Vitaliy Ryumshyn

DevOps GitOps (temp)

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Puchheim, Germany

Experience

Jan 2025 - Present
1 year 1 month
Germany

DevOps GitOps (temp)

Signal Iduna

  • Responsible for Openshift/Kubernetes on-prem administration and developer support.
  • Developed URP infrastructure automation with Python, Ansible, Kustomize and ArgoCD, Argo Workflow/Events stack.
  • Wrote smoke and load tests for URP infrastructure utilizing Python, Kustomize and ApplicationSets.
  • Helped to set up and deploy URP infrastructure in Google Cloud, GKE.
  • Set up monitoring for URP and ArgoCD stack with Splunk Cloud.
  • Performed system administration tasks across RedHat Linux, Kubernetes/Openshift, ArgoCD, GitLab, Bitbucket Enterprise, Kafka and MongoDB.
Apr 2021 - Jul 2024
3 years 4 months
Munich, Germany

DevOps Consultant, Solution Architect (temp)

Allianz

  • Designed, implemented and maintained AI/ML pipelines and tools in Allianz’s AWS cloud environment.
  • Designed, deployed and managed an integrated workbench for data scientists including JupyterHub on EKS, MLFlow, Spark on EKS, AWS SageMaker Studio and serverless SageMaker jobs, scaling to support 400 data scientists.
  • Automated onboarding processes for users and teams on AWS, GitHub and the Data Scientist Workbench using IaC principles, reducing onboarding time from days to 4 hours.
  • Created Jenkins pipelines and containerized microservices with Docker, established monitoring, alerting and metrics systems, and configured AWS environments using Helm, Terraform/CloudFormation, Ansible and ArgoCD.
  • Developed multiple template projects using IaC to automate the training and deployment of ML models leveraging SageMaker and Kubernetes.
  • Assisted developers in adapting applications for AWS, performing debugging, bug fixes and feature enhancements in Python, Java and JavaScript; implemented AWS services including EC2, S3, RDS and Lambda.
  • Collaborated with penetration test and security governance teams to implement Allianz and AWS security best practices and industry standards including data privacy and protection regulations.
  • Configured SonarQube deployments for Python, Java and JavaScript to enable automated code analysis in testing pipelines.
  • Set up identity provider management using SAML and OpenID, integrating services like SageMaker with Allianz’s GIAM role management system.
  • Contributed to solution design of new use cases with AWS Textract and Glue, and implemented migrations of use cases, services and cloud environments.
  • Managed system administration and release management tasks across Linux, Kubernetes, GitHub Enterprise, RDS, Kafka, VPC and EC2; coached development teams and provided technical support.
Sep 2020 - Mar 2021
7 months

Cloud Architect and DevOps Engineer (Freelance)

RIoT Secure AB

  • Established and oversaw cloud infrastructure in a private cloud environment using Proxmox and set up DevOps processes.
  • Set up a Proxmox high-availability virtualization system in Hetzner’s data center with Debian Linux VMs and automated provisioning of the entire infrastructure using Ansible.
  • Established an HA Kubernetes cluster on bare metal, containerized all company applications and developed Helm distributions; deployed and tested applications across AWS, GCP and Azure.
  • Set up GitLab, migrated all projects to the platform and implemented CI/CD pipelines for building applications in PHP, Golang, Node.js and C/C++; managed release workflows and staging environments.
Jan 2018 - Aug 2020
2 years 8 months

DevOps and Java Lead (Freelance)

BNP Paribas Consorsfinanz

  • Assisted in establishing a nearshore development team, enhancing software development best practices and implementing a new continuous integration infrastructure.
  • Developed a standardized development environment on RedHat/CentOS Linux VMs with automated provisioning using Ansible, reducing developer onboarding time from days to hours.
  • Led DevOps initiatives to improve build and deployment workflows; introduced Flyway for database migrations, implemented code review processes with Gerrit and quality gates with SonarQube.
  • Configured CI infrastructure including Jenkins pipelines, Nexus, Git/Gerrit and SonarQube servers; provided training and agile coaching for the development team.
  • Led migration of development and IT Ops teams from SVN to Git with no impact on release schedule; migrated a large application (900K lines of code) from Java EE 6 to EE 8, upgraded from JBoss 7.3 and transitioned from Java 8 to Java 11.
  • Created prototypes for migration to AWS Cloud.
Oct 2011 - Dec 2017
6 years 3 months

Technical Lead / System Architect / Engineering Manager

BlackBerry

  • Led integration of the Ubitexx MDM server into BlackBerry Enterprise Server (BES) platform, forming the foundation for BlackBerry Mobile Fusion.
  • Contributed to the design and development of next-generation cross-platform MDM systems BES10 and BES12.
  • Participated in integrating products from Good Technology, WatchDox Ltd and other acquisitions into the BES platform.
  • Collaborated with the infrastructure team to streamline development and testing processes, setting up a CI/CD infrastructure to enhance workflow efficiency.
  • Led two offshore development teams (scaled from 10 to 40+), providing mentorship, team guidance and project ownership.
  • Managed quality gates using SonarQube, established coding standards and provided quality reports to management.
Nov 2008 - Jun 2011
2 years 8 months

Senior Software Developer

Fujitsu EST

  • Contributed to development of the BSS product, a core component of Fujitsu’s SaaS platform using EJB 3.0 and JSF.
  • Designed and developed a new version of Fujitsu ADM 11.0, an application development management system for the Fujitsu cloud environment.
  • Designed and implemented a server-side search layer using Lucene, integrated with a persistence layer for Fujitsu Enabler storage (object database).
  • Developed user interface components using Eclipse RCP/RAP.
  • Refactored and enhanced Fujitsu SCA/QAM 10.1 (source code/quality analysis management system), implementing server-side components and client modules within Eclipse RCP.
  • Defined test strategies and conducted quality assurance for server-side components including module and integration testing.
Jan 2002 - Oct 2008
6 years 10 months

Senior Software Engineer / Architect

Linguatec GmbH

  • Developed the VoicePro speech recognition product in collaboration with Microsoft.
  • Designed and developed a new kernel SDK for PT Translator versions 2006–2008.
  • Developed a new version of PT Intranet using Spring, Velocity, CXF, .NET Engine API and WSE 3.0.
  • Created the Java backend for PTMobile (Shoot and Translate), winning the Mobile Innovation Global Award (2008).
  • Built a COM library based on IBM ViaVoice SDK and SVOX Text-to-Speech SDK for integration with customer systems and Linguatec products.
  • Developed the Java web backend and frontend for the Pashto/Dari project using Spring, Apache OJB, Tapestry and XML/XSLT.
  • Created translation web services, an RMI distributed translation farm and a web presentation layer.
  • Integrated Linguatec eTS with AT&T and IBM Voice Server Text-to-Speech engines.
  • Designed and developed a distributed Java chat server with voice and translation capabilities, winning the European IST IT Prize (2004).
  • Developed Java and .NET mobile client applications for iPAQ devices.
Dec 2000 - Dec 2001
1 year 1 month

Java Developer

Mediantis AG, buecher.de

  • Developed business logic for front-end (e-shop) and back-end (back office) applications using Orbiz digiTrade Language (OSL) and JSP.
  • Integrated third-party libraries for credit card authorization, address verification and bank data validation.
  • Wrote shell and Perl scripts to support development and administrative tasks.
  • Designed Oracle database structure and wrote PL/SQL code to support application functionality.
  • Configured, maintained and developed search functionality using the Verity Java API.
  • Created Mediantis’s presentation CD.
Apr 1996 - Sep 2000
4 years 6 months

Lead Software Developer

Kochmedia GmbH

  • Managed all phases of offshore development projects including specification, design, implementation, documentation and verification.
  • As senior developer and project manager for a small team (3 members), designed and developed multiple software products including Club Manager, Internet Newspaper, Payment Manager, Home Library, Music Editor and Drivers Collection.

Summary

  • ExperiencedCloudArchitect andDevOps Specialist with 25 years in designing and implementing cloud-native solutions andCI/CDpipelines across AWS, Kubernetes, and enterprise environments.
  • Highly organized consultant able to quickly assess and deal with challenges, team player able to energize, motivate team and leading by example to achieve goals
  • Self-motivated, enthusiastic, be able to work in fast-paced start-up environment

Skills

  • Cloud Engineering: Aws Cloud, Gcp, Hetzner Cloud, Hybrid,private Cloud, Proxmox, Ovirt
  • Containerization: Docker/docker Compose/swarm, Kubernetes/openshift On Premise, Aws Eks, Aws Ecs, Gke
  • Devops: Jenkins, Github Actions, Bitbucket, Gitlab-ci, Teamcity, Argocd, Argoworkflow/events, Helm, Ansible, Cloudformation/cdk, Terraform/opentofu, Vault
  • Ci-di: Shell/groovy, Harbor, Aws Ecs, Git/svn/clearcase, Gerrit/nexus/artifactory, Sonarqube, Maven/grandle
  • Monitoring: Splunk, Aws Cloudwatch, Prometheus, Grafana, Influxdb, Telegraf, Dynatrace
  • Mlops: Jupyterhub, Mlflow, Aws Sagemaker (Studio, Emr), Spark On Eks, Aws Glue
  • System Admin: Linux/solaris/freebsd, Squid, Apache, Nginx, Traefik, Istio, Haproxy, Keepalived, Pfsense, Iptables, Wireguard
  • Programming: Java/j2ee, Python, Golang, C/c++, Sql, Js
  • Appser/libs: Hibernate/jpa, Spring Boot, Jsf/tapestry, Eclipse Rcp, Glassfish, Jbosseap/wildfly, Weblogic, Tomcat
  • Databases: Oracle, Mssql, Mysql, Aws Aurora/postgresql, Interbase/firebase

Languages

German
Native
English
Advanced

Education

Sep 1990 - Jun 1995

State Pedagogical University

B.S. in Pedagogy · Physics, Computer Science · Luhansk, Ukraine

Certifications & licenses

AWS Certified Cloud Practitioner

Certified Kubernetes Administrator (CKA)

Certified Kubernetes Application Developer (CKAD)

Sun Certified Programmer for the Java 2 platform

Sun Certified Web Component Developer for the J2EE

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