Vitaliy Ryumshyn
DevOps GitOps (temp)
Experience
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.
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.
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.
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.
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.
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.
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.
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.
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.
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Information Technology (17 years), Insurance (4.5 years), Media and Entertainment (4.5 years), Banking and Finance (2.5 years), and Retail (1 year).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (22 years), Product Development (21 years), Quality Assurance (12 years), Project Management (4.5 years), and Operations (0.5 years).
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
Education
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
Profile
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