Public Key Infrastructure Experts in Berlin
matched in minutesHire experts who design certificate hierarchies, automate X.509 certificate lifecycles and protect enterprise identity systems. FRATCH connects you with vetted, available freelancers through fast, precise AI matching.
Meet FRATCH Experts in Berlin, who have recently used Public Key Infrastructure
Toralf C.
Last position:
IT Consultant in PKI Software Development at BWI
- Implementation of a full-stack application with Angular as frontend framework and Java as backend language
- Use of the Swagger OpenAPI specification for REST communication between frontend and backend applications
- Control of a card printer via the Nexus Card SDK framework
- Design and implementation of card management software with web interface and JavaFX module for printer monitoring
- Use of Cucumber tests for test automation and creation of test artifacts for testing outside the development environment
- Use of Wireshark for network investigations to analyze the API of a third-party product and to check the REST API of the self-developed software
André B.
Last position:
External Attack Surface Assessment & Cybersecurity Readiness Checks at Graydaxe Cybersecurity GmbH
- Conducting cybersecurity readiness checks based on an in-house assessment methodology
- Analyzing the external attack surface using the Graydaxe EASM platform
- Assessing maturity levels and deriving prioritized recommendations for action
Matthias K.
Last position:
Requirements Manager (freelance) at Bundesdruckerei GmbH
- Maintenance of the product backlog in collaboration with the PO
- Analysis and alignment of requirements
- Creation of process documentation and status reports
- Definition of workflows
- Preparation and moderation of agile meetings
Peter K.
Last position:
Hardware and Software Developer / Project Manager at Anonymer Kunde
- Development of control units for the automotive industry incl. embedded software
- CAN bus, Vector Tools, CANoe
- Support of the development process according to ISO 26262
- Ensuring cyber security standards:
- Key exchange (PKI) between vehicle and control units
- Hardware Security Module (HSM)
- Communication with external service providers (international)
- Development (PCB) of measuring adapters, statistical analysis of sensors
- IoT and embedded software development, backend administration
Jan K.
Last position:
Consultant for Information Security & Auditor at Kopiasonsulting GmbH
Operational management of the company: building teams and infrastructure, developing products, analysis and implementation of IT security measures
Project assignments in the IT security environment focusing on establishing blue teaming activities (defensive processes and technologies) to defend against cyber attacks
Conducting red teaming processes, including penetration tests and security analyses for companies
Consulting on setting up Security Operation Centers and implementing SIEM systems, and building Computer Incident Response Teams (CSIRT)
Auditor for ISO 9001 and ISO 27001, § 8a, ISO 27019, § 11 1a EnWG, TISAX
Advising companies in critical infrastructures on information security and compliance with the IT Security Act
Building SIEM/SOC processes and SOC analyst work (Splunk, ELK-Stack)
Integrating data into monitoring tools (Prometheus, Grafana)
Consulting on BSI IT baseline protection, ISO 9001, ISO 27001, BCM, ITIL and risk management
Security assessments and penetration testing of IT and network architectures
Pawel N.
Last position:
Subject Mater Expert Linux at TCS Alliance Healthcare
- Updating/upgrading Linux servers to new versions
- Installing Trend Micro on Linux servers
- Creating, presenting and maintaining technical documents
- Refactoring tools
- Platforms: SUSE Linux Enterprise Server (SLES) 10, 11, CentOS, RedHat, Windows 10, PowerShell, Bash, Perl, Trend Micro AV, PuTTY, SSH, VMware
- Project language: English
Discover over 15,000 top freelancers
Statistics of experts using Public Key Infrastructure
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 24 years)
Position duration
1.8 years
Positions per freelancer
17 (Germany: 18)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Healthcare, Manufacturing
Certification focus areas
Information Technology, Audit, Product Development
Bachelor's degree or higher
100% (Germany: 76%)
Master's degree or higher
60% (Germany: 53%)
Doctorate
40% (Germany: 10%)
Certifications per freelancer
6
Most common languages
German, English, Polish
Speak two or more languages
100% (Germany: 99%)
Based on our profile pool as of 20 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Berlin 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 Berlin 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 20 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 (67%)
- Manufacturing (67%)
- Government and Administration (67%)
- Energy (50%)
- Professional Services (50%)
- Aerospace and Defense (33%)
- Automotive (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Trust foundations
Public Key Infrastructure, or PKI, establishes trust for digital identities, encrypted communication and signed data. It combines asymmetric cryptography with certificate authorities, registration processes and certificate policies. Companies use it to verify people, devices, services and software before allowing access or accepting a digital signature.
Where PKI runs
PKI supports the security layer behind many connected systems and regulated workflows:
- TLS certificates for websites, APIs and internal services
- Smart cards, employee credentials and device authentication
- Code signing, document signing and secure email
- VPN access, Wi-Fi authentication and zero-trust controls
- Industrial equipment and machine-to-machine identity
It can run across data centers, cloud environments, offices and distributed device fleets.
Core ecosystem
A PKI environment may include a root certificate authority, subordinate CAs, registration authorities, certificate stores and hardware security modules. Professionals work with X.509, OCSP, CRLs, key ceremonies and certificate policy documents. Common tooling includes Microsoft AD CS, OpenSSL, HashiCorp Vault, Smallstep, EJBCA and cloud certificate services.
Delivery and automation
Strong specialists define trust models, configure issuance and renewal workflows, and integrate certificates with identity providers, operating systems, containers and service meshes. They automate discovery, enrollment, rotation and revocation through APIs and policy controls. Infrastructure as code, secrets management, logging and incident procedures keep certificate operations repeatable and auditable.
When to bring expertise
Freelance support is useful when certificates are expiring across complex estates, a new CA hierarchy is needed or manual issuance creates operational risk. It also helps during cloud migration, mergers, device rollouts and compliance reviews. In Berlin, teams may need professionals who can collaborate on-site for key ceremonies while handling design, automation and documentation remotely.
What quality looks like
A capable PKI professional starts with threat modeling and clear ownership of keys, certificates and trust anchors. They separate offline and online authorities, protect private keys, test recovery and document every approval path. They also explain trade-offs between enterprise CA products, open-source tools and managed services, then leave behind monitoring, renewal alerts and practical runbooks for the operating team.
Frequently asked questions
Not sure where to start with Public Key Infrastructure? These answers cover the essentials.
Public Key Infrastructure is used to establish trusted digital identities and protect communications. It supports TLS, VPNs, Wi-Fi access, smart cards, device authentication, code signing, document signing and secure email.
PKI uses a private and public key pair, so systems can authenticate identities without distributing one shared secret to every participant. It offers strong protection for automated and device-based access, but it requires disciplined certificate issuance, renewal and revocation.
A strong Public Key Infrastructure specialist usually understands identity and access management, network security, DNS, TLS, Linux or Windows administration, cloud services and infrastructure automation. Experience with HSMs, secrets management, logging and incident response is also valuable.
The right level depends on the risk and scope of the trust environment. A simple certificate automation task may need focused implementation expertise, while a new root and subordinate CA hierarchy calls for someone who can design governance, key ceremonies, recovery procedures and long-term operations.
PKI design, configuration, automation and documentation can often be completed remotely with secure access and clear change controls. On-site collaboration may still be appropriate for hardware security module setup, key ceremonies or sensitive integration work, depending on the organization’s policies.
Common choices include Microsoft AD CS, OpenSSL, HashiCorp Vault, Smallstep, EJBCA and managed certificate services from cloud providers. The best option depends on certificate volume, integration needs, operating model, compliance requirements and the organization’s ability to run a certificate authority.
Look for clear trust boundaries, protected private keys, documented certificate policies and tested revocation and recovery processes. A capable Public Key Infrastructure professional also provides monitoring, renewal automation, audit trails and runbooks that another team can operate.
PKI work may involve strict access controls, documented approvals and coordination with security, infrastructure and compliance teams. For Berlin-based engagements, German or English communication may be relevant, especially when explaining certificate policies, operational procedures and incident responsibilities to local stakeholders.
The average hourly rate of freelancers in Berlin, Germany who have used Public Key Infrastructure in their recent projects is 105 €, which corresponds to a daily rate of about 841 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Public Key Infrastructure in their recent projects, 100% hold at least a Bachelor's degree, 60% hold at least a Master's degree, and 40% hold a doctorate.
On average, freelancers in Berlin, Germany who have used Public Key Infrastructure in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Berlin, Germany who have used Public Key Infrastructure in their recent projects are German (100%), English (100%), and Polish (50%).
The most common industries among freelancers in Berlin, Germany who have used Public Key Infrastructure in their recent projects are Information Technology (100%), Healthcare (67%), and Manufacturing (67%).
The most common business areas among freelancers in Berlin, Germany who have used Public Key Infrastructure in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (100%).
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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
