Public Key Infrastructure Experts in Cologne
, matched in minutes from over 15,000 CVsHire experts who design certificate authorities, manage certificate lifecycles and integrate identity-based encryption into enterprise systems. FRATCH matches you quickly and precisely with vetted, available freelancers for Public Key Infrastructure projects.
Meet FRATCH Experts in Cologne, who have recently used Public Key Infrastructure
Matthias S.
Last position:
Overall Project Coordinator at Bundeswehr Informatik (BWI GmbH)
- PMO Lead Security Clearance 2 (SÜ2) verified
- Reporting to the GMN sub-program management
- System maintenance 25+
- Functional management and coordination of the Jira setup
- Preparation of decision papers (e.g. project planning, governance model, communication plans, controlling models, roles and responsibilities matrices)
- Development of program-wide knowledge management using Confluence, creation of Jira concept
- Development of an access concept for all project tools
- Analysis of existing processes, identification of improvement potential, and design of solutions to increase efficiency and effectiveness
- Development of a concept for introducing automation approaches into existing tools
- Creation of intranet articles for project marketing
- Responsible for project governance through reporting and resource planning in the sub-program
- Agile development of the project methodology
- Gathering customer requirements (Requirements Engineering)
- Preparation and support of contract negotiations (7-year term, 500+ million budget)
Jens R.
Last position:
Platform Architect & Senior Developer at Direct client, industrial measurement technology, medium-sized company
- Technical leadership across hardware, firmware, and software teams; scope: hardware/firmware team (4 people) and leadership group (5 people)
- Consolidated and documented a product family that had grown over more than 15 years and aligned it with CRA compliance — from the bare-metal I/O module to the cloud interface.
- Provided the most important customer product with the essential requirements and architecture documentation within two months — for a firmware landscape that had grown over more than 15 years. It now supports the customer’s modernization strategy.
- Established a monthly reporting line to the supervisory board and executive board within three months: nine meetings since 12/2025. The report itself is versioned and built from the CI pipeline; it is based on automatically collected activity and release data instead of assessments.
- Built a container-based CI/CD infrastructure from scratch: cross-compilation, host tests, and documentation builds in one continuous pipeline.
- Introduced declarative QA gates for DevOps and development artifacts — from the start using lefthook instead of pre-commit, executed in a dedicated container image.
Technologies used: arc42, req42, tpo42, docToolchain, PlantUML, ArchiMate, C4 model, ADR, C, C++ (GTest), CMake, Bare Metal (ARM Cortex-M3/M7), OCI containers, Jenkins, lefthook, Prometheus, Grafana, SBOM, CRA, OPC, SCADA, PLC integration, IPv6 migration, Zero Trust, Sociocracy 3.0, Cynefin
Pierre G.
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
Stanislaus S.
Last position:
Security Consultant at Rohde & Schwarz AG at Star Labs GmbH
- Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
- Developed and audited Linux drivers
- Collaborated using GitLab, Gerrit, Confluence and Jira
- Technologies: C, C++, Secure Boot
Yannick T.
Last position:
Cloud Architect at Anonymous
- Implementation of Infrastructure as Code (IaC) with Terraform to ensure a scalable, repeatable, and secure Azure infrastructure
- Implementation and optimization of CI/CD pipelines with Azure DevOps
- Management of container and server environments and AKS
Fabian F.
Last position:
OT Security Champion Europe at FCS Flock Consulting Services
- Conducted OT security assessments at European manufacturing facilities
- Analyzed and improved IT security processes and infrastructure
- Revised SOC processes in conjunction with the internal SOC team
- Conducted OT incident training and tabletop exercises
- Facilitated C-level workshops to align European OT security strategy
- Evaluated regulatory changes related to NIS2 and their relevance to the client
Christian G.
Last position:
Deputy Chief Information Security Officer at Gothaer Solutions GmbH
- Deputy lead of the 10-member information security management team in a highly regulated environment (DORA, VAIT, BAIT)
- Direct reporting lines to the CIO of the Gothaer Group and the management board of Gothaer Solutions
- Regular member of the Group Risk Committee and the Compliance Committee
- Managing and coordinating information security processes within the company and with IT service providers
- Leading task forces for handling information security incidents
- Contributing to IT emergency and business continuity management
Discover over 15,000 top freelancers
Statistics of experts using Public Key Infrastructure
Aggregated from the professional profiles of matched freelancers.
Experience
12 years (Germany: 24 years)
Position duration
1.8 years
Positions per freelancer
19 (Germany: 18)
Top business areas
Information Technology, Project Management, Operations
Top industries
Information Technology, Healthcare, Manufacturing
Certification focus areas
Information Technology, Audit, Product Development
Bachelor's degree or higher
67% (Germany: 76%)
Master's degree or higher
67% (Germany: 51%)
Certifications per freelancer
8 (Germany: 6)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 99%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Cologne are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Cologne 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 29 Oct 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.
- Information Technology (100%)
- Healthcare (57%)
- Manufacturing (57%)
- Government and Administration (57%)
- Aerospace and Defense (43%)
- Energy (43%)
- Banking and Finance (43%)
- Insurance (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What PKI does
Public Key Infrastructure, commonly called PKI, is the framework for issuing, validating and revoking digital certificates. It connects public-key cryptography with trusted identities so systems can authenticate users, devices, services and organizations. Companies use PKI to protect data in transit, sign software and documents, and establish secure access between systems.
Core components
A PKI environment usually includes a root certificate authority, subordinate certificate authorities, registration processes, certificate stores and revocation services. Specialists also work with certificate policies, trust chains, key pairs, hardware security modules and protocols such as OCSP and SCEP. Common ecosystems include Microsoft Active Directory Certificate Services, OpenSSL, HashiCorp Vault, Keyfactor and cloud certificate services.
Where it is used
PKI supports security controls across infrastructure, applications and connected devices:
- TLS certificates for websites, APIs and internal services
- Smart cards, badge systems and device authentication
- Code signing, email encryption and document signatures
- Mutual TLS for service-to-service communication
- Industrial, automotive and Internet of Things environments
It is especially important where systems must prove identity without relying only on passwords. Regulated industries, manufacturers, public institutions and companies with distributed infrastructure often depend on carefully managed trust relationships.
When specialists help
Companies bring in freelance PKI specialists during migrations, security improvements, audits and major infrastructure changes. They can design a certificate hierarchy, replace expiring certificates, automate renewal, resolve trust-chain failures or move services from an on-premises authority to a cloud-based model. In Cologne, projects may involve local operations alongside remote teams, making clear documentation and reliable handovers essential.
Skills that matter
Strong professionals understand cryptography without treating it as an isolated discipline. They combine certificate management with identity and access management, Active Directory, Linux or Windows administration, network security, DevSecOps and infrastructure automation. Useful tooling may include PowerShell, Terraform, Ansible, API integrations and monitoring for certificate health. They also know how to document ownership, renewal paths and emergency revocation procedures.
How to judge quality
Look for someone who can explain trust boundaries, key protection and failure scenarios in plain language. Relevant delivery experience includes certificate inventory, policy design, automated issuance, hardware-backed key storage and incident response. A thorough specialist tests revocation, renewal and recovery before production rollout, records every dependency and leaves the team with an operating model it can maintain.
Frequently asked questions
Questions about Public Key Infrastructure? Start with the answers below.
Public Key Infrastructure is used to establish trusted digital identities and secure communications. It supports TLS, device authentication, code signing, encrypted email, document signatures and mutual authentication between services.
PKI uses certificate-backed key pairs instead of requiring every participant to share the same secret. It can provide stronger machine identity and more controlled trust, but it also requires disciplined certificate issuance, renewal, revocation and key protection.
A strong Public Key Infrastructure specialist often combines cryptography with identity and access management, network security, Active Directory, Linux or Windows systems and automation. Experience with HSMs, cloud services, DevSecOps and certificate monitoring is also valuable.
The right level depends on the scope and risk of the environment. PKI work involving a new certificate hierarchy, hardware-backed keys, regulated systems or a migration needs someone who has designed and operated comparable trust infrastructures, not only issued individual certificates.
Public Key Infrastructure projects can often be delivered remotely when access, change controls and documentation are well prepared. On-site work may still help with hardware security modules, restricted networks or operational teams in Cologne, while German and English collaboration requirements should be agreed early.
Companies commonly seek PKI expertise before a certificate authority migration, after repeated certificate outages or when automation and inventory are missing. External support is also useful for audits, major identity changes, cloud adoption and designing a lifecycle process the internal team can operate.
Ask how the specialist would map trust chains, protect private keys, test revocation and recover from a compromised authority. A capable Public Key Infrastructure professional can explain risks clearly, document dependencies, automate repeatable tasks and demonstrate safe renewal and failure procedures.
A typical PKI engagement may produce a target architecture, certificate policy, inventory, authority configuration, renewal automation and operating documentation. It should also define ownership, monitoring, incident response and a tested process for revoking certificates and replacing compromised keys.
The average hourly rate of freelancers in Cologne, Germany who have used Public Key Infrastructure in their recent projects is 137 €, which corresponds to a daily rate of about 1,093 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Public Key Infrastructure in their recent projects, 67% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used Public Key Infrastructure in their recent projects have 12 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Cologne, Germany who have used Public Key Infrastructure in their recent projects are German (100%), English (100%), and French (43%).
The most common industries among freelancers in Cologne, Germany who have used Public Key Infrastructure in their recent projects are Information Technology (100%), Healthcare (57%), and Manufacturing (57%).
The most common business areas among freelancers in Cologne, Germany who have used Public Key Infrastructure in their recent projects are Information Technology (100%), Project Management (86%), and Operations (71%).
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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