DOM Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used DOM
Gerhard Kolar
Last position:
Senior Project Manager and Construction Manager at HENSOLDT Optronics GmbH
- Building the data center in Oberkochen (defense area)
- Planning the fiber optic ring, simulation of Wi-Fi coverage
- Cable routing plan for WAN and LAN cables for office and production (infrastructure)
- Adaptation of the SAP system (R3) for the Oberkochen site (software)
- IT transformation of the SAP system to SAP HANA
- Planning network infrastructure and server technologies in the SAP environment
- Pré-sales support and setting up change management
- Independent coordination of utilities according to time, budget and quality
- Mapping the project in MS Project and SERVICENow
- Development and design of hardware and software
- Demand management and portfolio management
- Building a risk register and migration plan
- Preparation of payment-supporting documents in coordination with the responsible finance and commercial functions
- Budget: 5 Mio. - 34 FTE
Rüdiger Schulz
Last position:
Full-Stack Software Engineer / Consultant for Digitalization at ARTEVENT
Designed, built, and launched an internal event planning web application used by over 100 department leads for a large event, despite having no dedicated testing phase.
Ensured smooth, failure-free operation during first production use, leading to the tool being adopted for future events.
Automated catering calculations and related workflows, significantly reducing email communication and manual computation effort for meal planning.
Managed deployment and hosting on a Linux server using Coolify, including application setup and runtime operations.
Hired and guided a communication designer on UX while independently owning all technical decisions and implementation.
Kyu-Wang Lee
Last position:
Software Architect & Lead Software Engineer at Landesamt für Steuern Niedersachsen
The goal of BIENE is to provide a uniform program for tax collection for all states.
In tax collection, the aim is to collect the assessed taxes. This includes handling due dates, documenting incoming and outgoing payments, triggering reminders or refunds. Statute of limitations and payment reminders also play an important role. All payment transactions with banks and accounting are mapped in BIENE.
Setting up the architecture and coordinating the provisioning of development and test environments at the Hanover location
Installing and configuring environments on Linux servers (Apache Kafka, PostgreSQL)
Interface tasks: coordinating and aligning the integration of software products from other departments and their test data
Upgrading application server, JDK, Maven project structure
Environment coordination and build management
Implementing external interfaces
Implementing business requirements
Designing and implementing RESTful APIs and OpenAPI specifications
Designing and implementing microservice architecture
Setting up and maintaining CI/CD pipelines
Deploying applications on OpenShift
Creating technical documentation and diagrams
Working with SQL databases (Oracle and PostgreSQL)
Setting up authentication and authorization for the application and users
Containerizing the application (automated deployment via CI/CD pipeline)
Timo Heck
Last position:
Software Developer at Continentale Krankenversicherung AG
- Implementation of a REST-based web service for querying contract, claims, customer, and sales data as part of the Dialogmanager project.
- Data release is done in compliance with CoC requirements and individual user permissions from IAM (Identity and Access Management).
- Implementation using JBoss EAP 8.1 (JakartaEE 10) and Java 21 as well as JAX-RS, CDI, Microprofile-Config, Microprofile-OpenAPI.
Minh Doan
Last position:
Project Manager / Business Analyst / Application Manager at Finance and Insurance
Introducing 5 different process applications for various teams
Release planning: scope and time management
Resource/capacity planning
Conducting sprint planning / retrospectives
Increment planning (multiple sprints)
Preparing steering committee meetings / reporting to the executive board
Coordinating / aligning with external suppliers / deliveries
Multi-project resource planning
Aligning with the business unit and development team
Identifying best practices with IBM BAW
Cost control and planning for the project team and external service providers
Collecting KPIs using LogScale
Analyzing application errors with LogScale / queries
Defining user stories / aligning requirements with the business unit and development team
Testing and defect tracking
UI/UX design of the application
Preparing and facilitating brown-paper workshop
Test concept, test data, test organization, test execution
Recording team velocity / metrics
Executing tests
Scripts for automated testing
Organizing tests with the business unit and IT
Recording and prioritizing defects
Setting up and operating the application
Setting up application monitoring with LogScale dashboards
Checking health endpoints with PowerShell
Post mortem analysis
Setting up incident management
Setting up problem management
Analyzing errors using LogScale queries and dashboard
Pre-processing data for AI
Conducting evaluation with AI language models (Meta Llama 3.3 LLM and deepset Haystack) and RAG
Installing runtime environments for LLMs (large language model)
Evaluating various LLMs
Installing RAG (retrieval augmented generation) and integrating with LLM
Extracting unstructured data with LLM and RAG
Project based on IBM BAW (Business Automation Workflow), WebSphere Liberty, Domea, d.3, REST, LogScale (formerly Humio), Swagger, PowerShell, JIRA, Confluence, Lucom Interaction Platform (LIP), Mattermost, Jabber
Manuel Wittmann
Last position:
Frontend Software Engineer at Mercedes-Benz Tech Innovation
- Developed a web component for vehicle pricing communication in an international online shop.
- Replaced an old Stencil component to create a modern, flexible, and maintainable Vue.js component.
- Implemented country-specific displays and rules to comply with legal requirements.
- Introduced modal windows and tooltips to optimize user guidance.
- Adapted the component for desktop, tablet, and mobile devices.
- Provided different views and functions for stock and configurable vehicles as well as for private and business customers.
- Implemented efficient API calls and caching mechanisms to improve performance.
Hüseyin Korkut
Last position:
Senior Full-Stack Engineer at DVAG
Architecture and implementation of a fully digitalized closing flow for managing securities contracts within the DVAG infrastructure. The platform aims for maximum user-friendliness, modular extensibility and compliant handling of sensitive data.
Implementation of a reactive UI structure with a focus on user guidance & accessibility.
Dynamic control of form and closing processes including validation logic.
Reactive state management via SignalStore (signals + selective effects).
UX optimization through adaptive components and Playwright-based UI tests.
Backend modularization to connect existing sales and contract logic.
API stability and DTO design according to Clean Architecture principles.
Collaboration with domain teams to define technical contracts and service boundaries.
Management with GitHub.
Unit tests with Jest, E2E tests with Playwright.
Code reviews, CI-integrated test execution, iterative refactorings.
Ensuring high coverage and UI stability in the closing flow.
Technologies: Angular 18, RxJS, SignalStore, HTML5, SCSS, Spring Boot, Kotlin, REST, OAuth2, Jest, Playwright, Clean Architecture.
Sridhar Huple
Last position:
SAP CX Consultant at Anonymous
- Stack: SAP Commerce 2011 (B2C).
- Migrating the data from Stibo system to SAP Commerce Cloud.
- Mapping the data from Stibo system to SAP Commerce Cloud.
- Integrating hot folders to support multiple countries and languages.
- Integrating validation tools for migrated data and generating validation reports.
José Jeria
Last position:
Freelance iOS Developer at Freelancer
PAYBACK GmbH: PAYBACK app - a loyalty bonus program and customer card that allows users to collect points.
Enhanced the application's architecture by restructuring and modularizing it.
Refactored and improved complex features using SwiftUI and The Composable Architecture.
Maintaining, bug fixing, optimizing, troubleshooting, and continuously improving the app.
Facilitating and planning the onboarding of new developers and providing mentorship.
Assistance in the hiring process, including evaluation, interviews, and strategic planning.
Porsche Digital GmbH: Development of the Porsche Road Trip app that allows users to comfortably plan and navigate through spontaneous drives and individual road trips along curated premium routes.
KI Labs: Development of a MVP for a large automotive company.
Snapp Mobile Germany GmbH: Equitel Banking - Consumer digital banking app for Equity bank, one of the largest banks in Sub-Saharan Africa.
comdirect Mobox - Banking app to manage current, savings and credit card accounts for teenagers. Addressed technicalities of implementing playful UI with customizable options and various offline features.
Deutsche Bahn AG - Development of a prototype for the next generation of companion app for train travellers.
optile GmbH: KPI Dashboard - KPI tracking of online payments for merchants that use optile's online payment solutions.
Every Interaction: Watchy - Composer of Apple Watch screenshots, which allows users to export the composed image and share it.
Felix Schaller
Last position:
App Developer at XIXUM-Modeler
- Developing a model-based AI where natural language is interpreted as formal relations.
- Natural language terms are not considered rigid but fluid and can be negotiated in a context so meaning resolves by iteratively specifying.
- Develops all kinds of model solutions.
- Backed by natural language and data annotation.
- Requirements to code and other solutions.
Mohamad Alosman
Last position:
Systems Engineer for Network Security at Bechtle AG
- SD-WAN solution by Aruba – Swiss energy company (330 sites): design and implementation of an SD-WAN branch solution with Aruba 9004 gateways, encrypted overlay, policy-based routing, WAN load balancing, and centralized management via Aruba Central.
- LAN/WLAN & security – schools in Germany (9 sites): deployment of Aruba switches & AP-505, FortiGate 80F firewalls; setup of Checkmk monitoring, incident and change management, and secure admin access (BeyondTrust).
- Multi-site security – energy billing company (20 sites): deployment of a complete Fortinet solution (FortiGate HA cluster, FortiSwitch PoE, FortiAP), IPsec remote-access VPN via FortiClient, centralized management via FortiCloud, IntraID authentication, operations and incident management.
- Data center migration – German client: migration of data center switches (Mellanox), firewall cluster, and OfficeConnect switches to a new data center; securing configurations, implementing HA designs, testing, monitoring, and coordinated change and incident processes. Setup of two new 6300 M VSX clustered switches.
- Data center security – university hospital: implementation of a high-availability FortiGate 400F firewall cluster across three data centers; security policy design, operational support, and change/incident management.
- Enterprise campus & network access control – manufacturing company in Germany: introduction of Aruba ClearPass NAC, setup of a VSX-based switching architecture, secure WLAN access with MPSK, and integration into existing networks.
- EU client (Germany & Poland) – Sophos firewalls: operations, incident and change management of Sophos firewalls including IPsec VPN; troubleshooting and ongoing optimization of security configurations.
- Network modernization – pharmacy client in Germany: design and rollout of core and access switching (Mellanox, Aruba Instant On), migration from Sophos to Fortinet firewalls, network segmentation, and security hardening.
Sven Hasselbach
Last position:
Contract Management Workflow Application
- Architecture, review, consultation and development of a contract management workflow application
- Development of a JSF-based platform (XPages) for coordinating new products from partners' initial ideas to contract execution with clients
- Generation of contract documents based on the agreements reached
- Implementation of workflows with approval processes
- Use of Lotus Notes, Java, JSF, XPages, JavaScript, REST, Apache POI, PDF Box, Bootstrap, Selenium, JUnit and Swagger
- Development on Windows and Linux platforms
Ioan Dobre
Last position:
Senior Software Developer at ING
- Tribe Home, Product Area 4 - Customer in Life, Squad Cybertron.
- Analysis, design, development, and testing of new requirements for Optimmo, mortgage financing software.
- Analysis, design, development, and testing of the JEE application MWS kredit-baufi.
- Analysis, design, development, and testing of the Wicket Optimmo application.
- Analysis, design, development, and testing of kredit-baufi batch programs.
- Migration of kredit-baufi batches to RHEL9.
- CiL SCS consumer pacts with Finagle.
- CiL SCS touch point architecture integration.
- Team size: 10.
- Tools / Frameworks: OpenJDK Java 17, Kotlin 1.6.0, Azure, Jenkins, Stash, JEE, GitLab, JIRA, Confluence, git, Spring 6.0, Spring Cloud, Spring Data, Hibernate, JPA, JMS, Kafka, Oracle, PL/SQL, Red Hat Enterprise Linux (RHEL), Maven, REST, JBoss, IntelliJ IDEA, Wicket 9 and 10, Istio.
Tibor Szabó
Last position:
PentaSoft Unternehmensberatung AG
- Development of new batch programs
- Program modifications
- Creation of jobs and job chains
- Worked on the 'Allianz goes Linux' project
- Technologies, tools and products: PL/1, CICS, TSO, JCL, DB2
Kai Neufeldt
Last position:
Firmware Developer (GPS Receiver) at Collins Aerospace
- Continued updates to NavHub GPS server firmware on ARM system
- Developed embedded C/C++ code using Eclipse, embedded Linux, GCC
- Implemented web UI with JavaScript/jQuery, PHP, CSS, HTML
- Configured HTTPS/PKI setup using OpenSSL and Nginx
Discover over 15,000 top freelancers
Statistics of experts using DOM
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
1.9 years
Positions per freelancer
18
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Manufacturing
Certification focus areas
Information Technology, Product Development, Quality Assurance
Bachelor's degree or higher
83%
Master's degree or higher
33%
Certifications per freelancer
2
Most common languages
German, English, Arabic
Speak two or more languages
95%
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 Germany 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 Germany using DOM
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
DOM basics
The DOM, short for Document Object Model, is the browser’s live representation of a page. It lets web apps read, change, and react to HTML and XML content after the page has loaded. Strong specialists use it to shape interfaces without reloading the whole page.
What it powers
- Dynamic menus, forms, and modal dialogs
- Content updates driven by user actions
- Accessibility-friendly page behavior
- Rich interactions in single-page apps
- Testing of rendered browser output
Tools and patterns
DOM work usually sits close to JavaScript, TypeScript, and browser APIs. Experts also know how it interacts with events, selectors, layout, shadow DOM, and frameworks like React, Vue, and Angular. They write code that keeps updates targeted, predictable, and easy to test.
When companies bring in experts
Teams ask for freelance DOM specialists when UI behavior becomes hard to trace, slow, or fragile. That often happens during front-end refactors, framework migrations, accessibility fixes, or when browser bugs appear only in production. In Germany, this is common on product teams that need clear English and fast collaboration across distributed groups.
What strong specialists deliver
A strong DOM professional looks beyond simple element changes. They understand event bubbling, delegation, rendering cost, and how to avoid unnecessary reflows or broken state.
- Clean interaction logic
- Stable tests for rendered views
- Safer updates to complex pages
- Better accessibility behavior
- Fewer browser-specific surprises
Where it fits in projects
The DOM appears in product pages, admin tools, content systems, ecommerce flows, and internal dashboards. It also matters in component libraries, browser extensions, and legacy applications that still depend on direct page manipulation. Skilled experts keep these surfaces maintainable as the codebase grows and the browser stack changes.
Frequently asked questions
Before you brief your next project: the most common questions about DOM.
DOM is the browser structure that JavaScript uses to read and change a page after it loads. Companies rely on it for interactions like form updates, tabs, menus, validation, and live content changes. It is central to any frontend that needs behavior, not just static markup.
DOM is still there even when a framework handles the UI for you. React, Vue, and Angular manage updates around it, while browser APIs, events, and rendering behavior still matter underneath. A good freelancer knows when to use the framework layer and when direct DOM access is the right choice.
Not exactly. Document Object Model work is a core part of frontend delivery, but it focuses on how pages are structured, updated, and interacted with in the browser. A strong specialist also understands events, accessibility, performance, and testing.
Bring in a DOM specialist when UI behavior is brittle, hard to debug, or tied to old code that resists framework changes. They are also useful during accessibility remediation, browser compatibility work, and migrations where direct page updates still matter. That is often faster than asking a generalist to unravel it piece by piece.
A capable Document Object Model freelancer usually works comfortably with JavaScript, TypeScript, HTML, CSS, browser events, and testing tools. They should also understand accessibility semantics, rendering behavior, and how modern frameworks map to the browser. Those skills help keep UI changes safe and predictable.
A DOM expert focuses on the browser layer itself, while React or Angular specialists focus more on the framework. In practice, many projects need both perspectives because frameworks still depend on browser rendering and event handling. The right choice depends on whether the pain is in the framework or in the underlying page behavior.
Yes, DOM work is often well suited to remote collaboration because the tasks are code-based and easy to review in pull requests. For teams in Germany, hybrid or on-site work can still help during workshops, debugging sessions, or close product handovers. Good freelancers can adapt to either setup if the communication is clear.
Look for evidence that the DOM freelancer has fixed real browser issues, not just written simple UI code. Strong signals include clean event handling, careful use of selectors, attention to accessibility, and test coverage around rendered behavior. Ask for examples where they reduced fragility or improved performance in a live product.
The average hourly rate of freelancers in Germany who have used DOM in their recent projects is 93 €, which corresponds to a daily rate of about 746 € based on an 8-hour working day.
Of the freelancers in Germany who have used DOM in their recent projects, 83% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Germany who have used DOM in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Germany who have used DOM in their recent projects are German (100%), English (95%), and Arabic (11%).
The most common industries among freelancers in Germany who have used DOM in their recent projects are Information Technology (95%), Automotive (63%), and Manufacturing (63%).
The most common business areas among freelancers in Germany who have used DOM in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (63%).
Main locations of FRATCH Experts, who have recently used DOM
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 Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
