CSV Experts in Berlin
for clean data flows, matched in minutes with vetted and available professionalsHire experts who design reliable CSV imports, exports and validation workflows across business systems, reporting tools and data pipelines. FRATCH matches you quickly and precisely with vetted, available freelancers suited to your requirements.
Meet FRATCH Experts in Berlin, who have recently used CSV
William N.
Last position:
Power BI Solutions Architect/Engineer & AI Consultant at AVERDUNG GmbH
- Redesign of the company’s BI infrastructure: replacement of a fragmented landscape of manually maintained Excel solutions and CSV imports with a centralized Power BI environment using a unified data model as the company-wide single source of truth
- Consolidation of previously isolated reporting logic in a central semantic model – elimination of redundant files, manual data transfers and inconsistent metrics across departments
- Forecasting & Planning: Design and implementation of company-wide liquidity planning in Power BI – from business logic to a fully automated, data-source-driven planning model replacing the previous manual Excel process; enabling rolling forecasts and continuously up-to-date cash flow transparency for management
- Optimization of existing Power BI dashboards in terms of performance, structure and analytical value using an AI-native approach
- Analysis and improvement of the data model, including data quality analyses, data cleansing and consistent modeling using Star Schema, DAX and Power Query
- Incident & Anomaly Analysis: Identification, investigation and explanation of data anomalies, including root-cause analysis and specific recommendations for action
- AI Solution Architecture: Connecting Business Central and Power BI to LangDock via MCP (Model Context Protocol) for AI-supported data usage
- Development of a historical data layer as a basis for trend and time-series analyses
- AI-supported automation: Design and development of AI skills, agents, loops and processes for the automated analysis and interpretation of reports
- Automated reporting workflow: Setup of scheduled, automated email delivery of AI-generated analyses and recommendations to stakeholders
- Gathering and documentation of business requirements and coordination with business departments and IT as part of requirements engineering / product owner activities
- Breaking down overall requirements into clearly defined work packages and tasks
- Definition, prioritization and management of milestones throughout the entire project lifecycle
Tools: POWER BI, M365, Copilot Studio, MIRO, Microsoft Business Central, Microsoft Fabric, Claude AI, ChatGPT, LangDock, MS VS Code
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.
Syed A.
Last position:
Senior Software Engineer at Giant Eagle
- Designed and developed AI-powered document processing solutions using Python, OCR, NLP, and Large Language Models (LLMs) to automate extraction, validation, and classification of financial documents, reducing processing time by 75%.
- Built intelligent multi-stage workflow automation pipelines integrating AI services, machine learning models, and enterprise systems to streamline financial operations and improve data quality.
- Developed reusable AI-driven transformation frameworks capable of processing structured and unstructured document formats (XML, CSV, JSON, TXT, DAT) and normalizing them into unified business schemas.
- Designed and developed Python-based REST APIs and backend services supporting enterprise finance applications and high-volume data processing workloads.
- Built scalable data synchronization pipelines between Oracle CFIN and SQL databases, incorporating machine learning models for cash-flow forecasting and AP/AR anomaly detection.
- Architected and deployed Apache Airflow workflows to orchestrate AI-powered data pipelines, automating end-to-end processing from document ingestion through financial system integration.
- Led the migration of critical enterprise integrations from MuleSoft to Python-based services, improving maintainability, performance, and operational flexibility while preserving complete data integrity.
- Managed the full API lifecycle including solution design, implementation, documentation, deployment, monitoring, and production support for mission-critical financial systems.
- Collaborated directly with finance stakeholders to identify business challenges, define solution requirements, and deliver measurable operational improvements through automation and AI-driven workflows.
- Worked closely with cross-functional engineering and business teams to rapidly iterate on features, improve processes, and drive successful adoption of AI-enabled solutions.
- Provided technical leadership through architecture reviews, technology decisions, code reviews, and engineering best practices across integration and automation initiatives.
- Mentored developers, established coding standards, and contributed to improving software quality, maintainability, and delivery effectiveness across projects.
- Provided production support during critical month-end and quarter-close financial processes, performing root-cause analysis and implementing rapid fixes to ensure system reliability and data accuracy.
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.
Ola V.
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Andrej B.
Last position:
Lead UX Design Engineer at Journexx GmbH
- Leading, designing, and developing the UX and UI strategy and implementing it for the platform
- Creating style guides and design systems in Figma
- Creating a generic end-to-end layout structure for big data cockpits in Figma and Sass (CSS, design tokens)
- Workflows, wireframes, user research, and rapid prototyping
- Preparing and facilitating workshops and discoveries
- Integrating designs and layouts into existing frontend templates
- Prototyping (low-/mid-/high-fidelity) of various apps for journalists and publishers
- Developing showcases for iOS and Android, design thinking, qualitative and quantitative user testing, and A/B testing
- Frontend development in close collaboration with design teams
- Active change management in the publishing and journalism sector and with stakeholders
- Company-wide communication and info hub for teams
- Raising awareness and getting buy-in for digitalization and new products
- Creating concepts and designs for gamification elements on the platform
- Convincing major industry players (e.g., WAN-IFRA) about new concepts and revenue streams
- Developing new cloud-native apps and revenue strategies
- Preparing and creating various materials for change processes
- Creating presentations, mini-apps, and info materials to support change campaigns
- Leading a total of three teams
Fady K.
Last position:
Senior Software Developer / Tech Lead at Specific Objects Technologies GmbH
- Project 1: Multi-Tenant SaaS Platform: Data Integration & Pricing Management
- Objective: New development of ELT pipeline (replacement for Java 6 legacy), integration of heterogeneous source systems (CSV, Excel, Email, external DBs), event-sourcing for complete auditability, multi-tenant architecture for tenant-capable data processing
- Challenge: Processing millions of records daily, audit compliance, data isolation between different tenants
- Solution: Stakeholder workshops for requirements analysis, event-driven architecture with Axon Framework and Apache Kafka, AWS services (EC2, S3, Lambda, SQS, API Gateway) for cloud integration, PostgreSQL with tenant-specific schemas for multi-tenant data isolation, REST API design with Spring Boot for external system integrations, comprehensive testing strategy (JUnit, Spring Test, Postman, PACT, ArchUnit)
- Results: ELT performance improved from 30+ min to 1-5 min; 2-3 hours daily saved through workflow automation; 10-20 hours/week saved through event-sourcing auditability; 100% audit compliance; secure multi-tenant data isolation for 10+ tenants
- Project 2: Multi-tenant CRM System Modernization
- Objective: Migration of CRM system (20+ years PHP/MySQL) to Java microservices, Domain-Driven Design implementation, establishment of Test-Driven Development, multi-tenant-capable SaaS architecture for multiple customer tenants
- Challenge: Remodeling complex business logic, no existing test culture, scalable tenant management with data isolation
- Solution: Comprehensive testing strategy (JUnit, Spring Test, Postman, PACT, ArchUnit), multi-tenant architecture with tenant-specific databases, REST API design with Spring Boot for cross-tenant integration, Kubernetes and Docker for container orchestration
- Results: 2× performance improvement; deployment time reduced from 40+ min to 5-7 min; migration without production outages; scalable multi-tenant solution for 15+ customer tenants
- Technologies: Java, Spring Boot 3.x, Angular, Apache Kafka, AWS (EC2, S3, Lambda, SQS, API Gateway), PostgreSQL, Axon Framework, Kubernetes, Docker, GitLab CI, REST API
Ola A.
Last position:
Freelance BI Consultant & Analyst at DocMorris
- Data / product analysis & visualisation in Tableau Desktop
- Stakeholder Management
Jürgen G.
Last position:
Data Analysis & Harmonization at Various clients/consulting partners
- Analysis and harmonization of master data
- Analysis of product and customer portfolios and KPI identification
- Preparation and harmonization of raw material master data for migration
- Marketing and customer support as well as organization at real estate agencies
Srikar K.
Last position:
Application Developer at Vavili Technologies
- Played a key role in developing templeswiki.com as a Full Stack Developer, building and optimizing multiple pages and microservices to ensure a responsive and user-friendly experience.
- Developed an interactive chatbot integrated with Natural Language Processing (NLP) to enhance user engagement and streamline customer interactions within the application.
- Built a robust ETL pipeline using Python to generate multi-language labels, facilitating seamless content translation across languages.
- Led the QA team by crafting a comprehensive test plan to rigorously test and ensure the application's smooth operation, alongside developing an in-house attendance recording tool to improve organizational efficiency.
Varsha S.
Last position:
Embedded Engineer (Working Student) at Lautsprecher Teufel GmbH
- Proficient in using JIRA for sprint planning, bug reporting, and task management.
- Modified and enhanced embedded C/C++ firmware code on STM32, ESP32 and ARM-based MCUs and SoCs.
- Debugged and fixed embedded software issues; managed code with Git/GitLab (commits, merge requests, reviews).
- Created and maintained test cases and test plans using Testmo.
- Debugged and validated firmware builds; provided detailed bug reports.
- Executed manual tests across development stages.
- Familiar with RTOS concepts and implementation, including task scheduling and interprocess communication for real-time embedded systems.
- Managed planning and execution of acceptance and regression testing.
- Supported mobile app and system-level testing for audio streaming device.
- Tested communication protocols (HTTP, I2C, SPI, UART) and API interactions.
- Used terminal tools and SSH to debug embedded Linux systems.
Karthikeyan A.
Last position:
Cryptocurrency Price Prediction using Machine Learning Algorithms
- Designed, implemented, and evaluated multiple machine learning models (e.g., regression, time series, neural networks) to forecast cryptocurrency prices, incorporating data preprocessing, feature engineering, and model optimization for improved predictive accuracy.
- Performed in-depth data exploration and visualization on large cryptocurrency datasets, using tools like Python and libraries such as Pandas and Matplotlib to identify trends and patterns.
Boris M.
Last position:
ITZBund
- eInvoicing project
- SAP ABAP OO development
- workflow
- OpenText
Discover over 15,000 top freelancers
Statistics of experts using CSV
Aggregated from the professional profiles of matched freelancers.
Experience
14 years (Germany: 19 years)
Position duration
1.6 years (Germany: 1.7 years)
Positions per freelancer
16 (Germany: 15)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Business Intelligence, Human Resources
Bachelor's degree or higher
100% (Germany: 84%)
Master's degree or higher
55% (Germany: 46%)
Doctorate
9% (Germany: 4%)
Certifications per freelancer
2 (Germany: 4)
Most common languages
English, German, French
Speak two or more languages
100% (Germany: 96%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Berlin are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Berlin 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
CSV 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%)
- Retail (54%)
- Banking and Finance (46%)
- Automotive (38%)
- Energy (38%)
- Manufacturing (38%)
- Healthcare (31%)
- Transportation (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What CSV is
CSV, short for Comma-Separated Values, is a plain-text format for tabular data. Each row represents a record, while separators divide fields. Despite its simplicity, reliable CSV handling requires careful decisions about encoding, quoting, line breaks, delimiters and missing values.
Where it is used
CSV supports data exchange between systems that do not share a native integration. Companies use it for operational imports, customer and product records, financial reporting, catalog updates and migration work.
- Import records into business software
- Export reports for analysis and sharing
- Transfer data between legacy and modern systems
- Prepare files for audits or bulk updates
Tools and ecosystem
CSV work often connects spreadsheets, databases, APIs and cloud storage. Strong specialists understand Excel and Google Sheets behavior, SQL exports, Python or JavaScript processing, command-line utilities, and validation tools. They also account for formats such as TSV, JSON and XML when choosing an exchange method.
When expertise helps
Freelance expertise is useful when files fail during import, columns shift, characters become unreadable or records are duplicated. It also helps when a recurring exchange needs automation, monitoring and clear ownership instead of manual spreadsheet handling.
- Diagnose delimiter, encoding and quoting errors
- Map columns between source and target systems
- Clean, transform and validate incoming files
- Automate repeatable import and export jobs
Reliable delivery
Quality CSV work starts with a documented schema and representative sample files. Professionals test empty fields, embedded separators, special characters, duplicate records, date formats and unexpected column changes. They make failures visible and provide safe rollback or correction steps.
Working with Berlin teams
Berlin companies may need CSV specialists for e-commerce, logistics, finance, media and public-sector workflows. Remote collaboration works well when file samples, access rules and acceptance criteria are clear; on-site sessions can help when systems, stakeholders or language expectations require close coordination.
Frequently asked questions
Need clarity? These are the questions we hear most often about CSV.
CSV is used to store and exchange tabular data in a simple text format. It is common for imports, exports, reporting, migrations and transfers between systems that lack a direct integration.
CSV is compact and easy to open in spreadsheet software, but it mainly represents flat rows and columns. JSON and XML handle nested structures and metadata better, while CSV is often the clearer choice for simple tabular exchange.
A strong CSV specialist usually understands SQL, spreadsheets, APIs, databases and scripting with Python or JavaScript. Knowledge of encoding, schema design, data validation and formats such as JSON or XML is also valuable.
A straightforward export may need only focused file-format knowledge. Complex work involving multiple sources, automation, sensitive records or unreliable legacy files calls for a professional who has handled data mapping, validation and failure recovery.
Yes. CSV projects are often suitable for remote collaboration because sample files, schemas and test results can be shared securely. Berlin teams should define access controls, communication routines and whether German-language coordination is required.
A CSV specialist is useful when manual edits create recurring errors, files are too large or imports require repeatable transformations. Professional support can turn an unreliable spreadsheet process into a documented and testable workflow.
Ask for a clear schema, validation rules and test cases covering separators, quotes, encodings, empty values and duplicate records. Good CSV work also explains how errors are reported and how changes to source columns are detected.
Clarify the source and target systems, delimiter, character encoding, column definitions, expected volume and treatment of missing or invalid values. A CSV professional should also confirm sample files, security restrictions, acceptance tests and who approves the final output.
The average hourly rate of freelancers in Berlin, Germany who have used CSV in their recent projects is 91 €, which corresponds to a daily rate of about 727 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used CSV in their recent projects, 100% hold at least a Bachelor's degree, 55% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Berlin, Germany who have used CSV in their recent projects have 14 years of professional experience, with a single engagement typically lasting around 1.6 years.
The most common languages among freelancers in Berlin, Germany who have used CSV in their recent projects are English (100%), German (92%), and French (23%).
The most common industries among freelancers in Berlin, Germany who have used CSV in their recent projects are Information Technology (100%), Retail (54%), and Banking and Finance (46%).
The most common business areas among freelancers in Berlin, Germany who have used CSV in their recent projects are Information Technology (100%), Product Development (77%), and Business Intelligence (69%).
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.
Hamburg 
Munich Request a free demo
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Philipp Thomaschewski
FRATCH CEO
