Internationalization Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used Internationalization
Marc Smyk
Last position:
Fullstack Developer at PLANT-MY-TREE
PLANT-MY-TREE®-per-order
The application enables Shopify merchants to automatically place tree-planting orders for every incoming order. By integrating ecological contributions directly into the purchase process, the manual effort for tracking and billing reforestation initiatives is eliminated. The system increases transparency for end customers through real-time visualizations of the ecological impact directly in the storefront. The architecture is based on a modular monolith with Spring Boot in the backend and an integrated React app inside the Shopify admin area. The solution uses webhooks to capture order data in an event-driven way and integrates the weclapp ERP system for automated monthly invoicing. An app proxy mechanism provides dynamic statistics such as CO2 compensation and planted trees without any performance loss for the merchant shop.
Tasks:
- Design of the modular software architecture based on Spring Modulith to ensure high maintainability
- Development of the event-driven business logic for evaluating Shopify orders via webhooks
- Implementation of automated invoicing by connecting the weclapp REST API
- Building the frontend using React Router and Shopify App Bridge for native integration
- Design of the database model and implementation of the persistence layer with JPA/Hibernate and Prisma
- Integration of internationalization processes for global use in the frontend and email communication
- Automation of deployment processes using Docker and GitLab CI/CD
Project skills: Java 25, Spring Boot, Spring Security, Spring Modulith, Hibernate, JPA, REST API, PostgreSQL, Maven, Liquibase, React, TypeScript, React Router, Vite, Node.js, Prisma, Zod, Docker, Docker Compose, GitLab CI/CD, Shopify CLI, Shopify App Bridge, Polaris, weclapp, i18next, Lombok, Vitest
Olaf Konopka
Last position:
Liquidation of a warehouse site at Cegeka
- Project plan creation and monitoring
- Coordination of necessary activities
- Regular status meetings
- Personnel planning for cut over
- Completion and handover of all trades to the end customer with documentation
Germán Restrepo Correa
Last position:
Independent Management Consultant at ResQ-Ing Consulting
Led several cross-border consulting projects in Europe with a focus on cost, process, and production optimization
Sales representation & business development:
Regional representative for Germany for SKYPRO Portugal (Corporate Uniforms) since 2024-12-01
Sales representative for Germany for ESS Moden AG (energy-saving systems) since 2023-01-01
Consulting & optimization projects:
Kögel Trailer GmbH (2023): site analysis (Turkey/EU), CAPEX modeling, site strategy
Pluss GmbH (since 2022): market entry strategy and sales development for Spain
TIGER Hebezeuge (2022): lean workshop, 5S, Kanban-based warehouse optimization
ICER Brakes, Spain (2018–2022): two new production lines, 30% cost reduction, shift planning & software development
The Vita Group, UK (2018–2021): introduction of the SQCDP process in Memmingen and Slovakia
Alexander Proudfoot projects:
Eberspächer, Dresden (2019): lean analysis, 15% cost savings
THK RHYTHM Automotive, Düsseldorf (2018): process time reduction of up to 20%
Florian Rubel
Last position:
Senior Fullstack Developer at Ivii GmbH
- Two-month modernization of the management UI for AI-powered cameras
- Rewrote a complex React application to Vue 3 with single file components
- Set up the core architecture of the Vue application and configured Vite, Pinia, Router, I18n, ESLint, and Prettier
- Custom integration of Leaflet to display detection zones on images
- Assisted with backend extension and authentication adjustments
Sebastian Beerendorf
Last position:
Management Consultant at Freelance
- Core-IT system assessment for a health insurance company
- Strategy development for a spectroscopy manufacturer
- Project management in the product development of a medical engineering manufacturer
- Process digitalization and development of technical interfaces for a telecommunication provider
Fatih Karakurt
Last position:
Mobile App Developer at ING Belgium
- Part of a squad focused on intensive module development and integration
- Close collaboration with other squads and teams to integrate modules and essential components
- Use of SwiftUI and the Coordinator pattern to develop clean and understandable code
- Creative collaboration with UX designers in Figma and implementation in code
- Industry: Banking
- Project language: English
- Organizational form: Kanban
- Tools: Azure, Confluence, Figma, Teams
- Team size: 40 people
- Version control: Git, GitFlow, Azure
- App Store product: ING Banking
- Programming languages: SwiftUI, Swift
- Patterns: Coordinator, MVVM
- Swift Package Manager
- Localization: Yes
- Testing: XCTest, XCUITest
Discover over 15,000 top freelancers
Statistics of experts using Internationalization
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 21 years)
Position duration
1.8 years (Germany: 3.3 years)
Positions per freelancer
11 (Germany: 10)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Healthcare
Certification focus areas
Project Management, Quality Assurance, Business Intelligence
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
60%
Certifications per freelancer
3 (Germany: 2)
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 Cologne 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 Cologne using Internationalization
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
What it covers
Internationalization, often called i18n, prepares software for multiple languages, regions, and writing systems. It shapes text handling, dates, numbers, currencies, time zones, and layout rules so products can adapt cleanly without changing core code for every market.
Common work
- Locale-aware UI labels and messages
- Plural rules and gendered text handling
- Unicode, encoding, and text direction support
- Translation file setup with gettext, ICU, or similar tools
- Region-specific formats for address, time, and currency
Tools and ecosystem
Strong specialists know the difference between internationalization and localization, and they work comfortably with libraries such as ICU, CLDR data, gettext, and framework-level message catalogs. They also understand how front-end, backend, and content systems exchange language keys, fallbacks, and translated strings.
When teams bring help
Companies usually bring in freelance expertise when a product enters new markets, inherits hard-coded text, or needs a better translation pipeline. In Cologne, this often matters for teams serving German and international users at the same time, where language quality and consistency affect trust.
What good work looks like
Good internationalization is quiet. Text expands without breaking layouts, dates follow the user’s region, and translations can be updated without risky code changes. Strong professionals also plan fallback behavior, identify untranslated content, and keep product logic separate from copy.
Signs you need it
- The same screen shows mixed languages
- Dates, decimals, or currencies appear wrong
- Right-to-left or non-Latin scripts break the layout
- Translation files are hard to maintain
- New markets require repeated code changes
A solid internationalization setup reduces defects, speeds release work, and makes later localization much easier. It also helps product, design, and engineering teams share one clear structure for every language version.
Frequently asked questions
Curious about Internationalization? Here are the answers that come up again and again.
Internationalization is the work of preparing software so it can support multiple languages, regions, and writing systems without major rewrites. It covers text expansion, locale-aware formatting, encoding, plural rules, and layout choices that make later localization practical.
i18n is the foundation; localization is the market-specific adaptation built on top of it. Internationalization handles the technical structure, while localization changes translated text, cultural formats, and sometimes imagery or content choices for a specific audience.
Internationalization is common in websites, mobile apps, SaaS tools, customer portals, and internal business systems. It is especially important when a product must support multiple languages, currencies, time zones, or right-to-left scripts.
A strong Internationalization specialist usually knows localization workflows, Unicode, ICU or gettext-style tooling, and the framework your product uses. Useful extras include content modeling, translation key management, accessibility, and careful front-end layout work.
Internationalization work can start with a small audit, but the right depth depends on how much of the product is hard-coded. A freelancer should review the UI, data model, translation pipeline, and release process before changing the implementation.
Internationalization is usually well suited to remote work because most tasks happen in code, content files, and review flows. On-site time can help when teams need close collaboration with product, design, and content people around language decisions, including in Cologne.
Internationalization quality shows up when the product behaves correctly across languages without special fixes. Look for clean separation between text and code, correct fallback logic, consistent locale handling, and tests or review checks for plural forms and formatting.
Internationalization often goes wrong when teams hard-code copy, assume English word order, or ignore text expansion. Another common issue is treating translation as a final step instead of building locale support, message keys, and formatting rules from the start.
The average hourly rate of freelancers in Cologne, Germany who have used Internationalization in their recent projects is 108 €, which corresponds to a daily rate of about 860 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Internationalization in their recent projects, 100% hold at least a Bachelor's degree and 60% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used Internationalization in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Cologne, Germany who have used Internationalization in their recent projects are German (100%), English (100%), and Spanish (17%).
The most common industries among freelancers in Cologne, Germany who have used Internationalization in their recent projects are Information Technology (83%), Banking and Finance (50%), and Healthcare (50%).
The most common business areas among freelancers in Cologne, Germany who have used Internationalization in their recent projects are Information Technology (83%), Product Development (67%), and Quality Assurance (67%).
Main locations of FRATCH Experts, who have recently used Internationalization
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.
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Hamburg 
Munich 
Frankfurt 
Dusseldorf 
Essen Request a free demo
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Philipp Thomaschewski
FRATCH CEO
