jQuery Experts in Dusseldorf
matched in minutes from 15,000 CVs with the power of AI.Hire experts who keep legacy interfaces stable, extend plugins, and clean up DOM-heavy front ends with jQuery. They also support AJAX flows, event handling, and browser compatibility work, with fast, precise matching to vetted, available freelancers.
Meet FRATCH Experts in Dusseldorf, who have recently used jQuery
Thorsten Lenzen
Last position:
Senior Security Analyst
- Analysis and remediation of security vulnerabilities in a risk assessment system for energy trading
- System analysis
- Threat modeling
- Decision-making on vulnerability mitigation strategies
- Implementation of vulnerability detection mechanisms
- Security scans
- DevSecOps practices
- Technical environment: Visual Studio Code, JetBrains Suite, MS Threat Modeling Tool, DevSecOps, Git, AWS, DynamoDB, SQL Server, Endur, Snowflake, Orca
- Languages: C#, JavaScript, TypeScript, Python, PowerShell, Bash, Terraform, SQL
Dmitry Tarantin
Last position:
Web Software Engineer at Freelancer
Third-side integration development (REST: Amazon, OpenAI, Etsy, Shopware, Prestashop, etc)
Performance optimization (Refactoring, SQL analysis)
LMS development and deployment (Moodle)
Cloud deployment automation (Amazon, Azure, Gitlab CI/CD, Docker)
Backend and Frontend development (Laravel, VueJs)
Collaboration with partner-developers (national and international)
Shirtigo GmbH
GRELLARTIG Digital GmbH
velpTEC edutainment GmbH
Jan G.
Last position:
Master Data Application at confidential
Visualization, search, and maintenance of various types of master data, providing them via a REST API, and implementing a variety of import and export formats.
Implementation, architecture, project management.
Technologies and tools: Angular (Signals, Signal Store, swagger-codegen, standalone components), Java, PostgreSQL, ActiveMQ, JavaScript, Spring Boot (Spring Core, Spring MVC, Spring Data/JPA via Hibernate, Spring Security, Spring Modulith), JUnit, Flyway, QueryDSL, GraphQL, REST API, Node, npm, Maven, SonarQube, GitLab CI/CD pipelines, Docker, Nexus, OpenAPI + Swagger UI, Keycloak, OAuth2, OpenID Connect, IntelliJ IDEA, Jira, Confluence.
Dalia Cananau
Last position:
Oracle Developer at Freelance
- Design and implementation of an OCI-based data warehouse and ETL system to replace legacy mainframe applications
- Developed a database optimization strategy and planned the rapid conversion of JCL and COBOL routines to PL/SQL using AI
- Developed an Oracle Apex-based app for internal administrative processes in the public sector (office equipment, staff training)
- Implemented PL/SQL workflows for approval processes and created a responsive mobile version with JavaScript and CSS
- Used Azure DevOps for backlog management and documentation, and Git for version control
- Developed REST interfaces to CRM systems
- Replaced and reprogrammed Oracle Forms screens with Oracle Apex and updated to the latest Apex versions
- Designed a Git branching strategy and conducted code reviews
- Maintained and further developed an EDI-based data exchange system based on Oracle Advanced Queuing for the public sector in Austria
- Performed data analysis and created charts in the Oracle Apex frontend; installed standalone ORDS and Apex 23.1
- Worked agile using the Spotify model; developed complex Apex pages with support from Oracle JET
- Rebuilt and customized existing PL/SQL packages, created workarounds for database version differences, and optimized queries
- Developed Apex applications for broker pools to manage and optimize Oracle databases in the banking environment, including SSO-based authorization systems with OAuth2 and Keycloak
- Built extensive Oracle Apex applications for BI and data mining modernization projects and developed manual and automated projection methods in the frontend
- Carried out data warehousing projects in the banking sector and used Scrum and Kanban in team projects
Thang Nguyen
Last position:
Lead Frontend Developer at STRÖER Dialog Group
- Development of the “Ranger App” (Maui Blazor Hybrid), an app to manage all internal apps
- Development of the “SWA App” (Maui Blazor Hybrid), a data capture app for Telekom acquisitions
Karan Shah
Last position:
Senior Software Engineer at Infosys Ltd
- Forecasting Cost Tool (PCCT) imports data via SSIS from CSV files and processes modules for administrator, user management, train operations, and fleet operations.
- Conducted requirement analysis and effort estimation.
- Designed database and developed web pages.
- Tested the application.
Jacqueline Haefke
Last position:
Kitchen Appliance Manufacturer
Setting up and enhancing an international subscription management system
Migrating and decommissioning a Hybris-SAP system and integrating Zuora
Implementing numerous interfaces to various systems (external and internal)
Setting up and improving monitoring with Grafana, Prometheus, and Databricks
Introducing logging with Loki
Implementing business requirements using jQuery, Thymeleaf, Spring Boot, Java, Go, and Python
Adjusting and extending the GitLab CI pipelines
Setting up and extending infrastructure as code with Terraform and ArgoCD on AWS
Setting up and running E2E and performance tests
Expanding the Databricks business intelligence solution to provide various KPIs
Responsibilities: Architecture, DevOps, development, unit tests, coaching employees and apprentices, E2E, smoke, and integration tests, agile methods consulting (Kanban, Scrum)
Technologies and methods: Java, Go, Kotlin, Node.js, Spring Boot, SOAP/REST, Quarkus, Thymeleaf, Vaadin, Slack, Jira, Confluence, IntelliJ, GitLab, SQS, Kafka, AWS, Kubernetes, Terraform, Maven, Gradle, GitLab CI, Databricks
Andreas Grutz
Last position:
Senior Fullstack .NET (Core) & Angular Developer at IT service provider
- Supported an agile team in the development of a new CRM tool
- Web frontend development (Angular 17 with MDB-Bootstrap, microfrontends, DDD)
- Backend development (C# & .NET 7-9, MongoDB, MassTransit, RabbitMQ, Elasticsearch, microservices, DDD)
- Coordination with stakeholders & product owners
- Assisted in sprint planning
Philip Strauß
Last position:
Web Developer at Self-employed Web Developer
- Self-employed Web Developer
- Website: [link]
Discover over 15,000 top freelancers
Statistics of experts using jQuery
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
2.2 years (Germany: 5.3 years)
Positions per freelancer
14 (Germany: 13)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Retail
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
67% (Germany: 85%)
Master's degree or higher
33% (Germany: 46%)
Doctorate
33% (Germany: 7%)
Certifications per freelancer
5 (Germany: 2)
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 96%)
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 Dusseldorf 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 Dusseldorf using jQuery
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
jQuery in practice
jQuery is a JavaScript library for fast DOM work, event handling, effects, and AJAX. It is still common in sites that need small interface updates without a full rewrite. Companies use it to keep older front ends working while new parts are built beside them.
Common tasks
- Maintain legacy pages that already depend on jQuery
- Repair plugins, forms, sliders, menus, and modal flows
- Connect UI actions to APIs with AJAX requests
- Fix browser quirks in older codebases
- Reduce front-end risk during partial migrations
Ecosystem fit
jQuery often sits alongside Bootstrap, WordPress themes, CMS templates, and older custom JavaScript. Strong specialists know how to read mixed code, separate plugin logic from page logic, and avoid conflicts with other libraries. They also understand when native JavaScript should replace jQuery code.
When companies bring in specialists
Teams usually need outside help when an inherited site is fragile, a plugin stopped working, or a launch depends on quick UI fixes. In Dusseldorf, this often matters for agencies, commerce teams, and internal business portals that still run on older front-end stacks. Freelance support works well when the work can be reviewed in the browser and shipped quickly.
What strong experts do
Good professionals write small, safe changes and explain why the code behaves as it does. They handle selectors, events, animations, and AJAX without creating hidden side effects. They also test in real browsers and keep the code easy to migrate later.
Signs you need help
- The site uses jQuery plugins you no longer understand
- Small UI changes keep breaking other parts of the page
- The code mixes jQuery with newer JavaScript in a messy way
- You need a short, focused fix instead of a full rebuild
- Your team wants a clean path away from jQuery over time
Frequently asked questions
Key details about jQuery, drawn from the questions we get asked most.
jQuery is used for DOM updates, event handling, AJAX calls, and small interface effects in existing websites. It is especially common in older web apps, CMS-driven sites, and pages built around plugins that still depend on it.
A strong jQuery specialist helps when a legacy front end is hard to change, a plugin breaks, or a browser bug blocks a release. Companies also bring in specialists for cleanup work before a gradual move to modern JavaScript.
jQuery is lighter and simpler for targeted page updates, while frameworks like React or Vue are better for larger app architecture. If you need quick fixes in an existing codebase, jQuery can be the practical choice; if you are rebuilding the whole UI, a framework is often the better fit.
A good jQuery professional usually knows JavaScript, HTML, CSS, the browser event model, and AJAX. They often also understand Bootstrap, WordPress themes, and how to work safely inside older code that was built by many hands.
jQuery work ranges from small fixes to deeper maintenance of plugin-heavy pages, so the needed level depends on risk. Simple selector or event fixes need less depth, but anything involving legacy code, mixed libraries, or migration planning calls for a very experienced specialist.
Yes, jQuery work is often well suited to remote collaboration because most tasks can be reviewed in the browser and in source control. For teams in Dusseldorf, remote support works well when the specialist can join short check-ins and test against a shared staging setup.
Look for someone who can explain the existing code, isolate the change, and avoid side effects. A good jQuery expert writes clear event logic, handles plugins carefully, and knows when a fix should stay small instead of turning into a rewrite.
Yes, jQuery is still common in WordPress themes, CMS templates, and many marketing sites. It remains useful when the project depends on existing theme scripts, third-party plugins, or small enhancements that do not justify a full front-end rebuild.
The average hourly rate of freelancers in Dusseldorf, Germany who have used jQuery in their recent projects is 90 €, which corresponds to a daily rate of about 720 € based on an 8-hour working day.
Of the freelancers in Dusseldorf, Germany who have used jQuery in their recent projects, 67% hold at least a Bachelor's degree, 33% hold at least a Master's degree, and 33% hold a doctorate.
On average, freelancers in Dusseldorf, Germany who have used jQuery in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Dusseldorf, Germany who have used jQuery in their recent projects are German (100%), English (100%), and Spanish (11%).
The most common industries among freelancers in Dusseldorf, Germany who have used jQuery in their recent projects are Information Technology (100%), Manufacturing (56%), and Retail (56%).
The most common business areas among freelancers in Dusseldorf, Germany who have used jQuery in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used jQuery
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 Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
