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Public Key Infrastructure Experts in Frankfurt

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Hire experts who design certificate lifecycles, run certificate authority and OCSP setups, and secure TLS for internal and public services. Get fast, precise matching with vetted, available freelancers.

Meet FRATCH Experts in Frankfurt, who have recently used Public Key Infrastructure

Verified expert

Werner Keil

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Test Coordinator, Designer and Engineer

Bad Homburg
Werner Keil

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
Verified expert

Jörn Bottenhorn

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Project Management and PMO

Frankfurt
Jörn Bottenhorn

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
Verified expert

Rashid Ibragimov

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Java Developer

Schwalbach am Taunus
Rashid Ibragimov

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
Verified expert

Stefan Faust

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Project Management – Telecommunications

Frankfurt am Main
Stefan Faust

Last position:

Project Management – Telecommunications at 1&1 Versatel

  • Set of concurrent projects (BSS/OSS related)

Discover over 15,000 top freelancers

Statistics of experts using Public Key Infrastructure

Aggregated from the professional profiles of matched freelancers.

Experience

30 years (Germany: 25 years)

Position duration

1 years (Germany: 1.9 years)

Positions per freelancer

26 (Germany: 18)

Top business areas

Information Technology, Operations, Product Development

Top industries

Banking and Finance, Information Technology, Insurance

Certification focus areas

Information Technology, Project Management, Product Development

Bachelor's degree or higher

67% (Germany: 85%)

Master's degree or higher

50% (Germany: 59%)

Doctorate

17% (Germany: 13%)

Certifications per freelancer

6

Most common languages

German, English, Spanish

Speak two or more languages

100% (Germany: 98%)

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 1 2 3 4
<€800 €800-​960 €1280+

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.

1000
750
500
250
Rate comparison chart
Daily rate avg. 792 €
Germany avg. 842 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 800 €
Germany median 800 €

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

PKI Basics

Public Key Infrastructure, or PKI, manages digital certificates and keys so systems can trust each other. It supports encrypted connections, signed software, device identity, and secure access for users, services, and machines.

Where it is used

  • TLS certificates for websites and APIs
  • Device and client certificate authentication
  • Code signing and document signing
  • Email security with S/MIME
  • Internal trust for enterprise services

Core components

A strong setup includes certificate authorities, registration workflows, revocation checks, and policy rules. Professionals also work with HSMs, key rotation, certificate templates, and renewal automation so trust stays consistent across systems.

Skills that matter

Good PKI specialists understand cryptography, certificate formats, trust chains, and revocation methods such as CRL and OCSP. They also know how certificates behave in browsers, VPNs, load balancers, cloud services, and mobile or IoT fleets.

When companies bring help

Teams usually look for freelance expertise when certificate expiry, failed renewals, weak trust chains, or migration work creates risk. In Frankfurt, this often matters for financial services, infrastructure, and security-heavy environments that need careful coordination with local and remote teams.

What strong experts deliver

  • Certificate lifecycle design and cleanup
  • CA, intermediate CA, and trust chain setup
  • Automation for issuance and renewal
  • Revocation and validation checks
  • Documentation for operations and audits
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Frequently asked questions

Not sure where to start with Public Key Infrastructure? These answers cover the essentials.

Public Key Infrastructure is used to create trust between systems through certificates and key pairs. It secures HTTPS, VPN access, device identity, email signing, and software signing. Without it, many security controls cannot prove who or what is connecting.

PKI is the wider trust model, while a certificate authority is one part of it. A CA issues certificates, but PKI also covers registration, validation, revocation, policies, and the full certificate lifecycle. When hiring help, look for someone who understands the whole chain, not only the CA tool.

A strong Public Key Infrastructure specialist usually knows TLS, cryptography basics, Linux or Windows certificate stores, and automation tooling. Cloud identity, HSMs, OCSP, and CRL handling are also common. In many projects, good communication matters as much as technical depth because many teams depend on certificates.

PKI work can be simple when you only need a few renewals, but it becomes delicate when many services depend on the same trust chain. For migrations, new certificate policies, or enterprise-wide automation, you want someone who has handled operational edge cases. Simple tasks need less depth; trust redesign needs a specialist with broad experience.

Public Key Infrastructure is heavier than shared secrets, but it scales better for identity, trust separation, and revocation. Shared secrets are easier at first, yet they become hard to rotate and harder to control across many systems. PKI is the better fit when you need traceable trust and certificate-based authentication.

Yes, PKI work is often done remotely because most tasks involve policy, configuration, automation, and validation. On-site time can help during rollout, outage recovery, or when physical access to HSMs and internal systems is needed. For Frankfurt teams, a mix of remote delivery and local coordination is common.

A good Public Key Infrastructure expert can explain trust chains clearly and show how certificates are issued, renewed, revoked, and monitored. Look for clean documentation, automation, and practical attention to expiry risk and operational recovery. Strong answers should cover browsers, servers, devices, and internal services without hand-waving.

Freelancers working with PKI usually ask about the current certificate landscape, the systems in scope, and whether the task is design, remediation, or operations. They also need to know who owns approvals, what tools are already in place, and whether there are compliance or audit constraints. Clear input helps them avoid surprises during rollout.

The average hourly rate of freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects is 99 €, which corresponds to a daily rate of about 792 € 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 30 years of professional experience, with a single engagement typically lasting around 1 year.

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 (33%).

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 (83%).

The most common business areas among freelancers in Frankfurt, Germany who have used Public Key Infrastructure in their recent projects are Information Technology (100%), Operations (83%), and Product Development (83%).

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.

Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg

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Philipp Thomaschewski

FRATCH CEO

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