OpenVMS Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used OpenVMS
Halil Oeztoprak
Last position:
Senior Cloud Operations & DevSecOps Engineer (Azure / Terraform / CI-CD) at KfW Bankengruppe
Regulated environment within a German banking group (approx. 8,500 employees, hybrid cloud strategy).
Responsible for operating, provisioning, and continuously securing business-critical platforms – including a GenAI chat application, a big data/AI platform, and data science workspaces based on Azure Virtual Desktops and VMs. Ownership of Azure DevOps projects for ShaiHulud and React2Shell, as well as BSI alerts – Security Operations improvements across the SDLC.
Deployment responsibility for the GenAI chat application, big data/AI platform (BDAI), and data science workspaces (AVD/VM-based) in the respective landing zones.
Deployment & release management: end-to-end responsibility for deploying portal and service applications across multiple Azure landing zones, including technical approvals, compliance with development team deployment guidelines, and ensuring ITIL-based change and release processes via ServiceNow.
Azure landing zones & network architecture: design, provisioning, and operation of Azure landing zones for 3-tier web applications with enhanced network segmentation, VNet peering, hub-and-spoke architectures, private endpoints, and firewall integration across separate subscriptions and tenants.
Azure DevOps governance & operations: ownership of the Azure DevOps organization, including projects, repositories, and CI/CD pipelines; implementation of governance requirements such as branch policies, approval gates, permission models, and audit-ready operating structures.
Infrastructure as Code (Terraform): design, implementation, and operation of a modular Terraform architecture for standardized cloud infrastructure deployment, including state management, provider versioning, reusability, and policy-as-code approaches.
CI/CD pipeline engineering: design, operation, and optimization of complex YAML-based CI/CD pipelines with multi-stage deployments, template standardization, self-hosted agents, integrated secret management, and automated quality and security checks.
Git migration & platform consolidation: planning and execution of repository and pipeline migration from Azure DevOps to GitLab CI/CD, including automated scripts, full Git history transfer, pipeline porting, and platform consolidation.
Container & platform operations (AKS): operation and security assessment of containerized workloads on Azure Kubernetes Service, centralization of on-premises container registries for ACR.
OpenShift (OCP) security reviews: security assessment of code baselines, build pipelines, and deployment processes for on-premises OpenShift clusters with critical applications, and derivation of specific hardening recommendations.
Shift-left security & DevSecOps transformation: introduction of a company-wide shift-left approach for early security integration in development and deployment processes, enabling developers to perform self-led security checks and sustainably reduce vulnerabilities before production (IDE integrations, pre-commit hooks, local scanners).
Software supply chain security: analysis and mitigation of supply chain risks in NPM- and Yarn-based applications through dependency audits, CI/CD pipeline hardening, token rotation, and restriction of risky build and lifecycle mechanisms.
Frontend & framework security (React / Next.js): security assessment and coordination of critical vulnerability remediation across platform applications and web frameworks, including coordination and complementary technical mitigations with all teams following BSI alerts.
Software composition analysis (SCA): introduction and operation of automated vulnerability scans for container images, pipelines/artifacts, and third-party dependencies, including SBOM exports within CI/CD pipelines.
SAST/DAST integration: design and piloting of static and dynamic application security tests in close collaboration with security architecture and development teams, for continuous improvement of code and runtime security, and establishing operational acceptance tests.
Artifact & registry consolidation: analysis and consolidation of all package and container repositories for service applications and AKS workloads, aiming for a centralized, secured registry strategy with centralized vulnerability scanning and governance.
Dependency-Track & SBOM strategy: advising the compliance board on introducing a central SBOM and vulnerability management platform to increase enterprise-wide dependency transparency and accelerate CVE response capability.
CI/CD pipeline hardening: security analysis and cleanup of the existing pipeline landscape by removing unused pipelines, improving secrets hygiene, implementing least-privilege principles, and isolating build agent environments.
Azure Web Application Firewall (WAF) optimization: analysis and tuning of existing Azure WAF rules (OWASP Top 10 Core Rule Set, DSR/SDC, custom rules) to defend against known vulnerabilities and exploit patterns, including reducing false positives and improving threat detection.
Documentation & stakeholder communication: creating and maintaining technical documentation, runbooks, and architecture overviews in Jira and Confluence, as well as active knowledge transfer between operations, development, security, and compliance stakeholders.
Sebastian Stricker
Last position:
Freelance Consultant External Workforce Procurement at Carl Zeiss AG
- Sourcing contractors, temp labour and direct-search suppliers
- Advisor to procurement and HR on a change project
Stefan Marx
Last position:
Bundesrechtsanwaltskammer
- Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
- Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
- Documentation of test cases, execution steps, and test results.
- Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.
Sebastian Hefczyk
Last position:
Overall Project Manager; Turnaround Manager & Coach at Statutory Health Insurance Fund
- Taking over the troubled project from the internal project management and successful turnaround of project phase 1 (cutover of approx. 1000 servers (VMs)/standard desktops, specialized desktops)
- Responsible project management for the successful phase 1 transition (planning in the shortest possible time followed by implementation (very successful with low ticket volume))
- Stakeholder management – taking over direct (daily before cutover) communication with the client from the Chief Operation Manager in the format of regular meetings in taskforce mode. Rapid rebuilding of the previously lost trust base and restoration of the client relationship for optimal satisfaction
- Taskforce mode to eliminate all existing issues/showstoppers before cutover
- Scope clarification, setup, and scheduling of phase 2 activities (e.g. silo/admin servers)
- Kick-off of phase 2 / handing the project back to the success line for the internal project management/line to handle the remaining defined topics
- Establishing, preparing, and conducting steering committees with V-1 management to align the guardrails
- Moderation of various regular meetings and operational workshops
- Participation in the lessons learned with the client to address dissatisfaction related to the internal project management (before my start! They are extremely satisfied with my work)
- Tools: Atlassian Suite (Confluence/JIRA), MIRO, Sharepoint; MS Office (PowerPoint, Excel, MS Project)
Christian Hunkirchen
Last position:
Developer at Opereon Consulting GmbH
- Developed a shop website
- Integrated an AI language model
- Developed tools for AI-powered webhooks
- Technical tools: REACT.js; Elevenlabs; MCP; n8n; HTTP
Alexander Vasiliev
Last position:
Senior DevOps / Platform Engineer at Kaufland e-commerce / real.digital (ex hitmeister.de)
- Evolved the platform from bare-metal infrastructure with a monolithic PHP application to a hybrid Google Cloud architecture with Go microservices on Kubernetes
- Managed and scaled a production infrastructure with 300+ VMs and dozens of clusters, including MySQL, PostgreSQL, MongoDB, RabbitMQ, Redis and Elasticsearch clusters
- Designed architecture, deployment, monitoring, performance analysis, and upgrades for all platform services using Terraform and Ansible
- Migrated observability systems from ELK and Prometheus to Datadog, managed with Terraform
- Introduced Jenkins CI/CD with SonarQube integration and automated tests to speed up feedback cycles
- Containerized the testing environment and implemented GitLab CI pipelines for Docker image builds, static code analysis, and infrastructure tests
- Performed zero-downtime migrations of MySQL and MongoDB clusters to Google Cloud
- Developed reusable Ansible roles for database clusters and automated data obfuscation for staging environments
- Decomposed monolithic databases and migrated to microservice architectures
- Built tools to detect and optimize slow queries in MySQL and MongoDB
- Conducted online schema migrations with pt-online-schema-change without downtime windows
- Developed internal Go applications for batch queries, GitLab-Jira integration, and MongoDB backup recovery
- Technologies: Debian, Ubuntu, Alpine, Go, Bash, Python, PHP, SQL, GitLab CI, Jenkins, Drone CI, MySQL, MongoDB, PostgreSQL, Redis, Elasticsearch, RabbitMQ, Kafka, Docker, Kubernetes, Nomad, Ansible, Terraform, Grafana, ELK, Prometheus, Datadog, Nagios, Zabbix, Nginx, HAProxy, Vault, Helm, SonarQube, Filebeat, Auditbeat, Google Cloud, AWS
Pierre Gronau
Last position:
Ansible Automation, Windows Third Level Support at DB InfraGO AG
- PRISMA project
- Ansible automation
- Windows third level support for Windows NT, Windows 2000, Windows 2013, Windows 2016, Windows 2019
Saood Yousaf
Last position:
Senior Application Owner at an international energy company
Further development of the application landscape for planning, forecasting and pricing
Communication with internal stakeholders to homogenize the application landscape across all entities
Optimization of vendor management
API and batch processing
Creation of operational concepts
Ensuring compliance with regulations and operational processes
Participation in solution design as well as implementation and further development of new applications and services
ServiceNow
Virtual Machines (Windows / Linux)
M365 Products
Azure DevOps
Web Applications
Fabian Zur Heide
Last position:
Freelance IT Specialist
IT specialist Application Engineering / Software Development since 2012
Discover over 15,000 top freelancers
Statistics of experts using OpenVMS
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
2.8 years
Positions per freelancer
23
Top business areas
Information Technology, Project Management, Operations
Top industries
Information Technology, Manufacturing, Healthcare
Certification focus areas
Information Technology, Operations, Project Management
Bachelor's degree or higher
86%
Master's degree or higher
29%
Certifications per freelancer
5
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Cologne are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Cologne using OpenVMS
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
OpenVMS in practice
OpenVMS is a long-lived operating system used for dependable business and technical workloads. Companies still rely on it for transaction processing, batch jobs, and systems that must stay predictable over time. It is often tied to legacy but critical applications that cannot be replaced quickly.
Common environments
- Alpha, Integrity, and x86-based OpenVMS systems
- VAX heritage applications and porting work
- Digital, Compaq, and HPE OpenVMS estates
- Mixed setups with TCP/IP services and layered tools
These environments need careful maintenance, not quick rewrites.
What specialists deliver
Strong OpenVMS professionals handle system setup, daily operations, and troubleshooting across the stack. They work with DCL, RMS, security settings, backup routines, and system logs. They also support upgrades, device changes, and application compatibility checks.
When companies bring help
- An old system must stay online while internal knowledge is thin
- A migration is needed, but the business cannot stop running
- Performance issues appear in batch, storage, or networking
- Documentation is incomplete and the codebase is sensitive
In Cologne, this often matters for industrial, logistics, and enterprise environments that keep stable core systems in place.
Skills that matter
Good experts know OpenVMS internals, but they also understand the surrounding software. They should be comfortable with scripting, storage, network services, backups, and change control. Clear documentation and careful testing are as important as technical depth.
Good fit for the work
The best specialists are calm with legacy systems and precise under pressure. They read old code, trace issues across layers, and explain risks in plain language. For Cologne teams, remote work often fits analysis and support, while on-site time helps with hardware, operations, and handover.
Frequently asked questions
Curious about OpenVMS? Here are the answers that come up again and again.
OpenVMS is used for systems that must be stable, traceable, and hard to interrupt. It often runs core business applications, transaction processing, batch workloads, and control systems that have been in service for a long time. Many companies keep it because the software around it is still valuable.
OpenVMS is usually chosen for consistency, strong operational control, and its mature system services. Unix and Linux are more common for new builds, but OpenVMS can be the safer choice when a working estate depends on existing code, procedures, and data structures. The right comparison depends on whether the goal is modernization or preservation.
A strong OpenVMS specialist usually knows DCL, RMS, security, backups, and layered products such as TCP/IP services. Scripting, troubleshooting, and migration planning are also important. If the system connects to other platforms, knowledge of file transfer and interface design helps a lot.
For routine maintenance, a specialist who has worked in OpenVMS environments before can usually move quickly. For migrations, performance problems, or fragile legacy applications, you want someone who has seen similar systems and can spot hidden dependencies. The more business-critical the estate, the more important proven practical work becomes.
Yes, much of the OpenVMS work can be done remotely from Cologne, especially analysis, documentation, debugging, and planning. On-site time is useful when there is hardware access, operator handover, or sensitive infrastructure that must be reviewed directly. Many teams use a mix of both.
Those platform names still matter because many OpenVMS estates grew through several hardware generations. A specialist should understand how application behavior, drivers, and system setup can differ across VAX, Alpha, Integrity, and newer x86-based systems. That knowledge is useful during upgrades and compatibility checks.
A good OpenVMS freelancer asks about the exact system version, the application stack, and the operational risks before making changes. Look for clear notes, careful testing, and practical explanations instead of vague promises. The best sign is someone who protects continuity and documents what they touch.
Choose OpenVMS help when the existing system still supports a critical process and replacement would create more risk than benefit. This is common when the code is stable, the business rules are embedded in the system, or the migration path is not yet clear. A specialist can help you decide whether to maintain, modernize, or retire it.
The average hourly rate of freelancers in Cologne, Germany who have used OpenVMS in their recent projects is 101 €, which corresponds to a daily rate of about 809 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used OpenVMS in their recent projects, 86% hold at least a Bachelor's degree and 29% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used OpenVMS in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.8 years.
The most common languages among freelancers in Cologne, Germany who have used OpenVMS in their recent projects are German (100%), English (100%), and French (11%).
The most common industries among freelancers in Cologne, Germany who have used OpenVMS in their recent projects are Information Technology (89%), Manufacturing (67%), and Healthcare (56%).
The most common business areas among freelancers in Cologne, Germany who have used OpenVMS in their recent projects are Information Technology (89%), Project Management (89%), and Operations (78%).
Main locations of FRATCH Experts, who have recently used OpenVMS
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
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