Cryptography Experts in Germany
matched in minutes by AIHire experts who design encryption, public key infrastructure and secure authentication for software, cloud services and connected devices. FRATCH quickly matches you with vetted, available freelancers whose skills fit your security requirements.
Meet FRATCH Experts in Germany, who have recently used Cryptography
Federico L.
Last position:
Senior IAM Manager & Single Point of Contact for Information Security at EnBW Energie Baden-Württemberg AG
As Germany’s only large integrated energy company, EnBW covers the entire value chain—from energy generation and distribution to serving customers. The company is expanding its renewable energy sources, working toward a socially responsible coal phase-out, and advancing key technologies such as the use of green hydrogen. A rapid energy transition and achieving climate neutrality by 2035 are priorities for EnBW. Developing and implementing an end-to-end process view that takes both technical and organizational aspects into account Ensuring end-to-end control of all IAM-related technical services Establishing clear responsibilities and accountabilities across the IAM landscape Working with various departments to identify and optimize an end-to-end architecture and act as the Single Point of Contact (SPoC) for Information Security Introducing and monitoring governance policies to ensure compliance and security Continuously improving IAM processes and systems through regular audits and service reviews Taking part in external process audits as part of official audits against ISO standards Further developing the policy that sets administrative requirements and procedures, and aligning it with administrative departments Conceptually developing the KPI system for measuring process quality
Falko M.
Last position:
Requirements Manager at Private company - for Umweltbundesamt
- Functional requirements management for DIVID, the Umweltbundesamt platform for administering the single-use plastics fund. Focus: entitled parties, sub-entitled parties, and benefit reports.
- Consolidation and analysis of specifications, Jira, Confluence, functional concepts, and UX designs. Independent structuring and delimitation of requirements, as well as identification of contradictions, gaps, and dependencies.
- Creation and quality assurance of implementable user stories with clear, testable acceptance criteria. Preparation of decision alternatives and coordination with business, development, UX, and QA through team refinement.
- Conducting manual and technically assisted accessibility tests. Coordinating findings with QA and the Product Owner for further planning and implementation.
- Result: more consistent requirements, clearly defined processes and stories, and transparent open decisions. Separation of assumptions from confirmed requirements; better basis for implementation, refinements, and QA test cases.
Tools used: Jira, Confluence
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
Stefan A.
Last position:
Sole Architect and Developer at Bauernhof-Eis Stangl GbR
Design and implementation of a compact ERP, CRM, accounting, and production-planning platform for a German food manufacturer. The system replaces Rechnung11, self-built Excel sheets, and manual processes for fewer than 10 internal users.
- Designed and implemented the full platform architecture as sole architect and developer.
- Built modules for customer management, B2B order handling, invoicing, production planning, and accounting support.
- Implemented DATEV export, ZUGFeRD/XRechnung e-invoicing, FinTS bank statement synchronization, and GoBD audit trail concepts.
- Used AI-supported workflows for prototyping, test support, and implementation acceleration while retaining full architecture, review, testing strategy, and technical ownership.
Technology: Java 23, Spring Boot 3, Spring Data JPA, Spring Security, Vue 3, TypeScript, PostgreSQL, Flyway, REST, OpenAPI, JWT, TOTP, RBAC, DATEV, FinTS, ZUGFeRD, XRechnung, GoBD, JUnit, Mockito, Testcontainers, Playwright, Docker, GitLab CI/CD
Christian D.
Last position:
Managing Director and Senior Consultant at business-security (b-sec®) GmbH
- Conceptual consulting for securing business processes
- Consulting for planning and implementing IT and IT security projects
- Security and policy checks, process optimization, contingency planning
- Project management and interim management in IT infrastructure and information security
Overview of relevant projects:
- 2025: Consulting on a DLP concept and for Digid GmbH.
- 2025: Consulting for a customer after a cybersecurity attack in which the IT infrastructure was compromised and the attacker gained M365 tenant admin rights. Investigation and recovery of the IT infrastructure. Preparation of recommendations for increasing IT security.
- 2025: Continuation of the projects listed below for Thyssenkrupp Marine Systems and Norddeutsche Landesbank.
- 2024: Preparation of a DNS concept including consulting on DNS strategy and technology, DNS design, DNS security, load balancing, reverse lookup zones and automation. Preparation of a DHCP concept including consulting on DHCP design, the central DHCP management system and automation. Consulting on the operation of the products mentioned, operating processes, and adapting the IT documentation and IT service description for Thyssenkrupp Marine Systems.
- 2024: Analysis and assessment of the network and security infrastructure established by the providers with regard to the overall architecture, consisting of the design and components. Development of proposed solutions to improve current operations, maximize performance and security, and reduce complexity. Presentation of the results, their causes and possible solutions to C-level management, including the required decision templates. Development of a SASE concept based on a Zero Trust architecture for Norddeutsche Landesbank.
- 2024: Continuation of the projects listed below for Atlas GmbH and Deutsche Vermögensberatung AG.
- 2023: Consulting on resolving findings from an IT security assessment of the IT infrastructure, conducting proof-of-concepts for DDoS protection and Digital Experience Monitoring (DEM) with Zscaler (ZIA, ZPA & ZDX), creating a new security architecture based on Zero Trust, redesigning a Cisco ISE implementation and designing a DNS security solution to protect guests and financial advisors for Atlas GmbH / Deutsche Vermögensberatung AG.
- 2023: Continuation of the projects listed below for Digid GmbH, Vaillant Group GmbH (until 09/2023), Bundesanstalt für Geowissenschaften und Rohstoffe (until 05/2023) and Union Investment IT-Services GmbH (until 07/2023).
- 2022: Preparation and review of white papers for infrastructure and security architectures, planning new network infrastructures for Deutsches Luft- und Raumfahrtzentrum.
- 2022: Development of a concept for the technical and process-related modernization of a disaster recovery plan for United Nations Volunteers.
- 2022: Development of a concept for moving measurement data to a cloud environment, introducing Network Access Control and conducting an awareness training session for Digid GmbH.
- 2022: Development of a network segmentation concept for DZ Hyp AG.
- 2022: Development of a network segmentation concept for Bundesagentur für Arbeit.
- 2021: Development of a new load balancer architecture for Bundeswehr Fuhrparkservices GmbH.
- 2021: Vulnerability scan and penetration test of a web frontend, including evaluation and preparation of recommendations for remediation, taking risk and probability of occurrence into account, for customer ifi GmbH.
- 2021: Consulting, concept development and sub-project management for introducing a Network Access Control solution (certificate authentication and MAC address bypass) and macro-segmentation (area and zone concept based on dynamic assignment of endpoints) in office and production IT for customer Vaillant Group GmbH.
- 2021: Upgrade and optimization of the LAN and WLAN infrastructure for customer United Nations Volunteers.
- 2021: Development of a target concept for modernizing the IT security infrastructure consisting of the DMZ (Cisco switches, firewalls, WSA, ESA, SMA), internet access, admin and management networks and wireless LAN, including support during implementation, for Bundesanstalt für Geowissenschaften und Rohstoffe.
- 2021: Creation of a micro-segmentation concept based on Cisco DNA and SGT and Zero Trust for Union Investment IT-Services GmbH.
- 2021: Review and update of ISMS Level-3 policies and preparation of process instructions for customer Software AG.
- 2021: Project management for the global Tec-Refresh project Meraki WLAN 2.0, coordination of outsourcing the LAN/WLAN infrastructure to a managed service provider and preparation of a WLAN concept for automated guided vehicles for customer Heraeus Infosystems GmbH.
- 2021: Project management and technical support for the “Transition of SIEM/SOC Services” project of a customer into a shared environment and assumption of the interim role of Head of Security Operations at customer Datagroup SE.
- 2021: Workshop for a future implementation of Mobile Device Management at customer Allgeier Experts Go GmbH.
- 2021: Sub-project management for introducing a rule management tool for firewalls and recertifying NAC endpoints based on 802.1x and MAB at customer Union Investment IT-Services GmbH.
- 2020: Development of a network segmentation concept for two data centers based on Cisco and VMware for Aareon AG.
- Recording and analysis of the current network architecture, including project initiation.
- Development of a concept for micro-segmentation in the data center and access network.
- 2020: Infrastructure and security architecture audit for customer Stuttgarter Versicherung AG.
- Analysis of the IT infrastructure and IT security architecture with regard to the configuration of network and security components. Additional review of contracts, process descriptions and manuals for completeness. Development of recommendations to improve the stability and operation of the infrastructure. Preparation of a network segmentation concept and project management for implementing the measures from the analysis project.
- 2020: Consulting on setting up an ISMS-Light for customer Josera foodforplanet GmbH & Co. KG.
- 2020: Security architecture consulting for customer Datagroup SE.
- Development of a future IT infrastructure and IT security architecture.
- Analysis of the current IT architecture of all 23 companies.
- Recommendations for optimizing the IT infrastructure and preparation of a comparison between a classic perimeter security concept and the Zero Trust model.
- Preparation of a security zone concept.
- Preparation of an IT infrastructure architecture in coordination with all companies.
- 2018 - 2019: Stream Lead in the Cyber Security program of Deutsche Lufthansa AG.
- Responsible for designing and implementing 9 projects in IT security infrastructure and user access management, as well as managing project managers and experts.
- Project area: Network Segmentation and Access Control.
- Project area: Security Architecture.
- Project area: Privileged, Identity & Access Management.
- Project area: Simplify User Authentication (MFA).
- Project area: Mobile & Endpoint Security.
- Project area: OT Security.
- Project area: E-enabled Aircraft.
- 2018: Security architecture consulting for customer Deutsche Lufthansa AG.
- Project management for the development, evaluation and management of the company-wide information security architecture.
- Development of a security strategy and roadmap to align the security architecture with the Zero Trust model.
- Evaluation of security solutions, services and tools available on the market.
- Definition of requirements for RfPs and evaluation of offers.
- Development, maintenance and monitoring of security architecture artifacts.
- Conducting security assessments of existing and new IT systems and security services.
- 2018: ISMS consulting for customer GLS IT Services GmbH.
- Consulting on introducing and initially operating an ISMS based on ISO27001.
- Auditing the IT environments of the GLS country companies.
- Analysis and assessment of IT security risks and derivation of required measures.
- Development of proposed solutions in coordination with the relevant stakeholders.
- Project management and transition of the ISMS to later operations.
- 2016 - 2018: Security Pre-Sales Consultant for customer Cisco Systems GmbH.
- Nationwide strategic and conceptual consulting for major enterprise customers and financial and insurance customers on Cisco and Meraki security products and services such as Firepower, WSA, ESA, Stealthwatch and ISE.
- 2017 - 2018: Design and implementation of an ISMS for customer Verivox GmbH.
- Conducting various BIAs and GAP analyses.
- Preparation of security policies based on ISO 2700x.
- Assumption of the interim role of Information Security Officer.
- 2017: Preparation of a contingency concept for VPV Lebensversicherungs-AG.
- Review and update of the IT contingency manual.
- 2016: Consulting and project management for the design of cloud and hosting services for customer Vodafone Group Services GmbH.
- Analysis and optimization of the sell-build-run process.
- Preparation of detailed-level designs for cloud products.
M. S.
Last position:
Security Consulting, Audits & Expert Opinions
- Innovation/pilot project eGesundheit Deutschland
- SaaS company in the media sector, NRW
- Secure software development lifecycle, NRW
- BSI IT-Grundschutz expert opinions for several clinics
Laurin H.
Last position:
Software Architect (Freelance) at Care4Sure
- Delivered MVP-focused full-stack architecture for a health-sector client: Vite/React frontend, backend services on Google Cloud Run, and Supabase for database plus IAM/authentication.
- Supported product requirements engineering and prioritized cost-aware workload placement, implementing browser-side/edge computation where feasible before moving logic to backend services.
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
Baris E.
Last position:
Founder / Product & Security Architect at Pirpirik
- Perform secure code reviews and provide secure-coding guidance across the application and platform architecture.
- Engineer infrastructure security and design security-monitoring architecture, incident-response playbooks and Security-by-Design controls.
Alex K.
Last position:
Head Of Engineering at Solaris Digital Assets GmbH
Bernhard B.
Last position:
Technical Project Manager – VS-NfD Security Project
- Preparation of a complete IT security concept (ISiKo)
- Implementation of BSI / NATO / national security requirements
- Risk analysis, documentation, audit preparation
- Consulting and management of development teams in Cybersecurity Recovery and Resilience
- Genua firewalls, VPN, VS-NfD migration from Checkpoint and PaloAlto firewalls
- Administration of log sources: firewall traffic, ALG (SIP calls), ATP, DLP
- System administration – servers, AD, clients (according to BSI)
- Stakeholder communication (C-level / government agencies)
Alex V.
Last position:
CTO, Co-Founder, Cryptography(incl. Post-Quantum Cryptography) and AI Security Expertise at AISLEIPNIR
- Integration of Post-Quantum Cryptography (PQC) algorithms into high level protocols.
- Security of implementations of Post-Quantum Cryptography algorithms.
- Transition to Post-Quantum public key infrastructures.
- Security evaluations of Post-Quantum Cryptography (PQC) primitives.
- Drone Cybersecurity
- Satellite Cybersecurity
- AI Security
Mevlüt Y.
Last position:
Project at Physical Adversarial Attacks Using Fan-Based Holographic Projections
- Planned and carried out black-box adversarial testing of traffic-sign computer-vision pipelines; created a threat model and attack-surface analysis for safety-critical scenarios
- Built a programmable hardware proof of concept using a holographic POV fan and a repeatable test harness to run real-time experiments and gather evidence for vulnerability assessment
- Measured misclassification across lighting, distance, and angle, achieving up to 90% untargeted misclassification; delivered reproduction steps, PoCs, and prioritized mitigations, and documented limitations and residual risk
Sandra K.
Last position:
Webinar Leader - Blackout Prevention and Preparation at SANDRA KLINKENBERG • Management Consultant, self-employed independent business consultant
- Webinar on Blackout - Brownout - Power failure - how do I recognise it and what can I do?
Steffen L.
Last position:
Consultant for BSI baseline protection and ISO 27701 at Society for International Cooperation
- Support in building and further developing the information security management system
- Cooperation with external consultants in the certification team for the support structure
- Involvement in project planning, identification, and implementation of the necessary measures according to BSI IT baseline protection
- Professional support for in-house subject matter experts in creating the documents required for certifications
- Carrying out the work according to BSI 200-2
Discover over 15,000 top freelancers
Statistics of experts using Cryptography
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
2.2 years
Positions per freelancer
17
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Healthcare
Certification focus areas
Information Technology, Quality Assurance, Audit
Bachelor's degree or higher
88%
Master's degree or higher
59%
Doctorate
21%
Certifications per freelancer
5
Most common languages
German, English, French
Speak two or more languages
96%
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 Germany 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 Germany using Cryptography
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.
Cryptography 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 (93%)
- Banking and Finance (49%)
- Healthcare (49%)
- Manufacturing (47%)
- Automotive (40%)
- Government and Administration (38%)
- Education (36%)
- Aerospace and Defense (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Cryptography Does
Cryptography protects information while it is stored, processed and exchanged. It uses mathematical methods to provide confidentiality, integrity, authentication and non-repudiation. Companies rely on it for encrypted applications, secure APIs, digital signatures, identity systems and trusted device communication.
Core Building Blocks
Professionals work with symmetric encryption for efficient data protection and public-key cryptography for secure exchange and signatures. They select suitable algorithms, manage keys, define trust relationships and apply hashing, certificates, tokens and secure random generation. The right design also considers threat models, performance and recovery.
Ecosystem and Tooling
Cryptographic work connects software, infrastructure and security operations. Common technologies and standards include TLS, X.509, PKI, OAuth 2.0, OpenID Connect, HSMs and cloud key-management services. Useful libraries and tools include OpenSSL, libsodium, Bouncy Castle and language-native cryptographic APIs.
Where Companies Use It
- Securing web, mobile and API traffic with TLS
- Protecting databases, backups, files and messages
- Issuing certificates and managing enterprise identities
- Signing software, documents, transactions and device updates
- Building secure payment, automotive and industrial systems
In Germany, cryptographic expertise supports regulated industries, manufacturing, automotive systems and connected products. Specialists may work remotely or on site when security reviews, hardware integration or restricted environments require close collaboration.
When Freelance Expertise Helps
Companies bring in freelance professionals for security architecture, protocol reviews, key-management design, incident response and migration away from weak or outdated algorithms. They are also useful when a product team needs secure-by-design guidance without adding permanent capacity. Clear requirements, access boundaries and documentation make remote collaboration effective.
What Strong Professionals Show
Strong specialists explain security decisions in practical terms and distinguish sound cryptography from improvised protection. They test failure paths, review implementations for side-channel and misuse risks, document key lifecycles and understand operational controls. Experience with secure coding, cloud infrastructure, identity management and compliance expectations helps them deliver solutions that remain dependable in production.
Frequently asked questions
What clients ask us most about Cryptography — answered in short.
Cryptography is used to keep data confidential, prove who created or sent it, detect tampering and establish trust between systems. Typical applications include TLS, encrypted storage, digital signatures, certificate-based identity and secure device communication.
Cryptography is the broader discipline covering encryption, hashing, signatures, authentication and key management. Encryption focuses specifically on making information unreadable to unauthorized parties, while a complete cryptographic design also governs integrity, identity and trust.
A strong cryptography specialist usually understands secure software design, threat modeling, identity and access management, PKI, TLS, cloud security and operating-system controls. Knowledge of protocols, APIs and incident response helps connect mathematical protections with real production systems.
The required background depends on the risk and scope. A focused library integration may need an experienced security professional familiar with the target stack, while protocol design, HSM integration or a formal review calls for deeper expertise in cryptographic engineering and threat analysis.
Cryptography work can often be completed remotely through controlled repositories, test environments and documented reviews. On-site collaboration in Germany can be useful for hardware security modules, restricted networks, product labs or workshops involving several security and infrastructure teams.
Cryptography does not replace access controls, secure configuration, monitoring or physical protection. It complements them by protecting data and establishing trust, so the right choice depends on the threat model, key lifecycle, usability, performance and recovery requirements.
Cryptography projects often involve careful requirements work, threat modeling, implementation review, testing and detailed documentation. Professionals may also need to explain assumptions to product, infrastructure and compliance teams and work within strict rules for keys, secrets and sensitive source code.
Quality in cryptography is shown by appropriate standard algorithms, clear key ownership, safe defaults, tested failure handling and a documented threat model. Look for professionals who avoid custom primitives, review library usage carefully and explain how the design will be operated, updated and audited.
The average hourly rate of freelancers in Germany who have used Cryptography in their recent projects is 108 €, which corresponds to a daily rate of about 867 € based on an 8-hour working day.
Of the freelancers in Germany who have used Cryptography in their recent projects, 88% hold at least a Bachelor's degree, 59% hold at least a Master's degree, and 21% hold a doctorate.
On average, freelancers in Germany who have used Cryptography in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Germany who have used Cryptography in their recent projects are German (100%), English (96%), and French (31%).
The most common industries among freelancers in Germany who have used Cryptography in their recent projects are Information Technology (93%), Banking and Finance (49%), and Healthcare (49%).
The most common business areas among freelancers in Germany who have used Cryptography in their recent projects are Information Technology (98%), Product Development (82%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used Cryptography
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 Request a free demo
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