Refactoring Experts in Stuttgart
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Meet FRATCH Experts in Stuttgart, who have recently used Refactoring
Matthias Spiller
Last position:
Software Developer and Consultant at CLADE GmbH
- Analysis of the existing CAN communication between microcontrollers
- Analysis of the sensors used and the measured values collected
- Planning the CAN messages for transmitting the measured values
- Iterative adjustment of the microcontroller code to the new CAN messages
- Cross-compilation from x64 to arm64
German Rauhut
Last position:
Freelance Technical Product Owner & AI Product Builder at Neckarshore AI / Freelance
Two complementary tracks: (a) building my own AI products and open-source tools under the Neckarshore AI brand, with a focus on AI-supported multi-agent development processes and documentation automation; (b) freelance support for industrial, logistics, and financial companies in IT-related transformation projects.
Current product portfolio under the Neckarshore AI brand:
- Omnopsis Documenter — AI-powered documentation engine: generates compliance, technical, and release documentation from Git, Jira, and Confluence. 500+ automated tests, 100+ API endpoints, RBAC, monitoring stack.
- TrustScope — trust analysis for public GitHub repos: deterministic three-pillar report (Security & Supply Chain, Governance, Community) based on OpenSSF Scorecard, with constructive fix suggestions instead of a single misleading score.
- md-viewer — dependency-free Markdown viewer for macOS (Finder Quick Action) and web, split view of rendered document and raw text.
- Obsidian Vault Autopilot — AI-supported vault automation for Obsidian × Claude Code: sorts the inbox, renames notes, enriches frontmatter.
- Phonesis Voice Bank — voice archive for families, hospices, and cultural archives (guided recordings, inheritable archive, optional voice cloning); currently in the GDPR compliance phase (Art. 9, biometric data).
- Multi-Agent Development Process — 12+ specialized agents (architecture, implementation, security, refactoring, marketing) with structured handoff protocol, parallel execution, and automated quality assurance — powers the entire product development.
- Freelance consulting: Technical Product Ownership for production, logistics, and compliance/AML systems; steering international rollouts including test, cutover, and change management.
Stack: NestJS, TypeScript, PostgreSQL, Redis/BullMQ, Next.js, Claude Code (Opus), Docker, GitHub Actions, Vercel
Lothar Hinsche
Last position:
Solution Manager for PoC investigation and for replacing and refining an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH
- Investigating the PoC and replacing and refining an existing cloud and IoT power plant control solution for certificate management of renewable energy plants (solar, wind, biomass, etc.) for the largest European renewable energy network operator, including examining the field IoT devices and their integration and network connections, aiming for automated PKI key management.
- Messaging with Kubernetes for large API-connected enterprise applications
- Risk and attack vector analysis, software quality & bug assessments
- Agile workload scheduling via Jira & Confluence
- Evaluation of pub/sub message streams for MQ and Kafka.
- Various tests with “best design approaches” for resilience patterns like circuit breaker designs, throughput measurement and monitoring, bulkhead governors – for robust EA design
- Integration of API management with IBM's API Connect to Kubernetes for platform-agnostic microservices API management designs. Google Apigee
- Solution health check approaches for load burst situations + remedy
- Research and evaluation of potential sub-service providers in the coordinating role as solution manager. CIS20 controls.
- DREAD and STRIDE security assessments.
Alban Tchuinkou
Last position:
C/C++ Developer on AIX Systems for SAP Kernel System Integration at IBM Research and Development
- AIX/Linux system administrator: deployment of LPARs (Logical Partitions) for SAP Kernel Development
- C/C++ SAP kernel development and integration to SAP HANA Database
- C/C++ programming and software integration, support for SAP kernel on AIX system; development and testing on SAP VDI
- Example: development of the ABEC Tool (AIX Build Environment Checker) to create SAP build environments for debugging process and benchmarking
- Benchmarking and test execution of SAP kernels (test from the communication to the SAP HANA Database and to SAP NetWeaver) on AIX
- Automate the SAP kernel build via Jenkins and benchmarking over crontab jobs
- New C/C++ compiler design and testing (based on Clang++ and LLVM)
- Customer ticket handling to resolve SAP kernel bugs and build failures
- SAP kernel development with Rust programming language, migrating some sub-kernel projects from C/C++ to Rust because of Rust's memory safety model, ownership system, and concurrency features
- Refactoring selected components in Rust and integrating them with existing C++ codebase via FFI
Deepak Nagarajarao
Last position:
Consultant at Advantest Europe Gmbh
- Develop hardware drivers and middleware using C++11, Java and Python
- Design of various RF features such as deembedding based on stakeholder requests
- Work with multiple teams to design drivers for multiple RF products
- Perform HW control to deliver RF signals and measure modulated response
- Develop RF drivers for generation of low noise signals to test WiFi7 products
- Use digital modulation techniques such as QAM for low level driver development
- Develop low level USB drivers for device enumeration
- Develop drivers for HW relay control of control boards for device testing
- Perform JTAG operations on devices under test
- Use network-based protocols (SFTP, UFTP, FTP, SSH) for control board communication
- Manage HW devices such as BADC and EEPROM for control board maintenance
- Utilize C++11/14/17 features, template metaprogramming and STL
- Employ multithreading for testing and control of multiple HW devices
- Develop tools for deployment of customer OS on control boards
- Perform component and integration tests using CxxTest
- Follow Scaled Agile Framework for software development
- Create detailed design documents using PlantUML
Felix Junghans
Last position:
Senior Software Engineer at PCA GmbH
- Developed three applications with Flutter (Dart), Swift (iOS), and Kotlin (Android)
- Responsible for the apps' UI/UX design
- Developed a fingerprint plugin for HidGlobal in Swift and Kotlin
- Used Riverpod and Flutter Bloc for efficient state management
- Used Hive and Isar for local data management
- Used Firebase for backend services (Firebase Cloud Messaging, Analytics, and Firestore)
- Managed code with GitLab, developed using Visual Studio Code and Xcode
Matthias Max
Last position:
Founder at CaseOS Low-Code Platform
Discover over 15,000 top freelancers
Statistics of experts using Refactoring
Aggregated from the professional profiles of matched freelancers.
Experience
21 years (Germany: 18 years)
Position duration
2.7 years (Germany: 2.9 years)
Positions per freelancer
11 (Germany: 13)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Automotive
Bachelor's degree or higher
100% (Germany: 89%)
Master's degree or higher
80% (Germany: 53%)
Certifications per freelancer
1 (Germany: 3)
Most common languages
English, German, French
Speak two or more languages
100% (Germany: 96%)
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 Stuttgart 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 Stuttgart using Refactoring
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
Clean code paths
Refactoring is the disciplined change of code structure without changing what the software does. Strong specialists use it to simplify logic, remove duplication, and make future changes safer. It is common in codebases that have grown fast and now need clearer design.
Typical work
- Break up large classes and long methods
- Rename unclear variables, functions, and modules
- Extract reusable components and services
- Reduce coupling between layers
- Preserve behavior with tests while changing structure
Tooling and practice
Refactoring is usually done alongside tests, static analysis, linters, and code review. In Java and Spring Boot projects, for example, experts often work with IDE refactor tools, build pipelines, and automated test suites. The goal is not a cosmetic cleanup. It is safer delivery.
When companies need it
Teams bring in freelance refactoring specialists when releases slow down, defects keep returning, or a legacy system blocks new work. This is also common before a migration, a platform split, or a product handover. In Stuttgart, the need often appears in software tied to manufacturing, mobility, industrial systems, and internal business tools.
What strong experts do
Strong professionals read architecture, trace dependencies, and choose the smallest change that improves the codebase. They keep behavior stable, verify edge cases, and explain trade-offs clearly. Refactoring, code refactoring, and refactor work best when the specialist can balance structure, tests, and delivery pressure.
Collaboration style
Freelance refactoring work can be remote or on-site, depending on access to the codebase, the release process, and the team’s way of working. In Stuttgart, mixed collaboration is common when domain knowledge sits with local stakeholders but implementation can happen elsewhere. Clear communication matters more than location alone.
Frequently asked questions
Before you brief your next project: the most common questions about Refactoring.
Refactoring is used to improve code structure without changing the software’s behavior. Companies use it to reduce duplication, untangle dependencies, and make future changes less risky. It is especially useful when a system still works but has become hard to extend or maintain.
Refactoring keeps the existing behavior and improves the structure step by step. A rewrite replaces the system or a major part of it, which carries more delivery risk and usually needs more time to validate. Teams often choose refactoring when the current product still contains useful logic, tests, and business rules.
A strong refactoring specialist usually understands testing, architecture, and the language or framework already used in the codebase. For backend work, that may include Spring, Java, .NET, or Python. They should also be comfortable with static analysis, version control, and reading legacy code quickly.
Refactoring work needs someone who can spot hidden dependencies and protect behavior while changing structure. Small cleanup tasks may be handled by a broad software specialist, but larger legacy systems need someone who has done this before in production code. The harder the system, the more important judgment becomes.
Most refactoring tasks can be done remotely if the specialist has secure access to the repository, test setup, and people who know the product. On-site time helps when the codebase is tightly tied to local domain knowledge or when workshop-style design sessions are needed. In Stuttgart, many teams use a mixed setup.
If small changes keep breaking unrelated parts, the system likely needs refactoring. Other signs are repeated copy-paste logic, long release cycles, unclear module boundaries, and growing fear around touching older code. When teams avoid changes because the structure is too fragile, the codebase is sending a clear signal.
Look for someone who talks about behavior safety, tests, and incremental change, not just cleaner code. A strong refactoring freelancer can explain what they will change, what they will leave alone, and how they will prove nothing broke. Good signs are clear commit history, careful naming, and practical trade-offs.
People often compare refactoring with rewriting, patching, or redesigning a module. Refactoring is the better choice when the current system still works and the business logic is worth preserving. If the architecture is broken beyond repair, a targeted rewrite may be the safer path, but it should be a deliberate decision.
The average hourly rate of freelancers in Stuttgart, Germany who have used Refactoring in their recent projects is 102 €, which corresponds to a daily rate of about 814 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used Refactoring in their recent projects, 100% hold at least a Bachelor's degree and 80% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used Refactoring in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.7 years.
The most common languages among freelancers in Stuttgart, Germany who have used Refactoring in their recent projects are English (100%), German (86%), and French (14%).
The most common industries among freelancers in Stuttgart, Germany who have used Refactoring in their recent projects are Information Technology (100%), Manufacturing (71%), and Automotive (57%).
The most common business areas among freelancers in Stuttgart, Germany who have used Refactoring in their recent projects are Information Technology (100%), Product Development (86%), and Quality Assurance (86%).
Main locations of FRATCH Experts, who have recently used Refactoring
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 
Frankfurt 
Dusseldorf 
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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We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
