Refactoring Experts in Berlin
matched in minutes from over 15,000 CVsHire experts who improve legacy code, simplify complex architectures and strengthen automated test coverage. FRATCH precisely matches you with vetted, available freelancers who fit your Refactoring project quickly.
Meet FRATCH Experts in Berlin, who have recently used Refactoring
Sascha B.
Last position:
Web Developer at GxPlex
- Built a customized MediaWiki instance, including installation, MySQL database, SSL, and automatic backups
- Set up user roles (Admin, Mod, Verified, User) and a permissions system
- FlaggedRevisions for editorial review workflows · Commenting and rating extensions
Nikolai G.
Last position:
Clinical Data Manager at Dr. Falk Pharma
- Used OpenCode and AI-assisted software engineering to design, implement, refactor, test, and document an end-to-end RAW/SDTM/ADaM pipeline in R for Dr. Falk Pharma (07/2026), including metadata-driven transformations, automated validation rules and QC, traceability, and reproducible clinical outputs.
Imran A.
Last position:
Software Engineer II at LivePerson Germany GmbH
- Led development of 15+ microservices (Java 17, Spring Boot) driving customer interactions; migrated from on-prem to GCP Kubernetes, improving scalability and reducing infra cost by 20%.
- Optimized user services with CouchDB caching and API refactoring, cutting response times by 35% and enhancing customer experience.
- Implemented canary deployments, FluxCD GitOps, and CI/CD optimizations in GitLab, reducing release lead time by 25% and enabling zero-downtime rollouts.
- Set up Grafana health checks and Anodot alerts for latency, error, and throughput monitoring, reducing MTTR by 40%.
- Built secure APIs using OAuth2, DPoP, and Gatekeeper, integrated REST and GraphQL, and achieved 90%+ test coverage with unit and E2E tests.
- Mentored junior developers, promoted Agile best practices, and collaborated cross-functionally to deliver high-impact, reliable customer-facing features.
Nada S.
Last position:
Freelance Senior Frontend Engineer at Self-Employed
- Senior software engineer focused on React, TypeScript and AI-assisted product workflows
- Build frontend systems for complex SaaS products, internal tools and operational workflows
- Recent work includes AI evaluation tooling, support reliability analysis and developer-focused QA systems
- Available for freelance and contract engagements, especially remote-first projects
Alessandro L.
Last position:
Vue Frontend Engineer at Savills
- Savills is one of the world's leading property advisors with 700+ offices worldwide. In Berlin, I built core digital solutions for the valuation business, replacing legacy Access-based workflows with an enterprise-grade web app built on Vue.js.
- Frontend Architecture & Scalability: Designed scalable Vue + TypeScript frontend architecture for internal enterprise applications, integrating a Symfony backend and interactive maps.
- Legacy Modernization: Led the modernization of legacy jQuery-based systems into maintainable Vue-driven applications, improving performance, maintainability, and efficiency across business workflows.
- PDF Report Workflow Automation: Engineered Twig-based automated PDF generation pipelines that reduced manual report preparation time by ~80%, saving approximately 12h per analyst/month.
- Design System & Frontend: Built a scalable SASS-based design system using mixins, maps, functions, and reusable UI patterns for consistency and long-term maintainability.
Fernando C.
Last position:
Senior Front-End Developer at Moss
- Moss is a spend-management platform for SMEs that bundles corporate cards, web-based applications and reimbursements, AP/procurement and advanced accounting in one place.
- Splits time across Accounting, Spending and Growth tribes, handling requirements gathering, public product design, coding, testing, debugging and internal apps.
- Participates in development and maintenance of the design system/UI kit and supports tooling, documentation and developer experience.
- Builds form-heavy UIs, drawer-based editing, high-density/resilient tables with server-side filters, pagination, column configurations, CSV/Excel export and bulk operations, all wired for permissions and auditability.
- Works with complex cross-entity relationships without a single-schema solution.
- Uses React, Redux Toolkit, styled-components, react-hook-form, React PDF, Vite, Lokalise, React Testing Library and Playwright.
Julia W.
Last position:
Freelance Product Designer at B2B Web SaaS
- Prototyping the Minimum Viable Offering (MVO) for a SaaS solution for sound creation, aligned with the needs of digital and hardware designers.
- Conducting a product-market-fit analysis using global quantitative and qualitative market research
Daniel M.
Last position:
Founding Database Engineer at tonbo.io
Working on the next iteration of tonbo to make it the most flexible in-process analytical database in the market that scales and is operated with strong availability
Introduced object scope cache to the remote storage layer to avoid I/O churn
Working on refactoring WAL to support remote storage
Taking care of the health of the systems as well as designing the operational story and bringing them to production
Technologies: LSM, WAL, Arrow, Parquet, Rust
Hüseyin O.
Last position:
Interim Head of Project and Delivery Management at ELV Elektronik AG
- Development of a Target Operating Model for integrated hardware, firmware and software delivery.
- Establishment of a PDMO governance model with clear roles, responsibilities and decision rights.
- Improvement of portfolio and delivery transparency for senior management and executive management.
- Integration of a stage-gate product development process with agile software delivery.
- Redesign of release, quality, change and prioritization processes.
- Development of a scalable tooling and reporting architecture for Jira and PPM systems.
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
Daniel B.
Last position:
Senior Cloud Consultant and Developer at SDIA/Leitmotiv
- Consulting an NGO in the field of data center sustainability in publicly funded projects (BMUKN with NADIKI and Umweltbundesamt with SIEC)
- Development of Python APIs and web applications, deployment on AWS/ECS with Terraform
- Collecting power consumption metrics for servers, CPUs, GPUs running AI workloads
- Technologies used: AWS, EC2, ECS, Fargate, CloudMap, VPC, Route53, Lambda, EventBridge, CodeBuild/CodePipeline/CodeDeploy, Terraform, Docker, Linux, Bash scripting, Python, Flask, SQLAlchemy, SQL, MariaDB, InfluxDB, Telegraf, Prometheus, Zabbix, Kubernetes, Letsencrypt, certificate management
Ursula R.
Last position:
Sabbatical with Training at Own Sabbatical
Sebastian S.
Last position:
Group Product Manager – Digital Platform Discovery at SPREAD.AI
- Developed and implemented organization-wide discovery framework based on Ulwick’s Outcome-Driven Innovation; enabled 7 Product Owners to systematically identify and quantify unrealized value through shared outcome language and opportunity scoring methodology
- Transformed Product Owner role from backlog clerks to strategic experimenters; established dedicated time budget for autonomous hypothesis testing and discovery activities
- Rebuilt customer journey maps to start at actual user need (tool selection phase) instead of platform entry point; eliminated manual data aggregation work previously done by project teams
- Implemented OKR framework across 4 product teams; defined quarterly objectives with measurable key results (e.g., 40% reduction in manual integration effort, self-service adoption increase)
- Unified 3 separate platform roadmaps through cross-team dependency mapping and shared service agreements
- Supported enterprise sales cycle with ROI modeling and technical due diligence for automotive and defense customers
Daniel S.
Last position:
Engineering Leader & AI-Assisted Developer at Independent · Building with AI
- Building a full-stack e-commerce product using AI-assisted development, deliberately returning to hands-on engineering to validate how AI changes software development workflows and team dynamics.
- Exploring VP Technology, Head of Engineering, and Director of Engineering opportunities where hands-on AI experience meets organisational scaling expertise.
- Open to advisory conversations on AI-augmented engineering teams, technology strategy, platform architecture, and organizational design.
- No registered business. No commercial activity.
Hendrik W.
Last position:
Software Test and Maintenance Support at Anton Paar ProveTec GmbH
- Add/create test specifications
- Conduct regression tests
- Conduct release tests
- Analyze Jira tickets
- Identify software defects and fix them with C#
Discover over 15,000 top freelancers
Statistics of experts using Refactoring
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.7 years (Germany: 2.9 years)
Positions per freelancer
12 (Germany: 13)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Education, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
96% (Germany: 89%)
Master's degree or higher
48% (Germany: 53%)
Doctorate
4% (Germany: 8%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
English, German, Russian
Speak two or more languages
97%
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 Berlin 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 Berlin 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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Refactoring 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 (100%)
- Education (49%)
- Banking and Finance (49%)
- Retail (46%)
- Professional Services (37%)
- Manufacturing (34%)
- Media and Entertainment (34%)
- Healthcare (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Refactoring means
Refactoring is the disciplined improvement of existing source code without changing its observable behavior. Experts restructure tangled logic, remove duplication and clarify responsibilities while keeping tests and business outcomes intact. Code refactoring makes future changes safer and easier to review.
Where it is used
Companies use Refactoring when a codebase has become difficult to change, test or operate. Typical work includes:
- Splitting large classes and methods into focused components
- Removing duplicated logic and obsolete dependencies
- Improving application boundaries and data flows
- Preparing legacy systems for new features or integrations
This work appears in web applications, APIs, mobile backends, embedded software and data platforms.
Ecosystem and methods
Refactoring is closely tied to unit, integration and regression testing. Professionals work with IDE refactoring tools, static analysis, linters, formatters, code review workflows and version control. They may apply patterns such as extraction, composition, dependency inversion or strangler-fig migration alongside languages and frameworks already used by the team.
When companies need help
Freelance expertise is useful when delivery slows because every change risks a regression. It also helps during modernization, platform migration, team handover or a major product extension. In Berlin, remote collaboration is common, while on-site work can support workshops, pairing and close coordination with product teams.
What strong experts deliver
Good professionals begin with a safe baseline: they understand behavior, map dependencies and agree on measurable boundaries before changing code. They make small, reversible changes, keep tests meaningful and explain trade-offs clearly. Strong deliverables can include a prioritized improvement plan, focused pull requests, updated tests, architecture notes and practical guidance for the permanent team.
How to assess quality
Look for evidence of improving real systems rather than only rewriting code to personal preferences. Ask how the expert handles missing tests, database changes, release risk and conflicting priorities. Useful signals include clear before-and-after reasoning, incremental commits, automated verification and respect for the existing domain. The best Refactoring work leaves the system easier to understand without hiding behavior changes or creating unnecessary abstraction.
Frequently asked questions
Questions about Refactoring? Start with the answers below.
Refactoring improves the internal structure of working software without intentionally changing its external behavior. It is used to reduce complexity, remove duplication, improve testability and make future features safer to deliver.
Refactoring changes an existing codebase in small, controlled steps while preserving behavior. A rewrite replaces larger parts of the system and can offer a cleaner foundation, but it also carries greater migration, knowledge-transfer and release risk.
Refactoring works best alongside automated testing, version control, code review and static analysis. Depending on the system, useful adjacent skills include database design, API versioning, observability, continuous delivery and legacy migration planning.
Refactoring in a small, well-tested module may need focused specialist support, while a distributed or poorly documented system demands deeper experience. The right professional should be able to trace dependencies, assess regression risk and choose safe increments rather than applying broad changes immediately.
Refactoring is often well suited to remote work because analysis, pairing, reviews and incremental changes can happen in shared repositories. Clear access, written decisions, reliable tests and regular technical discussions are important; Berlin teams may add on-site workshops when domain knowledge or coordination needs are high.
Refactoring quality is shown by clearer structure, preserved behavior and lower change risk, not by the volume of edited code. Review the test strategy, commit history, rationale for each change and whether the result reduces complexity without adding unnecessary layers.
Refactoring may not be the first choice when the system is being retired, its behavior is fundamentally wrong or its architecture cannot support the intended product. A professional should compare incremental improvement with replacement, isolation or a targeted migration before recommending a path.
Refactoring needs a clear definition of preserved behavior, delivery constraints and acceptable risk. Freelancers should ask about test coverage, release practices, critical workflows, ownership, known defects and the team’s preferred review process before proposing an improvement plan.
The average hourly rate of freelancers in Berlin, Germany who have used Refactoring in their recent projects is 96 €, which corresponds to a daily rate of about 771 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Refactoring in their recent projects, 96% hold at least a Bachelor's degree, 48% hold at least a Master's degree, and 4% hold a doctorate.
On average, freelancers in Berlin, Germany who have used Refactoring in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Berlin, Germany who have used Refactoring in their recent projects are English (97%), German (94%), and Russian (20%).
The most common industries among freelancers in Berlin, Germany who have used Refactoring in their recent projects are Information Technology (100%), Education (49%), and Banking and Finance (49%).
The most common business areas among freelancers in Berlin, Germany who have used Refactoring in their recent projects are Information Technology (100%), Product Development (97%), and Project Management (66%).
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.
Hamburg 
Munich 
Frankfurt 
Stuttgart 
Dusseldorf 
Nuremberg Countries:
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