JavaScript Experts in Zurich
in minutes from over 15,000 CVs with the power of AI.Hire experts who build browser apps, Node.js services, and reusable front-end components with JavaScript. They also handle API integration, testing, and legacy code cleanup, with fast, precise matching to vetted, available freelancers.
Meet FRATCH Experts in Zurich, who have recently used JavaScript
Gwang Jin Kim
Last position:
Data Scientist / Applied AI, Automation & Data Systems Researcher at Independent
- Built and explored applied GenAI, RAG, GraphRAG, local LLM, agentic AI and document-intelligence prototypes for structured analysis, evidence extraction, semantic search, technical reasoning and decision-useful reporting
- Developed private local-LLM workflows and AI system patterns focused on privacy, reproducibility, reviewability, low-cost inference and practical user control
- Built reproducible Python/R workflows for data analysis, automation, API-driven tooling, validation logic, technical documentation and AI-assisted software development
- Designed workflows around explicit assumptions, traceable inputs, reviewable outputs and failure-mode awareness rather than black-box “looks good” demonstrations
- Supported RAHN AG in a chemical/regulatory environment with data extraction and processing around WERCS, a regulatory application for chemical product and compliance data
- Explored complex application/database schemas and wrote nested SQL queries to extract information for mixture calculations, component relationships, regulatory rules and reporting logic
- Continued hands-on development in Git/GitHub/GitLab/Bitbucket, Docker/Linux deployment patterns, REST/API workflows, error handling, technical writing and fast AI-assisted prototyping
- Built technical writing and documentation workflows that turn complex systems into clear runbooks, checklists, decision notes and user-facing explanations
Nikita Verkhoshintcev
Last position:
Salesforce Technical Architect at Fennia
- Designed and engineered a shared web component library for a customer portal serving 360,000+ private users and integrated the LWC framework with Storybook via Rollup.
- Resolved WCAG AA compliance issues to support strict accessibility requirements.
- Integrated legacy systems into a new portal via REST API to support existing products.
Christoph Pardon
Last position:
ICT DevSecOps Engineer at Abraxas Informatik AG
Reduced time-to-market by optimizing CI/CD pipelines. Employees without customer VM access can now deploy. Increased system stability and performance and reduced maintenance effort through systematic database cleanup. Restricted rights for Flyway migrations versus service users. Improved transparency and decision-making basis with enhanced Grafana dashboards for response times, optimized logging, and standardization with Loki. Reduced security risks by consistently applying security best practices such as removing the public schema in PostgreSQL, individual service user permissions, and Docker security context. Facilitated knowledge transfer and sustainable process improvements by creating process diagrams and implementing various concepts. Conducted code reviews across multiple repositories.
Piotr Seredyn
Last position:
CTO Program Manager, Theme Owner / Senior Project Manager at Avaloq Group AG
- Clients: Central banks of the most developed economies in the world, German, Swiss, Luxembourgish, Monegasque, Singaporean, Japanese wealth managers and universal/private banks, world’s largest investment banks
- Accountable for managing the delivery of a portfolio of digital wealth and consumer relationship management initiatives
- Project managing portfolios of projects within CTO product and technology business area (cyber security, architectural changes, re-organisational transformation, 3rd party apps)
- Products: Kernel & Parametrisation for Core Avaloq Banking Platform; modules: CRM, client data management, wealth management, portfolio management (generating over 90% of company revenues)
- Key responsibilities:
- Reporting to Head of Disruptive Innovation Division; stakeholder to five product owners & two domain owners
- Accountable for delivery of annual themes and quarterly key deliverables
- Managing demand vs supply via QBR process: book of work, execution, reporting, risk management
- Directly managing around 40 external consultants (front-end/back-end engineers, BAs, designers)
- Hiring and managing resources in eight countries
- Running quarterly divisional closure meetings presenting achievements and challenges
- Resolving cross-team dependencies and internal/external conflicts
- Owning and controlling maintenance budget; planning, forecasting, execution; ensuring demand matches supply
- Identifying and staffing key roles with chapter leads
- Approach: Agile, Scrum of Scrums, QBR/OKRs
- Technology: Angular, PL/SQL, JavaScript, Confluence, JIRA (JQL)
Max Meinhardt
Last position:
Qualtrics CXM Solutions Expert at Freelancing
Support with the introduction and implementation of the Qualtrics XM platform in the consulting and service environment for customers, e.g. in the banking sector, focusing on data quality, parameterization, technical coordination, and implementation support
Technical validation of configurations, feedback flows, and reporting setups
Review and assurance of data quality (mapping, mandatory fields, regulatory-relevant fields)
Performance of UAT, functional tests, and data checks in collaboration with the department and IT
Coordination with stakeholders from consulting, service, compliance, IT, and product management
Clarification of technical requirements with the business side and derivation of adaptation requirements in the platform
Creation of documentation, test protocols, and quality-related artifacts
Support in the preparation of internal approvals and rollouts
Successful technical acceptance of the new feedback and reporting functionalities
Increase in data quality in the relevant fields (e.g., feedback classification, assignment to the consulting process)
Stable implementation of the platform in the consulting environment with clear handover to IT and specialist departments
Philipp Siegenthaler
Last position:
Equity Portfolio Manager - Digital Wealth Management at Interactive Brokers LLC
- Solely responsible for two portfolios totaling USD 1 million with an average monthly performance of 2%
- Responsible for the investment strategy, specializing in US equities and ETFs (exchanges: NASDAQ and NYSE)
- Market, trend, data, and technical chart analysis
- Risk management – diversification, daily/weekly risk mitigation measures (rebalancing) to ensure optimal portfolio profitability
Ahmed Rehman
Last position:
AI & Automation Engineer at Teosek GmbH
- Build prototypes, expand AI skills, and practical application in a startup context.
- Transition phase: further training in prompt engineering, APIs, AI, working on independent prototype projects, and collaborating at a friend's startup.
- Technologies: LangChain, REST, Python, Java, JS, TS, Node.
Christian Bucholdt
Last position:
Principal Business Acceleration & Advisory at Xebia
- Building productivity solutions for backoffice functions including case management and automated workflows in insurance
- Integration of GenAI functionality in operational processes for efficiency based on measurable KPIs
- Successfully delivering integration and data projects with agile methodology in requirements engineering, cloud native development and computing, software development, data analytics, quality management and technical documentation
- Coaching and advising clients for adoption of technologies such as use case identification, organizational impact assessment and building a business case for investments
- Advising clients on cost optimization through IT carve out and outsourcing of software product engineering
- Technologies: Jira, Confluence, ServiceNow, GitHub Co-Pilot, Agile/SAFe
Peter Sacco
Last position:
Web Application Developer PHP / WordPress Plugin Development at Gemeinde Bauma
- Analysis, consulting, and development of a WordPress application for the digital processing and delivery of the Bauma chronicle archive
Karim Ismail
Last position:
Test Engineer at Ixtrac AG for Swica
- Building a framework for automated website testing
- Testing, regression testing
- Defect management
- Release management, UAT, agile testing
- Feature discussions with business
- Test management
Dariusz Kaczmarkiewicz
Last position:
Business System Analyst at Zurich Insurance
Participating in a strategic enterprise project to introduce a centralized customer data platform ("Single Source of Truth") to eliminate redundant data storage and accelerate digital services
Analyzing and documenting business and system requirements for migrating large, heterogeneous data sets (ETL) and for continuous data synchronization between core systems and the new platform
Close collaboration with business units, data engineers and architects to gather and validate requirements, and to ensure data quality, consistency and regulatory compliance
Defining the migration strategy, specifying ETL processes and synchronization mechanisms, and documenting technical interfaces
Developing and executing test cases for migration and synchronization processes, and performing defect analysis to ensure data integrity and system stability
Technologies: SQL, Microsoft SQL Server, Azure DevOps, Confluence, UML, RESTful Services, Swagger, Postman
David Barreto Schmidt
Last position:
External Project Manager in the Supply Chain Network at DEUTZ AG
- Project management (SAP BN (Ariba) onboarding, support for SAP ECC and SAP TM for supplier topics)
- Standardization of global value creation processes
- Basic training as well as central contact person for suppliers and support for planners
Matthias Isler
Last position:
Fractional CTO (Principal Engineer / Technical Architect)
- Designed large-scale systems and APIs serving thousands of concurrent users.
- Refactored a 650k-LOC monolith and led full AWS migration for stable performance.
- Introduced SLO-based observability, improving reliability and recovery flow.
- Optimised cloud and databases, achieving significant cost and latency reduction.
- Delivered LLM, RAG, and document-automation pipelines adopted in production.
Csaba Kéri
Last position:
ServiceNow Consultant at DXC
- Worked in mixed teams with several clients
- Performed requirement engineering, proposal and time estimation
- Developed ACLs, business rules, flows, workflows, catalog items, various scripts, UI actions, policies, scoped applications
- Customized mobile apps: Now Agent and Now Mobile
- Implemented integrations using the Integration Hub
- Coordinated continuously with clients during development
- Performed testing and helped clients with testing
- Deployed to production and applied main version upgrades and patches
- Managed CMDB, domain separation and asset management
- Integrated between instances at different clients
- Developed GlideScript: business rules, scripted REST endpoints, extension points, fix scripts, background scripts
Beat Zangger
Last position:
SAP Test Manager at E.ON Grid Solutions GmbH
- Responsible for IT integration test and user acceptance test for SAP S/4 Hana and BDO BO Customer Financials Management
- Led the test team (business testers and IT testers)
- Resource planning and control within the test team
- Created test concepts and test plans
- Performed test risk analysis
- Coordinated test execution and defect tracking
- Ensured test progress
- Generated and visualized reports
- Summarized test reports and reported to management
- Prepared and conducted user acceptance tests
- Managed SIGMA and JIRA/Confluence at project level
Discover over 15,000 top freelancers
Statistics of experts using JavaScript
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
2 years (Switzerland: 2.1 years)
Positions per freelancer
12 (Switzerland: 13)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Professional Services
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
86% (Switzerland: 85%)
Master's degree or higher
71% (Switzerland: 56%)
Doctorate
14% (Switzerland: 10%)
Certifications per freelancer
3 (Switzerland: 4)
Most common languages
English, German, Spanish
Speak two or more languages
100% (Switzerland: 98%)
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 Zurich 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 Zurich using JavaScript
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
Core use
JavaScript powers interactive web products, from customer portals to internal tools and single-page apps. It also runs on the server with Node.js, so one language can cover both front end and back end. Strong specialists know where JavaScript fits best and where to pair it with TypeScript or other tools.
What they deliver
- Browser features, UI logic, and dynamic page behavior
- Node.js APIs, services, and automation scripts
- Integration with REST, GraphQL, and third-party services
- Testing, refactoring, and maintenance of existing code
- Build tooling, bundling, and performance fixes
Ecosystem skills
Good JavaScript professionals work with the wider ecosystem, not just the language. That often includes npm, modern frameworks, linting, transpilation, and test runners. They understand how browser APIs, asynchronous code, and package management shape delivery quality.
When companies bring help
Companies bring in freelance JavaScript specialists when a product needs to move quickly or a codebase has become hard to change. Common cases are new features, migration from older jQuery code, fixing flaky UI behavior, or stabilizing Node.js services. In Zurich, this often matters for teams that need smooth collaboration across product, design, and engineering.
What strong specialists do
Strong JavaScript experts write code that is readable, testable, and easy to maintain. They manage asynchronous flows well, avoid brittle patterns, and keep interfaces consistent. They also communicate clearly, which matters when working with in-house teams on existing products.
Local collaboration
For Zurich-based projects, JavaScript work often happens in mixed setups. Some specialists join on site for workshops or complex handovers, while others support teams remotely across time zones. Clear documentation and good English are usually enough; German can help in stakeholder-heavy environments.
Frequently asked questions
The facts hiring teams ask for most often when it comes to JavaScript.
JavaScript is used to make web interfaces interactive, connect browser apps to APIs, and run server-side services with Node.js. Companies also use it for automation, dashboards, and internal tools. It is one of the most common choices when a product needs fast changes and broad browser support.
Choose JavaScript when speed, flexibility, or an existing JavaScript codebase matters most. TypeScript is often preferred for larger teams that want stricter typing and heavier tooling. Many projects use both: JavaScript for runtime code and TypeScript where type safety pays off.
A strong JavaScript specialist usually knows HTML, CSS, Git, testing tools, and at least one framework such as React, Vue, or Angular. On the server side, Node.js and API design are common. For modern projects, familiarity with package managers, bundlers, and browser debugging is also important.
A small UI fix may need only a focused JavaScript specialist, while a larger rewrite needs someone who has worked with architecture, testing, and performance. The more legacy code or integrations you have, the more important proven cleanup experience becomes. For long-running products, steady maintenance skill matters as much as feature work.
Often yes. JavaScript tasks such as UI work, API integration, and test coverage can be done remotely with good communication and access to the codebase. On-site sessions in Zurich help when you need workshops, handovers, or quick alignment with product and design teams.
Look for clear code, good testing habits, and a track record of fixing real product problems with JavaScript. A strong specialist explains trade-offs simply and asks about browser support, build flow, and deployment. Review how they handle async logic, component structure, and edge cases, not just how fast they code.
JavaScript is the language, while Node.js is the runtime that lets it run outside the browser. Companies often search for both because many specialists work across front-end and back-end tasks. If you need one person to touch UI and server code, that overlap is valuable.
Yes. JavaScript specialists often spend a lot of time in older codebases, especially where jQuery, mixed patterns, or weak test coverage slow delivery. The best ones can modernize code step by step without breaking existing behavior, which is often more useful than a full rewrite.
The average hourly rate of freelancers in Zurich, Switzerland who have used JavaScript in their recent projects is 109 €, which corresponds to a daily rate of about 870 € based on an 8-hour working day.
Of the freelancers in Zurich, Switzerland who have used JavaScript in their recent projects, 86% hold at least a Bachelor's degree, 71% hold at least a Master's degree, and 14% hold a doctorate.
On average, freelancers in Zurich, Switzerland who have used JavaScript in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Zurich, Switzerland who have used JavaScript in their recent projects are English (96%), German (92%), and Spanish (33%).
The most common industries among freelancers in Zurich, Switzerland who have used JavaScript in their recent projects are Information Technology (92%), Banking and Finance (79%), and Professional Services (63%).
The most common business areas among freelancers in Zurich, Switzerland who have used JavaScript in their recent projects are Information Technology (100%), Product Development (79%), and Quality Assurance (71%).
Main locations of FRATCH Experts, who have recently used JavaScript
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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