
Public Key Infrastructure Experts in Frankfurt
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Meet FRATCH Experts in Frankfurt, who have recently used Public Key Infrastructure
Werner K.
Last position:
Test Coordinator, Designer and Engineer at IBM
- Testing the SekIDP and related components
- Test design, execution and automation, microservices, GitHub Enterprise, Eclipse, Katalon Test Platform, API Testing, Confluence 8, JIRA/Xray, Draw.io, Swagger/OpenAPI, Postman, Docker, Kubernetes, Podman, PuTTY, E-Health, Telematik, Gematik standards, EPA, E-Rezept, sektoraler IDP, encryption, XaDES, PaDES, DICOM, HL7, FHIR, IHE, ICD, SSO, SAML/Shibboleth, OAuth, smartcards, JWT, two factor authentication Android and iOS, Wireshark, BrowserStack, Cypress, gRPC, REST, SOAP, WS-Security, Linux Shell, PowerShell, SSH/SSL, Java, Kotlin, Cordova, Gradle, Groovy, Python, TypeScript
Jörn B.
Last position:
Project Management and PMO at TANKKARTEN | PAYMENT
- Close collaboration with development teams to ensure alignment with project goals
- Assessment of in-scope assets, requirements definition and support of the public tender process up to vendor selection
- Creation and maintenance of UML sequence diagrams to document system interactions
- Intensive use of Agile/Scrum methodology and the Spotify model
- Development and implementation of cutover and rehearsal plans together with the application managers
Tan P.
Last position:
DevOps Engineer in the DevOps Team at Rise-World
- Implementation of specified DevOps solutions to automate infrastructure (Terraform, Bicep, CloudFormation, Ansible) on-premises datacenter (Ovirt, Proxmox, Ceph Cluster, MinIO) and private cloud.
- Administration, configuration and implementation of CI/CD DevOps pipelines (GitLab, GitFlow) to support development process (Artifactory, Prometheus, Istio, service mesh, Helm Chart, OpenShift (Red Hat Enterprise) / Kubernetes cluster), Red Hat Satellite.
- Administration, setup, monitoring and patching of Linux infrastructure based on Red Hat Enterprise for Dev, Test and QA.
- Use of Scrum and Kanban methods.
- Administration, configuration and implementation of security standards for deploying on Dev, Test, QA and Prod stages of the new ePA applications.
- Development of new plugins and add-ons needed on current infrastructure.
- Database support.
- Data analytics support (Python, Spark, Pandas, Power BI, Splunk Enterprise).
- Implementation of best practices for DevSecOps and BizDevOps using GitOps (ArgoCD), Streamlit framework, Semaphore Ansible UI.
- Configuration and testing of iperf, uperf, sysbench using benchmark-operator for external source data and IoT/MDM devices, creating reports via ELK / OpenSearch.
- Building a new Databricks platform to collect and analyze big data from different sources and IoT devices into Hadoop framework (Python, Pandas, PySpark, Power BI, Apache Airflow).
- Building backend data aggregation and processing to automate configuration deployment between different OpenShift clusters and big data framework (Python, Pandas, PySpark, Apache Spark, PostgreSQL, Django 2, Ansible Automation, Jira JSM).
- Building a new ML pipeline platform using Kubeflow, TensorFlow, KServe.
- Data extraction, transformation and loading from different data sources including structured and unstructured data to analytic DWH / big data cluster using Python, Pandas, Polars, Power BI, Django backend and PostgreSQL.
- Setup of new DevOps Test and QA HashiCorp Vault cluster for PKI and IAM.
- Configuration and testing of automated patching based on CVSS score, SIEM-integrated CVEs.
- Use of Nexpose and InsightVM to scan vulnerability events in network, host, container and application.
- Design and implementation of secure and scalable AWS architectures including VPC, EC2, S3, RDS and Route53 and similar setups on Azure and GCP.
- Automated system provisioning and deployment using CloudFormation templates.
- Configuration of IAM roles, policies and permissions to ensure secure access control.
- Patch management, backup automation and disaster recovery setup on AWS infrastructure.
- Monitoring and optimization of system performance using AWS CloudWatch and AWS Trusted Advisor.
- Support of VMware services (vSphere, Aria, Horizon) and the virtual desktop environment.
- Development and maintenance of CI/CD pipelines using Jenkins, GitLab CI/CD and AWS CodePipeline with interface to Nutanix.
- Configuration of AWS CloudWatch to monitor application performance and system events.
- Planning and execution of migration of on-premises applications to AWS cloud platforms.
- Deployment of containerized applications using Docker and Kubernetes in AWS environments.
- Deployment of internal software packages between availability zones using AWS CodeDeploy.
- Building and deploying ML models using Scikit-learn, XGBoost and Spark MLlib including hyperparameter tuning, model evaluation and production deployment.
Rashid I.
Last position:
Java Developer at IT company
- Data transformations
- IT company with more than 100 employees
- Software production
- Data augmentation and normalization, image transformation, format conversion, merging data from multiple sources
- Toolset: Java, Helm, Kubernetes, Kafka, OpenCV, IntelliJ IDEA, Gradle, Git, Docker, Containers, Scrum
Stefan F.
Last position:
Project Management – Telecommunications at 1&1 Versatel
- Set of concurrent projects (BSS/OSS related)
Jörg-Ulrich H.
Last position:
Data flows for health insurance providers
- Further development and creation of data flows for health insurance providers
- Data management across various storage systems (DB2, MSSQL, PostgreSQL, S3, custom APIs, ...)
- Documentation and training
- Planning and deployment of NiFi 2.x (major upgrade)
- Integrating Grafana for visualization, monitoring, and alerting
- Extensive use of the NiFi API to continuously monitor the system and its components
Steffen M.
Last position:
Principal Consulting Partner - freelancing at microfin
Discover over 15,000 top freelancers
Statistics of experts using Public Key Infrastructure
Aggregated from the professional profiles of matched freelancers.
Experience
31 years (Germany: 23 years)

Position duration
0.9 years (Germany: 1.7 years)

Positions per freelancer
26 (Germany: 18)

Top business areas
Information Technology, Product Development, Project Management

Top industries
Banking and Finance, Information Technology, Insurance

Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
67% (Germany: 80%)
Master's degree or higher
50% (Germany: 54%)
Doctorate
17% (Germany: 11%)

Certifications per freelancer
5

Most common languages
German, English, Spanish

Speak two or more languages
100% (Germany: 99%)
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Frankfurt 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 Frankfurt using Public Key Infrastructure
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Public Key Infrastructure experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Banking and Finance (100%)
- Information Technology (100%)
- Insurance (86%)
- Transportation (86%)
- Telecommunication (86%)
- Automotive (71%)
- Energy (43%)
- Healthcare (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core role
Public Key Infrastructure, or PKI, is the trust layer behind digital certificates, keys, and signed identities. It helps systems prove who they are before they exchange data. Companies use it to secure websites, internal apps, email, devices, and connected services.
What specialists deliver
- Certificate authority setup and lifecycle design
- TLS, S/MIME, and code-signing policies
- Certificate issuance, renewal, revocation, and rotation
- OCSP and CRL validation paths
- Hardware security module integration and key protection
Strong professionals focus on trust chains, expiry control, and safe automation. They also document how certificates move through environments so teams can operate without outages.
Common tooling
PKI work often spans Microsoft AD CS, OpenSSL, HashiCorp Vault, Venafi, EJBCA, and HSM-backed key stores. In cloud setups, specialists connect certificate services with load balancers, container platforms, and identity systems. The right stack depends on scale, compliance, and how much automation the environment needs.
When companies bring help
- Expired certificates have caused incidents or outages
- A migration changes domains, clouds, or identity providers
- Internal certificate handling is manual and risky
- Compliance requires stronger key control and audit trails
- Frankfurt teams need support that can work with security, infra, and app teams
Freelance experts are often brought in for remediation, redesign, or rollout work. They can work on-site in Frankfurt or remotely when the task is clearly scoped and access is prepared.
What good experts know
A strong specialist understands certificate policies, key algorithms, revocation, trust stores, and certificate pinning risks. They know how to test renewal flows before production and how to keep automation from breaking legacy systems. They should also explain trade-offs in plain language to security and operations teams.
Where PKI fits
PKI is common in regulated industries, enterprise IT, industrial systems, and secure B2B integrations. It supports trusted login, encrypted transport, signed software, and machine identity. In practice, it sits between security policy and day-to-day operations, so good implementation matters as much as the technology itself.
Frequently asked questions
Not sure where to start with Public Key Infrastructure? These answers cover the essentials.
Public Key Infrastructure is used to create and manage digital trust. It issues certificates for websites, internal services, users, devices, and signed software so systems can verify identity and encrypt data. It also supports revocation, renewal, and policy control when those trust relationships change.
PKI includes certificate management, but it is broader. It also covers certificate authorities, trust chains, revocation, key protection, and the rules that govern how identities are validated. Certificate management is one part of the full trust model.
A strong Public Key Infrastructure setup gives you separate public and private keys, which is safer than sharing one secret across systems. Shared secrets are simpler at first, but they are harder to rotate, audit, and limit. PKI is usually the better fit when you need scalable identity and encryption.
A good PKI specialist often works across TLS, OpenSSL, Windows or Linux trust stores, HSMs, and cloud certificate services. Scripting helps with automation, and security knowledge matters for policy, audit, and incident response. In larger environments, integration skills with identity systems and infrastructure tools are also important.
A Public Key Infrastructure project can need different levels of support depending on the risk. Simple certificate renewal work may need focused help, while a redesign of certificate authorities, revocation, and automation needs deeper experience. If outages or compliance concerns are involved, choose someone who has handled production trust systems before.
Most PKI work can be done remotely if access, documentation, and stakeholders are ready. On-site time in Frankfurt helps when the work touches internal security teams, critical infrastructure, or sensitive change windows. Many companies use a hybrid setup so design and testing are remote while rollout support is closer to the business.
A strong Public Key Infrastructure expert explains certificate flows clearly, spots expiry risks early, and designs for automation without breaking older systems. Look for someone who can map trust chains, revocation behavior, and renewal paths end to end. Good work leaves behind clean documentation and fewer manual steps.
Ask how they handle certificate lifecycle design, key protection, revocation, and rollback. For PKI, it also helps to ask which CA tools they know, how they test changes, and how they work with security and operations teams. Clear answers matter more than broad claims.
The average hourly rate of freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects is 109 €, which corresponds to a daily rate of about 872 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects, 67% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 17% hold a doctorate.
On average, freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects have 31 years of professional experience, with a single engagement typically lasting around 0.9 years.
The most common languages among freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects are German (100%), English (100%), and Spanish (29%).
The most common industries among freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects are Banking and Finance (100%), Information Technology (100%), and Insurance (86%).
The most common business areas among freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects are Information Technology (100%), Product Development (86%), and Project Management (86%).
Main locations of FRATCH Experts, who have recently used Public Key Infrastructure
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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