CSV Experts in Hamburg
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Meet FRATCH Experts in Hamburg, who have recently used CSV
Manfred Böttcher
Last position:
Interim Manager Managing Director
- Optimization of business results and expansion of sales activities
- Responsible for personnel organization
- Introduction of a document management system (DMS)
- Introduction and optimization of the ERP, CMS and CRM landscape
- Introduction of digital signatures
- Increase in revenue, reduction in costs and increase in EBIT
Thomas Wittlinger
Last position:
Chief Product Officer at OWNLY FinTech GmbH
Freelance work for a large German family office
Built and further developed a modular B2B SaaS platform for professional wealth management and family offices, alongside freelance delivery of production-ready AI, data management, and automation solutions for the wealth management sector.
- Developed an AI governance framework for regulated finance and asset management workflows, aligned with DORA, BaFin-related governance expectations, and data protection requirements, including role definitions, access levels, and decision rules.
- Designed an agentic system with a locally operated open-source language model, including Qwen2.5 via Ollama, for secure querying of an asset database through text-to-SQL-to-text workflows.
- Built AI-supported analysis and reporting capabilities that generate structured answers, tables, and charts from asset data, with domain validation through resolver logic and RAG elements.
- Developed production-grade data import workflows for financial service provider data from CSV, PDF, and API sources, including validation, plausibility checks, and reconciliation with existing asset data.
- Solved the asset matching problem without a cross-system primary key through multi-stage validation rules and human-in-the-loop approvals.
Results:
- Secured EUR 250,000 in SaaS revenue in 2024, exceeding the forecast by 20%.
- Acquired family office clients with EUR 1.6bn in assets under management.
- Reduced manual effort for the largest client by approx. 3 days per month through automated data import and reconciliation processes.
- Reduced operational error risk through structured data validation, multi-stage asset matching, and human-in-the-loop approvals.
Jan Gleske
Last position:
Interim Senior Application Owner for Pricing, Forecasting and Prognosis Solutions at International energy trading company
- Collaborated closely with key users, business analysts and product owners to understand requirements, define priorities and derive solutions
- Managed external service providers
- Oversaw and executed updates, patches and release management
- Handled incident, problem and change management according to ITIL
- Analyzed and evaluated incidents and changes for operational impact and business processes
- Monitored systems and interfaces, ensuring IT security and compliance requirements
- Supported IT planning, cost monitoring and contract management
- Created and executed tests for maintenance and projects
- Assisted in designing technical solutions and contributed to projects such as IT landscape harmonization and modernization
- Independently led operations-related projects and continuously optimized processes
- Achieved significant cost savings through supplier negotiations, rightsizing and decommissioning of legacy systems
- Technologies: Azure DevOps, ServiceNow, icinga, metalogic mPE/mPX, FIS, inubit, Oracle, LeanIX, One Identity, Confluence, Copilot, XML, JSON, SQL, RabbitMQ, Python, BPMN, OKR, ITIL, Kanban
Peter Neumann
Last position:
Pilot testing AI tools & sabbatical for house renovation
- Pilot testing local AI environments to explore local AI use cases and cloud-based AI solutions
- Evaluation of AI tools and techniques
- Use of local AI tools with own data sovereignty
- Prompt engineering
- Creation of example environments for speech-to-text, text-to-speech, text-to-image, text-to-video, and image-to-video
Tools: Grok, Perplexity, ChatGPT, Elevenlabs, Github, Ollama, HuggingFace, Open WebUI, Faster Whisper, LibreTranslate, WSL, Docker Desktop, Shotcut, Audacity, Sound eXchange, Ffmpeg, Coqui TTS, Pinokio, Stable Diffusion Web UI, ComfyUI, OWL, Void Editor
Dennis Kürschner
Last position:
IAM Engineer at dmTECH GmbH
- Migration of POS and back-office systems in the IAM environment
- Deployment using Intragen Deployment Manager and partial rollout planning with Test Accelerator
- Implementation and extension of the sync project (data copy) for working copies at branches for special hardware
- Migration and support of the SuccessFactors integration with the IAM system; switch from the old data import to the new SuccessFactors interface
Marcel Seifert
Last position:
Lead Developer / Software Architect at Rezeptprüfstelle Duderstadt GmbH
Responsible for the redevelopment of a billing and validation software for prescriptions to fully check and analyze e-prescriptions for correctness (content, billing)
System consists of multiple contexts running as services (Docker containers):
Checking and processing data deliveries via FTP and email
Management of invoicing, clearings, deductions and offsets
Management and execution of validation rules and test sets
Analytics based on Metabase
Developer Stack: Kotlin, Vue 3 / Vuetify 3, ANTLR, Spring Boot 3, REST API, Gradle, Docker, GitLab, PostgreSQL, Kafka, Keycloak, Scrum, Grafana, Loki, Testcontainers, Prometheus
Jens Meßinger
Last position:
Fullstack Developer / Team Lead at Self-employed (Meßinger & Rantzuch GbR)
- Provided fullstack web development as a new development and replacement of existing desktop and web applications for an ERP solutions provider in the education sector
- Analyzed and redesigned development processes and collaboration in distributed teams
- Responsibilities included team leadership, conceptual design, architecture, implementation, DevOps and consulting
- Technologies: C# & .NET (ASP.NET 7), Angular 14, JavaScript/TypeScript, OData/REST, SOAP, Azure DevOps
- Integrated interfaces to educational providers and authorities
Patrick Von Oppen
Last position:
Senior Software Engineer at adesso SE
- My main task was to update and further develop the newly acquired Adesso Sports Platform
- Took over project and team leadership
- Adjusted the cloud infrastructure to reduce costs
- Led the technical takeover of the project
- Trained new employees
- Oversaw and supported mobile development
Osiozekhai Aliu
Last position:
Developer at Amorelie
- New calendar functions for the Christmas calendar
- Improved RMA handling
- Setup new Docker environment for the team
Discover over 15,000 top freelancers
Statistics of experts using CSV
Aggregated from the professional profiles of matched freelancers.
Experience
25 years (Germany: 19 years)
Position duration
1.6 years (Germany: 1.8 years)
Positions per freelancer
17 (Germany: 15)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Professional Services, Manufacturing
Certification focus areas
Project Management, Information Technology, Human Resources
Bachelor's degree or higher
67% (Germany: 87%)
Master's degree or higher
50% (Germany: 47%)
Doctorate
17% (Germany: 5%)
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 97%)
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 Hamburg 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 Hamburg using CSV
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
CSV files
CSV, short for comma-separated values, is a simple text format for structured data. It is widely used to move records between spreadsheets, databases, reporting tools, and custom software. In practice, comma-delimited files often need clean headers, stable column order, and clear encoding rules.
Typical work
- Export data for reporting and analysis
- Import customer, product, or order records
- Exchange data between systems and partners
- Prepare feeds for migrations and batch processing
CSV appears in finance, ecommerce, logistics, operations, and many internal tools. In Hamburg, it is common in data-heavy teams that need reliable file-based exchange across departments or with external partners.
What specialists do
Strong CSV specialists check separators, quotes, line endings, and character encoding before data moves anywhere. They also design mappings, clean messy source files, and make sure empty values, dates, and numbers are read the right way. The result is a file that imports cleanly and keeps downstream systems consistent.
Tooling around it
CSV work often sits next to Excel, Google Sheets, SQL, Python, and ETL tools. Professionals may build export scripts, transformation steps, import templates, and validation checks that catch bad rows early. They also know how CSV differs from TSV and fixed-width formats when a project needs a different layout.
When to bring in help
Companies bring in freelance expertise when imports fail, data arrives in inconsistent layouts, or a migration needs careful file handling. They also do it when internal teams need a one-time export, a recurring feed, or a clean handoff for analysts and operations staff. Remote work is usually easy; on-site support can help when source systems, business users, and file rules need quick alignment.
What good work looks like
A strong professional documents the column contract, sample records, delimiter rules, and validation logic. They test edge cases like embedded commas, quotes, blank lines, and mixed encodings. In Hamburg, that often matters for teams working with multilingual data, regional reporting, or partner files that must import without manual fixes.
Frequently asked questions
Quick answers to the questions that come up most around CSV.
CSV is used to move structured data between tools that do not share the same database or API. It is common for exports, imports, migrations, reporting, and partner data exchange. Because it is plain text, it is easy to create, read, and automate.
No. CSV stores tabular data as text, while spreadsheet files can also store formulas, formatting, sheets, and metadata. A CSV file is often opened in Excel or Google Sheets, but that does not make it a spreadsheet format. It is usually better for clean data exchange than for presentation.
A company should hire a CSV specialist when imports keep failing, column layouts change, or data needs to move between systems with different rules. They are also useful for one-off migrations, recurring feeds, and cleanup of messy partner files. Good specialists prevent silent data errors, not just file errors.
A strong CSV professional often works with SQL, Python, Excel, data validation, and ETL tooling. They should understand encodings, delimiters, quoting rules, and basic schema design. In many projects, system integration knowledge matters as much as file handling.
CSV is simpler and better for flat tables, especially when humans need to review or edit the file. JSON and XML are better when data is nested, hierarchical, or richly structured. If the source is a table and the target expects rows and columns, CSV is often the cleanest choice.
Simple exports may need only basic CSV handling, but complex imports need someone who understands file edge cases and downstream systems. The hard parts are often not the file itself, but the source data quality and the target schema. A seasoned specialist can spot problems before they become broken imports.
Yes. CSV work is often remote because the deliverables are files, mappings, scripts, and validation rules. For teams in Hamburg, remote collaboration usually works well, though on-site sessions can help when business users need to agree on field meanings or legacy export rules.
Look for someone who explains delimiter choice, encoding, quoting, and validation clearly in the context of CSV. Strong work includes sample files, test cases, and a documented import contract. The best specialists make sure the file works in the real target system, not just in a spreadsheet.
The average hourly rate of freelancers in Hamburg, Germany who have used CSV in their recent projects is 109 €, which corresponds to a daily rate of about 874 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used CSV in their recent projects, 67% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 17% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used CSV in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Hamburg, Germany who have used CSV in their recent projects are German (100%), English (100%), and Spanish (22%).
The most common industries among freelancers in Hamburg, Germany who have used CSV in their recent projects are Information Technology (100%), Professional Services (78%), and Manufacturing (67%).
The most common business areas among freelancers in Hamburg, Germany who have used CSV in their recent projects are Information Technology (100%), Product Development (89%), and Business Intelligence (56%).
Main locations of FRATCH Experts, who have recently used CSV
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 
Munich 
Frankfurt 
Stuttgart Request a free demo
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Philipp Thomaschewski
FRATCH CEO
