AES Experts in Germany
, matched in minutes from over 15,000 CVs with the power of AIHire experts who implement AES encryption, design key-management workflows and secure data in applications, databases and cloud environments. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical and delivery needs.
Meet FRATCH Experts in Germany, who have recently used AES
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
S.r.k. C.
Last position:
Senior Software Engineer at STEPPS GmbH / Motherson Dr. Schneider
Project: Intelligent Light Communication Software — Audi
- Analysis and clarification of system requirements with the customer and translation into software architecture and design decisions
- Architecture and implementation of CAN FD and SPI communication on NXP S32K312
- Design and development of flash bootloader, flash driver, and boot manager for secure OTA-capable updates
- Configuration of the AUTOSAR BSW architecture (Dcm, Dem, NvM, BswM, Os, Mcu, Port, Com stack, Rtc) for portability and maintainability
- Design of the crypto stack (Csm, CryIf, Crypto) for secure flash and diagnostic data; integration of the NXP HSE core and wrapper layer
- Integration of customer-specific modules (Sfd, Ivd, Npm) into the Vector AUTOSAR stack
- Definition of the memory architecture: Memmap, CMake, and linker script configuration
- Leading board bring-up for the Audi light demo platform; implementation of diagnostic routines and identifiers
Jonathan M.
Last position:
On-Site Coordinator at Freelance
- Customer interface and relationship management
- Requirements management and work coordination
- Technical and functional support focusing on automotive Ethernet
Alexander D.
Last position:
Systems Engineer at infoteam AG
- Further development and maintenance of data management software in the nuclear sector
- Processing and resolution of problem reports
- Bug fixing and defect remediation
- Performance optimization of legacy code
- Analysis and remediation of security vulnerabilities
- Specification and conceptual design of new features
- Modernization of legacy codebase to C++17
- Technologies & tools: C++, ClearCase, SQL, HTML, CSS, JavaScript, Git, Linux, Solaris, Shell-Script, VisualStudio
- Frontend – Smart Sensor Dashboard: development of a browser-based dashboard for real-time visualization of smart sensor data
- Technologies & tools: TypeScript, Angular, HTML, CSS, JavaScript, MQTT, VisualStudio
- Implementation of embedded safety software for a magnetic levitation elevator system
- Requirements engineering
- Documentation and implementation of safety software for the magnetic levitation elevator control system and the central management system
- Creation and execution of unit tests for all implemented modules
- Technologies & tools: C/C++, Jira, Bitbucket, Confluence, VectorCAST, MISRA-C, Lint, Doxygen, Git
Oliver O.
Last position:
Embedded Software Architect at Automotive supplier
Stellar SR6 G7 line, 32-bit Arm® Cortex®-R52+ MCU.
- MISRA-C, C99, Greenhills ARM compiler
- Dassault AUTOSAR Builder
- EB Tresos
- Sparx Enterprise Architect 16.1
- VS Code
- Python xml, lxml, NumPy and Pandas
ISO 26262, ISO 21434, hypervisor, key management, HSM. Tooling & automation. LieberLieber LemonTree + Sparx EA. Jira, Confluence, SharePoint. Git/Github. DevOps through Jenkins & Conan.
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.
Alois R.
Last position:
Senior Fullstack Developer at brandung GmbH
- Opt-in RAG extension over tenant-owned data sources (SharePoint, Confluence) on existing multi-tenant enterprise AI platform
- Architecture: ADRs, solution evaluations, permission strategy, cost modeling
- End-to-end SharePoint and Confluence connectors: OAuth consent flows, token refresh, metadata sync, search integration
- Permission resolution: ACL indexing at ingestion and query-time verification (document-level security)
- Elasticsearch hybrid search (semantic + keyword) with RRF scoring
- RAG chat with context injection and source citations
- Stack: Elastic Cloud, Elasticsearch, Docker, Northflank, Next.js, React, TypeScript, Prisma, Microsoft Graph API, Atlassian REST API, OAuth 2.0
Sebastian S.
Last position:
AI Engineer at Babel Group
- Developed RAG-based AI solutions integrated with enterprise data infrastructure for high-accuracy responses.
- Optimized LLM performance, reducing latency and cost with fine-tuned AI models.
- Built NLP pipelines for summarization, entity extraction, and sentiment analysis, enhancing automation workflows.
Bernhard B.
Last position:
Senior Security Architect at Intermediate Beratung
- Consulting on an ongoing IT security architecture project
- Documenting past progress and planning next steps
- Applying and implementing the BSI IT baseline protection
- Building and maintaining security management systems
- Applying the ISO 27001 standard series
- Integrating ITIL processes into security architectures
- Collaborating with public clients, regulatory authorities and internal and external service providers
Matthias S.
Last position:
AI-assisted Web Development & SaaS Founder at Self-employed
- Full focus on AI-augmented web development
- Building and running three proprietary AI-native SaaS products (BrainButler, PageUpgrade, termin365)
- Developing a self-hosted business stack for digital sovereignty
- Daily workflow with Claude as engineering partner and Anthropic/OpenAI APIs for product features
- Using RAG systems with custom vector databases and prompt engineering for complex multi-step pipelines
- Tech stack: Python/FastAPI (backend), React/TypeScript (frontend), WordPress plugin architectures (PHP), multi-tenant systems with per-user encryption
Jürgen B.
Last position:
Software Developer at Inform AG
- Coaching junior developers
- Further development and customer-specific extensions of a standard software product (microservices (DDD) and partly monolith)
- Interface extensions
- Web services
- Test automation
- Design
- Technologies used: Java8, Java17, TypeScript, Python, PostgreSQL, Spring (Integration, Data, Boot), JPA, AWS (Cloud, Lambda, EC2, SQS/SNS), Microservices, Fitnesse/Cucumber, Gitlab
Franck F.
Last position:
Multiproject Manager / Senior Business Analyst at MANN&HUMMEL
- Overall management of several project streams: mechanical development, IoT integration, software development, plant design, validation
- Management of an international project team made up of mechanical engineers, electronics engineers, software developers, designers, and external suppliers
- Coordination of global stakeholders from Germany, France, India, China, and the USA
- Planning, controlling, and reporting across all project levels: schedule, budget, resources, and deliverables (PMI-oriented)
- Moderation of steering committees, technical workshops, and milestone decisions
- Responsibility for requirements management and prioritization in the overall context (IoT, cloud, mechanical integration, safety standards)
- Quality assurance and test strategy: validation of filtration results, system behavior, plant integration
- Supplier management and procurement involvement for components, logistics, and assembly
- Risk management and escalation handling for technical, regulatory, or cross-country deviations
- Go-to-market preparation: coordination of product documentation, CE certification, training, and handover to service & sales
- Methods: multiproject management according to PMBOK, hybrid model SCRUM + classic milestone planning, stage-gate model
- Tools: MS Project, Excel, Jira, Confluence, Miro, MS Teams, SharePoint, CAD/CAE systems, test and validation software
- Technologies: OPC UA, MQTT, Siemens S7, IO-Link, Modbus, REST APIs, SCADA, monitoring dashboards, sensors & control technology, CE-compliant housing design, ISO standards
Michael K.
Last position:
Bytec Medizintechnik
- Developed solution to filter heavily noisy analog sensor data by combining high-speed sampling with digital firmware filtering
- Increased battery life of a battery-powered medical device from about 10 days to about 18 months
- Supported the overall project up to initial clinical tests and TÜV approval
Yoav N.
Last position:
Freelance Software Architect at Freelance Consultant
- Various small consultations, e.g. concepts and arcitectures.
- Updating my Matlab, Linux, IPv6, Cyber-Security, C++ (up to 23) and Python skills.
Charles J.
Last position:
Network Architect at RedGlobal GmbH
- Configuration of Dell switches, routers, and access points.
- Error analysis and resolution.
- Environment: Extreme, Cisco and Dell switches and routers, Extreme A3 NAC, Extreme CloudIQ.
Discover over 15,000 top freelancers
Statistics of experts using AES
Aggregated from the professional profiles of matched freelancers.
Experience
24 years
Position duration
2.1 years
Positions per freelancer
16
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Manufacturing
Certification focus areas
Information Technology, Project Management, Human Resources
Bachelor's degree or higher
73%
Master's degree or higher
36%
Doctorate
9%
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Germany 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 Germany using AES
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
AES 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 (88%)
- Automotive (65%)
- Manufacturing (65%)
- Telecommunication (59%)
- Healthcare (53%)
- Banking and Finance (47%)
- Aerospace and Defense (35%)
- Education (35%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What AES does
AES, or Advanced Encryption Standard, is a symmetric block cipher used to protect data at rest and in transit. It encrypts and decrypts information with the same secret key, making it a core control for applications, storage, backups, APIs and network services. AES replaced older standards such as DES and is also known through its original name, Rijndael.
Where it is used
Companies use AES when confidentiality must be built into a product or infrastructure rather than added as a manual step. Typical work includes:
- Encrypting database fields, files, backups and object storage
- Protecting session data, tokens and application secrets
- Securing VPNs, messaging systems and service-to-service traffic
- Applying authenticated encryption with AES-GCM
Ecosystem and tooling
AES expertise reaches beyond selecting an algorithm. Strong professionals work with cryptographic libraries, hardware security modules, key vaults and cloud key-management services. They understand TLS, IPsec, PKCS standards, certificate handling and secure random-number generation, while choosing maintained libraries instead of writing cryptography from scratch.
When companies need specialists
Freelance expertise is useful when a team is adding encryption to a legacy application, reviewing a design or preparing a security-sensitive release. Specialists can map data flows, select suitable modes, define key rotation and migration plans, and integrate secrets with existing identity and access controls. In Germany, they may also support distributed teams that need clear documentation and reliable remote collaboration.
What good implementation requires
A sound AES implementation protects more than the ciphertext. Professionals assess threat models, key lifetime, access boundaries, nonce handling, error behavior and recovery procedures. They distinguish encryption from hashing, avoid hard-coded keys, validate library defaults and test failure paths without exposing plaintext or secrets in logs.
Choosing the right professional
Look for evidence of complete encryption delivery rather than familiarity with the acronym alone. A capable specialist can explain why AES-GCM, AES-CTR or another mode fits the threat model, show how keys are generated and stored, and describe how rotation and revocation work. Experience with secure code review, incident response and regulated production systems is valuable for projects serving finance, healthcare, manufacturing and public services.
Frequently asked questions
Key details about AES, drawn from the questions we get asked most.
AES is mainly used to encrypt data so unauthorized parties cannot read it. Companies apply it to files, databases, backups, devices, application traffic and stored secrets.
AES is a symmetric cipher, so the same key encrypts and decrypts the data. It is generally suited to fast bulk encryption, while RSA and elliptic-curve cryptography are commonly used for identity, signatures or exchanging keys; secure systems often combine both approaches.
Advanced Encryption Standard work should include key management, secure software development and threat modeling. Useful adjacent knowledge covers TLS, authentication, identity and access management, hardware security modules, cloud key vaults and security testing.
AES implementation can be straightforward when a well-maintained library and clear requirements already exist. More complex work needs a professional who can assess data flows, select a secure mode, plan key rotation, migrate existing ciphertext and test recovery or compromise scenarios.
AES projects often work well remotely because design reviews, code changes and security documentation can be handled online. On-site collaboration may help when specialists must inspect isolated systems, hardware security modules or operational procedures, while clear technical English or German can support communication.
Rijndael, the cipher family from which AES was standardized, is not the same as an encryption mode. The right mode depends on the application, but authenticated encryption such as AES-GCM is often considered when confidentiality and integrity are both required; nonce management and library support remain essential.
AES quality is shown by a complete design, not by ciphertext alone. Ask how keys are generated, stored, rotated and revoked; whether nonces are handled safely; which library is used; how errors and logs are controlled; and how the implementation is tested against its threat model.
AES specialists should clarify what must be protected, who needs access, where keys are held and what happens when a key is lost or compromised. They should also establish whether the task involves new encryption, legacy decryption, compliance evidence, cloud integration or a broader security review.
The average hourly rate of freelancers in Germany who have used AES in their recent projects is 89 €, which corresponds to a daily rate of about 712 € based on an 8-hour working day.
Of the freelancers in Germany who have used AES in their recent projects, 73% hold at least a Bachelor's degree, 36% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Germany who have used AES in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Germany who have used AES in their recent projects are German (100%), English (100%), and Spanish (35%).
The most common industries among freelancers in Germany who have used AES in their recent projects are Information Technology (88%), Automotive (65%), and Manufacturing (65%).
The most common business areas among freelancers in Germany who have used AES in their recent projects are Information Technology (100%), Product Development (88%), and Project Management (71%).
Main locations of FRATCH Experts, who have recently used AES
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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FRATCH CEO
