jQuery Experts in Berlin
to improve web interfaces with fast, precise AI matchingHire experts who build responsive browser interfaces, maintain legacy JavaScript applications, and connect front ends to Ajax services. FRATCH matches you with vetted, available freelancers who fit your technical needs quickly and precisely.
Meet FRATCH Experts in Berlin, who have recently used jQuery
Sascha B.
Last position:
Web Developer at GxPlex
- Built a customized MediaWiki instance, including installation, MySQL database, SSL, and automatic backups
- Set up user roles (Admin, Mod, Verified, User) and a permissions system
- FlaggedRevisions for editorial review workflows · Commenting and rating extensions
Toralf C.
Last position:
IT Consultant in PKI Software Development at BWI
- Implementation of a full-stack application with Angular as frontend framework and Java as backend language
- Use of the Swagger OpenAPI specification for REST communication between frontend and backend applications
- Control of a card printer via the Nexus Card SDK framework
- Design and implementation of card management software with web interface and JavaFX module for printer monitoring
- Use of Cucumber tests for test automation and creation of test artifacts for testing outside the development environment
- Use of Wireshark for network investigations to analyze the API of a third-party product and to check the REST API of the self-developed software
Alois R.
Last position:
Senior Fullstack Developer at brandung GmbH
- Opt-in RAG extension over tenant-owned data sources (SharePoint, Confluence) on existing multi-tenant enterprise AI platform
- Architecture: ADRs, solution evaluations, permission strategy, cost modeling
- End-to-end SharePoint and Confluence connectors: OAuth consent flows, token refresh, metadata sync, search integration
- Permission resolution: ACL indexing at ingestion and query-time verification (document-level security)
- Elasticsearch hybrid search (semantic + keyword) with RRF scoring
- RAG chat with context injection and source citations
- Stack: Elastic Cloud, Elasticsearch, Docker, Northflank, Next.js, React, TypeScript, Prisma, Microsoft Graph API, Atlassian REST API, OAuth 2.0
Imran A.
Last position:
Software Engineer II at LivePerson Germany GmbH
- Led development of 15+ microservices (Java 17, Spring Boot) driving customer interactions; migrated from on-prem to GCP Kubernetes, improving scalability and reducing infra cost by 20%.
- Optimized user services with CouchDB caching and API refactoring, cutting response times by 35% and enhancing customer experience.
- Implemented canary deployments, FluxCD GitOps, and CI/CD optimizations in GitLab, reducing release lead time by 25% and enabling zero-downtime rollouts.
- Set up Grafana health checks and Anodot alerts for latency, error, and throughput monitoring, reducing MTTR by 40%.
- Built secure APIs using OAuth2, DPoP, and Gatekeeper, integrated REST and GraphQL, and achieved 90%+ test coverage with unit and E2E tests.
- Mentored junior developers, promoted Agile best practices, and collaborated cross-functionally to deliver high-impact, reliable customer-facing features.
Stefan D.
Last position:
Frontend Developer – Sports Event and City Portal Projects at München Betriebs GmbH
- Developed an accessible, responsive website based on Figma designs for a major sports event in compliance with WCAG, BITV and EN 301 549
- Planned and set up the tool stack with Vite, Playwright, Docker and GitLab CI
- Worked on two existing projects (Vue.js & Nuxt), focusing on bug fixing, accessibility audits and developing new features
- Collaborated with Design and QA to consistently implement accessible UI patterns
- Advised on improving existing frontend architectures in terms of accessibility, performance and maintainability
Santhosh K.
Last position:
Freelance Software Engineer at Zalando SE
- Drive migration of enterprise authorization platform from Styra DAS to open-source OPA via Skipper (Zalando's Golang-based ingress proxy) integration
- Optimise k8s resources and integrate native Prometheus metrics with OPA
- Migrate from internal monitoring solution to Prometheus CRs + Dash0
Tech Stack: Java/Kotlin, Golang, Python, Spring Boot, AWS, Kubernetes, Docker, OpenTofu, Prometheus, Grafana
Ingo S.
Last position:
Plugin for Shopware at Self-employed
Developed the “Cost Transparency” plugin for Shopware 6 that extends product details with an interactive graphic illustrating different shares of the total price
Technologies: Shopware, PHP, Twig, CSS, JavaScript
Alessandro L.
Last position:
Vue Frontend Engineer at Savills
- Savills is one of the world's leading property advisors with 700+ offices worldwide. In Berlin, I built core digital solutions for the valuation business, replacing legacy Access-based workflows with an enterprise-grade web app built on Vue.js.
- Frontend Architecture & Scalability: Designed scalable Vue + TypeScript frontend architecture for internal enterprise applications, integrating a Symfony backend and interactive maps.
- Legacy Modernization: Led the modernization of legacy jQuery-based systems into maintainable Vue-driven applications, improving performance, maintainability, and efficiency across business workflows.
- PDF Report Workflow Automation: Engineered Twig-based automated PDF generation pipelines that reduced manual report preparation time by ~80%, saving approximately 12h per analyst/month.
- Design System & Frontend: Built a scalable SASS-based design system using mixins, maps, functions, and reusable UI patterns for consistency and long-term maintainability.
Yahya S.
Last position:
Odoo Software Developer & Consultant at KNAUER Wissenschaftliche Geräte GmbH
- Planning and implementing tailored Odoo ERP solutions to support and optimize specific business processes
- Configuring and customizing Odoo modules according to individual customer requirements, including process automation and data integration
- Training and supporting end users and administrators to ensure full use of Odoo features and to enhance user skills
- Providing ongoing post-implementation support, including troubleshooting, maintenance and updates to adapt to new business requirements
- Migrating data and integrating external applications into Odoo environments for a seamless, unified data landscape
- Analyzing and improving existing Odoo systems to boost efficiency and optimize the user experience
Jan H.
Last position:
Technical Co-Founder at Telemarie UG
- Technical leadership & SW architecture: Conducted trade-off analyses for technology stacks and led the design and implementation of the software architecture, including mobile and backend solutions. Facilitated Event Storming workshops for DDD and SW architecture.
- Strategic direction & organizational development: Played a key role in defining the strategic direction of the product and organization, exploring new forms such as ownership responsibility.
- Lean Startup & Agile development: Introduced Lean and Agile principles, implemented Lean prototypes, and ensured compliance with Lean Startup processes, iteratively moving from Product/Solution-Fit to Product/Market-Fit.
- Team building & collaboration: Facilitated workshops, retrospectives, and futurespectives to collaboratively develop tactics and strategies.
- Technologies: Flutter, JS/TS, React, Google Cloud, Firebase, Android, iOS.
- Organizational methods: Lean startup, lean canvas, lean agile, event storming, retrospectives.
Julien L.
Last position:
MLOps Engineer at SAMGEN
- Building and scaling cloud infrastructure on GCP to support a SaaS platform for industrial clients
- Designing and implementing a data-driven DevOps pipeline for streamlined deployment and CI/CD workflows
- Collaborating with Data Science team on MLOps workflow to automate integrated retraining
Paulo A.
Last position:
Founder and Product Lead at Muvuca Solutions
- Lead a climate tech consultancy end to end, coordinating cross-functional teams, owning client strategy and project management, and delivering ESG strategies and AI-first products.
- Stay hands-on across discovery, analytics, roadmapping, architecture, and QA to safeguard execution quality.
- Designed, developed, and launched Jody, an AI travel planner (demo credentials provided).
Alberto G.
Last position:
C#/.Net Developer at Pean-IT GmbH
- Developed high-performance REST API interfaces in C# for Investitionsbank Berlin (IBB) using CI/CD (Git, Azure DevOps).
- Developed the "Pean Admin Center" using the Microsoft Graph API (backend: C#, frontend: Vuetify), implemented via CI/CD pipelines (Azure DevOps).
- Created low-code business applications and automated processes with Power Apps and Power Automate.
- Set up and designed the online shop for Pestalozzi-Fröbel-Haus (PFH) via Wix.
Mario R.
Last position:
Coach for Mid-Level/Senior Recruiters at La Red Berlin e.V.
- AI in recruiting
- Talent acquisition
- End-to-end recruiting
- Direct sourcing
- Dealing with hiring managers
- IT know-how
- Candidate experience
Thomas S.
Last position:
GEDISA mbH
- Development of various backends (PHP) in a microservice architecture with STRENGTHS
- Development of administration interfaces with Laravel Filament diligent consistent agile
- Integration of third-party providers via REST interfaces patient attention to detail motivating
Discover over 15,000 top freelancers
Statistics of experts using jQuery
Aggregated from the professional profiles of matched freelancers.
Experience
20 years (Germany: 21 years)
Position duration
2.3 years (Germany: 5.3 years)
Positions per freelancer
12 (Germany: 13)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Retail, Media and Entertainment
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100% (Germany: 84%)
Master's degree or higher
47% (Germany: 45%)
Certifications per freelancer
1 (Germany: 2)
Most common languages
German, English, Spanish
Speak two or more languages
91% (Germany: 97%)
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 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
jQuery 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 (57%)
- Media and Entertainment (52%)
- Education (43%)
- Banking and Finance (43%)
- Professional Services (43%)
- Government and Administration (35%)
- Manufacturing (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What jQuery does
jQuery is a JavaScript library that simplifies work with the browser document object model, events, animations and asynchronous requests. It helps specialists create interactive web pages with concise syntax and consistent behavior across browsers. Many established websites still rely on it for stable front-end behavior and incremental modernization.
Where it fits
jQuery is common in server-rendered websites, customer portals, online shops, content management systems and internal business applications. It can enhance forms, navigation, search, filtering, validation and dynamic page elements without requiring a full single-page application rewrite.
- Add interactive form validation and feedback
- Update page content through Ajax requests
- Maintain plugins and browser-facing components
- Improve legacy interfaces without replacing the whole stack
Ecosystem and tooling
Strong specialists work comfortably with JavaScript, HTML, CSS and browser developer tools. They may also use jQuery UI, jQuery Mobile, Bootstrap, webpack, npm, TypeScript or server-side frameworks that expose JSON and Ajax endpoints. Knowledge of REST interfaces, accessibility, responsive design and testing makes their work more reliable.
When companies need help
Freelance expertise is useful when an older interface has become difficult to change, a release needs focused front-end support, or a team must connect existing pages to modern services. Specialists can trace event handlers, reduce plugin conflicts, remove duplicated code and document behavior that is no longer obvious.
- Diagnose slow scripts and repeated DOM operations
- Replace outdated plugins safely
- Connect forms and widgets to backend services
- Prepare a gradual move toward modern JavaScript
What quality looks like
A capable professional separates presentation, behavior and data access instead of placing everything in anonymous callbacks. They use delegated events where appropriate, handle asynchronous failures, avoid unsafe HTML insertion and consider keyboard access. Clean selectors, small modules, clear naming and tests for important interactions make future changes safer.
Choosing the right specialist
Ask for examples involving the kind of interface you operate, especially legacy pages, Ajax workflows or plugin-heavy systems. The right expert can explain browser constraints, identify risks before changing production code and work with backend, design and quality teams. For Berlin-based companies, remote collaboration can work well when documentation, review routines and communication language are agreed early; on-site sessions may help during complex system handovers.
Frequently asked questions
Questions about jQuery? Start with the answers below.
jQuery is used to handle browser events, change page content, validate forms, create simple animations and send Ajax requests without reloading a page. It is especially useful when a company needs to maintain or extend an established server-rendered interface.
jQuery offers a compact way to manipulate the DOM and coordinate browser behavior, while React is built around component-based rendering and vanilla JavaScript uses native browser APIs directly. The right choice depends on the existing codebase, the required interface complexity and whether a full front-end change is justified.
A strong jQuery specialist should also understand JavaScript, HTML, CSS, browser debugging and HTTP-based APIs. Experience with Ajax, JSON, accessibility, responsive layouts, Git and a backend framework is valuable when the interface connects to business systems.
The required level depends on the risk and scope of the work. A small widget may need focused jQuery knowledge, while a plugin-heavy legacy application calls for a professional who can trace dependencies, understand the wider JavaScript code and plan changes without disrupting existing behavior.
Yes, jQuery work is often suitable for remote collaboration because code, browser tests and issue tracking can be shared online. Teams should define review practices, access requirements, working hours and whether German or English is needed for meetings and documentation.
jQuery remains sensible when an existing application already depends on it, the required interactions are modest or a full framework migration would add unnecessary risk. It is less suitable as the foundation for a highly stateful new application that needs a structured component architecture.
Review whether the jQuery code uses clear event handling, avoids repeated DOM work and manages asynchronous errors properly. Ask the professional to explain accessibility, security, browser support, testing and how their changes will remain maintainable after the engagement ends.
In Berlin, jQuery expertise can be relevant to companies running established commerce sites, publishing systems, portals and internal tools. A specialist can support teams that need reliable changes to an existing interface while coordinating with remote or on-site product and technology colleagues.
The average hourly rate of freelancers in Berlin, Germany who have used jQuery in their recent projects is 90 €, which corresponds to a daily rate of about 717 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used jQuery in their recent projects, 100% hold at least a Bachelor's degree and 47% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used jQuery in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Berlin, Germany who have used jQuery in their recent projects are German (100%), English (91%), and Spanish (17%).
The most common industries among freelancers in Berlin, Germany who have used jQuery in their recent projects are Information Technology (100%), Retail (57%), and Media and Entertainment (52%).
The most common business areas among freelancers in Berlin, Germany who have used jQuery in their recent projects are Information Technology (100%), Product Development (91%), and Project Management (52%).
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 Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg 
Hamburg 
Munich 
Cologne 
Frankfurt 
Dusseldorf Countries:
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