AES Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used AES
Stefan Amann
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. Chandra
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 Moreau
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 Döhrmann
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
Alexander Schulze
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 Rietzler
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 Schkudlara
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 Bowitz
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 Schneider
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
Franck Fondjo Ndetta
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 Kraft
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 Netzer
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 Jakob
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.
Said Waezsada
Last position:
HSE Manager at Worley
- Consultation on HSE-related topics
- Preparation of relevant documents (EHS plans)
- Construction inspections
- Construction meetings
- Construction briefing
- Review of contractors' risk assessments
Fabian Kolbe
Last position:
Senior Sales Engineer at apinity - A MunichRE company
- Fully establishing and executing the sales engineering function including discovery, value proposition, demos, RFPs and proof of concepts for a leading SaaS API Marketplace and Management solution
- Achieved the technical wins and closed 11 deals in partnership with 4 AEs, generating an ARR of 1.8 million. Serving large and mid-sized insurance companies, banks, and consultancies. Main focus on DACH with accounts in the whole EMEA region
- Led solution sales for technically complex environments, integrating with API gateways and cloud technologies
- Collaborated closely with strategic partners, like Google Cloud Apigee, and facilitated the transfer of technical requirements to the Product Owner team
- Setup, managed and executed a scalable onboarding program covering both business perspective (KPIs) and technical integration and enablement
- Public speaker at conferences in the DACH region like bettercode, infodays and BATBern
Discover over 15,000 top freelancers
Statistics of experts using AES
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
2.1 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Healthcare
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
77%
Master's degree or higher
46%
Doctorate
15%
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
AES in practice
AES, or Advanced Encryption Standard, is the common symmetric encryption standard used to protect data at rest and in transit. Companies use it for file protection, database fields, backups, device storage and secure messaging. It is the baseline when a system needs fast encryption without complex key exchange.
Where it is used
- Application data encryption
- Backup and archive protection
- Disk and file encryption workflows
- Secure payload handling in APIs
- Password-adjacent secret storage and token protection
Strong experts know where AES belongs in the architecture and where it does not. They choose the right mode, manage keys carefully and avoid weak custom wrappers around the cipher.
Skills that matter
Good AES specialists work with the broader crypto stack, not just the algorithm itself. They understand TLS, PKI, key management, HSMs, secure random generation and safe rotation patterns.
They also read code across Java, Python, Go, C# and similar environments, because AES often appears inside product code, backend services and platform tooling. Rijndael may come up in older documentation, but AES is the name most teams use today.
When freelancers help
Companies bring in freelance expertise when encryption is already part of the product, but the design needs review or the implementation needs hardening. That includes audits, migrations, incident follow-up, cloud security work and support for regulated products.
In Germany, this often means working with teams that need clear documentation, careful handover and English or German collaboration depending on the project setup. Remote work is common, but on-site support can help during sensitive reviews.
What good work looks like
A strong expert makes the crypto easy to trust and hard to misuse. They document key lifecycles, confirm algorithm and mode choices, test interoperability and check that secrets never leak through logs or error paths.
They also know the difference between secure implementation and mere use of a library call. That is what separates a working AES integration from one that quietly creates risk.
Deliverables and outcomes
Typical deliverables include encryption design notes, code changes, review findings, secure configuration guidance and support for rollout. In larger systems, the work may also cover cloud storage settings, mobile app protection, backup policies and migration away from weak legacy ciphers.
The best experts leave teams with a clear operating model for AES, not just a passing implementation. That makes future maintenance simpler and security decisions easier to review.
Frequently asked questions
Key details about AES, drawn from the questions we get asked most.
AES is used to protect stored data, files, backups, database values and sensitive payloads in transit. Teams choose it when they need fast symmetric encryption with a widely reviewed standard. It is often part of a larger security design that also includes key management and transport security.
AES is based on the Rijndael cipher, but the standard is more specific than the original algorithm family. In practice, most teams mean AES when they talk about the modern standard used in products and security controls. Older material may still say Rijndael, especially in legacy code or documentation.
AES serves a different role from RSA. AES is symmetric encryption for data itself, while RSA is usually used for key exchange, signatures or other public-key tasks. TLS is the transport protocol that often uses AES or other ciphers underneath to protect network traffic.
A strong AES specialist usually understands key management, secure storage, TLS, PKI and basic application security. They should also be comfortable with code review and with checking how secrets move through logs, configs and cloud services. In many projects, HSM or KMS experience is a plus.
A small integration may need only focused implementation support, but a broader AES project needs someone who has handled modes, padding, key rotation and operational controls before. If the work touches regulated data, legacy systems or multiple services, you want proven security judgment rather than general coding ability. The hard part is usually not the cipher call itself, but the surrounding design.
Yes, most AES work can be done remotely, especially code review, design review and implementation support. For sensitive systems, some companies in Germany prefer an on-site kickoff or controlled access during audit phases. The right setup depends on confidentiality, tooling and internal process.
Look for clear explanations of modes, key handling and failure cases in AES implementations. Good experts can describe past work on encryption boundaries, not just say they used a library. Strong signs include careful documentation, practical testing and a focus on how the system behaves under real operational conditions.
Ask how the expert handles key lifecycle, mode selection, IV or nonce usage and secret storage in AES work. You should also ask where encryption sits in the architecture and how they prevent misuse by other teams. The best answers are concrete and tied to your system, not generic security language.
The average hourly rate of freelancers in Germany who have used AES in their recent projects is 90 €, which corresponds to a daily rate of about 719 € based on an 8-hour working day.
Of the freelancers in Germany who have used AES in their recent projects, 77% hold at least a Bachelor's degree, 46% hold at least a Master's degree, and 15% hold a doctorate.
On average, freelancers in Germany who have used AES in their recent projects have 23 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 (33%).
The most common industries among freelancers in Germany who have used AES in their recent projects are Information Technology (83%), Manufacturing (61%), and Healthcare (56%).
The most common business areas among freelancers in Germany who have used AES in their recent projects are Information Technology (89%), Product Development (83%), and Project Management (72%).
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
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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Philipp Thomaschewski
FRATCH CEO
