OpenSSL Experts in Germany
matched in minutes from over 15,000 CVsHire experts who secure TLS services, build certificate automation and troubleshoot cryptographic integrations across Linux, cloud and embedded environments. Get precisely matched with vetted, available freelancers who can start quickly.
Meet FRATCH Experts in Germany, who have recently used OpenSSL
Predrag P.
Last position:
Test Developer | Test Automation Engineer at CreditReform
Technologies: Java 25, Selenium, Insomnia, SSO, Gitlab, Jenkins, Docker, Kubernetes, Jira, IntelliJ, Nexus, Oracle, MariaDB, SpringBoot, Grafana, Concept Board, Vue.js, OpenApi, Kotlin. Implementation, maintenance, and enhancement of automated end-to-end regression tests for UI and API interfaces. Appropriate and targeted test automation involving multiple software products, including Java-based Windows applications. Automation of business processes with Selenium, reset jobs, and DB import jobs, as well as creation of test concepts, test case descriptions, and structured defect reporting.
Anton L.
Last position:
Senior Solution Architect
Internal systems with regulatory and security requirements could not be used directly by AI tools for incident triage, troubleshooting, and documentation search. The goal was to securely integrate these systems through MCP while preserving existing acce...
Florian W.
Last position:
Software Engineer at micimo GmbH
- Developing a professional appointment planner for organizations with specific, detailed requirements
- Evaluating various existing software solutions
- Creating a list of technical requirements
- Implementing these requirements
- Technologies under consideration: WebDAV, CalDAV, Rust, Baikal, OAuth, Keycloak
Frank B.
Last position:
System Engineer at Frequentis Comsoft
- Migrate company software to RHEL10
- Development in Bash, Python, C, Ansible
Alexander S.
Last position:
AI Consultant for AI Voice Bot System at Rudolf Hörmann GmbH & Co.KG
- Consultant for system architecture, AI agents & integration, coach for data & process logic, Graph-RAG approaches, security and data protection.
- On-premise AI solutions with high compliance and performance requirements.
- Architecture decisions, operational setup, strategic prioritization & deployment.
- Technologies: LiveKit JS SDK, LiveKit Agents, Web Audio API, JS, AudioWorklet, Loki, vLLM, Zscaler, Docker, Neo4j, MySQL, Python.
- Models: GPT-OSS 20B, Whisper large v3 turbo, Qwen3-TTS.
Lino G.
Last position:
Senior Data Scientist at VinFast Germany GmbH
- Led strategic software development of fusion algorithms for precise object tracking, trajectory prediction, and environment modeling based on multimodal sensor data (e.g., camera, LiDAR, radar, GNSS, IMU)
- Developed and implemented navigation algorithms for autonomous vehicles, including path planning, obstacle avoidance, and sensor fusion of visual, inertial, and distance-based sensor sources
- Automated extraction and training processes with CI/CD
- Developed and optimized data pipelines and processes in Microsoft Azure using Apache Spark, Databricks, and PySpark
- Developed and optimized embedded software for automotive control units
- Designed latency-critical software for real-time control in robotic systems with RTOS (freeRTOS, SAFERTOS)
- Used the Vector toolchain (CANdela, DaVinci, CANoe) for configuration and diagnostics
- Optimized existing data pipelines and processes (ETL, data warehouse, SQL)
- Developed and trained machine learning models using PyTorch
- Created deep-learning-based object detection and visual SLAM algorithms, trained on combined data from camera, LiDAR, and IMU sensors
- Implemented computer vision algorithms for object detection and classification in robotic systems using OpenCV and YOLO, utilizing synchronized image and depth data
- Implemented behavior-based control systems for autonomous robots using ROS2 Behavior Trees
- Performed testing, release, and integration of sensor fusion algorithms into automotive production programs
- Ensured adherence to proper software development processes and safety standards to guarantee high data quality (MISRA, ISO 26262, ASPICE)
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
Michael K.
Last position:
DevOps, Linux Administrator, Infrastructure, Security at ERGO / ITErgo
- Installation, planning, maintenance and further development of the server farm in the area of hardware and software
- Migration of live systems with minimized downtime
- Processing tickets and changes in daily business
- Documentation of changes and processes in Confluence
- Test runs in the development environment
- Configuration and administration of Linux systems
- Configuration and administration of backup systems (Dell Networker, DataDomain)
- Administration of the Checkpoint firewall
Yannis V.
Last position:
Tutor at GFU Cyrus AG
- Unreal Engine, Unity, Virtual Reality, Augmented Reality, PHP, React, Vue, Laravel, Node.js, Flutter, Git, TypeScript, JavaScript, HTML
- Unreal Engine 5 basics
- Development of augmented reality applications with Unity
- Software documentation
- and much more
Ronald T.
Last position:
Product Owner at Dataport AöR
- Setting up and growing the business unit
- Stakeholder management
- Conducting and facilitating workshops to gather requirements
- Requirements analysis and solution design
- Backlog management
- Project planning and management
- Resource planning
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
Dietrich C.
Last position:
Linux Systems Engineer at Personal Projects and Further Training
- Skills: ACLs, Android, Ansible, Apache, Backup, Bash, BindFS, Modern C++, CFEngine, ClusterSSH, CSS, CUPS, Debian, DHCP, DNS, dovecot, exim4, Firewall, FUSE, GIMP, Git, gnupg, HTML, IMAP, IPv4, Kerberos, LDAP, LineageOS, Linux, Mercurial, NAT, Networking, NFSv4, OpenPGP, OpenSSH, OpenSSL, OpenVPN, PHP, pxelinux, Python, RAID, Responsive Web Design, Routing, Shorewall, SMTP, SSHFS, SSL/TLS, systemd, TFTP, UPS, VPN, X11, XMPP
Daniel W.
Last position:
Web Developer and Linux System Administrator at Freelancer
- Consultation on setting up a web server with Apache2 and PHP FPM and an email server with Postfix and Dovecot for Learn4good Ltd.
- Programmed website under-construction.bermudafunk.org in collaboration with a designer and client for bermuda.funk Freies Radio Rhein-Neckar e.V.
- Consultation and network setup on-site including switches, routers, Wi-Fi, network monitoring, firewalls, and installation of sFirm banking software for The Swiss Quality Consulting GmbH
- Consultation on website management and development, email migration from Outlook to cPanel, image optimization, and setting up Square payments for The JABA Group Ltd.
- MS365 consultation, email setup, and document synchronization for PK reno GmbH
- Development and integration of WooCommerce plugins, B2B shop setup, and custom shipping label export for Nurso GmbH
- Minor changes implementation for existing Kirby system for Julia Rautenhaus
- Analysis and fixing of WordPress website after broken updates for Alina Frey
- Linux server hardening, updates, and throughput optimization for 3proxy servers for Lietparkas UAB
- Malware removal from hacked WordPress website for Timo Horn
- Cold email outreach system setup with Postfix and Dovecot and script development for Aman Ketebo
- Customized Docker container creation based on AlmaLinux with ImageMagick 7 and consultation on Docker installation for Henry Hook
- Plesk hosting environment management, code fixes, external supplier integration, and content support for First Class Corporation
- Shopify theme customization, feature development, and payment integration consultation for Youro GmbH
- Intel camera support on Ubuntu after upgrade for Making stories with a lesson
- NginX configuration support on Windows Servers for a NodeJS application for ARMBRUSTER empiric it
- Competitor email verification mechanism analysis for Casey Monaghan
- Plugin development and API connector to Inswitch for freelance website payments for Mediaquotes
- Private XMPP server setup on Raspberry Pi for Antonio Codespoti
- WordPress website recovery after broken plugin update for A & R Tennis
- Microsoft account and Office/Outlook migration support for Prof. Dr. Hanns-Ferdinand Müller
- Customization and performance optimization of client websites for sk.design
- VPN configuration and hacked server cleanup for Xisio Informationssysteme GmbH
- PeerTube server setup and maintenance for Lupin Vondosky
- Lightweight WordPress booking solution programming tailored to client needs for AP Online Marketing
- Code refactoring, bug fixing, and business/technical consultation for RentAfrika
- SellYourSaas setup and deployment infrastructure configuration for I-Motion SARL
- Server, email, GitLab, project management, password management software, and VPNs setup and maintenance for Markus Sattler
- Custom development for over 10 WordPress projects for TOGEMAXX media & webdesign
- WooCommerce shop setup and FTP supplier product import development for SERVOMED GmbH
- Open-source contributions to Whonix components, iptables to nftables migration, shutdown inhibition investigation, and IPv6 support addition for ENCRYPTED SUPPORT LP
- Custom feature development, performance optimization, update management, email delivery support, plugin bug fixes, and translations for KU Europe GmbH
- Custom plugin/theme development, server infrastructure management, support for 100+ WordPress websites, API connector development, deployment script setup, VPN configuration, DNS, email, and web hosting support for giftGRÜN GmbH
- Server setup, web and email hosting migration, and website maintenance and development for Eisbaden.de
- Custom WordPress and Shopify development for EcomPlus GmbH
- Hacked website recovery and hosting migration for Be Brave gUG
- Finalization of development tasks left incomplete by another developer for Medicare Consulting GmbH
- Recovery of unbootable hacked server for SK-Software, Entwicklung & Beratung
Hobby projects:
- Development and running of a web chat application
- Development and running of an email service
- Development and running of a darknet link list
- Development and running of a darknet web hosting platform
- Code contributions to open source projects such as LMMS, Audacity, and Ubuntu
Yodgorbek K.
Last position:
Android Developer at Mein Artz
- Led the development of a doctor scheduling Android app, integrating Jetpack Compose and Kotlin Multiplatform, achieving a 30% performance improvement.
- Implemented complex UI components, ensuring 99.8% crash-free user sessions.
- Seamlessly integrated Compose UI with existing View-based components.
- Optimized API calls, reducing load times by 20%.
- Tech Stack: Kotlin, Jetpack Compose, KMM, MVVM, Koin, Firebase, Stripe API, Crashlytics
Kai N.
Last position:
Firmware Developer (GPS Receiver) at Collins Aerospace
- Continued updates to NavHub GPS server firmware on ARM system
- Developed embedded C/C++ code using Eclipse, embedded Linux, GCC
- Implemented web UI with JavaScript/jQuery, PHP, CSS, HTML
- Configured HTTPS/PKI setup using OpenSSL and Nginx
Discover over 15,000 top freelancers
Statistics of experts using OpenSSL
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
3.7 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Education
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
86%
Master's degree or higher
50%
Doctorate
21%
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
100%
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 OpenSSL
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.
OpenSSL 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 (95%)
- Manufacturing (48%)
- Education (38%)
- Healthcare (38%)
- Telecommunication (38%)
- Automotive (33%)
- Aerospace and Defense (29%)
- Energy (24%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
TLS and cryptography
OpenSSL is an open-source toolkit for implementing TLS, SSL legacy compatibility, public-key cryptography and certificate handling. It provides libraries and command-line tools used to protect traffic between web servers, APIs, mail systems, VPNs and internal services. Modern projects usually rely on TLS rather than older SSL protocols.
Core capabilities
OpenSSL supports key generation, certificate signing requests, certificate validation, encryption, hashing and digital signatures. Its libssl and libcrypto libraries integrate with applications written in C and with higher-level runtimes. The command-line interface helps specialists inspect certificates, reproduce handshake failures and validate security settings.
Ecosystem and tooling
OpenSSL appears across Linux distributions, web servers, reverse proxies, containers and network appliances. Strong specialists understand certificate authorities, X.509 chains, PKI, mutual TLS, elliptic-curve cryptography and protocol versions. They may also work with curl, nginx, Apache HTTP Server, Kubernetes secrets, hardware security modules and language bindings.
Where companies use it
- Protect public websites, APIs and service-to-service traffic with TLS
- Automate certificate creation, renewal, deployment and revocation
- Diagnose handshake, cipher, trust-store and hostname failures
- Integrate cryptography into gateways, appliances and embedded products
- Modernize applications that depend on outdated SSL settings
OpenSSL is common in banking, manufacturing, telecommunications, healthcare and public-sector environments in Germany. It supports both internet-facing services and private infrastructure where controlled trust and strong identity verification matter.
When freelance expertise helps
Companies bring in a freelance specialist during a migration, security review, incident or platform rollout. Typical work includes replacing weak protocol settings, resolving certificate-chain errors, upgrading library integrations and documenting key-management procedures. Remote collaboration works well for configuration and testing, while on-site access can help with restricted networks, appliances or hardware-backed keys.
What strong specialists deliver
The best professionals treat OpenSSL as part of a complete security design, not as a single command-line utility. They establish safe defaults, protect private keys, test trust paths and explain operational ownership clearly. They distinguish application faults from network, DNS, certificate-authority and operating-system issues, then leave repeatable automation and useful runbooks behind.
Frequently asked questions
What clients ask us most about OpenSSL — answered in short.
OpenSSL is used to create and inspect keys and certificates, establish TLS connections and provide cryptographic functions to applications. Companies rely on it for secure websites, APIs, mail services, VPNs, internal services and embedded products.
OpenSSL has broad operating-system support, a large ecosystem and extensive compatibility with existing applications. BoringSSL is maintained for specific Google-related environments, while LibreSSL focuses on a portability and security-oriented fork; the right choice depends on compatibility, support requirements and the target platform.
A strong OpenSSL specialist should understand TLS handshakes, X.509, certificate authorities, PKI, DNS, Linux networking and secure key storage. Experience with nginx, Apache HTTP Server, curl, containers, Kubernetes or application language bindings is also valuable.
The scope matters more than a fixed career milestone. A certificate renewal task may need focused command-line and deployment knowledge, while a custom cryptographic integration or incident investigation calls for deep protocol, code-level and operational expertise.
Yes, many OpenSSL tasks can be completed remotely through secure access, test environments and documented deployment processes. On-site collaboration may be preferable when the work involves isolated networks, physical appliances, regulated access controls or hardware security modules.
Ask the specialist to explain certificate-chain validation, private-key protection, protocol selection and failure diagnosis in practical terms. A capable OpenSSL professional can show repeatable tests, cautious change procedures and clear documentation rather than relying on copied configuration snippets.
Common issues include expired or misissued certificates, incomplete trust chains, hostname mismatches, incompatible cipher settings and failed mutual TLS authentication. OpenSSL specialists can separate these faults from application, DNS, firewall and operating-system problems.
OpenSSL specialists often assess legacy SSL configurations during upgrades, but secure projects should normally disable obsolete protocols and weak algorithms. The professional should plan compatibility testing, identify dependent clients and provide a controlled migration path instead of preserving unsafe settings indefinitely.
The average hourly rate of freelancers in Germany who have used OpenSSL in their recent projects is 102 €, which corresponds to a daily rate of about 815 € based on an 8-hour working day.
Of the freelancers in Germany who have used OpenSSL in their recent projects, 86% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 21% hold a doctorate.
On average, freelancers in Germany who have used OpenSSL in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 3.7 years.
The most common languages among freelancers in Germany who have used OpenSSL in their recent projects are German (100%), English (100%), and Spanish (29%).
The most common industries among freelancers in Germany who have used OpenSSL in their recent projects are Information Technology (95%), Manufacturing (48%), and Education (38%).
The most common business areas among freelancers in Germany who have used OpenSSL in their recent projects are Information Technology (100%), Product Development (95%), and Quality Assurance (71%).
Main locations of FRATCH Experts, who have recently used OpenSSL
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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Philipp Thomaschewski
FRATCH CEO
