RxJS Experts in Frankfurt
, matched in minutes from over 15,000 CVs with the power of AIHire experts who design reactive data flows, integrate RxJS with Angular and NgRx, and handle real-time interfaces and event-driven services. FRATCH finds a precise match among vetted, available freelancers quickly.
Meet FRATCH Experts in Frankfurt, who have recently used RxJS
Mojtaba G.
Last position:
Full-Stack Software Developer at Energiebereich
- Led and coordinated consumption and price calculations for gas and electricity forecasts to ensure accurate and reliable price determination
- Implemented modern .NET 7-based microservices and Web APIs in an Azure environment using Azure App Service, Azure Storage and Azure Service Bus
- Created and managed infrastructure in Azure using Terraform, including resource provisioning and the automation of deployment processes
- Developed and maintained Azure DevOps pipelines to optimize build, test and release workflows
- Optimized data management with SQL Server and ensured seamless integration across all services
- Developed the frontend with Angular 16, TypeScript, CSS, HTML and Kendo UI to provide an intuitive and engaging user interface
Khaled T.
Last position:
Consultant / DevOps Engineer at Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Porsche ID is a unified digital identity platform providing secure authentication and seamless access across Porsche’s online services, mobile apps, and connected vehicle features
- Designed and implemented new authentication and authorization functionalities for both users and systems
- Ensured high availability, security, and performance to deliver a flawless digital experience for Porsche customers
- Technologies: Auth0, Angular, Tailwind, AWS, Terraform, Github
- Methodologies: Scrum and SAFe
Werner K.
Last position:
Test Coordinator, Designer and Engineer at IBM
- Testing the SekIDP and related components
- Test design, execution and automation, microservices, GitHub Enterprise, Eclipse, Katalon Test Platform, API Testing, Confluence 8, JIRA/Xray, Draw.io, Swagger/OpenAPI, Postman, Docker, Kubernetes, Podman, PuTTY, E-Health, Telematik, Gematik standards, EPA, E-Rezept, sektoraler IDP, encryption, XaDES, PaDES, DICOM, HL7, FHIR, IHE, ICD, SSO, SAML/Shibboleth, OAuth, smartcards, JWT, two factor authentication Android and iOS, Wireshark, BrowserStack, Cypress, gRPC, REST, SOAP, WS-Security, Linux Shell, PowerShell, SSH/SSL, Java, Kotlin, Cordova, Gradle, Groovy, Python, TypeScript
Artur S.
Last position:
Senior Consultant at MHP - A Porsche Company
Design, development, and consulting of software solutions in international, cross-functional agile projects (SAFe / Scrum), focusing on financial services and UX development.
Service Unit: Customer Experience Digital Solutions
Timur Y.
Last position:
Lead Frontend Developer | Fullstack Developer at Finanz Informatik
- Further development of an application for managing personnel changes.
- Development of frontend and backend.
- Implementation of the frontend with React and Material UI.
- Implementation of the backend with Java and Spring Boot.
- Use of React, Java, Spring, TypeScript, next.js, Material UI, Github Enterprise, Figma, Docker, Playwright, swagger, swagger UI, OpenAPI, npm, yarn, git.
Thomas F.
Last position:
Senior Fullstack Developer at DB InfraGO AG
- Frontend: new development in Angular
- Backend: new development in ASP.NET Web API
- Database: modeling, implementation, and operation based on Microsoft SQL Server
- Requirements management, design, and implementation
- Deployment, maintenance, operation
- Knowledge transfer to internal staff
- Agile development (SCRUM)
Igor P.
Last position:
Senior Frontend Developer at Objego GmbH
Within the project, Objego's digital platform for real estate management was further developed.
Further development of various software modules within the application.
Continuous improvement and optimization of existing functionalities to enhance performance and user experience.
Design and implementation of unit tests to ensure code quality and stability.
Close collaboration with the QA team to quickly fix bugs.
Implementation of new features in coordination with stakeholders and end users.
Active member of the Scrum team with a focus on agile methods and continuous improvement of the software.
Technologies: Angular 16/17, Material, Angular CDK, Angular Elements, Nx, NgRx, NgNeat, NgX-Translate, NgX-Charts, NgX-Lottie, NgX-Markdown, Sentry, Azure AI Form Recognizer, Lodash, Dayjs, Flatpickr, Lottie-Web, Mixpanel, RxJS, Prettier, ESLint, Webpack, Cypress, Playwright, Jest, Husky, TypeScript, Node.js, Zone.js, Docker, Spring Boot, Git, Figma, Figma Token, Storybook, Jira, Confluence, Atlassian, Gitlab CI/CD, Codecov, Custom Design System, Mockoon.
Robert B.
Last position:
Lead Developer & Consultant at BIOCOM AG
Solo full-stack developer for upgrading a Rails 4 legacy application to Rails 7, including deployment setup via Capistrano and NGINX configuration
Delivered a custom admin dashboard with ChartJS reports, PDF generator and CSV batch importer via Administrate
Implemented new features for reporting, import, data management and GDPR compliance, redesigned core components
Discover over 15,000 top freelancers
Statistics of experts using RxJS
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 19 years)
Position duration
1.8 years (Germany: 1.7 years)
Positions per freelancer
17 (Germany: 15)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Healthcare
Certification focus areas
Information Technology, Project Management, Human Resources
Bachelor's degree or higher
80% (Germany: 87%)
Master's degree or higher
40% (Germany: 30%)
Doctorate
20% (Germany: 7%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, Russian
Speak two or more languages
100% (Germany: 99%)
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 Frankfurt 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 Frankfurt using RxJS
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.
RxJS 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%)
- Banking and Finance (75%)
- Healthcare (75%)
- Transportation (63%)
- Automotive (50%)
- Education (50%)
- Manufacturing (50%)
- Energy (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Reactive foundations
RxJS, short for Reactive Extensions for JavaScript, is a library for composing asynchronous and event-based programs with observable sequences. It helps teams represent clicks, HTTP responses, WebSocket messages, timers and other events as streams. Operators transform, combine and control those streams so complex timing logic stays explicit and testable.
Application patterns
RxJS is widely used in Angular front ends for search suggestions, form validation, route data, state updates and live dashboards. It also supports Node.js services that process events, coordinate asynchronous work or consume message streams. Strong designs separate stream creation, transformation and subscription, preventing hidden side effects and difficult-to-trace race conditions.
Ecosystem and tooling
Professionals often work with TypeScript, Angular, NgRx, Redux-style state patterns and browser APIs. They use operators such as switchMap, mergeMap, concatMap, debounceTime and shareReplay according to the required concurrency and caching behavior. Marble tests, Jest, browser developer tools and TypeScript checks help verify timing, cancellation and error handling.
When expertise matters
Companies usually bring in freelance RxJS specialists when reactive code has become hard to understand, production behavior is inconsistent or a real-time feature must ship without destabilizing the application.
- Refactor nested subscriptions and unclear stream logic
- Design state flows for Angular or NgRx applications
- Connect WebSockets, APIs and event sources
- Improve cancellation, error recovery and subscription cleanup
What strong specialists deliver
A strong professional chooses operators based on business behavior rather than familiarity. They make hot and cold observables, multicasting, backpressure and subscription lifecycles clear to the team. They also define boundaries between UI state, transport data and domain logic, then document the decisions that affect future maintenance.
Working with Frankfurt teams
RxJS work suits remote collaboration when repositories, test cases and stream behavior are documented clearly. On-site or hybrid work in Frankfurt can help when the specialist must pair with a front-end team, map event flows across departments or align with product and platform stakeholders. German and English may both matter in local teams, depending on the project.
A practical engagement starts with a focused review of the current observable design, build setup and testing approach. The specialist should leave behind readable operators, reliable tests and guidance that the internal team can use after delivery.
Frequently asked questions
Curious about RxJS? Here are the answers that come up again and again.
RxJS is used to model asynchronous and event-driven behavior as observable streams. Companies use it for live search, form interactions, WebSocket updates, state coordination, API workflows and other tasks where events must be combined, transformed, delayed or cancelled.
RxJS handles streams of values over time, while a Promise represents one eventual result. Promises and async and await are often simpler for single asynchronous operations; RxJS is more suitable when cancellation, event composition, timing or multiple emissions are central to the design.
A capable RxJS specialist usually brings strong TypeScript and JavaScript knowledge, plus experience with Angular, NgRx, browser APIs and HTTP clients. Testing with Jest or marble tests, WebSockets, state management and front-end performance are useful depending on the project.
The right level depends on the scope and risk, not on a fixed number of years. A focused operator review may need a specialist who can quickly diagnose stream behavior, while a large Angular or real-time system needs proven skill in architecture, testing, error handling and team enablement.
Yes. RxJS work can be delivered remotely when the team shares code standards, observability details, test expectations and clear acceptance criteria. Frankfurt-based on-site or hybrid collaboration can be useful for complex domain mapping, pairing and workshops, especially when stakeholders prefer face-to-face sessions.
Ask the specialist to explain why each operator is used and how cancellation, errors, completion and subscription cleanup behave. High-quality RxJS work has focused streams, predictable side effects, meaningful tests and no unnecessary nesting or duplicated subscriptions.
No. RxJS is independent of Angular and can be used with React, Vue, Node.js or plain JavaScript. Angular has made it especially common because its ecosystem uses observables extensively, but the library is valuable wherever applications process asynchronous events or continuous data.
A freelancer should clarify the current RxJS version, framework, state model, data sources and testing practices before changing stream logic. It is also important to understand whether the task involves hot observables, shared subscriptions, real-time delivery or migration from older Reactive Extensions for JavaScript patterns.
The average hourly rate of freelancers in Frankfurt, Germany who have used RxJS in their recent projects is 94 €, which corresponds to a daily rate of about 753 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used RxJS in their recent projects, 80% hold at least a Bachelor's degree, 40% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers in Frankfurt, Germany who have used RxJS 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 Frankfurt, Germany who have used RxJS in their recent projects are German (100%), English (100%), and Russian (25%).
The most common industries among freelancers in Frankfurt, Germany who have used RxJS in their recent projects are Information Technology (100%), Banking and Finance (75%), and Healthcare (75%).
The most common business areas among freelancers in Frankfurt, Germany who have used RxJS in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (50%).
Main locations of FRATCH Experts, who have recently used RxJS
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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