helm, KOPS, Docker, Prometheus, AlertManager, metrics-server,
prometheus-adapter, Grafana, ElasticSearch, Fluentd, Kibana, kube2iam, aws-iam-authenticator,
Terraform, ElastiCache, TeamCity, Bash, Python3, Java 11, AWS Step Functions, AWS Batch and various
other AWS services, Spring Boot, Python 3, ArgoCD, AuroraDB, PostgreSQL, WAF and more

DevOps Engineer, Backend Developer, Project Vendo

Deutsche Bahn

Transport und Logistik

>10.000 Mitarbeiter

* Deployment automation to OpenShift with Jenkins and Helm
* Development of cross-cutting application components (e.g. authentication, logging, etc.) in Java
* Development of microservices
* General system architecture consulting
* Performance engineering

Technologies employed:
OpenShift, Jenkins, Helm, Instana APM, Graylog, Java 11, Spring Boot 2, various AWS Services and
more

Software Architect - Fraud probability Calculation

Schufa Holding AG

Banken und Finanzdienstleistungen

1000-5000 Mitarbeiter

at Schufa Holding AG
* Software architecture consulting
* Architecture reviews to ensure adherence to Schufa IT standards
* Design and code reviews
* Deployment automation (CI/CD)

DevOps Engineer and Software Developer

Schufa Holding AG

Banken und Finanzdienstleistungen

1000-5000 Mitarbeiter

* Design and development of complex CD Pipelines
* Kafka cluster installation and administration
* OpenShift administration
* Dockerization of applications
* Infrastructure automation

Technologies employed Jenkins, OpenShift, Docker, Ansible, RHEL, CoreOS, Kafka, Artifactory, Java 8, Python, Maven, Spring
Boot, IntelliJ, Jira, Confluence, Slack, ELK Stack, Prometheus, CloudForms

Cloud Architect, DevOps Engineer, AWS Cloud Pilot

DB Schenker / Logistics

Transport und Logistik

>10.000 Mitarbeiter

* VPC design and implementation
* Implementation of a fully automated installation of a production grade Kubernetes cluster in AWS,
based on Ansible, Packer and Terraform
* Integration of Kubernetes with AWS autoscaling
* Installation of a logging solution for Kubernetes, based on the EFK stack
* Installation of a monitoring solution for Kubernetes, based on Instana
* Kubernetes administration, including definition of various Kubernetes primitives
* Automation of infrastructure provisioning
* Automated configuration of various AWS resources, including RDS, Elastic Search Service and
Elasticache
* Development of deployment pipelines
* Setup of an external caching layer
* Configuration of SSL/TLS
* Migration of multiple existing applications to the target platform (Docker/Kubernetes)
* Involvement in Ops activities according to DevOps principles (you build it, you run it)

Technologies employed:
Kubernetes, AWS Elasticsearch Service / Kibana, RDS (Oracle, Postgres), Elasticache, Lambda, EC2,
VPC, S3, Route53, CloudWatch, IAM, Cloudformation, Fluentd, Ansible, Terraform, Packer,Git, Gitlab
CI, Docker, Java, Spring Boot, IntelliJ, Jira, Confluence, AppDynamics APM, Instana, Linux

Lead Architect - Microservice Architecture POC

DB Schenker

Transport und Logistik

>10.000 Mitarbeiter

* Design and development of microservices based on a serverless architecture
* Development of infrastructure automation processes
* Development of a continuous deployment pipeline
* Coaching of an offshore team in China

Technologies employed:
Java, IntelliJ, AWS Lambda, AWS API Gateway, AWS Dynamo DB, Terraform, Ansible, Git, Gitlab CI,
Jira, Confluence, Slack

Lead Architect, Lead Developer / Webclaims 2 - a global claim handling solution for the Schenker risk management department

DB Schenker

Transport und Logistik

>10.000 Mitarbeiter

* Design of the application architecture
* Selection of technologies
* Design and implementation of critical components, e.g. an audit logging solution
* Design and implementation of system integrations
* Implementation of custom data migrations (ETL) for existing systems to be replaced, applying
functional programming paradigms (in Clojure)

Technologies Employed:
Java, Clojure, Spring, JPA/Hibernate, Codahale Metrics, IntelliJ, Git, JavaScript, AngularJS,
Oracle, IBM MQ, WebServices (SOAP based and RESTful), Websphere App. Server, Vagrant, Docker, Linux

Lead Solution Architect - Next generation eServices

DB Schenker

Transport und Logistik

>10.000 Mitarbeiter

at DB Schenker/ Logistics

* Design of a reference architecture for a global, harmonized/centralized eBusiness platform.
The main goal was to enable support of varying requirements of different countries / regions and
to enable efficient development with highly distributed teams
* Elicitation of architectural requirements
* Collaboration with stakeholders at different levels

Technologies employed: Sparx Enterprise Architect, Confluence, Jira, Spring, AngularJS
(Project did not include implementation, only a POC prototype)

Lead Architect at DB Schenker/ Logistics

DB Schenker

Transport und Logistik

>10.000 Mitarbeiter

* Design of application and integration architecture
* Requirements engineering
* Technical leadership of distributed development team
* Development of application and integration components


Technologies employed:
Java, Spring, JPA, MagicDraw UML, IBM RAD, Toad, Websphere App. Server, WebSphere MQ,
Oracle 11g, Tivoli Directory Server,

Application Architect, Developer - eSchenker

Schenker AG

Transport und Logistik

>10.000 Mitarbeiter

* Extension of existing eBusiness application suite and comprehensive modernization
* Refactoring of existing code base
* Replacement of EJB 2.x persistence layer by JPA / Hibernate
* Redesign of service layer

Technologies employed:
Java, IBM RAD, Hibernate, WAS 7, Websphere MQ / Message Broker, Tivoli Directory Server, Magic Draw
UML

Integration Architect, Developer - Global identity management solution

Schenker AG

Transport und Logistik

>10.000 Mitarbeiter

* Design and implementation of web service layer
* Development of web service design guidelines
* Evaluation of web service security technologies

Technologies employed: Tivoli Identity Manager, Tivoli Directory Server, Java, JAX WS, Websphere Application Server, Tivoli
Directory Integrator, Magic Draw UML

Application Architect, Customer Information System

Schenker AG / Logistics
at Schenker AG / Logistics

* Redesign of application frontend
* Assess impact of frontend migration
* Migration of frontend to JSF


Technologies employed: Java, IBM RAD, JSF, Magic Draw UML, Informix, Solaris, WebSphere 6.1

Application Architect, Developer, MDSD generator

Schenker AG / Logistics
at Schenker AG / Logistics

* Design and implementation of a software generator


Technologies employed: Open Architectureware, Magic Draw UML

Application Architect, Developer / CRM Portal

Schenker AG / Logistics
at Schenker AG / Logistics

* Design of application architecture
* Integration of 3rd party products with portal platform
* Design and implementation of portlets


Technologies employed: Oracle, Websphere Portal Server, Lotus Domino, Lotus Quickplace, Lotus Sametime, IBM RAD, Magic Draw
UML

Senior Developer / Global Data Warehouse

Schenker AG / Logistics
at Schenker AG / Logistics

* Development of ETL processes
* Database design
* Development of reports


Technologies employed: Perl, Oracle Warehouse Builder, Oracle DB, Business Objects

Software Developer

DB Smart; Deutsche Bahn / Transport
at Deutsche Bahn / Transport

* Development of frontend and backend components
* Database design


Technologies employed: Java, EJB, SAX, XML, WebSphere App. Server, MQ Series, DB2

Software Developer

Stinnes AG / Logistics
at Stinnes AG / Logistics

* Development of a web application framework using Java servlet technologies
* Development of middleware components based on EJBs
* Development of a messaging framework based on JMS


Technologies employed: Java, EJB, JMS, XML, JDBC, AIX, MQ Series, Websphere Studio

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